Consultation ERKAN is pleased to provide this living document for unlocking the
evergrowing vocabulary of Abbreviations and Acronyms of the Telecommunications world,
including those of the early days before the word "Digital" was coined. We strive to include all relevant terms and update the database frequently. Our coverage
of more than 40,000 enteries is not "complete", contributions are gratefully accepted.
0TLP Zero Transmission Level Reference Point 1/e First Edition 10ARSS No. 10A Remote Switching System 10B12B 10-Bits/12-Bits 10B2 10Base2 10BT 10BaseT 10FR Ten Party Flat Rate 10FSL 10.0 File System Layout 10X 10-Speed 12X 12-Speed 16CIF 16 times CIF 1AESS No. 1A Electronic Switching System 1ANCP No. 1A Network Control Point 1ASES No. 1A Service Evaluation System 1AVSS No. 1A Voice Storage System 1BTSPS No. 1B Traffic Service Position System 1EAX No. 1 Electronic Automatic Exchange 1ESS No. 1 Electronic Switching System 1FR One-Party Flat Rate 1MM 1 Meg Modem 1MMS 1 Meg Modem Service 1MR One-Party Message Rate 1NCP No. 1 Network Control Point 1NF First Normal Form 1P 1-Party Line (Individual Line) 1PSS No. 1 Packet Switching System 1STP No. 1 Signal Transfer Point 1TSPS No. 1 Traffic Service Position System 1X Single-Speed 1XB No. 1 Crossbar 2 Dr 2 Draht (2 Wire) 2/e Second Edition 2ASTP No. 2A Signal Transfer Point 2B1Q Two Binary One Quaternary 2BESS No. 2B Electronic Switching System 2D 2-Dimensional 2Dr 2 Draht (2 Wire) 2DT Second Dial Tone 2EAX No. 2 Electronic Automatic Exchange 2ESS No. 2 Electronic Switching System 2FR Two Party Flat Rate 2FRR Two Party Flat Rate Ring 2FRT Two Party Flat Rate Tip 2MI/O 2 Mbit/s Input/Output 2MXC 2 Mbit/s Cross Connect 2NCP No. 2 Network Control Point 2NF Second Normal Form 2P 2-Party Line 2PPAPM Two-Pulse Amplitude and Phase Modulation Modem 2STP No. 2 Signal Transfer Point 2W 2-Wire 2WC Two-Way Call 2WTI 2-Wire Trunk Interface 2WW Two-Way WATS 2X Double Speed (2-Speed) 3-D 3-Dimensional 3/e Third Edition 3AU 3.1 kHz Audio 3B2T Three Binary Two Ternary 3CL Three Current Loop 3D 3-Dimensional 3D-TV Three-Dimensional Television 3DA 3-Dimensional Architecture 3DES Triple DES 3DOF Three Degrees of Freedom 3DR 3DRender 3ESS No. 3 Electronic Switching System 3GL Third Generation Language 3NF Third Normal Form 3P Three Pole 3PC Third Party Connect 3PDT Three Pole, Double Throw 3PST Three Pole, Single Throw 3PTY Three Party 3PTY Three Party Conference 3RD NUM Third Number 3WC Three-Way Calling 3WC Three-Way Call 3WC/CT Three-Way Calling/Call Transfer 3WC/CXR Three-Way Calling/Call-Transfer (Flash) 3WCPUB Three-Way Calling Public 3X Triple Speed (3-Speed) 3XB No. 3 Crossbar 4 Dr 4 Draht (4 Wire) 4/e Fourth Edition 4AETS No. 4A Electronic Translator System 4AXB No. 4A Crossbar Switching System 4B/3T Four Binary/Three Ternary 4B3T Four Binary Three Ternary 4CIF 4 times CIF 4D Four-Dimensional 4Dr 4 Draht (4 Wire) 4ESS No. 4 Electronic Switching System 4FR Four Party Flat Rate 4FRN Four-Fiber-Ring Node 4GL Fourth-Generation Language 4P Four Pole 4P 4-Party Line 4PAM Four-Level Pulse Amplitude Modulation 4PDT Four Pole, Double Throw 4PST Four Pole, Single Throw 4W 4-Wire 4WC Four-Way Call 4WTI 4-Wire Trunk Interface 4WTS Four Wire Terminating Set 4X Quadruple Speed (4-Speed) 4XB No. 4 Crossbar Switching System 5/e Fifth Edition 56C 56 kbps Circuit Mode Data 5B/4B Five Bits/Four Bits 5ESS No. 5 Electronic Switching System 5RSM 5ESS Remote Switching Module 5X Pentuple Speed (5-Speed) 5XB No. 5 Crossbar Switching System 6/e Sixth Edition 64C 64 kbps Circuit Mode Data 68K Motorola 68xxx-Series Microprocessor 6DOF Six Degrees of Freedom 6WC Six Way Calling 6X Sextuple Speed (6-Speed) 7D Seven Digit number 88K Motorola 88xxx-Series Microprocessor 8FR Eight Party Flat Rate 8P 8-Party Line 8X Octuple Speed (8-Speed) 9 Nine
A Accepted A Access (link) A Accumulator Register A Acknowledgement A Activation A Actual A Adaptation A Address A Address field A Address-Recognized A Agent A Aggregate A Amper A Ampere(s) Å Angström A Application Layer A Application Layer Service a Archive Library a Atto... (10-18) A Availability A Hypertext Anchor (HTML tag) A&D Analysis and Design A&E Arts and Entertainment Network A&M Additions and Modifications A/A Analog to Analog A/C Air Conditioner A/D Add/Drop A/D Analog-to-Digital A/D analogue-to-digital A/E Actual to Estimated A/G Air to Ground A/N Aphanumeric A/PC Auto PC A/R Alternate Route A/S Asynchronous/Synchronous A/S/C Alarm, Status, and Control A/SYS Access System A/V Audio/Visual a1 a-wire connection at the terminal equipment input port A1S All Ones a2 a-wire connection at the output port of a series-connected terminal equipment A3 Authentication Algorithm A3 A5/1 Encryption Algorithm A5 A5/2 Encryption Algorithm A5 A8 Algorithm A8 AA Absolute Address AA Access Agent AA Administrative Authority AA Alternate Addressing AA Application Assistant AA Application Association AA ATM Adaptor AA Audit Agent AA Automatic Answer A-A Analog to Analog AA1 ATM Adaptor, Type 1 AAA Authentication, Authorization and Accounting AAA Authentication, Authorization, Administration AAA Automated Acquisition Access AAAS American Association for the Advancement of Science AAB Automatic Alternative Billing AAB Automatic Answerback AABN AMA Alternate Billing Number AABS Automated Alternate Billing Service AABS+ Automated Alternate Billing Service Plus AAC Application Access Conditions AACS Air and Airways Communication System AAD Analog Alignment Disk AAE ATM Adaptation Entity AAE Auxiliary Access Equipment AAF Advanced Authoring Format AAI Alarm/Action Indicator AAK Answer Agent Key AAL ATM Adaptation Layer AAL1 ATM Adaptation Layer 1 AAL-1 ATM Adaptation Layer 1 AAL2 ATM Adaptation Layer 2 AAL-2 ATM Adaptation Layer 2 AAL3 ATM Adaptation Layer 3 AAL-3 ATM Adaptation Layer 3 AAL-3/4 ATM Adaptation Layer 3/4 AAL4 ATM Adaptation Layer 4 AAL-4 ATM Adaptation Layer 4 AAL5 ATM Adaptation Layer 5 AAL-5 ATM Adaptation Layer 5 AAL-CU AAL Composite User AALM AAL Management AALME AAL Management Entity AALP ATM Adaptation Layer Parameters AAN ATM Access Node AANS Auto Answer AAP Alternate Access Provider AAP Atomic Action Protocol AAPI Applet Application Programming Interface AAR Automatic Alternate Routing AAR Automatic Alternative Routing AARE A-Associate REsponse AARE A-ASSOCIATE response/confirm AARQ A-Associate ReQuest AARQ A-ASSOCIATE request/indication AAS Abbreviated Address Signal AAS Advanced Automation System AAS Automatic Announcement Subsystem AAT Agent Architecture Team AAT Automatic Answer Trunk AAT Automation of Analysis Tools AAT Availability Analysis Tool AAT Average Access Time AATP Away Across The Pond AAU Audio Access Unit AAU Automatic Answering Unit AAV Agile Autonomous Vehicle (Four-Legged Robot Vehicle) AAx ATM Adaptor, Type x AB Abbreviated Business Group Extension Number AB Access Burst AB Affected By AB Answer Back AB Automated Bibliography AB Postal code for Alberta ABA Additional Buffer Allocation ABATS Automatic Bit Access Test System ABB Aggregate Building Block ABB Assea Brown Boveri (S-D-CH) ABBH Average Bouncing Busy Hour ABBR Abbreviated ABBR Abbreviation ABBT Automatic Board-to-Board Testing ABC Abstract Base Class ABC Alcatel Business Communication ABC American Broadcasting Company ABC Answer-Back Code ABC ATM Bus Controller ABC Australian Broadcasting Corporation ABC Auto Billing Calling ABC Automatic Background Control (video) ABC Automatic Bass Control ABC Automatic Brightness Control ABC Automatic Business Connections ABCB AB Control Block ABCE ATM Broadband Control Element ABCE Automatic Bridged Call Exclusion ABCEACC Automatic Bridged Call Exclusion Access Codes ABCETACC Automatic Bridged Call Exclusion Toggle Access Code ABCN AMA Business Customer ID ABD Abbreviated Dialing ABD Average Business Day ABDA Automated Bilingual Directory Assistance ABDB A/B Trunk Data Block ABE Audited Build Executor ABEND Abnormal End ABET Accreditation Board for Engineering and Technology ABF Application By Form ABH ABCD Bit Handler ABH Average Busy Hour ABI Application Binary Interface ABIOS Advanced BIOS ABL Area Business Listing ABL Automatic Business Listing ABM Access Bandwidth Manager ABM Asynchronous Balanced Mode ABM ATM Buffer Manager ABNF Augmented BNF ABNN Add Bridged Night Number ABO Automatic Build-Out ABOM A-bis Operations and Maintenance ABR Answer/Bid Ratio ABR Area Border Router ABR Available Bit Rate ABRT A-ABORT request/indication ABS ABSolute abs Absolute Value ABS Acrylonitrile Butadiene Styrene copolymer (plastic) ABS Alarm Battery Supply ABS Alternate Billing Service(s) ABS Alternate Billing System ABS ATM Bearer Service ABS Authorized Bearer Services ABS Automatic Balance Selection ABS Average Busy Season ABSBH Average Busy Season Busy Hour ABSS Automated Broadband Surveillance System ABT Abort ABT ATM Block Transfer ABT/DT ATM Block Transfer with Delayed Transmission ABT/IT ATM Block Transfer with Immediate Transmission ABTT Advisory Board on Technical Trends (ISO-IEC) ABU Asia-Pacific Broadcasting Union AC ACcept AC ACceptor control AC Access Channel AC Access Charge AC Access Class (C0 to C15) AC Access Concentrator AC Access Connection AC Access Control AC Access Customer AC Account Code AC Acknowledged Connectionless AC Action AC Action Coordinator AC Agent Command AC Alerting Channel AC Alignment Check AC Alternating Current AC Announcement Controller AC Answer Complete AC Answered Calls Only AC Application Context AC Area Code AC Assignment Channel AC Attendant Console AC Authentication Center AC Authentication Code AC Authentications Centre AC Authorization Center AC Authorization Code AC Automatic Callback AC Automatic Control AC Awaiting Connection AC/ADC Automatic Callback/Any Designated Call ACA Adaptive Channel Allocation ACA Advanced Computer Application (IIASA' group) ACA Area Coverage Analysis ACA Authorization Code Assurance ACA Automated Cable Analysis ACA Automatic Circuit Assurance ACAP Application Configuration Access Protocol ACARD Advisory Council for Applied Research and Development ACAS Access Charge Analysis System ACAS Application Control Architecture Services ACATS Advisory Committee on Advanced Television Systems ACAU Automatic Calling and Answering Unit ACB Access Barred message ACB Access Barred signal ACB Account Code Billing ACB Address Control Block ACB Automatic Call Back ACB Automatic Callback ACBA Automatic Callback Activate ACBAC Automatic Callback Active/Inactive Status ACBACC Automatic Callback Access Codes ACBAR Automatic Callback/Automatic Recall ACBB Automatic Callback Billing Records ACBD Automated Component Based Development ACBD Automatic Callback Deactivate ACBG Automatic Callback Business Group ACB-I ISDN Automatic Callback ACBISW Automatic Callback Intra-Switch Only ACBMA Automatic Callback Maximum Allowed ACBT Automatic Callback Toggle ACBT1 Automatic Callback Timer 1 ACBT3 Automatic Callback Timer 3 ACBT4 Automatic Callback Timer 4 ACBT5 Automatic Callback Timer 5 ACBTACC Automatic Callback Toggle Access Code ACBTYPE Automatic Callback Type ACC ACCepted ACC Access ACC Access Code(s) ACC Access Control ACC Access Node ACC ACCmulator ACC Account Card Calling ACC Account Code ACC Accumulator ACC Adaptive Channel Control ACC Address Complete Coin ACC Analog Control Channel ACC Anonymous Credit Card aCC ANSI C++ Compiler ACC Area Control Centre ACC Augmented ClearCase ACC Australian CCITT Committee ACC Automated Calling Card ACC Automated Credit Card ACC Automatic Congestion Control ACC Automatic Congestion Control Information message ACCA All-Channel Concentric Allocation ACCAN Alternate Credit Card Account Number ACCB ANI/Coin Control Block ACCD Account Code Digits ACCD Address or Command Collection Dialog AccDi Access Delivery Information ACCFB Attendant-Extended Calls to Call Forwarding Busy ACCFNA Attendant-Extended Calls to Call Forwarding No Answer ACCH Associated Control Channel ACCM Asynchonous Control Character Map ACCMD Access Mode ACCN Alternate Credit Card Number ACCOLC Access Overload Class ACCS Automated Calling Card Service ACCS Automated Calling Card System ACCS Automatic Calling Card Service ACCT ACCes Time ACCT Account Codes ACCY ACCuracY ACD Accumulated Connection Delay ACD Active Call Dialog ACD Adobe Capture Document ACD Agent Command Dictionary ACD Alarm Control and Display ACD Automatic Call Distribution ACD Automatic Call Distributor ACD Automatic Cash Dispenser ACD Average Call Distance ACD/MIS Automatic Call Distribution Management Information System ACDB Agent Command Database ACDB Automatic Call Distribution Base ACDDN Automatic Call Distribution Directory Number ACD-ESS Automatic Call Distributor-Electronic Switching System ACDF Access Control Decision Function ACDMIS Automatic Call Distribution Management Information System ACDMR ACD Management Reports ACDNR Automatic Call Distribution Not-Ready ACDRTD ACD Real Time Display ACE Access Connection Element ACE Access Control Entry ACE Access-Control Entry ACE Adaptive Communication Environment ACE Advanced Computing Environment (Compaq) ACE Adverse Channel Enhancements ACE A-Interface Control Element ACE Application Connection Element ACE Application Creation Environment ACE Assessment and Conversion Environment ACE Asynchronous Communication Element ACE ATM Crossbar Element ACE Audio Compression/Expansion ACE Automated Cable Expertise ACE Automatic Cable Expertise (ATT) ACE Automatic Calling Equipment ACE Automatic Crossconnect Equipment ACE Auxiliary Control Element ACEC Advisory Committee on EMC (IEC) ACEES Attendant Console End-to-End Signaling ACEG Alternating Current Equipment Ground ACELP Algebraic Codebook-Excited Linear Prediction ACET Advisory Committee on Electronics and Telecommunications ACF Access Configuration File ACF Access Control Field ACF Access Control Field (IEEE 802) ACF Access Control Function ACF Admission Confirm ACF Admission Confirmation ACF Advanced Collaborative Filtering ACF Advanced Communication Function (SNA) ACF Advanced Communications Facility ACF Advanced Communications Functions ACF Attribute Configuration File ACF Authentication Control Function ACF Auto-Correlation Function ACF/NCP Advanced Communication Function for the Network Control Program (SNA) ACF/VTAM Advanced Communication Function for the VTAM (SNA) ACFC Address and Control Field Compression ACG Adjacent Charging Group ACG Agent Command Generator ACG Automatic Call Gap ACG Automatic Call Gapping ACG Automatic Code Gap ACG Automatic Code Gapping ACGP Additional Calling Party Number ACH Attempts per Circuit per Hour ACH Automated Clearing House ACHARGE AMA Chargeable End ACHI Application Channel Interface ACI Access Control Information ACI Access-interface Channel Identifier ACI Additional Call Information message ACI Adjacent Channel Interference ACI Ameritech Communications, Inc. ACI Application Context Identifier ACI AT&T Communications Customer Interface ACI AT&T Communications ISDN ACI Automatic Call Identification ACIA Access Control Inner Area ACIA Asynchronous Communication Interface Adapter ACIA Asynchronous Communications Interface Adapter ACID Access Indentifier ACID Application Context ID ACID Atomic, Consistent, Isolated, and Durable ACID Atomicity, Consistency, Isolation, and Durability ACID Atomicity, Consistency, Isolation, and Durability (X.860) ACITS Advisory Committee on Information Technology Standardization (SOG-IT) ACK (affirmative) ACKnowledgement ACK Acknowledge ACK ACKnowledged ACK Acknowledgement ACK/NACK Positive/Negative ACKnowledgement ACL Access Control List ACL Access Control List (X.800) ACL Advanced CMOS Logic ACL Agent Communication Language ACL Application Call Leg ACL Asynchronous Connection Language ACL Automatic Congestion Level ACLU American Civil Liberties Union ACM Access Control Machine ACM Access Control Manager ACM Access Control Mechanism ACM Accumulated Call Meter ACM Active Call Model ACM Address Complete Message ACM Adjunct Call Model ACM Architecture Capture Method ACM Array Class Manager ACM Association for Computing Machinery ACM Audio Compression Manager ACMA Anchored Constant Modulus Algorithm ACMA Atlantic Cable Maintenance Agreement ACMOS Automatic Customer Message Outputting System ACMS Advanced Call Management Services ACMS Application Control and Management System (DEC) ACN ACount Number ACN Actual Carrier Number ACN ATM Carrier Networks ACNA Access Carrier Name Abbreviation ACNA Automatic Customer Name and Address ACNS ATM Carrier Network Services ACNS Attendant Console Night Service ACO Accounting Control Office ACO Additional Call Offering ACO Alarm Cut Off ACO Attendant Console Camp-On ACO Audible Cutoff ACO Augmented Channel Occupancy ACOB Additional Call Offering Billing Records ACOD Access Code Digits ACOLI Advance Circuit Order and Layout Information ACOM Attendant Console Operational Measurements ACOP Additional Connected Party Number ACOR Additional Call Offering- Restricted ACO-R Additional Call Offering- Restricted ACOS Advisory Committee On Safety (IEC) ACOT Analog Central Office Terminal ACOU Additional Call Offering- Unrestricted ACOU Additional Call Offering Unconditional ACO-U Additional Call Offering- Unrestricted ACP Action Control Point ACP Action Point ACP Adjacent Channel Power ACP Adjunct Call Processing ACP Advanced Communications Protocol ACP Alarm Control Process ACP Anywhere Call Pick-Up ACP Application Change Package ACP Application Circuit Pack ACP Architecture Control Process ACP Authorization Code Prefix ACP Automatic Circuit Provisioning ACP Auxiliary Communications Processor ACPA Audio Capture and Playback Adapter ACPE Application Call Processing Engine ACPI Advanced Configuration and Power Interface ACPM Association Control Protocol Machine (ACSE) ACPN Additional Called Party Number ACQS Automated Charge Quotation Service ACR Abandon Call and Retry ACR Absolute Category Rating ACR AC Voltage On Ring ACR Access Charge Recording ACR Account Code Required ACR Adaptive Controlled Routing ACR Aggregate CND Recording ACR Allowed Cell Rate ACR Allowed Current Rate ACR Anonymous Call Rejection ACR Attenuation to Crosstalk Ratio ACR Automatic Call Recording ACR Automatic Character Recognition ACRAC Anonymous Call Rejection Active/Inactive Status ACRB Anonymous Call Rejection Billing Records ACRE Authorization and Call Routing Equipment ACRJ Anonymous Call Rejection ACRONYM Any Concise Rendering of Obfuscatory Nomenclature Yielding Mnemonics (from: Dan Caugherty) ACRRC Anonymous Call Rejection Restricted Control ACRT Administrative CRT ACRTC Advanced Cathode Ray Tube Controller ACS Access Control Store (CCA/VTS) ACS Access Control System (DAB) ACS Advanced Cellular System ACS Advanced Communication Service (Bell) ACS Advanced Communication Services ACS Assembly Control System ACS Association Connection Segment ACS Asynchronous Communications Server ACS ATM Circuit Steering ACS ATM Core Switch ACS Automatic Call Back/Recall ACS Automatic Call Setup ACSA Access Control Specific Area ACSE Association Control Service Element ACSI Automatic Calling Station Identification ACSSB Amplitude-Compounded Single-SideBand modulation ACT Abstract Conformance Test ACT AC Voltage On Tip ACT Access Code Translations ACT Activate ACT Activatible act Activation ACT Active ACT Activity ACT Applied Computerized Telephony ACT Architecture Capture Team ACT Asynchronous Communication Tree ACT Audiographic Teleconference Terminal ACTA Adaptive-Cycle Tunable-Access ACTA America's Carriers Telecommunication Association ACTAS Alliance of Computer-Based Telephony Applications Suppliers ACTE Advisory Committee for Terminal Equipment ACTE Approval Committee for Terminal Equipment ACTE Approvals Committee for Telecommunications Equipment ACTE Approvals Committee for Terminal Equipment ActID Action Identifier ActID Activity Identifier ACTLU Active Logical Unit ACTOM Advisory Committee on Technical and Operational Matters (of Inmarsat) ACTPU Active Physical Unit ACTR Automatic Call Type Recognition ACTS Advanced Communication Technology Satellite ACTS Advanced Communications Technologies and Services ACTS Automated Coin Telephone Service ACTS Automated Coin Toll Service ACTS Automated Computer Time Service ACTS Automatic Circuit Test System ACTT Advanced Communication and Timekeeping Technology Actv Active ACTV Advanced Compatible TeleVision ACU Access Control Unit ACU Acknowledgement signal unit ACU Alarm Control Unit ACU Antenna Combining Unit ACU Antenna Coupling Unit ACU Automatic Calling Unit ACUTA Association of College and University Telecommunications Administrators ACW Address Code Word AD Abbreviated Dialing AD Active Directory AD Addendum Document to an OSI standard (ISO) AD ADdress AD Adjunct AD Application Directory AD Application Dispatch AD Architecture Defined AD Architecture Design AD Architecture Designed AD Area Director AD Assembly Drawing AD Autonomous Circuit-Mode Data AD Awaiting Disconnect AD ISO country code for Principality of Andorra A-D Analog to Digital ADA Add Authcode ADA Administration Agent ADA Advanced Directory Assistance ADA Aldus Developer's Association ADA AutoDirectional Antenna (Blaupunkt) ADACC Automatic Directory Assistance Call Completion ADACC-AB Automatic Directory Assistance Call Completion with Alternate Billing ADAD Automatic Dialing-Announcing Device ADAI Advanced Digital Audio Interface ADAP Adaptive Profile ADAPt Adaptive Digital Access Protocol ADARTS Ada-Based DARTS ADAS Automated Directory Assistance Service ADAS+ Automated Directory Assistance Service Plus ADAS+ Automated Directory Assistance System Plus ADB Alarm Detector Base ADB Apple (Inc.) Desktop Bus ADB Apple Desktop Bus ADBS Access Data Base System ADC Adaptive Data Compression ADC Add with Carry (80x86 inst) AdC Address Code ADC Address Complete ADC ADdress complete, Charge ADC Address Complete, Charge signal ADC Administration Center ADC Advanced Data Connector ADC Advanced Data Controller ADC American Digital Cellular ADC Analog/Digital Converter ADC Analogue to Digital Converter ADC Applied Data Communications ADCCP Advanced Data Communication Control Procedures ADCCP Advanced Data Communications Control Protocol ADCI Automatic Display Call Indicator ADCP Automated Data Changes Process ADCU Association of Data Communications Users ADD Adapter Device Driver ADD Add line to existing hunt group Add Addendum ADD Agent Data Decoupling ADDMD ADministrative Directory Management Domain ADDPH Add/Change Packet Handler Options ADDR Address ADDS Attribute Design Database System ADDS Automatic Direct Dialing System ADE Advanced Development Environment ADE Application Development Environment ADE Automatic Design Engineering ADEPT Analysis Data Extraction and Performance Tool ADF Access Control Decision Function ADF Access Data Function ADF Adapter Description File ADF Adaptive Digital Filter ADF ADdress Field ADF Affected Destination Field ADF Agent Data Framework ADF AMA Data File ADF Application Data File ADF Authentication Data Function ADF Automatic Direction Finder ADF Automatic Document Feeder ADF Auxiliary Distribution Frame ADFD Action Data Flow Diagram ADGT Advisory Group on Data Transmissions ADH Automatic Data Handling ADI Address Incomplete message ADI Address Incomplete signal ADI Alternate Digit Inversion ADI Area of Dominant Influence ADI Automatic Deactivation Indication ADI Automatic Deactivation Indicator ADK Applications Development Kit ADL Abbreviated Dialing ADL Abbreviated Dialing List ADL Address Data Latch ADL Animation Description Language ADLC Advanced Data Link Control ADLC Advanced Data Link Controller ADM Adaptive Data Multiplexing ADM Adaptive Delta Modulation ADM Add/Drop Multiplex ADM Add/Drop Multiplexer ADM Add/Drop Multiplexing ADM Add-on Data Module ADM Administration ADM ADMinistrative department (ETSI) ADM Administrative Management Domain ADM Agent Data Model ADM Asynchronous Disconnect Mode ADM Asynchronous Disconnected Mode ADMA Amplitude Division Multiple Access ADMD Administration Management Domain ADMD ADministration Management Domain (MHS) ADMF ADSI Data Message Format ADN Abbreviated Dialling Number ADN ADdress complete, No charge ADN Address Complete, No-charge signal ADN Administration ADN Advanced Digital Network ADNIC AMA DNIC ADO ActiveX Data Object ADO Add Option(s) ADO Add Order ADO Asynchronous Data Option ADP Adaptation Sublayer ADP Additional (Overtime) Period ADP Automatic Data Processing ADPACS Automated Data Processing And Communication Service ADPC Automatic Data Processing Center ADPCM Adaptive Delta-PCM ADPCM Adaptive Differential PCM ADPCM Adaptive Differential Pulse Code Modulation ADPE Automatic Data Processing Equipment ADPS Automatic Data Processing System ADPS Automatic Data Processing System ADPT ADaPTor, ADaPTer ADQ Almost Differential Quasi-ternary ADR Abbreviated and Delayed Ringing ADR Adaptive Routing ADR Address ADR Advanced Design Research ADR Application-Dependent Route ADR Availability Data Report ADS Active Double Star ADS Address Screening ADS Administration and Data Server (HICOM) ADS Advanced Digital System ADS Announcement/Detection Subsystem ADS Any Digital Switch ADS Application Developer's Seat ADS Application Development System ADS ASIC Design System ADS ATM Distributed Switch ADS Audiogram Delivery Service ADS Austrian Digital Switch ADS Austrian DMS System ADS Automatic Data Set ADSH Audio Stream Handler ADSI Active Directory Service Interface ADSI Advanced Display Services Interface ADSI Analog Display Services Interface ADSL Asymmetric Digital Subscriber Line ADSL Asymmetrical Digital Subscriber Line ADSL Asymmetrical Digital Subscriber Loop ADSM ADSTAR Distributed Storage Manager ADSP Advanced Digital Signal Processor ADSP Apple Datastream Protocol ADSP AppleTalk Data Stream Protocol ADSR Automatic Dead System Recovery ADT Abstract Data Type ADT Access for Windows Developer's Toolkit ADT Advanced Display Technology ADT Alaska Daylight Time ADT American District Telegraph ADT Atlantic Daylight Time ADT Audit Driver Task ADT Automatic Data Transmission ADT Automatic Deactivation Threshold ADTC Austrian Digital Trunk Controller ADTE Asynchronous Data Terminal Equipment ADTE Automatic Deactivation Threshold Exceeded ADTF ACR Decrease Time Factor ADTS Automated Data and Telecommunication Service ADTS Automated Digital Terminal System ADTS Automatic Data Test System ADTS Automatic Digital Transmission System ADTV Advanced Digital Television ADU Accumulation and Distribution Unit ADU Application Data Unit ADU Automatic Dialing Unit ADU Automatic Dialling Unit ADVICE Aid in Design Verification for IC Engineering ADVM Adaptive Delta Modulation Voice Modem ADW Aerial Distribution Wire ADW Analysis and Design Workstations ADX Address Complete, Coin-Box signal ADX Automatic Exchange AE Acceptor Error AE Address Extension AE Application Entity AE Application Entity (OSI-AL) AE Applications Environment AE Automatic Electric Co. AE Automation Environment AE ISO country code for United Arab Emirates AEA American Electronics Association AEC Acoustic Echo Canceller AEC Acoustic Echo Control AEC Alternate Exchange Carrier AEC Architecture, Engineering, and Construction AECMA Association Européenne des Constructeurs de Matériel Aérospatial AECo Automatic Electric Company AEE Asociacion ElEctrotécnica AEF Access Control Enforcement Function AEF Additional Elementary Functions AEF Address Extension Field AEI Additional Equipment Interface AEI Application-Entity Invocation AEIMP Apple Event Interprocess Messaging Protocol AELE Association Européenne de Libre Echange (EFTA) AEM Analogue Extension Module AEMK Answer Emergency Key AEN Asynchronous Event Notification AENOR Asociacion Espanola de NORmalizacion (E) AENOR Asociacion Espanola de Normalizacion y Certificacion AEP Acoustic Echo Path AER Application Event Record AER Application Event Recorder AER Application Event Recording AERM Alignment Error Rate Monitor AES Aircraft Earth Station AES Application Environment Specific AES Application Environment Specification AES Asynchronous Event Scheduler AES ATM End System AES Audio Engineering Society AES Auger Electron Spectroscopy AES/EBU Audio Engineering Society/European Broadcast Union AESA ATM End Station Address AESA ATM End System Address AESC Automatic Electronic Switching Center AET Application Entity Title AET Architecture Evolution Team AETJ GTE Automatic Electric Technical Journal (periodical) AF Access Facility AF Access Fault AF Access Function AF Address Family AF Adjust Flag AF Alternative Frequencies (RDS) AF Applications Framework AF Audio Frequency AF AudioFile AF Auxiliary Carry Flag AF ISO country code for Islamic State of Afghanistan A-F Actual Operators to Final Operators AFADS Automatic Force Administration Data System AFAIK As far as I know AFC Additional Functional Call AFC Address Complete, Subscriber Free, Charge signal AFC Alternate Function Code AFC Application Foundation Classes AFC Automatic Fee Collection AFC Automatic Frequency Control AFDP Adaptive File Distribution Protocol AFE Active Feature Element AFE Analog Front End AFF Advanced Filtering Facility AFFUT Association Française des Utilisateurs du Téléphone et des Télécomunications AFG Access Feature Grouping AFI Authority and Format Identifier AFI Authority and Format Identifier (NSAP) AFIPS American Federation of Information Processing Societies AFIS Aerodrome Flight Information Service AFIT Automated Fault Insertion Testing AFL Application Framework Library AFM Adobe Font Metric AFM Atomic Force Microscope AFM Atomic Force Microscopy AFM Audio Frequency Modulation (8mm VTR Sony Inc.) AFN Access Feeder Node AFN Address Complete, Subscriber Free, No-Charge signal AFN All Figure Number AFNOR Association Francaise de Normalisation AFP Advanced Freephone AFP AppleTalk Filing Protocol AFP Automatic Floating Point AFP Automatic Frequency Planning AFPS Advanced File and Print Services AFPS Automatic Facility Protection Switching AFR AFR Trigger AFR Annualised Failure Rate AFR Automatic Field Recognition AFR Automatic Flexible Routing AFR Automatic Format Recognition AFR Awaiting Forward Release AFRDP Automatic Flexible Routing Dialing Plan AFS Advanced Freephone Service AFS Andrew File System AFS Andrew File System (TCP/IP) AFS Audit File Switch AFSK Audio Frequency Shift Keying AFT Adapter Fault Tolerance AFT Analog Facility Terminal AFT Authentication Firewall Traversal AFT Automatic File Transfer AFT Automatic Frequency Tuning AFTN Aeronautical Fixed Telecommunication Network AFUTT Association Francaise de Telephone et des Telecommunications (F) AFX Address complete, subscriber Free, coin boX AFX Address Complete, Subscriber Free, Coin-Box signal AG Address Generation AG Advisory Group (ETSI) AG Aktien Gesellschaft AG Associated Group AG ISO country code for Antigua and Barbuda AG Try Again AG/EEE Above Ground Electronic Equipment Enclosure AGA Associated Group Assignment AGA Associated Group Assignments AGC Access Group Controller AGC Advanced Graphic Controller AGC Automatic Gain Control AGC Automatic Gapping Controls AGCH Access Grant Channel AGCS AG (AT&T/GTE) Communication Systems AGDS Absolute Global Data Segment AGE Automation Generic Environment AgentX Agent Extensibility AGEX Address Generation/Execute Cycle AGGR Aggregate AGI Address Generation Interlock AGI Associated Group Indicators AGIS Apex Global Information Services AGND Analogue GrouND AGNES Aggregate Network Evolution Simulator AGP Accelerated Graphics Port AGP Advanced Graphics Port AGR Adaptive Grooming Router AGRP Associated Group AGRU Automatische Ansage gaenderter Rufnummern (Call forward to automatic announcement of changed directory numbers) AGS Assignable Grade of Service AGSR Authorized GSA Scheduler Representative AGT Active Generations Table AGT Alberta Government Telephone AGTK Application Generator Tool Kit AGV Automatic Guided Vehicle AH Acceptance Handshake AH Accumulator Register High Half AH Ad Hoc AH Application Header AH Artech House AH Authentication Header AH Average Hour AHAB Automated Headset Adapter Box AHAB Automatic Headset Adapter Box AHCA Average Hour Call Attempt AHCM Absolute Humidity Control Module AHFG ATM-attached Host Functional Group AHG Ad Hoc Group AHJ Authority Having Jurisdiction AHLF Additional High Layer Function(s) AHPL A Hardware Programming Language AHR Address Hold Register AHT Average Holding Time Ai Action indicator AI Activation Indication AI Active Indication AI Activity Interrupt AI Adapter Interface AI Address Incomplete AI Agent Information AI Air Interface Ai A-law Inverted AI Alerting Indication AI Antenna Interface AI Artificial Intelligence AI Aspect Interface AI Auto Inserted AI Automatic Identification AI Automatic Intercept AI ISO country code for Anguilla AIA Action Item Assignment AIA Application Integration Architecture (DEC) AIA Automatic Internal Administration AIAG Automative Industry Action Group aib Alarm Indication Bit AIB Automatic Intercept Bureau AIC Access Interface Card AIC Analog Interface Circuit AIC Asian ISDN Council AIC Automatic Intercept Center AIC Awaiting Incoming Continuity AID Access Identifier AID Access Point Identifier AID Agent ID AID Application Identifier AIDAF Agent Interworking Data Access Framework AIDS Automatic Inventory Directory System AIEA Agence International de l'Energie Atomique AIEE American Institute of Electrical Engineers AIF Additional Information Field AIF Application Interface AIF Audio Interchange Format AIFC AIFF With Built-In Compression AIFF Audio Interchange File Format AIFL Automatic Identification of Outward Dialing Failure AII Active Input Interface AII Additional Information Indicator AILC Asynchronous Interface Line Card AILU Asynchronous Interface Line Unit AIM Advanced Informatics in Medicine AIM Agent Interworking Mechanism AIM Apple, IBM, Motorola AIM Application Integration Module AIM Architectural Improvement of the Month AIM Asynchronous Interface Module AIM ATM Inverse Multiplexer AIM Automatic Inspect Mode AIM Awaiting Incoming Message AIMS Advanced Image Management System AIMS Auto-Indexing Mass Storage AIMUX ATM Inverse Multiplexing AIN Additional Information Number AIN Advanced Intelligent Network AIN Attribute Identification Number AINAP AIN Application Protocol AINDN Advanced Intelligent Network DN AINGR Advanced Intelligent Network Generic Requirements AINI ATM Internetwork Interface AINREL AIN Release AINS Automatic In-Service AINT Adjacent Intermediate Node Translator AINTC Automatic Intercept Service Call Completion AINTCC Automatic Intercept Call Completion AIO Additional Information Octet AIOD Automatic Identification Outward Dialing AIOD Automatic Identified Outward Dialing AIODLK Automatic Identified Outward Dialing Link AIP Additional Information Presentation (supplementary service) AIP Aditional Presentation Information AIP Agent Interworking Protocol AIP Air Interface Protocol AIR Action Item Resolution AIR Additive Increase Rate AIR Additive Increase to Rate AIR Ad-hoc Information Request AIR Allowed Information Rate AIR Attendant Console Intermediate Release AIRF Additive Increase Rate Factor AIRS Automatic Image Retrieval System AIRS Automatic Intercept Retrieval System AIS Alarm Indication Signal AIS Alarm Indication Signalling AIS Alarm Inhibit Signal AIS Atria Information Switchboard AIS Automatic Intercept Service AIS Automatic Intercept Signaling AIS Automatic Intercept System AISP Advanced ISP AISUP Australian ISUP AIT Additional Information Type AIT Advanced Intelligent Tape AIT Architecture Integration Team AIT Average Instruction Time AIU Access Interface Unit AIU Alarm Interface Unit AIU Analog Interface Unit AIV Architecture Integration and Verification AIW APPN Implementors' Workgroup AIX Advanced Interactive Executive AIX Advanced Interactive eXecutive (IBM/UNIX) AK Acknowledgement AK Attendant Key AK Data Acknowledgment AK U.S. postal code for Alaska aka Also Known As AKA Authentication and Key Agreement AKM Apogee Kick Motor AKO Add Key Option AL Access Line AL Access Link AL Accumulator Register Low Half AL Alignment AL ALphabetic AL Ambience Listening AL Analog Link AL Analog Loopback AL Application Layer (OSI) AL Application Layer-Call Control Interface AL ISO country code for People's Socialist Republic of Albania AL U.S. postal code for Alabama AL1 Adaptation Layer 1 AL2 Adaptation Layer 2 AL3 Adaptation Layer 3 ALB Association Link Block ALBO Automatic Line Build-Out ALC Airline Link Control ALC Airlines Line Control (IBM) ALC Application Life Cycle ALC Automatic Level Control ALC Automatic Load Control ALCIN Alcatel Intelligent Network ALCM Austrian Line Concentrating Module ALD Architecture Level Design ALD Asymmetric Life Dependency ALD Attribute List Display ALD Automated Logic Diagram ALDOS ACI Long Distance Operations System ALE Address Latch Enable ALE Address Lifetime Expectancy ALE Address Lifetime Expectations ALE Approval Liaison Engineer (UK) ALERT ALERT function for different types of alert ALERT Alerting message ALF Application Layer Framing ALFA Automatic Laser-Fiber Assembly ALFE Alert Logic Filter Editor (Bool and Babbage) ALGC Austrian Line Group Controller ALGM ALGorithM ALGOL Algorithmic Oriented Language ALI Application Level Interface ALI ATM Link Interconnect ALI Automatic Line Identification ALI Automatic Location Identification ALIT Automatic Line Insulation Test ALIT Automatic Line Insulation Testing ALITS Automatic Line Insulation Testing System ALIU Alarm Line Interface Unit ALLC Automatic Logical Link Connection ALLF Additional Low Layer Function(s) ALM Alarm ALM AppWare Loadable Module ALM Association Link Manager ALM ATM Layer Manager ALMSTAT Alarm Status ALMSTATGRP Alarm/Status Settings Group Identifier ALN AMA Line Number ALO Association Link Object ALP Abstract Local Primitive ALP Application Layer Program ALP Automated Language Processing ALP Automated Learning Process ALPC Adaptive Linear Predictive Coding ALR Active Line Rotation ALR Advanced Logic Research ALRM Alarm ALRS Admiralty List of Radio Signals ALS Alerting Signal ALS Application Layer Service ALS Application Layer Structure (OSI) ALS Automatic Laser Shutdown ALSC Alternate Line Screening Code ALSTTL Advanced Low-power Schottky Transistor-Transistor Logic ALT Accelerated Life Test ALT Alerting message ALT Alternate ALT Alternate Local Transport Company alt Alternative ALT ALTitude ALT Automatic Line Test ALT Automatic Line Testing ALT Automatic Link Transfer ALTANN Alternate Announcements ALTP Accelerated Life-Cycle Test Program ALTS Alternative Local Transport Supplier ALTS Association for Local Telecommunications Services ALTS Automatic Line Test Set ALU Abbreviated Line-Up ALU Arithmetic and Logic Unit ALU Arithmetic Logic Unit ALU Arithmetic/Logic Unit ALU Average Line Usage ALU Average Line Utilization AM Access Management AM Access Manager AM Access Method AM Access Module AM Accounting Management AM Activity Manager AM Address Marker AM Address Modifier AM Administrative Module AM Agency Model AM Agent Manager AM Airline Mileage AM Alignment Mask AM AlphaMosaic AM Amplitude Modulation AM Ante Meridian AM Application Model AM ASCII Mediation AM Association Manager AM Audio Monitor AM DDOC Section: AMA/Billing Changes AM ISO country code for Armenia AM/PSK Amplitude Modulation/Phase Shift Keying AMA Automatic Message Accounting AMA TSG Automatic Message Accounting Technical Support Group AMAB Automatic Message Accounting Billing AMAB Automatic Message Accounting Buffer AMACC AMA Collection Center AMACS Automatic Message Accounting Collecting System AMACS Automatic Message Accounting Collection System AMAD AMA Digits Dialed Wild Card AMADNS Automatic Message Accounting Data Networking System AMAF Atlantech Management Application Framework AMAI AMA International AMAP Adaptive Mobile Access Protocol A-MAP A-field MAP AMARC Automatic Message Accounting Recording Center AMARCS Automatic Message Accounting Recording System AMARS Automatic Message Accounting Recording System AMASE AMA Standard Entry AMASTR AMA Structure Code AMAT Automatic Message Accounting Transmitter AMATP Automatic Message Accounting Transaction Processor AMATPS Automatic Message Accounting Teleprocessing System AMBCE Activation of Manual Bridging Call Exclusion AMC Access Multiplexer for CaTV AMC American Movie Classics AMCP Adjunct Mobility Control Point AMD Advanced Micro Devices AMD Ammendment AMDS Amplitude Modulation Data System AME Access Mechanism AMEL Active-Matrix Electroluminescent AMES ATM Mobility Extension Service AMF Access Management Function AMF Alternate Master Format AMF Application Messaging Framework AMF Association Manager Framework AM-FDM Amplitude Modulated-Frequency Division Multiplexed AMH Advanced Measurement Head AMI Alternate Mark Inversion AMI Alternate Mark Inversion (digital data transmission format) AMI American Megatrends, Inc. AMI American Microsystems International AMI Application Messaging Interface AMI Automatic Modem Insertion AMI Autonomous Message Interface AMIEE Associate Member of the Institution of Electrical Engineers (GB) AMIP Access Module Interconnect Paddle card AMIPC AM Interconnect Paddle Card AMIS Agricultural Market Intelligence System AMIS Audio Messaging Interchange Specification AML Actual Measured Loss AML Applications Module Link AMLCD Active Matrix Liquid-Crystal Displays AMLCD Active-Matrix LCD AMM Advanced Memory Management Amm Ammendment AMM Answer Mode Modem AMN Acknowledgement of Mcu Number AMON ATM Monitoring AMP Acknowledge Mode Protocol AMP Active Monitor Present AMP Agent Meeting Point AMP AIN Maintenance Parameter amp Ampere AMP Amplifier AMP Auxiliary Channel Multiplexing Pattern AMPS Advanced Mobile Phone Service AMPS Advanced Mobile Phone System AMPSK Amplitude Modulation Phase Shift Keying AMR Automatic Message Recording AMR Automatic Message Routing AMR5 Automatic Message Recording 5 AMRF Automated Manufacturing Research Facility AMS Amplitude Modulation Suppression AMS AT&T Message Service AMS ATM Main Switch AMS Audiovisual and Multimedia Service AMS AudioVisual Multimedia Service AMSAT Radio AMateur SATellite corporation AMSC American Mobile Satellite Corporation AMSRID Authorized Message Service Identification AMSS Aeronautical Mobile Satellite Service AMT Address Mapping Table AMT Advanced Manufacturing Technique AMT Ameritech Amt Amount AMTA American Mobile Telecommunications Association AMTICS Advanced Mobile Traffic-Information Communications System AMTOR AMateur Telex Over Radio AMTS Automatic Mobile Telephone System AMU Antenna Matching Unit AMVFT Amplitude Modulation Voice Frequency Telegraphy AMVSB Amplitude Modulation with Vestigial SideBands AM-VSB Amplitude Modulation-Vestigial Sideband AMW Automatic Message Waiting AMWN Audible Message Waiting Notification AMX ATM Multiplexer AN Access Network AN Access Node AN America's Network (periodical) AN Announcement Machine AN Annunciator AN Application Note AN ISO country code for Netherlands Antilles an power level ANA Article Numbering Association ANA Assigned Night Answer ANA Automatic Number Announcer ANAL ANALogue ANALIT Analysis of Automatic Line Insulation Tests ANBFM Adaptive Narrow-Band FM Modem ANC Active Noise Cancelation ANC All Number Calling ANC Answer Charge message ANC Answer Complete ANC ANswer signal, Charge ANC Answer, Charge signal ANC Area Number Calling ANCM Access Node Configuration Manager AND Abbreviated Number Delivery AND Automatic Network Dialing AND Logical AND ANDF Architecture Neutral Distribution Format ANDI Anmeldedienst (Enrollment Service) ANDI Logical AND Immediate ANET Asynchronous Network ANF Access Network Function ANF Additional Network Feature ANF Additional Network Features ANF Automatic Number Identification Failure AN-FR AN Frame Relay Function ANG Advanced Networking Group ANI Animated Cursor file ANI Automatic Number Identification ANI7 Automatic Number Identification 7 ANID Active Network Interface Device ANID Adjacent Network Identifier ANIE Associazione nazionale industrie elettrotecniche ed ellettroniche (Italy) ANIEL Associación Nacional de Industria Electronica (Spain) ANIF Automatic Number Identification Fail ANIF Automatic Number Identification Failed ANIF Automatic Number Identification Failure ANIS Analoger Teilnehmeranschluss an ISDN (analog subscriber served by digital local exchange) ANIS Analog-Teilnehmer an DIVO-VSt (analogue subscriber connected to digital exchange) ANL Automatic Noise Limiter ANLG Analog ANM Advanced NM (Net/Master, IBM) ANM Answer Message ANMS ATM Network Management System ANN Announcement ANN Answer No-Charge message ANN ANswer signal, No charge ANN Answer, No-Charge signal ANNC Announcement ANNS Announcements anot Automatic Notification ANP AAL Type 2 Negotiation Procedure ANP AAL2 Negotiation Protocol ANR Abnormal ANR Automatic Network Routing ANR Awaiting Number Received ANRST Abnormal-and-Restricted ANS Advanced Network & Services, Inc. ANS Advanced Network Systems ANS Advanced Networking Services ANS Alcatel Network Systems ANS American National Standard ANS Answer ANS Answer message ANS Answer signal ANS ATM Name Server ANS Automated Notification System ANSA Advanced Network System Architecture ANSA Advanced Networked Systems Architecture ANSC American National Standards Committee ANSI American National Standards Institute (US) ANSTIM Answer Timing ANT Antenna ANT Application of New Technologies ANTU Analogue Network Termination Unit ANU Answer Unqualified message ANUI AMA Network User Identification ANX Access Node Express ANZCAN Australia-New Zealand-Canada submarine cable AO Abort Output AO Acceptor Operable AO Account Owner AO Alternate Operator AO Answer Only AO Application Object AO Authorizing Origination point in call AO Automated Office AO ISO country code for Republic of Angola AO/DI Always On/Dynamic ISDN AO/S Agents Object System AO3 Add-On Conference- 3-Party AO6 Add-On Conference- 6-Party AOA Angle of Arrival AoC Advice of Charge AOC Advice Of Charge (supplementary service) AOC Aeronautical Operational Control AOC Automatic Overload Control AOC Awaiting Outgoing Continuity AoCC Advice of Charge (Charging) (supplementary service) AoCC Advice of Charge Charging AOC-D Advice of Charge (Service)- During call AOC-D Advice of Charge During the Call AOCE Apple Open Collaboration Environment AOC-E Advice of Charge (Service)- at End of call AOC-E Advice of Charge at the End of the Call AoCI Advice of Charge (Information) (supplementary service) AoCI Advice of Charge Information AOCP Additional Original Called Party Number AOCR Automatic Out-of-Chain Routing AOCS Attitude and Orbit Control System AOC-S Advice of Charge (Service)- at call Set-up time AOC-S Advice of Charge at Call Setup Time AODI Always On Dynamic ISDN AOG Alternative Operators Group AOI Active Output Interface AOI Area Of Interest AOL America Online AOL Application Oriented Language AON Active Optical Network AON All-Optical Network AON All-Optical Networking AONALS Type "A" Off-Network Access Lines AOP Annual Operating Plan AOP Attendant Overflow Position AOP Average Occupied Positions AOPL Application-Oriented Parsing Language AOPS Automated Office Protocol Standard AOQ Average Outgoing Quality AOQL Average Outgoing Quality Level AOR Application-Owning Region AOR Atlantic Ocean Region AOR Atlantic Ocean Region (INTELSAT) AORG Auto Originate AOS Acquisition Of Signal AOS Advanced Operating System AOS Agents Object System AOS Alternative Operator Services AOS Area of Service AOS Attitude and Orbit control Subsystem AOSS Auxiliary Operator Services System AOSSVR Auxiliary Operator Services System with Voice Response AOTC Australian and Overseas Telecommunication Corporation AOTF Acoustooptic Tunable Filter AOTF Acousto-Optical Tunable Fiber AOTS Advanced Orbital Test Satellite AOTT Automatic Outgoing Trunk Test AOW Asia-Oceania OSI Workshop AOW Asia-Oceania Workshop AOZ Address Complete, Without Additional Information AP Abstract Protocol AP Access Point AP Access Priority (TETRA) AP Access Privilege AP Access Protocol AP Access Provider AP Action Point AP Actionpoint AP Active Approval AP Adjunct Processor AP Administration Processor AP Administrative Point AP Administrative Processor AP Agency Protocol AP Agent Process AP Agent Profile AP Alerting Pattern AP Alternating Projection AP Application Part AP Application Process AP Application Profile (OSI-AL) AP Application Protocol AP Application(s) Processor AP Argument Pointer AP Assemblée Plénière (CEPT, CCIR, CCITT) AP Attendant Position AP&R Automated Prompt and Response APA Active Position Addressing APA All Points Adressable APA All-point Addressable (IBM WS capability for vector graphics) APAB All-Primary/All-Backup APAS Advanced Public Access Solutions APB Adaptive Prediction Backwards APB All Paths Busy APB All Positions Busy APC Access Processor Card APC Adaptive Power Control APC Adaptive Predictive Coding APC Adaptive-Predictive Coder APC Aeronautical Public Correspondence APC Alarm and Power Control APC AMARC Protocol Converter APC American Personal Communications APC American Power Conversion APC Analog Private Circuits APC Application Processor Cabinet APC Application Program Command APC Asia Pacific & CALA DMS-100 APC Asia Pacific Committee APC Asynchronous Procedure Call APC Automated Process Control APC Automatic Phase Control (PLL) APC Automatic Power Control APC Average Power Control APC-AB Adaptive Predictive Coding with Adaptive Bit allocation APCC Asia Pacific Conference on Communications APCI Association Potocol Control Information APCM Adaptive Pulse Code Modulation APCN Asia Pacific Cable Network APCO Association of Public Safety Communications Officials International APD Automatic Phase Detector APD Automatic Power-Down (IC) APD Avalanche Photo Detector APD Avalanche Photo Diode APD Avalanche Photodiode APDA Apple Programmers' and Developers' Association APDL Algorithmic Processor Description Language APDU Application Protocol Data Unit APDU Application Protocol Data Unit (OSI-AL) APE Abgesetzte Pheriphaere Einheit (Remote Peripheral Unit) APEC Asia Pacific Economic Cooperation APF Adaptive Prediction Forward APG Application Programming Guide APH Actionpoint Handler API Abbreviated Page Index API Advanced Product Information API Application Program Interface API Application Programmer Interface API Application Programming Interface API Application Protocol Interface API Application-Process Invocation API Applications Programming Interface API Asynchronous Pollable Interface API Asynchronous Polling Interface API Attached Processor Interface API/CS API/Communication Services APIA Application Programming Interface Association APIA X.400 API Association for X.400 APIC Advanced Programmable Interrupt Controller APIC Alternate Preferred IC Indicator APIC Alternate Preferred InterLATA Carrier APICI Alternate Preferred InterLATA Carrier Indicator APII Asia/Pacific Information Exchange APK Amplitude Phase Keying APK Amplitude-Phase-Keyed APL A Programming Language APL Advanced Parts List APL Advanced Programming Language APL Advisory Processor Lock APL Analog Private Line APL APpLication APL Average Picture Level (Video) APM Additional Packet Mode bearer service (CCITT I.122) APM Advanced Power Management APM Amplitude Phase Modulation APM Antenna to Partition Mapping APM Application Processor Module APM Application Transport Mechanism APM Application Transport Message APM Audio Processing Module APM Auxiliary Processing Machine APMS Application Penetration Monitoring System APMT Alcatel PMT APN Audio Processing Node APNB All-Primary/No Backup APNG Australia-Papua New Guinea submarine cable APNSS Analogue Private Network Signalling System APOC Advanced Paging Operations Code APOC Advanced POCSAG APOCS Atlantic Provinces Optical Cable System APOK Advanced Programming Object Kit APOLT APON Line Termination APON Asynchronous Passive Optical Network APON ATM over Passive Optical Network APONT APON Network Termination APP Additional PleniPotentionary conference (ITU) APP Application APP APplication Program APP Application Transport Parameter APP Approved APP Ascend Password Protocol APP Auxiliary Power Plant APPC Advanced Program-to-Program Communications (SNA-LU 6.2) APPL Application APPL Applications milestone APPN Advanced Peer-to-Peer Network (IBM) APPS Advanced Peripheral Processing Solution (National Semiconductors Inc.) APPS Applications APPV Advanced Pay-Per-View APPX Appendix APR Additional (Overtime) Period Rate APR Alarm Processing Remote APR Alternate Path Retry APR Automatic Position Reporting APRICOT Asia Pacific Regional Internet Conference on Operational Technologies APRL Average Power Return Loss APROX APPROXimate APS Administrative Processor System APS Advanced Power System(s) APS Advanced Printing Services APS Alarm Processing Subsystem APS Alternate Path Selection APS American Protective Services APS Application Server APS Asynchronous Protocol Specification APS Attached Processor System APS Attendant Pay Station APS Attended Pay Station APS Automatic Protection Switch APS Automatic Protection Switching APS Auxiliary Power Source APS/DP Automatic Protection Switching with Diverse Protection APSB All-Primary/Some Backup APSO Audio Precision System One APSS Automated Procedures Scheduling System APT Address Partition Terminator APT Advanced Parallel Technology APT Advanced Photoscale Technology APT Application Process Title APT Application Systems (Swedish) APT AT&T/Philips APT Automatic Programmed Tool APT Automatic Progression Testing APTU African Postal and Telecommunication Union APU Application Processing Unit APU Arithmetic Processing Unit APU Arithmetic Processor Unit APU Audio Presentation Unit APUX Application Processor Running Unix APX AppExpert Source File APX Autoplex APX10 Autoplex-10 APX-10 Autoplex-10 APX100 Autoplex-100 APX-100 Autoplex-100 APX1000 Autoplex-1000 APX-1000 Autoplex-1000 APZ Control System (Swedish) AQ Autoquote AQ ISO country code for Antarctica AQC Annual Quality Congress AQF Advanced Query Feature AQL Acceptable Quality Level AQL Acceptance Quality Level AQP Association for Quality and Participation AQSE Abstract Quality System Element AQUA Adaptive Quantized Update Algorithm AQUARIUS A Query And Retrieval Intractive Utility System AR Access Rate AR Access Rule AR Action Register AR Action Request AR Activation Request AR Activity Resume AR Address Register AR Allocated Rate AR Alternate Route AR Alternate Routed AR Alternate Routing AR Analysis Report AR Archive Library AR Aspect Ratio AR Audible Ringing AR Automatic Recall AR Awaiting Reply AR ISO country code for Argentine Republic (Argentina) AR U.S. postal code for Arkansas A-R Actual Operators to Required Operators AR1 Alignment Range 1 AR2 Alignment Range 2 ARA Agents for Remote Access ARA Alerting/Registration Area ARA AppleTalk Remote Access ARA Automatic Recall Activate ARA Automatic Resource Assignment ARABSAT ARAB SATellite Communications Organization ARAC Automatic Recall Active/Inactive Status ARACC Automatic Recall Access Codes ARAM Audio RAM ARAM Automatic Recall for Analog Member of EKTS ARAN Automatic Room Authorization Number ARAP Apple Remote Access Protocol ARB All Routes Busy ARB ARBitrary (waveform generator) ARB Architecture Review Board ARB Automatic Recall Billing Records ARC Access Request Channel ARC Access Rights Class arc Action Request Command ARC Adaptive Rate Conversion ARC Administrative Radio Conference ARC Alternate Route Cancel ARC Army Reuse Center ARC Attached Resource Computer ARC Attendant Recall ARC Automatic Reception Control (mono/stereo) ARCC Austrian Remote Cluster Controller ARCH Access Response Channel ARCH Architecture ARCHID Architecture Identifier ARCHNL AMA Remote Channel ARCM Automatic Recall/Callback Currently Active Monitoring ARD Access Rights Details ARD Adaptive RAKE Diversity ARD Arbeitsgemeinschaft der Rundfunkanstalten der Bundesrepublik Deutschland ARD Automatic Recall Deactivate ARD Automatic Ring Down ARDDN Automatic Recall Dialable Directory Number ARDIS Advanced Radio Data Information Service ARDN Automatic Route Selection Directory Number ARDS AT&T Communications Reference Distribution System ARDS AT&T Reference Distribution System ARDT Automated Radio Deployment Tool ARDT Automatic Recall Date and Time ARDY Asynchronous Ready ARE All Routes Explore ARE All Routes Explorer ARF Abort, Retry, Fail ARF Alarm Reporting Function ARF Alternative Routing From ARF Analog Receiver Filter ARF AT&T Communications Reference Frequency ARF AT&T Reference Frequency ARF Automatic Rate Fallback ARFA Allied Radio Frequency Agency ARFCN Absolute Radio Frequency Channel Number ARG Additional Redirecting Number ARG Argument ARI Access Rights Identity ARI Access Rule Index ARI Airborne Radio Instrument ARI Autofahrer-Rundfunk-Information ARI Automatic Room Identification ARI/FCI Address Recognized Indicator/Frame Copied Indicator (MAC/token ring) ARIA Automatic Recall Invalid Action ARIB Association of Radio Industries and Broadcasting ARIES Agent Related Interaction Enhancements for Services ARINC Aeronautical Radio, Inc. ARIS Aggregate Route-Based IP Switching ARIS Aggregated Route-Based IP Switching ARJ Admission Reject ARL Acceptable Reliability Level ARL Acoustic Reference Level ARL Adjusted Ring Length ARL Audio Reference Level ARL Average Running Length ARLB Automatic Recovery from Low Battery ARLB Automatic Return from Low Battery ARLCN AMA Remote Logical Channel Number ARLL Advanced Run-Length-Limited (magnetic recording code) ARM Advanced RISC Machines ARM Annotated C++ Reference Manual ARM Applications Reference Model ARM Architecture Reference Manual ARM Asynchronous Response Mode ARM Availability, Reliability, Maintainability ARMA Automatic Recall Maximum Allowed ARMAP Adaptive Reservation Multiple Access Protocol ARMIS Automated Reporting of Mechanized Information Systems ARMIS Automatic Recording Management Information System ARN Additional Redirection Number ARN Advanced Remote Node ARN Alternate Route Number ARN Authentication Random Number ARO Alternate Route on Overflow ARO Audio Receive Only ARP Address Resolution Protocol (TCP/IP-DoD) ARP Autonomous Reuse Partitioning ARPA Advanced Research Projects Agency ARPAnet Advanced Research Projects Agency Network ARPL Adjust RPL Field (80x86 inst) ARPOSE Specification de l'ARchitecture et des Protocoles OSI permettant de rendre le services ARQ Admission Request ARQ Automatic Repeat Request ARQ Automatic Request for Repeat ARQ Automatic Request for Retransmission ARQ Automatic Retransmission Request arr Action Request Report ARR Attributes for Representing Relationship ARR Automatic Rerouting ARRC Advanced Radiodata Research Centre ARRE Alarm Receiving and Reporting Equipment ARRL American Radio Relay League ARS Action Request System ARS Action Response System ARS Active Root Service ARS Alarm Reporting System ARS Ameritech Reconfiguration Service ARS Automatic Route Selection ARS Automatic Route Selector ARSB Automated Repair Service Bureau ARS-D Automatic Route Selection-Deluxe ARSP Automatic Route Selection Pattern ARSQ Automatic Route Selection Queuing ART Alternative Routing To ART Amplitude Radio Transmission ART Audible Ringing Tone ART Audit Report Task ART Automated Reasoning Tool ART Automatic Recall Toggle ART Automatic Reporting Telephone ARTA Apple Real Time Architecture ARTEARTE Alpha Run Time Environment ARTEMIS Advanced Research and Technology Mission ARTHUR Automatic Radiocommunication system for Traffic emergency situations on Highways ARTIC A Real-Time Interface Coprocessor ARTO Automatic Recall Time Out ARTOB Amateur Radio Transponder On Balloon ARTS AIN Response Translation Simplification ARTS American Radio Telephone System ARTS ARSnet Router Traffic Statistics ARTYPE Automatic Recall Reactivation Type ARU Alarm Relay Unit ARU Analog Radio Unit ARU Application Resource Unit ARU Audio Response Unit ARU Automated Response Unit arv Action Request View ARW Automatic Roaming Wide AS Abstract Service AS Access Signaling AS Access Switch AS Access System AS Active Service AS Activity Start AS Address Signal AS Address Strobe AS Administrative System AS Affects AS Alignment Signal AS Analog Signal As Anschluss (Access Unit/Extension) AS Answer Supervision AS Application Selection AS Application Supervisor AS Application System (IBM) AS Area Selection (TETRA) AS Assisted Service AS Association Specification AS Authentication Server AS Autonomous System AS ISO country code for American Samoa AS Start of Answer AS/400 Application System/400 AS/LIDB LIDB Administrative System AS/SYS Access and Storage System AS/U Advanced Server for UNIX ASA Addressable Service Area ASA Adjunct Software Architecture ASA Advanced SCSI Architecture ASA American Standard Association (ANSI today) ASA II Advanced SCSI Architecture II A-SAE ASE Service Alteration Element ASAI Adjunct/Switch Application Interface ASAP Accelerated Speech Application Programming ASAP As Soon As Possible ASAP Automated Software Change Approval Passport ASAP Automatic Self-Allocating Processor (Convex Inc. Super Comp.) ASAP Automatic Service Activation Program ASB Automatic Speed Buffering ASBH Average Season Busy Hour ASBHCA Average Season Busy Hour Call Attempts ASBHCC Average Season Busy Hour Call Completions ASBR Autonomous System Boundary Router ASC Abnormal Station Code ASC Accredited Standard(s) Committee ASC Active Service Component ASC Active Signal Correction ASC Advanced Scientific Computer ASC AIN Switch Capabilities ASC American Satellite Corporation ASC Any Switch Company ASC Application Service Centres ASC Authorized Support Center ASC Automatic Sensitivity Control ASC Automatic Sequence Control ASC Available Spare Capacity ASC X3 Information Technology of Information Technology Industry Council (ITI) (formerly CBEMA) ASCC Advanced Software Construction Center ASCI Advanced Speech Call Items ASCII American Standard Code for Information Interchange ASCOT Assessment of Systems and Components for Optical Telecommunications ASCR Asymmetric Silicon Controlled Rectifier ASCS Alarm Sending and Checking System ASD Answer Signal Delay ASD Answer Supervision Delay ASD AutoSave Document File ASDA Advanced Silence Detection Algorithm ASDE Airport Surface Detection Equipment ASDP Alternative Software Delivery Program ASDS ACCUNET Spectrum of Digital Services ASDS ACCUNET Switched Digital Service ASE Active Service Element ASE Amplified Spontaneous Emission ASE Application Service Element ASE ATM Switching Element ASEAN Association of South East Asian Nations ASEANIS ASEAN Indonesia-Singapore submarine cable ASEANPS ASEAN Philippines-Singapore submarine cable ASEM Air System Element Manager ASEQ Allocation Sequence Number ASEQ Ascending Sequence ASET Adaptive Sub-band Excitation Transform ASF Active Streaming Format ASF Administrative Storage Facility (NAA-DSA-Bull) ASF Application Support Function ASF Aspect Source Flag ASF Association Framework ASF Automatic Sheet Feeder ASFB Application Specific Functional Block ASG Abstract Service Group ASG Applications Support Group ASG Ascend Signaling Gateway ASHE A Simple HTML Editor ASHRAE American Society of Heating, Refrigerating, and Air-Conditioning Engineers ASI Alternate Space Inversion ASI Ameritech Services, Inc. ASI Application Software Interface ASIC Application-Specific Integrated Circuit ASIM Application Specific Integrated Module ASIM Asynchronous/Synchronous Interface Module ASIP Ameritech Service Improvement Program ASIS Application-Specific Integrated Sensor ASK Accessing Software Knowledge ASK Amplitude Shift Keying asl above sea-level ASL Adaptive Speed Leveling ASL Agent Status Lamp ASL Analog Subscriber Line ASL Arithmetic Shift Left ASLIP Abbreviated Serial Line Internet Protocol ASLM Apple Shared Library Manager ASLT Advanced Solid Logic Technology ASM Abstract Service Module ASM Abstract Syntax Machine ASM Address Space Manager ASM Analog Station Module ASM Assembler ASM Assembly Language ASM Assembly Language File ASM Association Mode ASM ATM Service Multiplexer ASM ATM Switched Services Module ASM ATM Switching Module ASMA Asynchronous Serial Manchestercode Adapter ASMC Advanced Semiconductor Manufacturing Company ASMDR Advanced Station Message Detail Recording ASME American Society of Mechanical Engineers ASMM ATM Service Management Module ASMP Asymmetric Multiprocessing ASMS Advanced Service Management System ASMS Advanced Strategic Missile System ASN Abstract Syntax Notation ASN Access Stack Node ASN Actual Slot Number ASN Alcatel Submarine Networks ASN ATM Service Node ASN ATM Switching Network ASN Authentication Sequence Number ASN.1 Abstract Syntax Notation n° 1 (ITU/ISO) ASN-1 Abstract Syntax Notation One A-SNE ASE Service Notification Element ASO Application Service Object ASO Automatic Service Observing ASOG Access Service Order Guidelines ASOS Advanced Services Operations System ASP Abstract Service Primitive ASP Access Service Provider ASP Access Signal Processor ASP Active Server Page ASP Advanced Services Platform ASP Agent Service Participant ASP Alternate Service Provider ASP Application Service Part ASP Application Signalling Processor ASP Application Software Package ASP Application Specific Parameter ASP Asia-South Pacific ASP Assignment Source Point ASP Association of Service Providers ASP Association of Shareware Professionals ASP Auxiliary Service Position ASPA AMA Specialized Processing Application ASPEC Audio Spectrum Coding ASPI Advanced SCSI Programming Interface ASPI Advanced SCSI Protocol Interface ASPI Atlanta Signal Processors, Inc. ASPR Automated Split-Referral ASPS Accounting Statistical Processing System ASPS Accounting Statistics Processing System ASPS Advanced Space Processor Subsystem ASQ Active Service Queue ASQ Automated Status Query ASQC American Society for Quality Control ASR Abstract Test Suite Selection Rules ASR Access Service Request ASR Adaptive Sample Rate ASR Address Space Register ASR Alarm State Request ASR Always-Start-from-Root ASR Answer/Seizure Ratio ASR Answer-to-Seizure Ratio ASR Arithmetic Shift Right ASR Automatic Send/Receive (TTY) ASR Automatic Set Relocation ASR Automatic Speech Recognition ASR Automatic Standard Recognition (television) ASRAM Application-Specific Random Access Memory ASSET Advanced Switchable Signaling and Echo-Canceler Terminal ASSI Alias Short Subscriber Identity (TETRA) AST Abstract Syntax Tree AST Activity Switch Timer AST Advanced Screen Telephony AST Advanced Screen-based Telephony AST Advanced Systems & Technology AST Alaska Standard Time AST Anti-Sidetone AST Asynchronous Service Trap AST Asynchronous System Trap AST Atlantic Standard Time AST Automatic System Testing AST/SYS Access, Storage, and Transfer System ASTA Areas of Service State ASTAP Advanced STatistical Analysis Program ASTI At Some TIme ASTM American Society for Testing and Materials ASTP Advanced Systems and Technology Programme ASTRA Automated Service and Trouble Report Analysis ASTTL Advanced Schottky Transistor-Transistor Logic ASU Acknowledgement Signal Unit ASU Application Specific Unit ASU ATM Service Unit ASVD Analog Simultaneous Voice and Data ASW All Seems Well ASX ATM Switch Module ASYNC Asynchronous AT Abstract Terminal AT Access Tandem AT Access Terminal AT Access Termination AT Advanced Technology AT Alternate Time AT Answer Timing AT Attention AT Attenuation AT Austria Telecom AT Austria Telecommunication AT Automated Testing at Internet country code for Austria AT ISO country code for Republic of Austria AT&T American Telephone and Telegraph AT&T American Telephone and Telegraph Company AT/SSP Access Tandem/Service Switching Point AT/SYS Access and Transfer System ATA Adaptive Transform Audio coding ATA Address Translation Agent ATA Analog Terminal Adapter ATA Analogue Terminals and Access ATA AT Attachment Interface ATA Automatic Trouble Analysis ATA-2 AT Attachment Interface-Second Edition ATAC Adaptive Transformation Audio Coding ATACS Automated Test and Administration Control System ATAF ATM Test Access Function ATAPI AT Attachment Packet Interface ATB Address Translation Buffer ATB All Trunks Busy ATBA Automatic Test Break and Access ATBS Attendant Busy Treatment ATC Abstract Test Case ATC Access Tandem to Carrier ATC Access To Carrier ATC Adaptive Transform Coding ATC Address Translation Cache ATC Advanced Technology Center ATC Air Traffic Control ATC ATM Layer Transfer Capability ATC Auto Tune Combiner ATC Automated Test Case ATC Automatic Threshold Control ATC Automatic Time and Charges ATC Automatic Timing Control ATCC Advanced Test Control Center ATC-HS Adaptive Transform Coding Harmonic Scaling ATCP Ameritec Traffic Control Program ATCP AppleTalk Control Protocol ATCP CI ATCP Command Interpreter ATCRBS Air Traffic Control Radar Beacon System ATD Access Tandem Domestic ATD Asynchronous Time Division ATD Asynchronous Time Division (multiplex) ATD ATM Traffic Descriptor ATD Audio Tone Detection ATD Audio Tone Detector ATDB Active Terminal Data Block ATDE Adaptive Time Domain Equalization ATDE Adaptive Time Domain Equalizer ATDM Asynchronous Time Division Multiplex ATDM Asynchronous Time Division Multiplexing ATDM Asynchronous Time-Division Multiplexed ATDMA Advanced TDMA Mobile Access ATDN Advanced Technology Demonstration Network ATDNet Advanced Technology Demonstration Network ATDT Terminal Attach/Detach ATE ATM Terminating Equipment ATE Automated Test Environment ATE Automated Test Equipment ATE Automatic Telephone Exchange ATE Automatic Test Equipment ATeam Architecture Team ATEC Authorized Technical Education Center ATEL Advanced Television Evaluation Laboratory ATF Advanced Tactical Fighter (United States Air Force) ATF Analog Transmitter Filter ATG Air-to-Ground ATG Applied Technology Group ATG Automatic Test Generator ATHB Active Terminal Header Block ATI Access Tandem International ATI Alarm Trouble Indicator ATIM Ad Hoc TIM ATIS Alliance for Telecommunications Industry Solutions ATIS Automatic Terminal Information Service ATK Andrew Toolkit ATL ActiveX Template Library ATL Advanced Technology Laboratory ATL Atlanta ATLAS Abbreviated Test Language for All Systems ATLAS Abbreviated Test Language for Avionics Systems ATLS Automatic Test Load Simulator ATM Abstract Test Method ATM Adobe Type Manager ATM Advanced Testing Methods (former ETSI TC, now MTS) ATM Alternative Test Method ATM Asynchronous Time Multiplexing ATM Asynchronous Transfer Mode ATM ATM Sublayer ATM Austrian Trunk Module ATM Automatic Teller Machine (Bancomat) ATM Autovon Trunk Module ATM25 25 Mbps ATM Physical Layer ATMARP Asynchronous Transfer Mode Address Resolution Protocol ATM-ARP ATM Address Resolution Protocol ATME Automatic Transmission Measuring Equipment ATMF ATM Forum ATM-F ATM Forum ATML Advanced Telecommunications Modules Ltd. ATMM ATM Management ATM-NM ATM Network Management ATMOS ATM Optical Switching ATMP Ascend Tunnel Management Protocol ATMR Asynchronous Transfer Mode Ring ATMR ATM Ring ATMS Advanced Text Management System ATMS Automatic Transmission Measurement System ATMS Automatic Transmission Measuring System ATN Attendant ATN ATtentioN (IEEE-488 bus signal) ATO Advanced Technology Offering ATO MDII: Address Complete Timeout ATOC Automated TUSA Operator Console A-TO-D Analogue-to Digital ATOM Announcements, Tones, and Occurrences Team ATOMICS Advanced Traffic Observation and Management Information Collecting System ATP Acceptance Test Plan ATP Acceptance Test Procedure ATP Access Transport Parameter ATP Advanced Technology Program ATP Advanced Telecommunications Program (of LLNL) ATP Advanced Token Parser ATP Alarm Termination Paddle card ATP All Tests Passed ATP Automated Trunk Provisioning ATP Automatic Test Processor ATPC Adaptive Transmit Power Control ATPC Alarm Termination Paddle Card ATPC Automatic Transmit Power Control ATPG Automatic Test Pattern Generation ATPG Automatic Test Pattern Generator ATR Advanced Telecommunications Research Institute ATR Alcatel Telecommunications Review ATR Answer to Reset ATR Answering Time Recorder ATR Anti-Transmit-Receive tube ATR Audio Tape-Recorder ATR Automatic Tape Reader ATR Automatic Transmitter ATR Automatic Trunk Routining ATRC Advanced Television Research Consortium ATRC Alternate Terminating Restriction Code ATRS Automatic Trouble Reporting System ATS Abstract Test Suite(s) ATS Activity Tracking System ATS Administrative Terminal System ATS Advanced Telecom Services ATS Air Traffic Services ATS Alternate Through Stream ATS Applications Technology Satellite ATS Asynchronous Time Sharing ATS Automatic Test System ATSC Advanced Television Systems Commission ATSC Advanced Television Systems Committee ATSC Australian Telecommunication Standardization Authority ATSC Australian Telecommunications Standardization Committee ATSI Alias TETRA Subscriber Identity ATSI American Telecommunications Standards Institute ATSS Americas Telecommunications Standards Symposium ATT Active Transaction Table ATT Advanced Traffic Telematics ATT American Telephone and Telegraph Company ATT AT&T Technology (periodical) ATT Attach ATT Attendant ATT Attended Public Telephone ATT ATTenuator ATT Automatic Toll Ticketing ATT Automatic Trunk Testing ATT (flag) ATTach ATTC Advanced Television Test Center ATTC Automatic Transmission Test and Control ATTCOM AT&T Communications ATTD Avalanche Transit Time Diode ATTF Automatic Toll Ticket Facilities ATTH ATM-To-The-Home ATTI AT&T International ATTIND Attendant Access Code ATTIS AT&T Information Systems ATTIX AT&T Interexchange Carrier ATTJ AT&T Technical Journal ATTN Attention ATTN ATTenuatioN ATTR Attributes ATTRCLF Attendant Recall After Flash ATTT AT&T Technologies ATTT AT&T Technology (periodical) ATTY Administrative TTY ATU ADSL Terminal Unit ATU ADSL Transmission Unit ATU Analog Test Unit ATU Antenna Tuning Unit ATU-C ADSL Terminal Unit- Central Office ATUG Australia Telecommunications User Group ATUP Australian Telephone User Part ATUR Automatic Telephone Using Radio ATU-R ADSL Terminal Unit- Remote ATURS Automatic Traffic Usage Recording System ATV Advanced Television ATV Amateur TeleVision ATV Automated Test Vehicle ATVA American Television Alliance ATX Audiotext ATX Automatic Telex Exchange AU Access Unit AU Adaptation Unit AU Administrative Unit AU Alternate Use AU Answer Unit AU Application Unit AU Arithmetic Unit AU Autonomous au Internet country code for Australia AU ISO country code for Commonwealth of Australia AU-3 Administrative Unit-Level 3 AU-4 Administrative Unit-Level 4 AUAP Accelerated Unified Approval Procedure (ETSI) AUC Authentication Center AuC Authentication Centre AUCD Authorization Code Digits AUD AUDible AUD Audit AUD Automatic Dial AuDID Audit Data Identifier Audix Audio Information Exchange System AUDR Audible Ring AUDT Audit AUG Administrative Unit Group AUI Administration User Interface AUI ASE/USA Interface AUI Attachment Unit Interface AUI Attachment Unit Interface (IEEE 802.3) AUIS Andrew User Interface System AUL Automatic Line AUMA Autonomous-and-Management AU-n Administrative Unit-Level n AUP Acceptable Use Policy AUP Administrative Utility Programs (NAA-DSA-Bull) AUP Appropriate Use Policy AUPI Administrative Utility Programmatics Interface (NAA-DSA-Bull) AURP AppleTalk Update Routing Protocol AURST Autonomous-and-Restricted AUSPAC Australian Packet Switching Network AUSTEL Australian Telecommunications Authority AUSTEL AUStralian TELecommunications industry AUT Access Upsizing Tools AUT Authentication AUT Authorised AUT AUThority AUT(H) AUThentication AUTC Authentication AUTEL Asociación de Usuarios de TELecomunicaciones (E) AUTH Authentication AUTH Authorization and Account Codes AUTH Authorization Codes AUTH_KEY AUTHentication function identifier AUTH_NO AUTHentication function to be used AUTH_PREF PREFerred CPP AUTHentication function AUTH_REQ AUTHentication REQuest Information Element AUTH_RES AUTHentication RESponse Information Element AUTH2_REQ Alternative AUTHentication REQuest Information Element AUTH2_RES Alternative AUTHentication RESponse Information Element AUTHAMA Authorization Code AMA AUTO Automatic AUTODIN Automatic Digital Network AUTODISP Automatic Display AUTOVON Automatic Voice Network AUTZ Authorization Code AUU ATM User-to-ATM User Indication AUU ATM-User-to-ATM-User information AUUSIX Acceptance of User-to-User Signaling from an Interexchange Carrier AUVAL Authorization Code Validation AUX AUXiliary AUXP AUXiliary Pattern AV Anti-Virus AV Application Version AV Association Validator AV ATM-VME Adaptor AV Audio/Visual AV AudioVision AV Audiovisual AV Authenticity Verification AV Autovon AV Available AV1 ATM-VME Adaptor, Type 1 AVA Attribute Value Assertion AVC Audio for Video-Conferencing AVC AudioVisual Connection AVC Automatic Volume Control AVCS Advanced Vidicon Camera System AVD Alternate Voice/Data AVD Alternating Voice and Data AVD Audio/Video Driver AVDP Advanced Video Display Processor AVDS Advanced Voice Design System AVDU Audiovisual Display Unit AVEC Auxiliary Video Extension Connector AVG Average AVI Audio Video Interleave (multimedia format) AVI AudioVisual Information AVI Automatic Vehicle Identification AVIOS American Voice Input & Output Society AVIS Audio-Visual Interactive Service AVJ Adaptive Virtual Junctor AVK Audio-Video Kernel AVL Adelson-Velskii and Landis AVL Application Version List AVL Audio/Video Library AVL Available AVLSI Advanced Very Large Scale Integration AVM Audio Visual Management AVMMS Audio Visual Multimedia Services AVMMS AudioVisual/MultiMedia Services (TSAG:ITU-TS) AVO Audiovisual Object AVON AUTOVON AVP Advanced VLSI Packaging AVP Assistant Vice-President AVP Attribute Value Pair AVP Automation Verification Prime AVP AUTOVON Precedence Level AVPN ATM Virtual Private Network AVPS Audio Visual Protocol Stack AVR Audio Visual Research AVR Automatic Voltage Regulation AVR Automatic Voltage Regulator AVR Automatic Volume Recognition AVS Advanced Voice Services AVS Application View Set AVS Application Visualization System AVS Audio and Visual Services AVS Audio/Video Server AVSS Audio/Video Support System AVSS Audiovisual Subsystem AVSSCS Audio-Visual Service Specific Convergence Sublayer aVSt aufnehmende Vermittlungsstelle (Take-up exchange for foreign connection) AVT AUTOVON Termination AVX ATM-VME Adaptor AVx ATM-VME Adaptor, Type x AW Addison-Wesley AW Administrative Weight AW ISO country code for Aruba AWA A W & Associates AWACS Airborn Warning And Control System (military avionics) AWALA Advanced Wireless Architectures and Lead Applications AWC Area-Wide Centrex AWCDM Adaptively Weighted Code Division Multiplexing AWG American Wire Gauge (system for specification of wire diameter) AWG Arrayed Waveguide Grating AWGN Additive White Gaussian Noise a-wire A-wire of the two wire PSTN line awk Aho, Weinberger, and Kernighan AWL Addison-Wesley Longman AWRAP Automated WRAP AXM ATM Multiplex Module AXM ATM Multiplexing Module AXS Application Transfer Service AXU Alarm Cross-Connect Unit AXU Auxiliary Cross-Connect Unit AYT Are You There? AZ AZimuth AZ ISO country code for Azerbaijan AZ U.S. postal code for Arizona AZC All-Zeroes Code AZ-EL AZimuth-Elevation
B Bearer B Bearer channel B Bidirectional (frame) B Billion B Binary B Blue B Bold (HTML tag) b BOOL (int) B Bridge (link) B Bug b b-wire of the two wire PSTN line B Byte B Interpolative (Between) B channel Traffic channel (64 kbit/s; 32 kbit/s in CT2) B&C Billing and Collections B&W Black and White B/G Battery and Ground b/s Bits per Second B/W Black/White B/W Bothway b1 b-wire connection at the TE input line b2 b-wire connection at the output port of a series-connected TE B3ZS Bipolar with 3 Zeros Substitution B6ZS Bipolar with 6 Zeros Substitution B8RZ Bipolar violations every 8th pulse, Return to Zero B8ZS Bipolar with 8 Zeros Substitution B911 Basic 911 Emergency Service BA Asynchronous Balanced Mode BA Basic Access BA Basic Algorithm BA BCCH Allocation BA Bell Atlantic BA Bridger Amplifier BA Broadcast Control CHannel Allocation BA Buffer Allocation BA Bus Arbitration BA Bus Available BA ISO country code for Bosnia and Herzegovina BaAs Basisanschluss (Basic Access) BAB Basic Automation Board BABS Blind Approach Beacon System BABT British Approval Board for Telecommunications BAC Balanced Asynchronous Class (HDLC) BAC Billing and Collection BAC Block-Acknowledged Counter BAC Buffer Address Counter BAC Bus Access Circuit BAC Bus Access Controller BACN Bank ACount Number BACP Bandwidth Allocation Control Protocol BACT Advisory Committee on Telecommunications of Small Businesses (UK) BAD BRI Agent Decoupling BAF Bellcore AMA Format BAF Broadband Access Facilities BAG Circuit Group Blocking Acknowledge message BAGNET Bay Area Gigabit Network BAGS BASS, GSBT, GETAR, Setup BAHAMA Broadband Adaptive Homing Asynchronous Transfer Mode Architecture BAI Border Area Indicator BAIC Barring of All Incoming Calls BAIC Barring of All Incoming Calls (supplementary service) BAK Backup File BAKT Basisanschlusskonzentrator (Basic Access Concentrator) BAL Balance BAL BAtch Length BAL Bearer Channel Allocate BALI Burst Admission Based on Load and Interference BALUN Balanced/Unbalanced BAM Basic Access Method BAM Basic Access Module BAM Bell Atlantic Mobile BAM Block Allocating Map BAMA Beacon-Assisted Multiple Access BAMM Bidirectional Asymmetric Multipoint-to-Multipoint BAN Billing Account Number BAN Boundary Access Node BANCMOS Bipolar Analog CMOS BANCS Bell Administrative Network Communications System BAND OUTWATS Band Numbers BANDIC BAND Interexchange Carrier BANI Bell Atlantic Network Integration BAOC Barring of All Outgoing Calls BAOC Barring of All Outgoing Calls (supplementary service) BAP Bandwidth Allocation Protocol BAP Basic Assembler Program BAP Business Affiliate Program BAPI Barcelona-Pisa Italy submarine cable BAPM Bidirectional Asymmetric Point-to-Multipoint BAPT Bundesamt für Post und Telekommunikation (D) BAPTA Bearing And Power Transfer Assembly BAR Basic Algorithm with Reassignment BARGEN Barcelona-Genoa submarine cable BARO Barcelona-Rome submarine cable BARRIT BARRier Injection and Transit time diode BARS Basic Automatic Route Selection BAS Base Layer BAS BASic BAS Basic Activity Subset (OSI-SL) BAS BASIC File BAS Bearer Channel Associate BAS Bit Allocation Signal BAS Bit Rate Allocation Signal BAS Broadband Access Server BAs Buendelanschluss (Trunk Group/Wire Group) BASAR Building Agents Supporting Adaptive Retrieval BASE Base Layer BASE Basic ASE BASE Broadband ATM/STM Electrical dual bus BASET BASE Type bash Bourne Again Shell BASIC Beginner's All Purpose Symbolic Instruction Code BAsize Buffer Allocation Size BASM Built-in Assembler BASN Block-Acknowledged Sequence Number BASS Basic Session Service BAT Bandwidth Allocation Threshold BAT Batch File BAT Battery BAT Bearer Channel Attribute BAT Bell Atlantic BAT Billing Architecture Team BAT Block Address Translation BAT BRI Architecture Team BATC Block Address Translation Cache BATE Baseband Adaptive Transversal Equalizer BATMOS Bipolar Analog Telecommunications Metal Oxide Semiconductor BATMOS Bipolar Analog Telephony CMOS BATS Bit Access Test System BB BaseBand BB Bluebook BB Bluebox BB Broadband BB ISO country code for Barbados BBA Broadband Access BBC Bearer Channel Break Connection BBC Bjarne's Better C BBC British Broadcasting Corporation (UK) BBC Broadband Bearer Capability BBC Broadband Coupler BBC Broadcast Bearer Control B-BC Broadband Bearer Capability B-BCC Broadband Bearer Channel Connection BBD Bucket-Brigade Device BB-DACS Broadband DACS BBER Background Block Error Ratio BBF Blue Box Fraud BBG Basic Business Group BBG Basic Business Group Identifier BBG Basic Business Group Number BBGDN BBG Intercom Number BBGDP Basic Business Group Dialing Plan BBG-I ISDN Basic Business Group BBGNAME Basic Business Group Name BBGSG Basic Business Group, Subgroup BBGXLAR BBG Digit Collection, Translations, and Routing BBH Bouncing Busy Hour BBI Begin Bracket Indicator (SNA) BBIU Beginning of BIU BBL Backbone Leg BBM Bandwidth Balancing Mechanism BBN Bolt, Beranek, and Newman BBONI Broadband Optical Network Interface BBP Binary Backoff Procedure (CSMA/CD) BBS Bulletin Board Service BBS Bulletin Board System (mailbox) BBSM Basic Bearer State Machine BBT Board to Board Testing BBT BroadBand Technologies BBTG Broadband Task Group BBU Baseband Unit B-BUS Broadcasting Broadcast/Unknown Server BC Backward Congestion Indicator BC Bar Code BC Basic Call BC Basic Control BC Basic Control BC Batch Counter BC Bearer Capabilities BC Bearer Capability BC Bearer Channel BC Bearer Control BC Bearer Controller BC Bell Canada BC Billing Collector BC Binary Checksum BC Bon de Commande BC Broadcast BC Buffer Control (multimedia) BC Bus Controller Bc Committed Burst Size BC Postal code for British Columbia BC++ Borland C++ BC4 Borland C++ 4.0 BC4.5 Borland C++ 4.5 BC5 Borland C++ 5.0 BC5.0 Borland C++ 5.0 BCA Basic Coverage Area BCA B-Channel Availability BCAF Bearer Control Agent Function BCAJ Borland C++ Add-on for Java BCAL Basic Coin Access Line BCAP Basic EKTS Call Appearance BCap Bearer Capability BCB Borland C++ Builder BCC Base Station Color Code BCC Base transceiver station (BTS) Colour Code BCC Battery Charge Controller BCC Bearer Channel Connection BCC Bearer Connection Component BCC Bearer Connection Control BCC Bellcore Client Company BCC Bit Character Count bcc Blind Carbon Copy BCC Block Check Character BCC Block Check Code BCC Block-Completed Counter BCC Blocked Calls Cleared BCCD Bulk-Channel Charge-Coupled Device BCCH Broadcast Channel BCCH Broadcast Control Channel BCCIS Bell Canada Circuit Inventory System BCCMS BUNI Command and Control Message Set BCCSS Business Customer Communications Switching Study BCD Binary Coded Decimal BCD Binary Coded Digits BCD Blocked Calls Delayed BCD Booked Call Database BCD/B Binary Coded Decimal/Binary BCD/Q Binary Coded Decimal/Quaternary BCDC Bellcore Corporate Data Contract BCDIC Binary Coded Decimal Interchange Code BCDMA Broadband CDMA BCE Base Station Control Equipment BCE Bell Canada Enterprises BCE Bridged Call Exclusion BCEA Bridged Call Exclusion Activate BCEAM Bridged Call Exclusion for Analog Member of EKTS BCED Bridged Call Exclusion Deactivate BCET Bridged Call Exclusion Toggle BCETYPE Bridged Call Exclusion Type BCF Bandwidth Change Confirmation BCF Bandwidth Confirm BCF Base Station Control Function BCF Bearer Control Function BCF Bridge Control Facility BCF Burst Control Function BCFr Bearer Control Function (Radio) BCG Bell Communications Group BCGD Business Communication Group Digits BCH B-Channel BCH Bearer Channel BCH Bids per Circuit per Hour BCH Binary Coded Hexadecimal BCH Bose-Chaudhuri-Hocquenghem BCH Broadcast Channel BCi Backward Call Indicator BCI Backward Call Indicators BCI Backward Congestion Indication BCI Bearer Control Identifier BCI Begin Chain Indicator (SNA) BCI Bell Canada International BCI Bit Count Integrity BCI BroadCast Interference BCID Bearer Channel Identifier BCIE Bearer Capability Information Element BCK BloCK BCL Base Class Library BCL Base ConLan BCL BroadCast Listener BCLID Bulk Calling Line Identification BCLP Buffer of Copies of Local Packets BCM Basic Call Manager BCM Basic Call Model BCM B-Channel Manager BCM Bearer Channel Manager BCM Bell Cablemedia BCM Benchmark Cost Model BCM Binary Coded Matrix BCM Bit-Compression Multiplexer BCM Buried Coarctate Mesastructure BCMRA B-Channel Common Maintainable Resource Aggregate BCMS Bearer Channel Manager Surrogate BCN Backbone Concentrator Node BCN Beacon BCNI Bearer Capability Not Implemented BCNSP Basic Call Network Service Participant BCNU Be seeing you BCO Battery Cut-Off BCO B-Channel Observer BCO Borrow with Channel Ordering BCOB Broadband Connection Oriented Bearer BCOEDN Bearer Capabilities Per OE/DN BCOR BCO with Reassignment BCOS Business Class of Service BCP Basic Call Participant BCP Basic Call Process BCP Basic Call Processing BCP Best Current Practices BCP Billable Calls Per Hour BCP Binary Communications Protocol BCP Binary Control Protocol (BSC) BCPL Basic Computer Programming Language BCPM Barker Code Position Modulation BCPN Business Customer Premises Network BCR Bearer Channel Rate BCR Bearer Channel Resource BCR Bell Communications Research BCR Block Coding Rate BCR Branch Condition Register BCR Business Communications Review (periodical) BCR Byte Count Register BCR Community Bureau of Reference BCRIS Bell Customer Records Information System BCS Basic Coding Structure BCS Basic Combined Subset (OSI-SL) BCS Batch Change Supplement BCS B-Channel Circuit-Switched BCS Bearer Channel Server BCS Bearer Channel Surrogate BCS Block Check Sequence BCS Block Control Signal BCS Boundary Control Stabilization BCS Branch if Carry Set BCS British Computer Society BCS Bulk Change Software BCS Bulk Change Supplement BCS Bus Control System BCS Business Communication System BCS Business Communications Services BCS-1 Binary Compatibility Specification-1 BCSC Business Customer Service Center BCSM Basic Call State Machine BCSM Basic Call State Model BCSMON BCS Monitor BCSN Block-Completed Sequence Number BCST Broadcast BCT Business Communications Terminal BCT Business Cordless Telecommunications system BCT Business Cordless Telephone B-CTI Broadband Computer-Telephony Integration BCTP Buffer of Copies of Transit Packets BCTS Broadcasting and Communications Technology Satellite BCU Battery Control Unit BCUG Bilateral Closed User Group BCUGO Bilateral Closed User Group with Outgoing access BCUP Basic Call-Unrelated Process BCUSP Basic Call User Service Participant BCV Basic Call View BCVT BasiC Virtual Terminal (OSI-SASE) BCW Borland C++ for Windows Bd Baud BD BoarD BD Broadband Descrambling BD Buffer Descriptor BD ISO country code for People's Republic of Bangladesh BDAM Basic Direct-Access Method BDC Backup Domain Controller BdC Bon de Commande BDC Borland Developers Conference BDCL Borrowing with Directional Channel Locking B-DCN Backbone Data Communication Network B-DCS Broadband Digital Cross-Connect System BDE Baseband Distribution Equipment BDE Borland Database Engine BDF Baseband Distribution Frame BDF Binary Distribution Format BDF Bitmap Distribution Format BDG BNR Design Group BDH Board Day Hour BDK Beans Development Kit BDLC Burroughs Data Link Control protocol (Burroughs Inc.) BDM Background Debug Mode BDM Background Debug Monitor BDM Bit Demodulator BDN Bell Data Network BDOS Basic Disk-Operated System BDPSK Binary Differential Phase-Shift Keying BDR Bell Doesn't Ring BDR Border Format File BDRA Boot Data Reserved Area BDS Basic Data Service BDS Billing Data Set BDS Broadband Distribution Shelf BDSL Bisymmetric Digital Subscriber Line BDSL Bisymmetrical Digital Subscriber Line BDT Basic Method with Double Transmission BDT Billing Data Tape BDT Billing Data Template BDT Billing Data Transmitter BDT Billing Design Team BDT Bulk Data Transfer BDT Bureau for Telecommunication Development BDT Telecommunication Development Bureau BDTS Bulk Data Transfer Subsystem BDU Baseband Distribution Unit BDV Breakdown Voltage BDW Block Descriptor Word BDW Buried Distribution Wire BE Band Elimination BE Begin-End Tag BE Beschaltungseinheit (Line Unit) (Connection Unit) BE Best Effort BE Big-Endian BE Block Error BE Business Environment Be Excess Burst Size be Internet country code for Belgium BE ISO country code for Kingdom of Belgium BEA Analoge Beschaltungseinheit (Analog Line Unit) BEA Beschaltungseinheit fur Analogen Anschluss (analogue connection unit) BEAMA Federation of British Electrotechnical and Allied MAnufacturers BEC Basic Error Control BEC Basic Error Correction BEC Belgisch Elektrotechnish Comite (B) BEC British Electrotechnical Committee BECM Band-Edge Component Maximization BECN Backward Explicit Congestion Notification BED Beschaltungseinheit fur Digitalen Anschluss (digital connection unit) BED Digitale Beschaltungseinheit (Digital Line Unit) BEDC Block Error Detection Code BEDO Burst Extended Data Out BEE Bachelor of Electrical Engineering BEE Bit Encoding Errors BEF Band Elimination Filter BEF Band Elimination Filter BEG BEGinning BEITA Business Equipment and Information Technology Association (UK) BEL Bell BEL BELl BEL Business Environment Element BELLCORE Bell Communications Research Bellcore Bell Communications Research BEO Bramalea Engineering Office BEOFD Broadband End of Frame Delimiter BEP Back End Processor BEP Building Entry Protector BEP Burst Error Processor BEPI Block Effective Page Index BEQL BITE Entity Query Language BER Basic Encoding Rules BER Basic Encoding Rules BER Bit Error Rate BER Bit Error Ratio BER Bus ERror BERLU Broadband-Enhanced Remote Line Unit BERP Bit Error Rate Performance BERR Bus Error BERT Bit Error Rate Test BERT Bit Error Rate Testing BERT Bit Error Ratio Test BERT Bit Error Ratio Testing BES Basic Encoding Scheme BeSS Bell Laboratories Storage System BEST Base Employee Satisfaction Team BET Black Entertainment Television BET Business Effectiveness Team BEtag Beginning-End Tag BETR Basic Exchange Telecommunications Radio BETRS Basic Exchange Telecommunications Radio Service BEV Bearer Channel Event BEX Broadband EXchange BEXR Basic Exchange Radio BF Best-Fit BF Boundary Function BF Branching Filter BF ISO country code for Burkina Faso BFA Borrow First Available BFC Base Flexible Calling BFC Briefcase file BFCV Binary Facility Coding Value BFD Basic File Directory BFD Battery Failure Detector BFI Bad Frame Indication BFI Basic File Index BFI Brute Force and Ignorance BFMA Block Failure Mode Analysis BFO Beat Frequency Oscillator BFP Basic Format Packet BFP Basic Format Packetization BFP Basic Freephone BFR Back-Face Removal (3-dimensional electronic imaging) BFR Bridged Frequency Ringing BFR BuFfeR BFS Backplane File System BFS Boot File System BFS Breadth-First Search BFSI Broadcast Fixed System Identity BFSK Binary Frequency Shift Keying BFSR Busy-Flash Seizure Ratio BFT Binary File Transfer BFT-NSF Binary-File Transfer- Non-Standard Facilities Frame BFTP Background File Transfer Program BFU Betriebsfuehrungsumsetzer (Operation Converter) BFU Bit-Field Unit BFU Booster Fan Unit BG BackGround BG Battery Ground BG Below Ground BG Billing Group BG Bus Grant BG Business Group BG ISO country code for People's Republic of Bulgaria BG/EEE Below Ground Electronic Equipment Enclosure BG2WAY Business Group 2-Way BGA Ball Grid Array BGAC Business Group Automatic Callback BGCW Business Group Call Waiting BGCWT Business Group Call Waiting BGDP Business Group Dialing Plan BGDP-I ISDN Business Group Dialing Plan BGE Business Group Element BGE-I ISDN Business Group Element BGI Borland Graphics Interface BGID Business Group Identification BGID Business Group Identifier BGIN Business Group Inward BGL Business Group Line BGMAOR Business Group Member Access Originating Restrictions BGMATR Business Group Member Access Terminating Restrictions BGOUT Business Group Outward BGP Border Gateway Protocol BGP4 Border Gateway Protocol 4 BGP-4 Border Gateway Protocol 4 BGTYPE Business Group Type BGU Basic Grid Unit BH Base Register High Half BH Buried Heterostructure (IC Process) BH Busy Hour BH ISO country code for State of Bahrain BHC Basic Half Call BHC Busy Hour Call BHCA Busy Hour Call Attempt(s) BHCC Busy Hour Call Completion BHCV Busy Hour Call Volume BHDT Broadband Host Digital Terminal BHE Bus High Enable BHL Busy Hour Load BHLF Basic High Layer Function(s) BHLI Broadband High Layer Information B-HLI Broadband High Layer Identifier B-HLI Broadband High Layer Information BHMI BaseHMI BHT Begin Hunt BHT Begin-Hunt Terminal BI all Barring of Incoming call services BI Backward Indicator BI Barge-In BI Barring of All Incoming Calls BI Behaviour Inopportune BI Bidirectional BI Bilingual Interface BI Billing Instructions BI Borland International BI Bus Interface BI ISO country code for Republic of Burundi BIAC Business and Industry Advisory Committee (OECD) BIB Backward Indicator Bit BIBR Backward Indicator Bit Received BIBT Backward Indicator Bit Transmitted BIBX Backward Indicator Bit Expected BIC Barring of Incoming Calls (TETRA) BIC Bearer Identification Code BIC BRISC Interrupt Controller BIC Bus Interface Card BIC Bus Interface Controller BICAP BInary CAPacitor BICI BISDN Inter-Carrier Interface BICI Broadband Inter-Carrier Interface B-ICI BISDN Inter-Carrier Interface B-ICI Broadband Inter-Carrier Interface B-ICI Broadband ISDN Inter-Carrier Interface BiCMOS Bipolar CMOS Bi-CMOS Bipolar Complementary Metal Oxide Semiconductor BI-CONF B-ISDN Conferencing BIC-Roam Barring of Incoming Calls when Roaming outside the HOME PLMN country (supplementary service) BICS Building Industry Consulting Service BICSF Berkeley/IRCAM/CARL Sound File BID Base IDentity code BIDDS Base Information Digital Distribution System BIDI Bidirectional Display BIDS Borland International Data Structures BIDS Broadband Integrated Distributed Star BIDS Broadband Interactive Data Services BIDTC B-Channel Incoming Default Throughput Class BIF Bus Interface BIFP Base Interface Front-end Processor BIGFET Bipolar Insulated Gate Field Effect Transistor BIH Bureau International de l'Heure BIIS Binary Interchange of Information and Signalling BILBO Built-In Logic Block Observation BILGE Binary Load Generation BILGE Binary Load Image BILL Billing BILLDATS Billing Data System BILLTYP Billing Types BIM Broadcast Information Memo BIM Byte-Interleaved Multiplexer BI-MCAST B-ISDN Multi-Casting BI-MCPP B-ISDN Multiple Connections Point to Point BIMOS Bipolar Metal Oxide Semiconductor Bi-MOS Bipolar Metal Oxide Semiconductor BIMPS B-Channel Incoming Maximum Packet Size BIN Barge-In BIN Bearer Channel Set Integrity BIN Binary bin Binary BIN Business Information Network BINAC BINary Automatic Computer BIND Berkeley Internet Name Domain bing Bandwidth ping BINR Basic Intrinsic Noise Ratio BIO Bit Input/Output BIOP Broadcast Interoperability Protocol BIOS Basic Input/Output Services BIOS Basic Input/Output System BIP Bit Interleaved Parity BIP Breaker Interface Panel BIP-N Bit Interleaved Parity N BIPT Belgium Institute for Posts and Telecommunications (B) BIPV Bit Interleaved Parity Violation BIR Bureau International de la Recuperation B-IR Bell-Independent Relations BIS Bearer Independant Service BIS Border Intermediate System BIS British Imperial measurement System BIS Brought Into Service BIS Bureau of Indian Standards BIS Business Information System BISAM Basic Indexed Sequential Access Method BISCOM Business Information Systems-Communications System BISCUS Business Information System/Customer Service BISDN Broadband ISDN B-ISDN Broadband ISDN BISI Busy/Idle Status Indicator B-ISSI Broadband Inter-Switching System Interface BIST Built-In Self Test BISTSS Business Information System/Trunks and Special Services BISUP Broadband ISDN User Part B-ISUP Broadband ISDN User Part BISYNC Binary Synchronous Communication BISYNC BInary SYNchronous Communication (COP, IBM Inc.) BIT Basic Interconnection Test(s) BIT Billing Infrastructure Team bit Binary Digit BIT Built-In Test BITBLT BIT Boundary BLock Transfer BitBlt Bit-Block Transfer BITE Backward Interworking Telephone Event BITE BNR Integrated Test Environment BITE Built In Test Equipment BITEL Bildschirm Telefon BITNET Because It's Time Network BITNIC BITNET Network Information Center BITS Building Integrated Timing Source BITS Building Integrated Timing Supply BITS Building Integrated Timing System BIU Base Station Interface Unit BIU Basic Information Unit (SNA) BIU Bus Interface Unit BIX Building Interoffice Crossconnect BIX Byte Information Exchange BJ ISO country code for People's Republic of Benin BJT Bipolar Junction Transistor BK BasK BK Break BKER Block Error Rate BKI Break-In BKWD BacKWarD BL Base Register Low Half BL Betriebslenkung (Deutsche Telekom regional operations and maintenance centre) BL Betriebslenkung (Operational Routing) BL Blue Lightning BLA Blocking Acknowledgement signal BLA Blocking Acknowledgment message BLAST Balanced Logic Asynchronous Synchronous Transceiver Chip BLAST Blocked Asynchronous Transmission BLC Billing Collector BLC Buffer Location Counter B-LCSE Bidirectional Logical Channel Signalling Entity BLD Binary Load Dump (SPADE) BLD Block of Logical Drawers BLD Build File BLDN Blank Directory Number Treatment BLDNTSP Billing DN Per TSP BLER BLock Error Rate (digital test parameter) BLER Block Error Ratio BLER Block Error Result BLERT Bit-Loss Error Rate Testing BLERT Block Error Rate Test BLERT Block Error Rate Testing BLF Busy Lamp Field BLG Circuit Group Blocking message BLIC Bimos Line Interface Circuit BLID Basic Calling Line ID BLK Block BLKD Blocked BLLF Basic Low Layer Function(s) B-LLI Broadband Low Layer Information BLM Basic Line Monitoring BLM Business Line Management BLM Business Line Manager B-LMI Broadband Local Management Interface BLN Backbone Link Node BLO Blocking message BLO Blocking signal BLOb Binary Large Object BLOS Beyond Line of Sight BLP Bar Line Printer BLP Buffer of Local Packets BLP Bypass Label Processing BLR Bell Laboratories Record BLR Blocking/Unblocking Signal Reception BLS Basic Line Services BLS Block Link Sets BLS Blocking/Unblocking Signal Sending B-LS Broadband-Locking Shift BLSR Bidirectional Line-Switched Ring BLT Block Transfer blt Block Transfer BLTJ AT&T Bell Laboratories Technical Journal BLTJ Lucent Technologies Bell Labs Technical Journal BLU Basic Link Unit BLV Busy Line Verification BLV/INT Busy Line Verification/Operator Interrupt BM Basestation Module Bm Bearer-Mobile Channel BM Buffer Memory BM Button Message Bm Full-rate traffic channel BM ISO country code for Bermuda BMA Board Management Agent BMA Broadband Multiple Access BMA Business Maturity Assessment B-MAP B-field MAP BMAS Business Management System BMC Bearer Channel Make Connection BMC Billing Media Converter BMC Broadcast Message Control BMC Burst Mode Controller BMC II Billing Media Converter II BMI Branch if MInus BML Business Management Layer BMLA Burst Mode Link Analyser BMMI Bilingual Man-Machine Interface BMP Basic Multilingual Plane BMP Bearer Channel Monitor Reliability Stop BMP Bitmap BMP Bitmap File BMP Microsoft Windows Bitmap BMPT Bundesministerium (Bundesamt) für Post und Telekommunikation BMS Backup Management System BMS Bandwidth Management Service BMS Bearer Channel Monitor Reliability Start BMS Broadcast Message Server BMS Broadcast Message System BMS Buffer Management System BMSD Business Management System Description BMSM BMS Manager BMU Basic Measurement Unit BMU Battery Management Unit BMU Bit Manipulation Unit BN Backward Explicit Congestion Notification BN Basic Numbered BN Billing Number BN Billing Number Records BN Bit Number BN Bonding Network BN Bridge Number BN Button Notification BN ISO country code for Brunei Darussalam BNA Backbone Network Architecture (as opposed to CNA) BNA Billing Name and Address BNA Burroughs Network Architecture BNA Burst Not Acquired BNC Bayonet Neill Concelman BNC Bayonet Nut Connector BNC British National Connector BNCSM Basic Non-Call-Associated State Model BNF Backus-Naur Form BNI Blank Number Intercept BNI Broadband Networks Inc. BNIG Before the Next Interaction Globally BNIL Before the Next Interaction Locally BNK Betriebsfuhrung-Netzknoten (Operations Network Node) B-NLS Broadnand-Non-Locking Shift BNM Bureau de Normalisation de la Mechanique BNM Business Network Management BNMR Business Network Modernization Research BNN Balanced Network Number BNN Bridged Night Number BNQ Burst Not Qualified BNR Bell Northern Research BNR Billing Number Record BNRJ BNR Japan BNS Billed Number Screening BNS Billing Number Selection BNS Broadband Network Services BNS Broadband Networking Services BNS Business Network Services B-NT Broadband Network Termination Equipment B-NT1 Broadband Network Termination- Type 1 B-NT2 Broadband Network Termination- Type 2 BNU Basic Networking Utilities BNV Balance Network Value BNZS Binary N Zeros Substitution BO all Barring of Outgoing call services BO Back Off BO Barring of All Outgoing Calls BO Bit-Oriented BO Branch Office BO Byte Ordering BO Invalid Behaviour BO ISO country code for Republic of Bolivia BO EOC Bit-Oriented Embedded Operations Channel BOA Basic Object Adapter BOAM Bell Owned And Maintained BOC Barring of Outcoming Calls (TETRA) BOC Bell Operating Company BOC Bell Operating Company BOC Build-Out Capacitance BOCP Bellcore Operations System Network Communications Protocol BOD Bandwidth On Demand BOD Battery On Discharge BODTC B-Channel Outgoing Default Throughput Class BOF Beginning Of File BOF Beginning of Frame BOF Birds of a Feather BOI Blind Operator Interface BOIC Barring of Outgoing International Calls BOIC Barring of Outgoing International Calls (supplementary service) BOIC-exHC Barring of Outgoing International Calls except those directed to the Home PLMN Country (supplementary service) BOL Beginning of Life BOLD Bit-Oriented Line Discipline (SWIFT) BOM Base Operational Measurements BOM Beginning of Message BOM Bill of Materials BOM Bit-Oriented Message BOMMO Base OMMO BOMPS B-Channel Outgoing Maximum Packet Size BOMSIG Business Object Management Special Interest Group BON Better Object Notation BON Business Object Notation BONALS Type "B" Off-Network Access Lines BOND Bandwidth On Demand BONDING Bandwidth On Demand Interoperability Group BONT Broadband Optical Network Termination BOOTP Bootstrap Protocol BOP Bit Oriented Protocol (SDLC/HDLC) BOP Bit-Oriented Protocol BOPS Billion Operations Per Second BOR Beginning of Recording BORAM Block ORiented Random Access Memory BORSCHT Battery Feed, Overvoltage Protection, Ringing, Supervision, CODEC, Hybrid, and Testing BORSCHT Battery Overvoltage Ringing Signalling Coding Hybrid Test BOS Basic Operating System BOS Basic Operation System BOS Bell Operating System BOS Billing Outputs Specifications BOS Build Options Specification BOSS Billing and Order Support Systems BOSS Binary Object Storage System BOSS Binary Object Streaming Service BOSS Broadband Operations Support System BOSS Business Operations Services and Systems BOT Beginning of Tape BOT Build-Operate-Transfer BOT Busy Override Tone BOTM Beginning Of Tape Mark BP Back Plane BP Back Pressure BP Backplane BP Band Pass BP Base Pointer BP Basic Position BP Basic Purpose BP Bearer Path BP Billing Profile BP Block Parity BP Breakeven Point BP Breakpoint BP Burst Period BP Bypass BPAD Binary Synchronous Communication Packet Assembly/Disassembly BPAM Basic Partition Access Method BPB BIOS Parameter Block BPC B Party Control BPC Bearer Path Connection BPC Bilateral Private Circuit BPC Bits Per Character BPC Broadband Processing Card BPCI BellSouth Personal Communications Inc. BPCS Broadband PCS BPD Backplane Driver BPDU Battery Power Distribution Unit BPDU Bridge Protocol Data Unit BPF Band Pass Filter BPF Berkeley Packet Filter bpi Bits Per Inch BPI Bits Per Inch BPI Business Performance Incentive bpi Bytes Per Inch BPKTGP B-Channel Packet Group BPl Bedienplatz (Operator Position) BPM Beats Per Minute BPMCC Borland Presentation Manager Custom Control BPO British Post Office BPON Broadband over Passive Optical Network BPON Broadband Passive Optical Network BPP Billed Party Preference bpp Bits Per Pixel BPP Bridge Port Pair BPP Buffered Pipe Protocol BPR Backplane Receive BPR Business Process Reengineering BPRZ Bipolar Return to Zero BPS Background Processing State BPS Basic Programming Support bps Bits Per Second BPSK Binary Phase Shift Keying (2-PSK) BPSK Binary Phase-Shift Keying BPSN Broadband Packet-Switched Network BPSR Bidirectional Path-Switched Ring BPSS Basic Packet Switched System BPSS Basic Packet Switching Service BPU Bit boundary block transfer Processing Unit BPU Branch Processing Unit BPV Bipolar Violation BPVO Bipolar Violation Overflow BPX Broadband Packet Exchange BQ Broadcast Quality BQ Burst Qualified BQA Broadcast Quality Applications BQPRIV Block Queries for Private Numbers BQRS Bellcore Quality Registration Services B-QSIG Broadband QSIG BR Base Register BR Basic Rate BR Basic Rate access BR Battery Return BR Battery Reversal BR Billing Report BR Bit Rate BR Branch BR Break BR Bridge BR Bus Request BR Byte Register BR ISO country code for Federative Republic of Brazil BR Line Break (HTML tag) BR Radiocommunications Bureau (ITU) BR0 Base Register 0 BR1 Base Register 1 BR2 Base Register 2 BR3 Base Register 3 BRA Basic Rate Access BRA Basic Rate Area BRACAN Brazil-Canary Islands submarine cable BRAFS Basic Rate Access Functional Set BRAG Basic Rate Agency BRAKS Basic Rate Access Key Set BRAM Brampton BRAMFT Basic Rate Access Meridian Feature Transparency BRAN Broadband Radio Access Network(s) BRB Basic Rate Boundary BRB Be right back BRC Bidirectional Trunk Group Reservation Control BRC Bit Rate Converter BRCO Broadband Restoration Control Office BRCS Business and Residence Custom Services BRCS Business and Residential Customer Services BRCX Bit Rate Converter BRDG Bridge BRE Basic Regular Expression BREV Base Relation Evolution BRF Band Rejection Filter BRF Bandwidth Request Field BRF Bell Rings Faintly BRG Baud Rate Generator BRG Bit Rate Generator BRG Bridging BRG Business Research Group BRGSERV Digital Bridging BRH Bureau of Radiological Health BRI Basic Rate Interface (2x64kbit/s+1x16kbit/s) BRI Basisanschluss (Basic Rate Interface) B-RI Broadband-Repeat Indicator BRICM Basic Rate Interface Communications Module BRIDIAG BRI Diagnostics Task BRIFS Basic Rate Interface Functional Signalling BRI-ISDN Basic Rate ISDN BRIMTC BRI Maintenance Task BRISC BNR Reduced Instruction Set Computer BRISC BNR Reduced Instruction Set Computing BRISP BRI Signaling Processor BRISS BRI Service Supervisor BRIT Basic Rate Interface Trunk BRITE Basic Rate Interface Transmission Extension BRITE Basic Research in Industrial Technologies for Europe BRI-U Basic Rate Interface- U-Interface BRIV Basic Rate Interface Verification BRIV-108 Basic Rate Interface Verification, 108-Type Test Line Loopback BRIV-OE Basic Rate Interface Verification, Office Equipment Assignment Verification BRJ Bandwidth Change Reject BRJ Bandwidth Reject BRK Break BRKT BRacKeT BRL Balance Return Loss BRLC Broadband Remote Line Concentrator BRM Backward RM-cell BRM Basic Reference Model (=RM OSI) BRND Branding BROM Bipolar Read-Only Memory BROUTER Bridge and ROUTER combination (layer 3 internetworking) BRQ Bandwidth Change Request BRQ Bandwidth Request BRS Base Radio Stack (TETRA) BRS Big Red Switch BRS Block Received Signal BRS Buried Ridge Structure BRSU Broadband Remote Switch Unit BRT BIC Relay Test BRT Business Remote Terminal BRUS Brazil-U.S. submarine cable BRV Backup Recovery Vector BS Back Shift BS Back Space BS Backing Store BS Backspace BS BackSpace (ASCII Character) BS Backward Signaling BS Banded Signaling BS Base Station BS Base Station BS Basic Service (group) BS Basic Session BS Bearer Service BS Block Start BS British Standard (UK) BS Broadcast Satellite BS Broadcasting Satellite BS Broadcasting Service BS Brush Style BS Busy Season BS Button Style BS ISO country code for Commonwealth of the Bahamas BSA Base Station Address BSA Basic Service Area BSA Basic Serving Arrangement BSA B-Channel Selection Algorithm BSA Broadband Services Amplifier BSA Business Software Alliance BSAC Broadcasting Spectrum Advisory Committee BSAM Basic Sequential Access Method BSAP Base Station Application Part BSB BackSpace Block BSB BaSeBand (Radio Repeater) BSC Banctec Service Corp BSC Base Station Controller BSC Binary Synchronous Communication BSC Binary Synchronous Communications BSC Broadband Service Controller BSC Browser Information file BSC Business Service Center B-SC Broadband-Sending Complete BSCA Binary Synchronous Communication Adapter BSCA Busy Second Call Attempt BSCL Bell System Common Language BSC-OS Base Station Controller- Operation System BSD Berkeley Software Distribution BSD Berkeley Standard Distribution BSD Busy Disposition BSDB Business Services Database BSDI Berkeley Software Design, Inc. BSDL Boundary-Scan Description Language BSD-LFS BSD Log-Structured File System BSE Basic Service Element BSE Byte Stream Element BSEE Bachelor of Science and Electrical Engineering BSET Business Set BSF BackSpace File BSG Basic Service Group BSG Basic Service Group BSG British Standard Guage BSGDP Business Subgroup Dialing Plan BSGL Branch Systems General Licence (UK) BSGL Branch Systems General License BSH Bourne Shell bsh Bourne Shell BSHR Bidirectional Self-Healing Ring BSHR/2 2-Fiber Bidirectional Self-Healing Ring BSHR/4 4-Fiber Bidirectional Self-Healing Ring BSI Backward Status Indicators BSI Backward Status Information BSI Binary Synchronous Interface BSI Bit Sequence Independence BSI Bit-Stream Information BSI British Standard Institute(ion) (UK) BSI British Standards Institution BSIC Base Station Identity Code BSIC Base transceiver Station Identity Code BSkyB British Sky Satellite Broadcasting BSLT Broadband Subscriber Line Terminal BSM Backward Set-Up Message BSM Base Station Manager BSM Billing Services Management BSM Billing Systems Management BSM Broadband Switching Module BSMM Bidirectional Symmetric Multipoint-to-Multipoint BSMS Base Site Management System BSMS Broadband Service Managent System BSMS Business Service Monitoring System BSN Backward Sequence Number BSN Broadband Service Node BSNR Backward Sequence Number Received BSNT Backward Sequence Number Transmitted BSOD Blue Screen of Death BS-OS The part of the Base Station dealing with the O & M process BSP Bell System Practice BSP Bitsurfer Pro BSP Board Support Package BSP Bootstrap Processor BSPM Bidirectional Symmetric Point-to-Multipoint BSPP Bidirectional Symmetric Point-to-Point BSR BackSpace Record BSR Branch to SubRoutine BSR Broadband Services Receiver BSRF Basic Synchronization Reference Frequency BSRF Bell System Reference Frequency BSRFN Bell System Reference Frequency Network BSRFS Bell System Reference Frequency Standard BSRP Base Station Radio Part (TETRA) BSRS Bell System Repair Specification BSS Base Station Subsystem BSS Base Station System BSS Basic Service Set BSS Basic Session Service BSS Basic Synchronized Subset BSS Basic Synchronized Subset (OSI-SL) BSS Block Started by a Symbol BSS Broadband Switching System BSS Broadcast Satellite Service BSS Broadcasting Satellite Service BSS Business Service System BSSAP Base Station Subsystem Application Part BSSAP Base Station System Application Part BSSGP BSS GPRS Protocol BSSM Basic Service State Machine BSSMAP Base Station Subsystem Management Application Part BSSMAP Base Station Subsystem Mobile Application Part BSSMAP Base Station System Management Application Part BSSMAP BSS Management Part BSSOMAP Base Station System Operation and Maintenance Application Part B-SSP Broadband SSP BST Base Station Transceiver BST Binary Search Tree BST British Summer Time BST Busy Tone BSTJ Bell System Technical Journal B-STP Broadband STP BSTR Basic String BSTS Broadband Series Test System BSU Baseband Switching Unit BSUG Bilateral Closed User Group BSVC Broadcast SVC BSVCI Broadcast Signaling Virtual Channel Identifier BSVR Billing Server BSW Broadcast Services for Windows BSXF Burst Sync Failure (SPADE) BSY Busy BT Bandwidth Time product BT Base Transceiver BT Begin of Tape BT BiT sublayer BT Bit Time BT Bridge Tap BT British Telecom BT Bureau Technique BT Burst Tolerance BT Business Telecommunications BT Business Telecommunications (ETSI TC, later BTC) BT Busy Test BT Busy Tone BT ISO country code for Kingdom of Bhutan BT7 British Telecom Signaling System 7 BTA Basic Trading Area BTA Beijing Telecommunications Administration BTA Broadband Terminal Adaptor BTA Broadcasting Technical Association BTA Broadcasting Technology Association B-TA Broadband Terminal Adapter BTAC BellSouth Technical Assessment Center BTAC Branch Target Address Cache Btag Beginning Tag BTAM Basic Telecommuniactions Access Method (IBM/X.25) BTAM Basic Telecommunications Access Method BTB Branch Target Buffer BTC Broadcast Translation Circuit BTC Business TeleCommunications (ETSI TC, former BT) BTCF Basic Transit Control Function BTDS Bit Transparent Data Service BTE Base Terminating Equipment BTE British Telecommunications Engineering BTE Business Terminal Equipment B-TE Broadband Terminal Equipment BTF Bellcore Technical Forum BTF Binary Transversal Filters BTF Bulk Transfer Function BTI British Telecom International (obsolete) BTI Business Telecom Inc. BTITS Bureau of Telecommunications and Informations Services BTL Bell Telephone Laboratories BTL BT Laboratories BTL Bus Transceiver Logic (National Semiconductor Inc.) BTLD Boot-Time Loadable Driver BTM Bell Telephone Manufacturing BTMA Busy Tone Multiple Access BTN Billing Telephone Number BTNR British Telecom Network Requirement BT-NUP British National User Part BTO Build-To-Order BTO Bulk Translations Output BTP Base Station Transport BTP Buffer of Transit Packets BTP Burst Time Plan BTPC Bus Termination Paddle Card BtPl Betriebsplatz (Maintenance Console) (Operating Position) BTR Behind Tape Reader (system) BTR Billing Trigger Receiver BTR Bit Timing Recovery BTR Blind Transfer Recall BTR British Telecom Requirement BTRI Blind Transfer Recall Identification BTRL British Telecom Research Laboratories BTS Base Transceiver Station BTS Base Transmission Station BTS Burst Time Synchronisation BTSC Broadcast Television Systems Committee BTSM Base Transceiver Station Management BTT Background Telephone Traffic BTTH Broadband To The Home BTTJ BT Technology Journal BTU Basic Transmission Unit (SNA) BTU British Thermal Unit BTUP British Telecom National User Part BTUP British Telecom User Part BTW By the way Btx Bildschirmtext BU Branch Unit BU Branching Unit BU Business Unit BU ISO country code for Burma (obsolete) BUC Context Bundler/Unbundler BUD Bundler, Unbundler and Distributor BUF Buffer BUFR Binary Universal Form for the Representation of Meteorological Data BUI Bilingual User Interface BUIC Blocking/Unblocking of Incoming Calls BUID Bus Unit ID Bul Bulletin BUNI Broadband User/Network Interface BUPT Beijing University of Posts and Telecommunications BUS Broadcast and Unknown Server BUS Broadcast/Unknown Server Bus Business BUT BUTton BUUSI Blocking of User-to-User Signaling Interswitch BUUSIX Blocking of User-to-User Signaling to an IXC BUV Backscatter Ultraviolet Spectrometer BV Behaviour Valid BV Busy Verification BV ISO country code for Bouvet Island BVA Billing Validation Administration BVA Billing Validation Application BVA Billing Validation Authority BVC Billing Validation Center BVC Billing Verification Check BVCI Broadcast Virtual Channel Identifier (B-ISDN) BVCP Banyan Vines Control Protocol BVF Billing Validation File BVG Billing Validation Gateway BVL Busy Verification, Lines BVMS Business Voice Messaging Service BVPN Broadband Virtual Private Network BVR Basic Version Receiver BVR Busy Verify BVS Busy Verification, Stations BVSP Borland Visual Solutions Pack BVT Busy Verification Tone BVT Busy Verification, Trunks BVTONE Busy Verification Tone BVW Backward Volume Wave BVW Belleville BW Bandwidth BW Both-Way BW Buried Wire BW ISO country code for Republic of Botswana BWA Bandwidth Allocator BWA Broadband Wireless Access BWCC Borland Windows Custom Controls BWD Backward BwD Bandwidth-Delay BWF B-Word Facility BWG Birmingham Wire Guage BWI Bell-South Wireless Inc. BWM BandWidth Manager BWM Broadcast Warning Message BWP BATC Write Port BWP0 BATC Write Port Register 0 BWP1 BATC Write Port Register 1 BWP2 BATC Write Port Register 2 BWP3 BATC Write Port Register 3 BWP4 BATC Write Port Register 4 BWP5 BATC Write Port Register 5 BWP6 BATC Write Port Register 6 BWP7 BATC Write Port Register 7 BWQ Buzz Word Quotient BWR Bandwidth Ratio BWSC Broadband Wireless Switching Center BX Base register BxZS Bipolar xth Zero Substitution BY Busy by BYTE (unsigned char) BY ISO country code for Belarus (formerly Byelorussia) BY/DA Busy/Don't Answer BYP BYPass BZ ISO country code for Belize BzA Bereitstellung zur Abnahme (DBPT acceptance testing) BZT Bundesamt für Zulassungen in der Telekommunikation (D) BZV Befristeter Zaehlvergleich (Charging Verification Service)
C Call
C Capacitance
C Capacitance
C Capacitor
C Carry
C CCR Service
C Celsius
c centi (10-2)
C Central side
C Centrigrade
C Changed
c char
C Character
C Clock
C Closed
C Command
C Concatenated
c Concatenated
C Conditional
C Connect
C Constructed
C Container
C Control
C Control field
C Copyright
C Core (Computing Module)
C Cost
C Coulomb
C Cross (link)
C Cyan
C Frame-Copied
C&D Control and Display
C&I Commissioning and Installation
C&I Control and Indication
C&M Conferencing and Messaging
C&MA Construction and Maintenance Agreement
C&P Chesapeake and Potomac (Telephone Co.)
C&S Card and Socket
C&W Cable & Wireless
C&NI Communication & Networking of Information
C&S Control & Switching functions
C/C Cell Controller
C/D Charge-Discharge
C/D Control and Display
C/D Critical Dimension
C/I Carrier to Interference ratio
C/L ConnectionLess
C/N Carrier to Noise Ratio
C/O Connection-Oriented
C/R Challenge/Response pair (TETRA)
C/R Command/Response
C/R Command/Response field bit
C/S Client/Server
C/T Carrier power to noise Temperature ratio
C/T Carrier to Noise Temperature Ratio
C/WS Cost per Work Second
C-11 Container-Level 11
C-12 Container-Level 12
C2 Command and Control
C-2 Container-Level 2
c2d Code to Documentation Tool
C3 Command, Control and Communications
C-3 Container-Level 3
C3I Command, Control, Communications, and Intelligence
C3Q Coverage, Capacity and Quality versus Cost
C-4 Container-Level 4
C4I Command, Control, Communications, Computers, and Intelligence
C6TU CCS6 Test Utility
C7 CCITT Common Channel Signaling System No. 7
C7FPG CCS7 Functional Parameter Group
C7TD CCS7 Test Driver
C7TU CCS7 Test Utilities
C7UP CCS7 ISUP
CA Cable
CA Cache Alignment
CA Call Accepted
CA Call Announcer
CA Call Appearance
CA Call Attempt
CA Capability
CA Carrier Agent
CA Cell Allocation
CA Central Agent
CA Certification Authority
CA Certifying Authority
CA Circuit Assigned
CA Cluster Alpha Tested
CA Collision Avoidance
CA Communication Adapter
CA Community Address
CA Competitive Analysis
CA Component Architect
CA Computer Animation
CA Computer-Aided
CA Conditional Access
CA Connection Agent
CA Conseil d'Administration
CA Content Alignment
CA Control Agent
CA Customer Access
CA Customer Administration
ca Internet country code for Canada
CA ISO country code for Canada
CA U.S. postal code for California
CAA Civil Aviation Authority
CAAC Customer Administration of Authorization Codes
CAAFRL Customer Administration of Alternate Facility Restriction Levels
CAAR Cache Address Register
CAB Cabinet
CAB Cabinet file
CAB Customer Advisory Board
CABOP Call Management System Automatic Recall Blocking to Private Numbers
CABS Carrier Access Billing System
CAC Call Accept
CAC Call Admission Control
CAC Carrier Access Code
CAC Centralized Arbitration Control
CAC Commercial Action Committee (CEPT)
CAC Connection Admission Control
CAC Customer Access Connection
CACE Carrier Access Code Error Treatment
CACH Call Appearance Call Handling
CACI Communication Automation and Control, Inc.
CACM Communications of the ACM (periodical)
CACP Central Arbitration Control Point
CACR Cache Control Register
CACRL CAs CRL
CACS Centralized Alarm and Control System
CAD Call Acceptance Delay
CAD Call Authorised by Dispatcher (TETRA)
CAD Card Accepting Device
CAD Computer-Assisted (aided) Design
CAD Computer-Assisted Dialing
CAD Connected-Address Display
CAD/CAM Computer-Aided Design and Manufacture
CADA Compact Asynchronous Data Adapter
CADAM Computer Augmented Design and Manufacturing
CADCAM Computer-Aided Design and Computer-Aided Manufacture
CADCS Call Attempt Data Collection Services
CADCS Call Attempt Data Collection System
CADD Computer Aided Design and Drafting
CADD Computer Aided Detector Design
CADDIA Cooperation in Automation of Data and Documentation for Imports/exports and management and Financial control of Agricultural markets
CADE Computer Aided Document Engineering
CADES Computer Aided DMS Engineering System
CaDivI Call Diversion Information
CADM Content-Addressable Data Manager
CADMAT Computer-Aided Design, Manufacture and Testing
CADN Cellular Access Digital Network
CADN Circuit Administration
CADSIM Continuous And Discrete Simulation
CAE Change Application Engineering
CAE Common Application Environment (X/Open)
CAE Communications Applications Environment
CAE Computer-Aided Engineering
CAE Customer Application Engineering
CAESS Customer Application Engineering Support System
CAF Common Application Framework
CAF Content Application Form
CAF Corel Application Framework
CAFD Comptroller's Automatic Message Accounting Format Description
CAFIS Credit and Financial Information System
CAG Call Agent
CaHI Call History Information
CAI Carrier Access Information
CAI Charge Advice Information
CAI Common Air Interface
CAI Computer Aided Instruction
CAI MDII: Address Incomplete Signal Received
CAIN Collected Address Information Number
CAIP Computer Aids to Industrial Productivity
CAKE Commercial Automated Key Escrow
CAL Calendar file
CAL Computer Aided Learning
CAL Customer Access Link
CALA Caribbean and Latin America
CALC Customer Access Line Charge
CALEA Communications Assistance for Law Enforcement Act
CALL PROC Call Proceeding message
CALLBL Call Block
CallL Call Leg
CallP Call Processing
CALM Central Alarm Monitoring
CALM Centralized Alarm
CALM Common Assembly Language for Microprocessors
CALMS Credit and Load Management System
CALP Called Line Identification Presentation
CALRS Centralized Automatic Loop Reporting System
CALS Computer aided Acquisition and Logistic Support (United States Military)
CALS Computer aided Acquisition, Logistics and Support (DoD program)
CALS Continuous Acquisition and Lifecycle Support
CALS Continuous Acquisition and Lifecycle System
CAM Call Accepted Message
CAM Call and Agent Manager
CAM Cell Arrival Monitoring
CAM Channel Adapter Manager
CAM Common Access Method
CAM Common Analysis Model
CAM Communication Access Method
CAM Communications Application Module
CAM Computer Aided Mapping
CAM Computer-Aided Manufacturing
CAM Connections Access Manager
CAM Content Addressable Memory
CAM Controlled Attachment Module
CAM Customer Access Module
CAM1 Communications Application Module, Type 1
CAM2 Communications Application Module, Type 2
CAMA Centralized Automatic Message Accounting
CAMAC Computer Application to Measurement And Control
CAMA-C Centralized Automatic Message Accounting-Computerized
CAMA-ONI Centralized Automatic Message Accounting-Operator Number Identification
CAMC Customer Access Maintenance Centre
CAMEL Customized Applications for Mobile networks Enhanced Logic (GSM term)
CAMENG Computer Aided Manufacturing Engineering
CAMF Customer Access Management Function
CAMMS Centralized Access Maintenance and Monitoring System
CAMS Central Administration and Maintenance Subsystem
CAN Campus-Area Network
CAN Cancel
CAN Cancel Abbreviated Number Delivery
CAN Central Administration for NDAF
CAN Controller Area Network (Automotive Electrics, R. Bosch GmbH)
CANBER Canada-Bermuda submarine cable
CANC Cancel
CANF Cancel From
CanF Cancel From
CANT Cancel To
CanT Cancel To
CANTRAN Cancel Transmission
CANTS Customer Access Network Transmission Standards
CANTV Compania Anonima Nacional Telefonos de Venezuela
CAP Call Appearance
CAP CAMEL Application Part
CAP Capability
CAP Capacitor
CAP Carrierless AM/PM
CAP Carrierless Amplitude and Phase
CAP Carrierless Amplitude Modulation/Phase Modulation
CAP Carrierless Amplitude/Phase
CAP Carrierless Amplitude/Phase Modulation
CAP Cell Arrival Pattern
CAP Cellular Access Processor
CAP Cellular Application Processor
CAP Central Answering Position
CAP Central Arbitration Point
CAP Change Application Procedure
CAP Circuit Access Point
CAP Common Application Platform
CAP Communication of Act Parameters
CAP Competitive Access Provider
CAP Computer Aided Publishing
CAP Conformance Assessment Process
CAPAC Cable Packet Communications
CAPAM Call Appearance for Analog Member of EKTS
CAPC Congestion Avoidance with Proportional Control
CAPG Control of Application Process Group
CAPI Call Appearance Identifier
CAPI Common API for ISDN
CAPI Common Application Programming Interface
CAPI Common ISDN API
CAPNET Captive Network
CAPP Computer Aided Process Planning
CAPS Call Appearance Sequence
CAPS Call Attempts Per Second
CAPT Call Appearance Terminal
CAPTAIN Character And Pattern Telephone Access Information Network
CAQ Computer Aided Quality control
CAR Cal Request
CAR Call Request
CAR Carrier
CAR Carry
CAR Cartoon Network
CAR Channel Assignment Record
CAR Communication of Act Relationship
CAR Computer Access Restriction
CAR Computer Aided Radiology
CAR Computer Aided Retrieval
CAR Connection Address Resolution
CAR Corrective Action Request
CARAM Content Addressable Random Access Memory
CARB Channel Assignment with Borrowing and Reassignment
CaRe Call Reference
CARE Customer Account Record Exchange
CARE/ISI Customer Account Record Exchange/Industry Support Interface
CARES EKTS Call Appearance Reservation
CARIN Center for Applied Research on Information Networking
CAROT Centralized Automatic Reporting On Trunks
CARP Cache Array Routing Protocol
CARPAC Carrier Pretest and Cutover
CARRET CARriage Return
CARS Cable Television Relay Station
CARS Communication Analysis Reporting System
CARS Community Antenna Relay Service
CARS Computerized AMA Recording System
CARTS Carrier Accounting Records Transport System
CARTS Circuit Assignment Record Transfer System
CAS Call Accounting System
CAS Call Associated Signaling
CAS Call Attendant Services
CAS Centralized Attendant Service
CAS Channel Associated Signaling
CAS Column Address Select
CAS Column Address Strobe
CAS Communications Application Specification (DCA-INTEL eq to Net BIOS or LANManager)
CAS Component Administration System
CAS Computer Aided Systems
CAS Computer-Assisted Signaling
CAS Conseil de la Audiovisuel Superieur
CAS Content Addressable Storage
CAS Control Automation System
CAS CPE Alerting Signal
CAS CPS Architecture Summary
CAS Craft Administration System
CAS Customer Access Systems
CAS Customer Account Services
CAS IBM Centre for Advanced Studies
CASA Connection Arrangement for Switched Access
CASCO ISO council Committee on COnformity ASsessment
CASD Computer Aided System Design
CASE Common Application Service Element
CASE Computer-Aided Software Engineering
CASE Computer-Assisted Software Engineering
CASE Computing and Systems Evolution
CASL Crosstalk Application Scripting Language
CASOP CMS AR Screening Of Private Calls
CAST Carlisle Adams-Stafford Tavares
CAST Computerized Automatic System Tester
CASVE Computer Aided Software Verification Environment
CAT Catalog File
CAT Centrex Access Treatment
CAT Clear Air Turbulence
CAT Comite des Activites Techniques (CEPT)
CAT Common Authentication Technology
CAT Component Assembly Tool
CAT Computer Aided Testing
CAT Computer Aided Tomography
CAT Computer Aided Translation
CAT Computer Aided Typesetting
CAT Computer-Aided Transcription
CAT Computerized Axial Tomography
CAT Council for Automation Tools
CAT Customer Access Treatment
CATA Canadiabn Advanced Technology Association
CATCR Customer Access Treatment Code Restriction(s)
CATFOP CMTS AMA Tape Formatted Output Program
CATG Computer Aided Test Generation
CATLAS Centralized Automatic Trouble Locating and Analysis System
CATNIP Common Architecture for the Internet Protocol
CATRP China Academy of Telecommunications Research and Planning
CATS Calling Card and Third Party Number Settlement
CaTS Capacity Tracking System
CATS Cellular Air Traffic System
CATS Computer Aided Testing System
CATS Computer-Accessed Telemetry System
CATS Consortium for Audiographics Teleconferencing Standards
CATS Crossconnect And Transfer System
CATT Centralized Automatic Toll Ticketing
CATTS Centralized Automatic Trunk Test System
CATV Cable Television
CATV Community Antenna Television
CATV Community Antenna TV
CAU Cable Access Unit
CAU Cause
CAU CDMA Application Unit
CAU Cell Antenna Unit
CAU Control Arithmetic Unit
CAU Controlled Access Unit
CAU Customer Access Unit
CAV Card Access Valid
CAV Component Analog Video
CAV Constant Angular Velocity
CAVE Cellular Authentication and Voice Encryption
CAVE Computer Automatic Virtual Environment
CAVU Cellular Authentication and Voice Privacy Unit
CAW Certification Authority Workstation
CAW Channel Address Word
CAW Command Address Word
CAX Community Automatic Exchange
Cb Blue Chrominance
CB Call Barring
CB Call forwarding Busy
CB Carrier Band (modulation technique)
CB Cell Broadcast
CB Channel Bank
CB Chrominance colour difference, Blue
CB Circuit Breaker
CB Citizens Band
CB Citizen's Band (Radio)
CB Clear Back
CB Coin Box
CB Common Battery
CB Compatibility Bulletin
CB Connecting Block
CB Connection Broker
CB Control Block
cb Count of bytes
CB/TH Circuit Breaker- Thermal
CB1 Clear-Back No. 1 signal
CB2 Clear-Back No. 2 signal
CB3 Clear-Back No. 3 signal
CBA Changebank Acknowledgement message
C-band 4/6 GHz frequency range
CBA-RA Coin Box Accounting for Revenue Allocation
CBASIC Compiled-BASIC
CBBS Computerized Bulletin Board System
CBC Call By Call
CBC Canadian Broadcasting Corporation
CBC Can't Be Called
CBC Cell Broadcast Centre (GSM)
CBC Cell Bus Controller
CBC Channel Bus Controller
CBC Cipher Block Chaining
CBC Circuit Bearer Channel
CBC Connectionless Bearer Control
CBC Consecutive Blank Column
CB-CC Connection Broker-Connection Control
CBCH Cell Broadcast Channel
CBCH Common Control CHannel
CBCP Callback Control Protocol
CBCSS Call By Call Service Selection
CBD Call Box Discrimination
CBD Changeback Declaration message
CBDS Circuit Board Design System
CBDS Connectionless Broadband Data Service
CBDS Constant Bit Rate Data Service
CBDT Can't Break Dial Tone
CBE Call Forwarding Busy Internal Calls Only
CBE Centralized Branch Exchange
CBEd Computer-Based Education
CBEMA Computer and Business Equipment Manufacturers Association
CBG Census Block Group
CBH Can't Be Heard
CBI Call Forward Busy Intragroup
CBI Channel Bus Interface
CBIC Complimentary Bipolar Integrated Circuit
CBIC Control Bus Interface Chip
CBIOS Compatibility BIOS
CBIS Cincinnati Bell Information Systems
CBK Change Back
CBK Clear Back message
CBK Clear-Back signal
CBK Code Blocking
CBL Charge-Buffered Logic (Low-Power Bipolar Logic Family)
CBLU Citizens Band Licencing Unit
CBMI Cell Broadcast Message Identifier
CBMS Computer Based Message Service
CBMS Computer Based Message Switching
CBMS Computer-Based Message System
CBN Common Bonding Network
CBN Compromise Balance Network
CBO Continuous Bit-Stream Oriented
CBO Cooperative Business Object
CBP Coded Block Pattern
CBQ Call Back Queuing
CBQ Class Based Queuing
CBR Carrier and Bit timing clock Recovery
CBR Cavity-Backed Radiator
CBR Constant Bit Rate
CBR Continuous Bit Rate
CBR-AAL Constant Bit Rate ATM Adaptation Layer
CBS Card Buffer Storage
CBS Cell Broadcast Service
CBS Centralized Business Service
CBS Columbia Broadcasting System
CBS Committed Burst Size
CBS Common Battery Signaling
CBS Communal Base Station
CBS Communication Base Station
CBS Constant Bitrate Services
CBSC CDMA Base Station Controller
CBSW Common Board Software
CBsy C-Side Busy
C-BSY Core Side Busy
CBT Computer-Based Terminal
CBT Computer-Based Training
CBT Core-Based Tree(s)
CBT Cursor Backward Tab
CBTA Canadian Business Telecommunications Alliance
CBTA Canadian Business Telecommunications Association
CBU Call Forwarding Busy Unrestricted
CBUD Call Before U Dig
CBUS Control Bus
C-Bus Channel Transport Bus
C-Bus Channelized Bus
CBW Convert Byte to Word (80x86 inst)
CBWV Call Busy Work Volume
CBX Computer-Based Exchange
CBX Computer-Controlled Branch Exchange
CBX Computerized Branch Exchange (PBX)
CBX Computerized Private Branch Exchange
cc C Compiler
CC C++ Compiler/Translator
CC Cable Connector
CC Call Center
CC Call Code
CC Call Configuration
CC Call Connect
CC Call Connected
CC Call Connected packet
CC Call Control
CC Call Control Entity
CC Calling Card
CC CAM Controller
CC Capability Complete
cc Carbon Copy
CC Card Column
CC Card Count
CC Carrier Connect
CC Carrier Current
CC Central Control
CC Central Controller
CC Channel Control information element
CC Channel Controller
CC Chip Carrier
cc Cicero
CC Clear Channel
CC Close-Captioned
CC Cluster Controller
CC Code Complete
CC Coin Collect
CC Coin Completing
CC Collect Call
CC Color Code
CC Command Chaining
CC Common Carrier
CC Common Control
CC Common Controller
CC Communication Computer
CC Communication Control
CC Company Code
CC Composite Call
CC Composite Clock
CC Computer Center
CC Computing Center
CC Condition Code
CC Conference Calling
CC Congestion Control
CC Connection Confirm
CC Connection Control
CC Connection Coordinator
CC Continuity Cell
CC Control Channel
CC Control Component
CC Control Console
CC Convolutional Code
CC Coordinating Commitee
CC Coordination Center
CC Cost Component
CC Countdown Counter
CC Country Code
CC Cross Connection
CC Cross-Connect
CC Crystal Controlled
CC Cursor Control
CC Cyclic Check
CC ISO country code for Cocos (Keeling) Islands
CC/OR Coin Collect/Operator Released
CC1 Calling Card- Type 1
CC1 CAM Controller, Type 1
CC2 Calling Card- Type 2
CC2 CAM Controller, Type 2
CCA Call Classification Analysis
CCA Call Control Agent (typically a terminal equipment)
CCA Carrier Central Agent
CCA CENELEC Certification Agreement
CCA Circuit Card Assembly
CCA Clear Channel Assessment
CCA Communication Channel Adapter
CCA Conceptual Communication Area (OSI)
CCA Control Channel Acquisition
CCAF Call Control Agent Function
CCAF Call Control Agent Functional Entity
CCAF Cluster Control Agent Function
CCAF+ Call Control Agent Function Plus
CCAFr Call Control Agent Function (Radio)
CCAFR Customer Control of Automatic Flexible Routing
CCAN Calling Card Account Number
CCAN Credit Card Account Number
CCAP Communication Control Application Program
CCAS Call Control Application Services
CCB Call Condense Block
CCB Call Control Block
CCB Change Control Board
CCB Channel Command Block
CCB Channel Control Block
CCB Coin Collecting Box
CCB Command Control Block
CCB Common Carrier Bureau
ccb Communications Control Block
CCB Cyclic Check Byte
CCBQ Coordinated Call Back Queing
CCBS Call Completions to Busy Subscribers
CCBS Completion of Calls to Busy Subscriber (supplementary service)
CCBSi Completion of Calls to Busy Subscriber Call Indicator
CCC CDMA Cluster Controller
CCC Cenelec electronic Components Certification
CCC Central Control Complex
CCC Clear Channel Capability (T1 option to use full bandwidth with B8ZS coding)
CCC Coinless, Charge-a-Call
CCC Color Conversion Context
CCC Common Customer Code
CCC Communication Command and Control (communication control character)
CCC Corrective Content Complete
CCC Credit Card Calling
CCC Credit Card Control
CCC Custom Charge Calling
CCCD Conductively Connect Charge-coupled Device
CCCH Common Control Channel
CCCI Command, Control, Communication & Intelligence system (US Military)
CCCI Command, Control, Communications and Intelligence
CCCM Council Committee on Consumer Matters
CCCP Connection Control Protocol
CCD Central Control Disabled
CCD Charge-Coupled Device
CCD Class Communication Diagram
CCD Coin Collect Detect
CCDB Calling Card Database
CCDC Channel Compatible Digicipher
CCDN Corporate Consolidated Data Network
CCE Cannel Control Error
CCE Central Control Enabled
CCE Consistency Check End message
CCE Control Creation Edition
CCE Corporate Component Engineering
CCEA Consistency Check End Acknowledgement message
CCEL C++ Constraint Expression Language
CCEL Call Connection Elapsed Time Limitation
CCES Centrally Controlled Equaliser System
CCES Common Control Echo Suppressor
CCETT Centre Commun d'Etudes de Télédiffusion et de Télécommunications (France)
CCF Call Control Function
CCF Call Control Functional Entity
CCF Cluster Control Function
CCF Coin, Coin First
CCF Common Control Function
CCF Communications Control Field
CCF Complex Call Framework
CCF Conditional Call Forwarding
CCF Continuity Check Failure message
CCF Continuity-Failure signal
CCF Custom Calling Feature(s)
CCF+ Call Control Function Plus
CCFAC Customer Control of Facilities
CCFL Cold-Cathode Fluoresecent Lamp
CCFP Central Control Fixed Part
CCFP Common Control Fixed Part
CCFT Cold Cathode Fluorescent Tube
CCG Computer Communications Group
CCH Cancel Previous Character
CCH Comite Consultatif pour l'Harmonisation
CCH Common Control Channel
CCH Connections per Circuit per Hour
CCH Continuity Check Indicator
CCH Control Channel
CCH Coordination Committee on Harmonization
CCI Call Completion Internet
CCI CCITT and CCIR
CCI Common Client Interface
CCI Common Customer Identifier
CCI Computer Consoles Incorporated
CCI Concorde-to-Concorde Interface
CCI Conference Circuit Interconnection
CCI Continuity Check Incoming
CCIA Computer and Communication Industries Association
CCID Call Count- Information Delivered
CCIE Call Control Information Element
CCIF Call Control Interface
CCIF Comité Consultatif International Téléphonique
(International Telephone Consultative Committee)
CCIR Comité Consultatif International de Radiocommunications (now ITU-R)
CCIR Comite Consultatif International de Radiodiffusion
CCIR International Radio Consultative Committee (now ITU-R)
CCIR Internationaler Beratender Ausschub für das Funkwesen
CCIRN Coordinating Committee for International Research Networking
CCIS Common Channel Interoffice Signaling
CCIS6 Common Channel Interoffice Signaling System No. 6
CCIT International Telegraph Consultative Committee
CCITT Comité Consultatif International Télégraphique et Téléphonique
(International Consultative Committee for Telegraph and Telephone, now ITU-T)
CCIUG ClearCase International Users Group
CCKF Continuity ChecKtone Failure (SPADE)
CCKT Continuity Check Tone
CCL Calling Party Clear message
CCL Change Control Log
CCL Common Communication Link
CCL Comon Carrier Line
CCLC Carrier Common Line Charge
CCM Central Customer Manager
CCM Circuit Supervision Message
CCM Common Channel Signalling Module
CCM Common Control Module
CCM Communication Channel Management
CCM Complex Call Model
CCM Composite Call Model
CCM Connection Control Message
CCM Cross-Connect Multiplexor
CCM Current Call Meter
CCM Customer Configuration Management
CCM Customer Control and Management
CCM DMS-100 Common
CCMC Computer Communications Maintenance Center
CCMF Centralised Control and Monitoring Function
CCMIS Call Centre Management Information System
CCMP Call Completion
CCMP CC Message Processor
CCMP Credit Card Mobile Phone
CCN Calling Card Number
CCN Common Channel Network
CCN Contract Change Notice
CC-NDT Can't Call-No Dial Tone
CCNR Completion of Call No Reply (supplementary service)
CCNR Completion of Calls on No Reply
CC-NUMA Cache-Coherent NUMA
CCO Colorado Communications Operation
CCO Component Coordinator
CCO Continuity-Check Outgoing
CCODE Country Code
CCOFGQ Customer Control of Outgoing Facility Group Queuing
CCOM Coaxial Cable Organization Module
CCOV Code Coverage
CCP Calibrator Characteristic Parameter
CCP Capability/Configuration Parameter
CCP Character Control Protocol
CCP Communication Control Package
CCP Compression Control Protocol
CCP Connection Control Protocol
CCP Console Command Processor
CCP Content Check Point
CCP Credit Card Processor
CCPE Cabinetized Common Peripheral Equipment
CCPE Control Channel Protocol Entity
CCPU Call Count- Information Private/Unavailable
CCR Cable Control Room
CCR Call Charge Record
CCR Commitment, Concurrency, and Recovery
CCR Computer Controlled Retrieval
CCR Condition Code Register
CCR Consistency Check Request message
CCR Console Card Reader
CCR Continuity Check Request message
CCR Cumulative Charge Restriction
CCR Current Cell Rate
CCR Current Controlled Resistor
CCR Customer Controlled Reconfiguration
CCR Customer Controlled Routing
CCR Customized Code Restriction
CCRA Consistency Check Request Acknowledgement message
CCRA Continuity Check Request Acknowledgement message
CCR-PR Customized Call Routing with Private Network
CCR-PU Customized Call Routing with Public Network
CCRS Centrex Customer Rearrangement Service
CCRSE Commitment, Concurrency and Recovery Service Element
CCS 100 Call Seconds
CCS C Compilation System
CCS Calculus of Communicating Systems
CCS Calling Card Service
CCS Cent Call Seconds (36 CCS = 1 Erlang)
CCS Centi-Call Seconds
CCS Channel Change Status
CCS Chip Carrier Socket
CCS Common Channel Signaling
CCS Common Command Set
CCS Common Communications Subsystem
CCS Common Communications Support
CCS Common Control Style
CCS Connection Successful
CCS Continuous Color Sequence
CCS Continuous Composite Servo
CCS Cross Connect System
CCS Custom Calling Services
CCS Cutover Conversion Services
CCS#6 Common Channel Signaling System No. 6
CCS#7 Common Channel Signaling System No. 7
CCS/C Corporate Computer Systems C
CCS6 Common Channel Signaling System No. 6
CCS7 Common Channel Signaling System No. 7
CCSA Common Control Switching Arrangement
CCSA Common-Control-Switching Arrangement
CCSAN Calling Card Subaccount Number
CCSB Command Complete Status Block
CCSC Customer Changeable Speed Calling
CCSF Common Channel Signaling Failure
CCSL Compatible Current-Sinking Logic
CCSN Calling Card Service Node
CCSN Common Channel Signaling Network
CCSN Customer Contact Service Node
CCSNIS Common Channel Signaling Network Interface Specification
CCSS Common Chanel Signalling System
CCSSO Common Channel Signaling Switching Office
CCSUA Call Control Service User Application
CCT Call Classification Terminal
CCT Card Configuration Table
CCT Carrier Connect Time
CCT Carrier Current Transceiver
Cct Circuit
CCT Circuit
CCT CNMA Conformance Testing
CCT Complex Call Topology
CCT Computerized Communication Terminal
CCT Connection Type
CCT Consortium for Communication Testing (private)
CCT Consultative Committee on Telecommunications
CCT Continuity Check Transceiver
CCT Control Concentrator Terminal
CCT Cross Connect Type
CCTA Central Computer and Telecommunications Agency (UK)
CCTO Call Completion with Trunk Optimization
CCTS Comite de Coordination pour Telecommunications par Satellite (CEPT, obsolete)
CCTV Closed-Circuit Television
CCU Cable Control Unit
CCU Camera Control Unit
CCU Central Control Unit (FEP IBM)
CCU Communication Control Unit
CCU Controller Coax Unit
CCUG Canadian Centrex Users Group
CCUP Customer Communication Update Package
CCV Call Covering
CCV Calling Card Validation
CCV Charge Card Validation
CCV Credit Card Validation
CCW Cancel Call Waiting
CCW Channel Command Word
CCW Channel Control Word
CCW Counterclockwise
CCx CAM Controller, Type x
CCX Central Connection Control
CCX Central Connection Controller
CD Cache Disable
CD Call Deflection (supplementary service)
CD Call Disposition
CD Call Distribution
CD Call Distributor
cd candela
CD Card
CD Carrier Detect (signal)
CD Circle Digit
CD Circuit Description
CD Code Diversion
CD Code Division
CD Collision Detection
CD Command Data
CD Command Dictionary
CD Committee Document
CD Committee Draft (former DP)
CD Compact Disk
CD Component Description
CD Computer Design (periodical)
CD Count-Down
CD Critical Dimension
CD ROM Compact Disc Read-Only Memory
CD0 Clocked Data Zero
CD1 Clocked Data One
CDA Call Data Accumulator
CDA Call Deflection Alerting
CDA Call Delivery Activatable
CDA Call Disposition Analyzer
CDA Call Distribution to Attendant (supplementary service)
CDA Call Diversion to Announcement
CDA Call Duration Advice
CDA CD Audio Track file
CDA Coin Detection and Announcement
CDA Command and Data Acquisition
CDA Communications Decency Act
CDA Compound Document Architecture (DEC)
CDA Computer Drafting Aid system
CDA Customer Data Access
CD-A Audio Compact Disc
CDAA Call Deflection After Answer
CDAA Concurrent Data Access Architecture
CDAL Control and Diagnostic Access Link
CDAM Committee Draft Amendment
CDAR Customer Dialed Account Recording
CDB Call Data Block
CDB Call Diversion on Busy
CDB Channel Data Byte
CDB Class Descriptor Block
CDB Command Database
CDB Command Descriptor Block
CDB Common Data Base
CDB Communications Device Buffer
CDB Component Data Base
CDB Configuration Data Base
CDBM Call Data Block Manager
CDC Call Direct Code
CDC Call Directing Character
CDC Call Directing Code
CDC Central Distribution Center
CDC Certificate Distribution Center
CDC Characteristic Distortion Compensation
CDC Coin Detection Circuit
CDC Command Document Continue
CDC Conditioned Diphase Code
CDC Control Data Corporation
CDC Control Delay Channel
CDC Customer Data Change
CDCCP CDC Control Data Procedure (CDC)
CDCCP Control Data Communications Control Procedure
CDCL Code Calling
CDCL Command Document Capability List
CDCS Continuous Dynamic Channel Selection
CDD Client Device Driver
CD-DA Compact Disk-Digital Audio
CDDI Cable Distributed Data Interface
CDDI Copper Distributed Data Interface
CDDI FDDI-over-Copper
CDE Common Desktop Environment
CDE Customer Design Engineering
CDE Exclude Intragroup Calls from Call Forwarding
CD-E Compaft Disk-Erasable
CDET Charge Determination
CDF Call Diversion Fixed
CDF Carrier Distribution Frame
CDF Channel Definition Format
CDF Coin, Dial-Tone First
CDF Combined Distribution Frame
CDF Communications Data Field
CDF Context-Dependent File
CDF Cumulative Distribution Function
CDF Cutoff Decrease Factor
CDF Cyberspace Description Format
CDFI Cabinetized Direct Fiber Interface
CDFL Capacitive Diode Field-effect transistor Logic
CDFS CD-ROM File System
CDFS Compact Disk File System
CDG Call Delivery Global
CDG CDMA Development Group
CDG Corporate Design Group
CDH Cooperative Document Handling
CDI Call Detail Information
CDI Call Forward Do Not Answer Intragroup
CDI Called Line Identity
CDI Change Direction Indicator (SNA)
CDI Collector-Diffused Isolation
CDI Compact Disc Interactive
CDI Concentrating DASS2 Interface
CDI Conventional Defence Initiative
CDI Copper Distribution Interface
CDI Interactive Compact Disk
CD-I Compact Disk- Interactive
CD-I Interactive Compact Disc
CDIP Ceramic Dual In-line Package (IC)
CDIS Cable Data Instrumentation System
CDIV Call Diversion
CDK Control Development Kit
CDL Carrier Detect Level
CDL Comite De Lecture
CDL Component Description Language
CDL Computer Description/Design Language
CDL Customer Defined Location
CDLC Cellular Data Link Control
CDLI Called LATA Identity
CDLI Called Line Identity
CDLN Called Line Number
CDLN Cornerstone Distance Learning Network
CDM Class Data Manager
CDM Code Division Multiplexing
CDM Common Domain Model
CDM Companded Delta Modulation
CDM Conceptual Data Model
CDM Configuration Data Management
CDM Configuration Data Manager
CDM Consumer Digital Modem
CDM Curo Document Manager
CDM Customer Data Modification
CDMA Code Division Multiple Access (spread spectrum)
CDME Composite Downstream Mapping Element
CDMR Call Detail Maintenance Record
CDMS Cluster Data Management System
CDN Cable Data Network
CDN Call Processing Database Node
CDN Called Party Number
CDN Change Directory Number
CDN Control Directory Number
CDN Customer Defined Network
CDNA Call Diversion No Answer
CDNI Cabinetized Digital Network Interconnect
CDO Call Diversion to Operator
CDO Community Dial Office
CDO Connect Data Overflow
CDOC Customer Documentation
CDOS Customer Dialed Operator Service
CDOS Customer Dialed, Operator Serviced
CDP Cache Data Port
CDP Communications Data Processor
CDP Component Development Plan
CDP Coordinated Dialing Plan
CDP Custom Dialing Plan Trigger
CDP Customized Dialing Plan
CDP0 Cache Data Port Register 0
CDP1 Cache Data Port Register 1
CDP2 Cache Data Port Register 2
CDP3 Cache Data Port Register 3
CDPA Called Party Address
CDPB Command Document Page Boundary
CDPD Cellular Digital Packet Data
CDPN Called Party Number
CdPN Called Party Number
CdPNo Called Party Number
CDPR Card Pair
CDPR Customer Dial Pulse Receiver
CDPSAIT Called Party Subaddress Information Transfer
CDPSDBL1 Called Party Subaddress Delivery Billing Records (Intranetwork)
CDPSDBL1P Called Party Subaddress Delivery Billing Records (Intranetwork) for PRI
CDPSDBL2 Called Party Subaddress Delivery Billing Records (Internetwork)
CDPSDBL2P Called Party Subaddress Delivery Billing Records (Internetwork) for PRI
CdPSub Called Party Subaddress
CDQ Convert Doubleword to Quadword (80x86 inst)
CDR Call Detail Record
CDR Call Detail Recording
CDR Call Detail Reporting
CDR Common Data Rate
CDR Common Data Representation
CDR Connected Digit Recognition
CDR CorelDraw File
CDR Current Differential Relaying
CD-R Compact Disk-Recordable
CDRAM Cached DRAM
CDRC Call Detail Recording Call Entry
CDRE Call Detail Recording Extension Blocks
CDRM Cross-Domain Resource Manager
CDROM Compact Disk Read Only Memory
CD-ROM Compact Disc Read-Only Memory
CDRR Call Detail Recording and Reporting
CDRS Call Detail Recording Call Processing
CDRTOS Compact Disk Real Time Operating System
CD-RW Compact Disk-Rewritable
CdS Cadmium Sulfide
CDS Call Data Store
CDS Call Deflection Selection
CDS Call Diversion to Subscriber
CDS Called Party Subaddress
CDS Cell Directory Server
CDS Cell Directory Service
CDS Command Document Start
CDS Companion Diagnostic Software
CDS Current Directory Structure
CDSI Called State Identity
CDSIS Combined Discrete continuous SImulation System
CDSN Cabinetized Dual Shelf Network
CDST Called Party Station Type
CDT Call Data Transmitter
CDT Cambridge Display Technology
CDT Carrier Detect Threshold
CDT Carrier Dial Tone
CDT Center for Democracy and Technology
CDT Central Daylight Time
CDT Companion Deployment Tool
CDT Concrete Data Type
CDT Configuration Data Table
CDT Connectionless Data Transmission
CDT Control Data Terminal
CDT Credit
CDT Credit allocation (OSI-TL)
CDTE Cabinetized Digital Trunk Equipment
CDTV Conventional Definition Television
CD-TV Commodore Dynamic Total Vision
CDU Call Distribution Unit
CDU Call Forwarding Do Not Answer Unrestricted
CDU Central Display Unit
CDU Clock Distribution Unit
CDUR Chargeable Duration
CDV Call Deflection Variable
CDV Cell Delay Variation
CDV Compact Disk Video
CDV Constant Delay Value
CD-V Compact Disk-Video
CDVCC Coded Digital Verification Color Code
CDVM Call Diversion to Voice Mail
CDVT Cell Delay Variation Tolerance
CDW Call Delivery Wide
CD-WO Compact Disk Write-Once
CDX Compact Digital Exchange
CD-XA Compact Disc-Extended Architecture
CE Channel Element
CE Chip-Enable (signal)
CE Circuit Emulation
CE Collision Enforcement
CE Common Equipment
CE Communaute Europeenne (EC)
CE Compact Edition
CE Compute Engine
CE Conditioning Equipment
CE Congestion Encountered
CE Connectable Entity
CE Connection Element
CE Connection Endpoint
CE Conseil de l'Europe
CE Consumer Electronics
CE Control Element
CE Council of Europe
CE Customer Equipment
CE/PE Common Equipment/Peripheral Equipment
CE1 Compute Engine, Type 1
CE3 Control Equipment No. 3
CEA Canadian Electric Association
CEAC Commission Européenne de l'Aviation Civile
CEAC Committee for European Air-spaced Coordination
CEB Comite Electrotechnique Belge (B)
CEBS Circuit Emulation Bearer Service
CEBUS Consumer Electronics BUS
CEbus Consumer Electronics Bus
CEC Canadian Electrical Code
CEC Cell Error Check
CEC Commission des Communautés Européennes
CEC Commission of the European Communities (no longer exists, replaced by EC)
CEC Commission of the European Community
CECB Connection Endpoint Control Block
CECC Cenelec Electronic Components Committee/ies
CECUA Confederation of European Computer Users Association
CED CallEd station identification
CED Called Station Identifier
CED Capacitive Electronic Disk
CEDI Conditional End bracket inDIcator (SNA)
CEDL Compiled Encapsulator Description Language
CEE Call Extension Element
CEE Communauté Economique Européenne
CEE Conformity certification of Electrical Equipment
CEF Cable Entrance Facility
CEFIC Consiglio Europeo delle Federazioni delle Industrie Chimiche
CEG Cause Effect Graphing
CEG Continuous-Edge Graphics
CEI Call Establishment Information
CEI Comitato Elettrotecnico Italiano
CEI Comparably Efficient Interconnect
CEI Comparably Efficient Interconnection
CEI Connection Element Identifier
CEI Connection Endpoint Identifier
CEI Connection End-point Identifier (OSI)
CELL Cellular
CELLTREX Cellular Telephone Radio Exchange
CELP Code Excitation Linear Prediction
CELP Code Excited Linear Prediction
CELP Code-Excited Linear Predictive Coding
CELP+ Enhanced CELP
CE-LPC Code Excited Linear Predictive Coding
CELTIC Concentrateur Exploitant Les Temps d'Inactivite des Circuits
CEM Cellular Equipment Manager
CEM Centro Esercizio e Manutenzione (Italian switching operations system)
CEM Common Equipment Module
CEMA Canadian Electrical Manufacturers Association
CEMA Consumer Electronics Manufacturing Association
CEMEC Committee of European associations of Manufacturers of Electronic Components
CEMF Counter Electromotive Force
CEMT Conference Europeenne de Ministres des Transports
CEN Comité Européen de Normalisation
CEN Comité Européen pour la Normalisation
CEN European Committee for Standardization
CENCER CEN Certification
CENELEC Comité Européen de Normalisation Electrotechnique
CENELEC Comité Européen pour la Normalisation Electrotechnique
CENELEC European Committe for Electrotechnical Standardization
CENTAURE Centre d'Assistance aux Utilisateurs du Reseau (Cognitech)
CENTRACS Centrex Trouble Reporting Analysis Control System
CENTREX Centralized Exchange
Centrex Centralized Exchange
CEO Chief Executive Officer
CEO Chief Executive Officer (US)
CEO Comprehensive Electronic Office
CEP Cepstral Data
CEP Connection End Point
CEPR Common Employee Password Registry
CEPR Corporate Employee Password Registry
CEPR Corporate Employee Password Repository
CEPT Conférence Européenne des Administrations des Postes et des Télécommunications
(European Conference of Postal and Telecommunications Administrations)
CEPT Conference Européenne des Postes et Télécommunications
(European Conference of Postal and Telecommunications)
CEQ Customer Equipment
CER Call Event Record
CER Call Event Recording
CER Canonical Encoding Rules
CER Cell Error Ratio
CER Character Error Ratio
CERD Comite Europeen pour la Recherche et la Developement
CERDIP Ceramic Dual In-line Package
CERF California Education and Research Foundation
CERN Centre Européen de Recherche Nucleaire
CERN Centre Européen pour la Recherche Nucleaire
CERN Conseil Europeen pour la Recherche Nucleaire
cerr C++ Error Output Stream
CERT Computer Emergency Response Team
CERTICO ISO Council Committee on CERTification
CERTS COS On-Line Error Reporting and Tracking System
CES Captive Engineering Services
CES Carrier Entity Set
CES Circuit Emulated Services
CES Circuit Emulation Service
CES Coast Earth Station
CES Comite Electrotechnique Suisse
CES Connection Endpoint Suffix
CES Consumer Electronics Show
CESA Canadian Engineering Standards Association
CESAC CCIS Electronic Switching Systems Assistance Center
CESD Composite External Symbol Dictionary
CESE Capability Exchange Signalling Entity
CESG Communication and Electronic Security Group (UK)
CESI China Electronics Standardization Institute
CESID Caller's Emergency Service Identification
CES-IS Circuit Emulation Service Interoperability Specification
CESS Coax Elimination and Switching System
CETBDN Continue Existing Treatment Returned to Base DN
CEU Common Equipment Unit
CEU Continuing Education Unit
CEU DMS-100 Europe
CEV Controlled Environment Vault
CEx Compute Engine, Type x
CEXT Cabinetized Extension Module
CF Call Forwarding (supplementary service)
CF Carry Flag
CF Clipboard Format
CF Coin First
CF CompactFlash
CF Compact-Flash
CF Content Freeze
CF Contention-Free
CF Control Function
CF Convergence Function
CF Conversion Facility
CF Coordination Function
CF Crest Factor
Cf feeding Capacitor
CF Higher layer signalling channel (fast)
CF ISO country code for Central African Republic
CF2BECC Call Forwarding Busy 2, Establish Courtesy Call
CF3P 3-Port Conference Circuit
CFA Call Forward Allowed
CFA Capital Funds Appropriation
CFA Carrier Facility Assignment
CFA Carrier Failure Alarm
CFA-BC Concurrent Features Activation with Bi-Control
CFAC Call Forward All Calls
CFAC Call Forwarding Access Code
CFAR Constant False Alarm Rate
CFB Call Forward Busy
CFB Call Forwarding Busy (supplementary service)
CFB Cipher Feedback
CFB2ACC Call Forwarding Busy Line 2 Access Code
CFB2MFL Call Forwarding Busy 2, Multiple Forwarding Limit
CFB2RCR Call Forwarding Busy 2 Remote Code Restriction
CFB2RING Call Forwarding Busy 2, Reminder Notification Suppression
CFB2RNP Call Forwarding Busy Line 2, Redirecting Party Number Presentation
CFBACC Call Forwarding Busy Line Access Code
CFBCAC Call Forwarding Busy Customer Activation Control
CFBCC CFBL Customer Controlled
CFBECC Call Forwarding Busy, Establish Courtesy Call
CFBG Call Forward Busy Group
CFBGT Call Forward Busy Group Treatment
CFBILB Call Forwarding Busy Inhibit Line Busy
CFBIMB Call Forwarding Busy Inhibit Make Busy
CFBL Call Forward Busy Line
CFBL Call Forwarding Busy Line
CF-BL Call Forwarding- Busy Line
CFBL2 Call Forwarding Busy Line 2
CFBL2RC CFBL2 Restricted Control
CFBLILB Call Forwarding Busy Line-Inhibit Line Busy
CFBLIMB Call Forwarding Busy Line-Inhibit Make Busy
CFBLIO Call Forwarding Busy Line-Incoming Only
CFBLRC CFBL Restricted Control
CFBLRCAM CFBL Restricted Control for Analog Member of EKTS
CFBMBT Call Forwarding Busy Make Busy Treatment
CFBMFL Call Forwarding Busy Multiple Forwarding Limit
CFBRCR Call Forwarding Busy Remote Code Restriction
CFBRING Call Forwarding Busy Reminder Notification Suppression
CFBRMB Call Forwarding Busy Remote Make Busy
CFBRNP Call Forwarding Busy Line, Redirecting Party Number Presentation
CFC Call Forwarding Cancellation
CFC Chlorofluorocarbon
CFC Coin and Fee Check
CFC Coin and Fee Check message
CFC Conditional Call Forward
CFCW Call Forwarding of Call Waiting
CFD Call for Discussion
CFD Call Forward Denied
CFD Call Forward Don't Answer
CFD Call Forward No Answer
CFD Call Forwarding Do Not Answer
CFD Coin Free Dialing
CFD Computational Fluid Dynamics
CFD Connection Format Descriptor
CFD2ACC Call Forwarding Don't Answer 2, Access Code
CFD2ECC Call Forwarding Don't Answer 2, Establish Courtesy Call
CFD2MFL Call Forwarding Don't Answer 2, Multiple Forwarding Limit
CFD2RCR Call Forwarding Don't Answer 2, Remote Code Restriction
CFD2RING Call Forwarding Don't Answer 2, Reminder Notification Suppression
CFD2RNP Call Forwarding Don't Answer 2, Redirecting Party Number Presentation
CFDA Call Forward Don't Answer
CFDA Call Forwarding Don't Answer
CF-DA Call Forwarding- Don't Answer
CFDA2 Call Forwarding Don't Answer 2
CFDA2RC CFDA2 Restricted Control
CFDACC Call Forwarding Don't Answer Access Code
CFDAIO Call Forwarding-Don't Answer-Incoming Only
CFDAMA Combined Free/Demand Assignment Multiple Access
CFDARC CFDA Restricted Control
CFDARCAM CFDA Restricted Control for Analog Member of EKTS
CFDCAC Call Forwarding Don't Answer, Customer Activation Control
CFDCC Call Forwarding Don't Answer, Customer Controlled
CFDECC Call Forwarding Don't Answer, Establish Courtesy Call
CFDM Compounded Frequency Division Multiplex
CFDMFL Call Forwarding Don't Answer, Multiple Forwarding Limit
CFDRCR Call Forwarding Don't Answer, Remote Code Restriction
CFDRING Call Forwarding Don't Answer, Reminder Notification Suppression
CFDRNP Call Forwarding Don't Answer, Redirecting Party Number Presentation
CFDVT Call Forward Don't Answer Variable Timer
CFF Call Forward- Forwarding Party COS
CFF Call Forward, Fixed
CFF Call Forwarding Fixed
CFFP Call Forward Fraud Prevention
CFG Linker Configuration File
CFGB Configuration Control Block
CFGD Call Forward Group Don't Answer
CFGDA Call Forward Group, Don't Answer
CFGDA Call Forwarding Group, Don't Answer
CFGO Call Forwarding Group Only
CFGOI Call Forwarding Variable Group Only, Intra-Group Destination
CFI CAD Framework Initiative
CFI Call Failure Indication
CFI Call Forward Intragroup
CFI Call Forwarding Intragroup
CFI Channel Frame Interface
CFI Connection Failure Information
CFI Cross-Function Index
CFIA Component Failure Impact Analysis
CFIB Call Forwarding Interface Busy
CFIG Call Forwarding Intragroup
CFINT Call Forwarding Interval
CFIO Call Forwarding-Incoming Only
CFIOIG Call Forwarding Incoming Only, Intra Group Destination
CFIOO Call Forwarding Variable Incoming Only, Outside Group
CFK Call Forward Universal per Key
CFL Call Failure message
CFL Call Failure signal
CFL Carrier Fail
CFL Carrier Failure
CFL Communications Framework Library
CFLLR Call Forward Late-Late Release
CFLR Call Forward Late Release
CFM Code Fragment Manager
CFM Companding and Frequency Modulation
CFM Compounded Frequency Modulation
CFM Configuration Management
CFM Cubic Feet per Minute
CFMDN Call Forward MADN
CFML Cold Fusion Markup Language
CFN Call Forward- No Answer
CFN Call Forward Number
CFN Confusion message
CFNA Call Forward No Answer
CFNA Call Forwarding No Answer
CFNA-LR Call Forward No Answer-Late Release
CFNB Remote Directory Number for CFBL
CFNB2 Remote Directory Number for CFBL2
CFND Remote Directory Number for CFDA
CFND2 Remote Directory Number for CFDA2
CFNF Call Forwarding Not Found
CFNR Call Forwarding No Reply (supplementary service)
CFNRc Call Forwarding Not Reachable
CFNRy Call Forwarding No Reply
CFNRy Call Forwarding On No Reply
CFNV Remote Directory Number for CFV
CFO Call Forward- Originating Party COS
CFO Call Forwarding Outside
CFO Chief Financial Officer
CFO Contextual Feature Operator
CFO MDII: Open Trunk, After Start of Pulsing
CFP Call for Papers
CFP Call Forward Programming
CFP Channel Frame Processor
CFP Contention-Free Period
CFP Cordless Fixed Part
CFPE Call Forward Prevention Enhancements
CFPF Call Forwarding over Private Facilities
CFR Code of Federal Regulations
CFR ConFirmation to Receive
CFR MDII: Continuity Failure
CFRA Call Forward Remote Access
CFRA Call Forward Remote Activation
CFRA Call Forwarding- Remote Access
CFRES Call Forwarding Restrictions
CFS Call For Service signal
CFS Call Forward Simultaneous/Screening
CFS Call Forward Station
CFS Common Functional Specifications
CFS Conference Sizes
CFS Cross-Function Selector
CFS Cryptographic File System
CFS12 Conference Size 12
CFS12D Conference Size 12 With Drop
CFS18 Conference Size 18
CFS18D Conference Size 18 With Drop
CFS24 Conference Size 24
CFS24D Conference Size 24 With Drop
CFS3 Conference Size 3
CFS30 Conference Size 30
CFS30D Conference Size 30 With Drop
CFS3D Conference Size 3 With Drop
CFS6 Conference Size 6
CFS6D Conference Size 6 With Drop
CFSAM Conference Size for Analog Member of EKTS
CFSR Complete Feedback Shift Register
CFSR0 Channel Function Select Register 0
CFSR1 Channel Function Select Register 1
CFSR2 Channel Function Select Register 2
CFSR3 Channel Function Select Register 3
CFT Cold Fluorescent Tube
CFT Confirmation Tone
CFU Call Forward Universal
CFU Call Forwarding Unconditional (supplementary service)
CFU Call Forwarding Unconditional to a service center (supplementary service)
CFU Call Forwarding Universal
CFUB Call Forwarding on User Busy
CFUSD Call Forwarding Usage Sensitive Denial
CFUSP Call Forwarding Usage Sensitive Pricing
CFV Call For Votes
CFV Call Forward Validation
CFV Call Forwarding Variable
CFV2 Call Forwarding Variable 2
CFV2ACC Call Forwarding Variable 2, Access Code
CFV2ECC Call Forwarding Variable 2, Establish Courtesy Call
CFV2MFL Call Forwarding Variable 2, Multiple Forwarding Limit
CFV2RC CFV2 Restricted Control
CFV2RCR Call Forwarding Variable 2, Remote Code Restriction
CFV2RING Call Forwarding Variable 2, Reminder Notification Suppression
CFV2RNP Call Forwarding Variable 2, Redirecting Party Number Presentation
CFVAC Call Forwarding Variable, Active/Inactive Status
CFVACC Call Forwarding Variable, Access Code
CFVECC Call Forwarding Variable, Establish Courtesy Call
CFVMFL Call Forwarding Variable, Multiple Forwarding Limit
CFVRC CFV Restricted Control
CFVRCAM CFV Restricted Control for Analog Member of EKTS
CFVRCR Call Forwarding Variable, Remote Code Restriction
CFVRING Call Forwarding Variable, Reminder Notification Suppression
CFVRNP Call Forwarding Variable, Redirecting Party Number Presentation
CFVUS Call Forwarding Variable, Usage Sensitive
CFW Call Forward
CFW Call Forwarding
CFWC Call Forwarding, Cancel
CFWP Call Forwarding, Programming
CFWUSP Call Forward Usage Sensitive Pricing
CFWVAL Call Forward Validation
CFX Call Forwarding (Universal/Busy/Don't Answer)
CG Center of Gravity
CG Character Generator
CG Coast Guard
CG CodeGuard
CG Command Generator
CG Computer Generated
CG Computer Graphic
CG Connection Graph
CG Customer Group
CG ISO country code for People's Republic of the Congo
CGA Carrier Group Alarm
CGA Color Graphics Adapter
CGAP Call Gapping
CGB Circuit Group Blocking message
CGBA Circuit Group Blocking Acknowledgement message
CGC Circuit Group Congestion message
CGC Circuit Group Congestion signal
CGC Congestion Control
CGE Common Graphics Environment
CGE Compagnie Generale d'Electricite
CGH Chung, Graham, and Hwang
CGI Cell Global Identification
CGI Common Gateway Interface
CGI Computer Generated Imagery
CGI Computer Generations Inc.
CGI Computer Graphics Interface (former VDI, proposed standard protocol for GKS presentation)
CGLI Calling LATA Identity
CGLI CallinG Line Identification (functional entity)
CGLN Calling Line Number
CGM Circuit Group Supervision Message
CGM Computer Graphics Metafile (GKS image storage and transmission)
CGM Console Graphics Module
CGMAP CGM Application Profile (CGM)
CGMGDD CGM Generator Device Driver (CGM)
CGMIDD CGM Device Driver (CGM)
CGMIF CGM Interchange Format (CGM)
CGMP Cisco Group Management Protocol
CGN Calling Party Number
CGP Call Global Procedure
CGP Channel Group Processor
CGPA Calling Party Address
CgPC Calling Party Category
CGPN Calling Party Number
CGPN-NP Calling Party Number-Network Provided
CgPNo Calling Party Number
CGPSAIT Calling Party Subaddress Information Transfer
CGPSD Calling Party Subaddress Delivery
CGPSDBL1 Calling Party Subaddress Delivery and Redirecting Subaddress
Delivery Billing Records (Intranetwork)
CGPSDBL1P Calling Party Subaddress Delivery and Redirecting Subaddress
Delivery Billing Records (Intranetwork) for PRI
CGPSDBL2 Calling Party Subaddress Delivery and Redirecting Subaddress
Delivery Billing Records (Internetwork)
CGPSDBL2P Calling Party Subaddress Delivery and Redirecting Subaddress
Delivery Billing Records (Internetwork) for PRI
CGRP Circuit Group
CGRR Circuit Group Reset Reception
CGRS Circuit Group Reset Sending
CGS Calling Party Subaddress
CGS Centimetre,Gram,Second (system of measurement)
CGS Continuous-Grain Silicon
CGSA Cellular Geographic Service Area
CGSB Canadian General Standards Board
CGSET Circuit Group Set
CGSI Calling State Identity
CGSMTi Circuit Group Supervision Message Type Indicator
CGU Circuit Group Unblocking message
CGUA Circuit Group Unblocking Acknowledgement message
CG-VDI Computer Graphics Virtual Device Interface
CGW Cellular Gateway
CGW Computer Graphics World (periodical)
CH Call History
CH Call Hold
CH Can't Hear
CH Cell Header
CH Channel
CH CHaracter
CH Connection Handle
CH Consultation Hold
CH Count Register High Half
ch Internet country code for Switzerland
CH ISO country code for Swiss Confederation (Switzerland)
CHA Call Hold with Announcement
CHA Change
CHA Cursor Horizontal Absolute
CHAN Channel
CHAN CHAnnel Number
CHAN Channel Number Register
CHAP Challenge-Handshake Authentication Protocol
CHAP Challenge-Handshake Authorization Protocol
CHAPH Change Packet Handler Parameters
CHAR Character Information Element
CHAS CHip Assembler
CHB Call Handler Block
CHB Call Header Block
CHB Class Hierarchy Browser
CHD Call Hold
CHDAM Call Hold for Analog Member of EKTS
CHDB Compatible High Density Bipolar
CHDBR Call Hold B-Channel Reservation
CHDBR Call Hold Release B-Channel Reservation
CHDBREL Call Hold B-Channel Reservation Release
CHDN Call Hold Notification to Held Party
CHDN Change Hunt Directory Number
CHF Change Feature Information
CHF Swiss Franc(s)
CHG Change
CHG Change Translation/Routing Information
CHG Charge
CHG Charge message
CHG Charge Number
CHG Charging
CHG Charging Information message
CHG Charging message
CHG Class Hierarchy Graph
CHGE Charging Extended message
CHGEA Charging Extended Acknowledgement message
CHGI Charging Information
ChgPID Charged Party Information
CHI Computer-Human Interaction
CHI Computer-Human Interface(s)
CHILL ITU-T High Level Language
CHINT Charge Injection Transistor
ChIP Chunk Integration Point
CHIP Constraint Handling in Prolog
CHIPS Call History Information Process System
CHL Change List
CHM Changeover and Changeback messages
ChM Channel Manager
CHM CHannel Marker bit pattern
CHMF CHannel Marker bit pattern sent by cordless Fixed part
CHMOS High-Performance CMOS
CHMP CHannel Marker bit Pattern sent by CPP
CHN Change
CHN Charge Number
CHNBR Charge Number
CHNL Channel
CHNLTYP Channel Type
CHP Charging Point
CHPS CHaracters Per Second
CHRP Common Hardware Reference Platform
CHS Cylinder Head Selector
CHS Cylinder, Head, and Sector
CHST Charged Party Station Type
CHT Call History Table
CHT Call Hold and Trace
CHT Call Holding Time
CHT Charging Treatment For Origination
CHT Cursor Horizontal Tab
CHU CHannel Unit
CHV Card Holder Verification
CI Cache Inhibit
CI Call Identities
CI Capability Indicator
CI Carrier Interconnect
CI Cell Identity
CI Cell Insertion
CI Chain Index
CI Changeover Indicator
CI Circular Hunt
CI Code Inspections
CI Command Identifier
CI Command Increment
CI Command Interface
CI Command Interpreter
CI Common Interface
CI Competitive Intelligence
CI Complete Indicator
CI Component Interface
CI Components Integration
CI Congestion Indication
CI Congestion Indicator
CI Connection Identifier
CI Continuity Indicator(s)
CI Continuity Information
CI Continuous Improvement
CI Control In
CI Control Interface
CI Creation Initiation
CI Critical Indicator
CI CUG Index
CI Customer Information
CI Customer Input
CI Customer Installation
CI Customer Interface
CI ISO country code for Republic of the Ivory Coast
CI II Computer Inquiry II
CIA Central Intelligence Agency
CIA Channel Interface Adapter
CIA Computer Installation Assistance
CIA Current Instruction Address
CIAC Computer Incident Advisory Capability
CIB Card Information Base
CIB Centralized Intercept Bureau
CIB Change Implementation Board
CIB Class Information Block
CIB CRC32 Identification Bit
CIBER Cellular Inter-carrier Billing Exchange Record
CIC Carrier Identification Code
CIC Classification Information Center
CIC Codec Identity Code
CIC Common Interface Circuit
CIC Contention for Incoming Calls
CIC Customer Information Center (AT&T)
CIC Customer Initiated Call
CICA Chengdu Institute of Computer Application (China)
CICATS Computer Industry Coalition for Advanced Television Service
CICP Change Intercept
CICR Cancel In-Chain Return
CICS Compact Integrated Communications System
CICS Customer Information Control System (IBM)
CID Call Instance Data
CID Caller Identification
CID Calling Address Identification
CID Calling Address Identifier
CID Channel Identification
CID Channel Identifier
CID Character Identification
CID Charge Injection Device (= optoelectronic sensor)
CID Communication Identifier
CID Communications ID
CID Conference Identifier
CID Configuration, Installation, and Distribution
CID Connection Identification
CID Content Identifier
CID Craft Interface Device
CID Customer ID
CID Customer Identifier
CID Customer Information Development
CID Customer Interactive Dialing
CIDB Corporate Images Database
CIDC Cabinetized International Digital Controller
CIDCW Caller ID with Call Waiting
CIDCW Caller Identification on Call Waiting
CIDCW Calling Identity Delivery On Call Waiting
CIDFP Call Instance Data Field Pointer
CIDN Customer International Data Number
CIDR Classless Interdomain Routing
CIDS Calling Identification Delivery and Suppression
CIDS Calling Identity Delivery and Suppression
CIDSACC Calling Identity Delivery and Suppression Access Codes
CIDSBL CIDS Billing Records
CIDSDLV Calling Identity Delivery
CIDSSUP Calling Identity Suppression
CIDST(1) Comite de l'Information et de la Documentation Scientifique et Technique
CIE Commission Internationale de L'Eclairage
CIE Commission Internationale L'Eclairage
CIE Committee Internationale de l'Eclairage
CIEC Citizens Internet Empowerment Coalition
CIEE Chinese Institute of Electrical Engineers
CIER Channel Interrupt Enable Register
CIF Caltech Interchange Format (CAE/CAD Systems)
CIF Caltech Intermediate Form
CIF Cells In Flight
CIF Cells in Frames
CIF Common Image Format
CIF Common Interchange Format
CIF Common Intermediate Format (Video)
CIF Controlled Interflow
CIFE Council of European Industrial FEderations
CIFF Camera Image File Format
CIFS Common Internet File System
CIG Calling subscriber Identification
CIG Cell Interconnection Gateway
CIG Cellular Infrastructure Group
CIGREF Club Informatique des Grandes Enterprises Francais
CIH Class Inheritance Hierarchy
CII Call Identity Index
CII Code for Information Interchange (FIPS)
CII Common Interoffice Interface
CII Continuing Industry Interaction
CII MDII: Initial Address Message Signaling Irregularity
CIID Card Issuer Identification Code
CIID Card Issuer Identifier
CIIL Control Intermediate Interface Language
CIL Call Information Locator
CIL Call Instruction List
CIL Communication Identification Line
CIL Compatible Issue Lineup
CIL Component Integration Laboratories
CILS CPE Industry Liaison Subcommittee
CIM Common Information Model
CIM Compaq, Intel, and Microsoft
CIM CompuServe Information Manager
CIM Computer Integrated Manufacturing
CIM Corporate Information Model
CIM Cryptographic Information Management
CIM Curo Image Manager
CIM Customer Information Management
CIMAP Circuit Identification Maintenance Administration Position
CIME Customer Installation Maintenance Entity
CIMECO Centro Italiano Metodologie di Controllo
CIMF Customer Installation Management Function
CIMIT Crescendo IPC Messaging Interface Tool
CIMOM Common Information Model Object Manager
CIMS Computer Integrated Manufacturing System
cin C++ Input Stream
CIN Customer Identification Number
CINFO Compiler Information
CIO Channel Input/Output
CIO Chief Information Officer
CIO Counter/Timer and Parallel I/O
CIOA Classical IP over ATM
CIOE Cabinetized Input/Output Equipment
CIP Carrier Identification Parameter
CIP C-Bus Interface Paddle Board
CIP CDMA Interface Peripheral
cip Central Interested Party
CIP Classical IP
CIP Classifier Interface Program
CIP Command Interpreter Preprocessor
CIP Command Interpreter Prompting
CIP Common Image Part
CIP Continuous Improvement Program
CIP Critical Indicator Panel
CIP Customer Interaction Program
CIPE Cabinetized International Peripheral Equipment
CIPOA Classical IP over ATM
CIPSO Commercial IPSO
CIPX Compressing IPX
CIR Calling Line Identity Request Signal
CIR Carrier-to-Interference Ratio
CIR Channel-to-Interference Ratio
CIR Circular
CIR Circular Hunt(ing)
CIR Clock Interrupt Register
CIR Committed Information Rate
CIR Coprocessor Interface Register
CIRC Cross Interleave Reed-solomon Code (Compact Disk)
CIRF Co-channel Interference Reduction Factor
CIRM Comité International Radio-Maritime
CIS Card Information Structure
CIS CDMA Interconnect System
CIS Center for Integrated Systems
CIS Commonwealth of Independent States
CIS Communications Interim Standard
CIS CompuServe Information Service
CIS Computer and Information Science
CIS Computing and Information Science
CIS Contact Image Sensor
CIS Content Information System
CIS Creation Interface Selection
CISC Complete Instruction Set Computer
CISC Complex Instruction Set Computer
CISC Complex Instruction Set Computing
CISG Change ISDN Service Group
CISM Cabinetized Integrated Services Module
CISPR Comite International Special des Perturbations Radioelectrique (in IEC)
CISPR Comite International Special des Peturbations Radioelectriques
CISPR International Special Committee on Radio Interference
CISPR International Special Committee on Radio Interference (in IEC)
CISPR Internationaler Sonderausschuß für Funkstörungen (im IEC)
CISR Channel Interrupt Status Register
CISS Call-Independent Supplementary Services
CIT Committee for Innovation and Technology transfer
CIT Compagnie Industrielle des Telecommunications
CIT Computer Integrated Telephony
CIT Craft Interface Terminal
CITE Citation (HTML tag)
CITEL Comison Interamericana de Telecommunicaciones
CITEL Inter-American Telecommunications Commission
CIU CDMA Interface Unit
CIU Cellular Controller Interface Unit
CIU Complete Interface Unit
CIU Control and Indication Unit
CIU Craft Interface Unit
CIUG California ISDN Users Group
CIV Cell Interarrival Variation
CIV Conversation Interface Verb (LU6.2)
CIW Call Information Window
CIW Container Identification Word
CIX Commercial Internet Exchange
CIX Compulink Information Exchange
CJ Coin Junctor
CJ Committee of Justice (EEC)
CJK Chinese, Japanese, and Korean
CJK-JRG Chinese/Japanese/Korean Joint Research Group
CK Check Bit
CK Check Bits
CK Cipher Key
CK Ciphering Key
CK ISO country code for Cook Islands
CKD Count Key Data
CKD Count, Key, Data
CKE Commercial Key Escrow
CKEY Encrypted KEY
CKF MDII: Continuity Check Failure
CKLN Change Keyset LEN
CKO Checking Operator
CKR Commercial Key Recovery
CKSN Cipher Key Sequence Number
CKSN Ciphering Key Sequence Number
CKT Circuit
CKT-ID Circuit Identification
CL Call Leg
CL Cathodeluminescence
CL Cell Loss
CL Circuit Layout
CL Claim
CL Computer Language (periodical)
CL Congestion Level
CL Connectionless
CL Control Leader
CL Count Register Low Half
CL Cutter Location
CL ISO country code for Republic of Chile
CL1 Congestion Level 1
CL2 Congestion Level 2
CL3 Congestion Level 3
CLA Carrier Local Agent
CLA Carry Look-Ahead
CLA Competitive Local Access
CLAM Coin Line Activity Monitoring
CLAMN Called Line Address Modification Notification
CLAMN Called Line Address Modified Notification
CLAN Connectionless Local Area Network
CLAN Cordless Local Area Network
CLANS Cordless Local Area NetworkS
CLASP CLASS Plus
CLASS Crisp and Linguistic Analysis of Structured Scenarios
CLASS Custom Local Area Signaling Services
CLASS Custom Local Area Signalling Services
CLAT Communication Line Adapter for Teletype
CLB Clear Back
CLB CLear-Back signal
CLB Corel Library File
CLBW Closed-Loop BandWidth
CLC Carrier Liaison Committee
CLC CeneLeC
CLC Corporate Lab Council
CLCD Clear Confirmation Delay
CLCE Cabinetized Line Concentrating Equipment
CLCSE Close Logical Channel Signalling Entity
CLD Called
CLD Called Number
CLD Called Party
CLD Collected Digits
CLDM Corporate Logic Data Model
CLDN Calling Line Directory Number
CLDS Connectionless Data Service
CLDT Common Language Datatypes
CLE Customer Located Equipment
CLEC Competitive Local Exchange Carrier
CLEI Common Language Equipment Identification
CLEI Common Language Equipment Identifier
CLEO Common Language Equipment Order
CLF Calling Line Flash
CLF Calling Line Identification On Flash
CLF Calling Line Identity by Flash
CLF Carrier Line Failure
CLF Clear Forward message
CLF Clear-Forward signal
CLF Common Log Format
CLF Higher layer connectionless channel (fast)
CLFI Common Language Facility Identifier
CLG Calling
CLG Calling Number
CLG Calling Party
CLGE Cabinetized Line Group Equipment
CLHR Cache, Line-Holding Register
CLI Callable Level Interface
CLI Calling Line Identification
CLI Calling Line Identifier
CLI Calling Line Identity
CLI Calling Line Information
CLI Call-Level Interface
CLI CLear Indication
CLI Clear Interrupt
CLI CLear Interrupt mask
CLI Command Line Interface
CLI Command Line Interpreter
CLI Compression Labs Inc.
CLID Calling Line Identification
CLID Calling Line Identification Display
CLID Calling Line Identity Delivery
CLIF Calling Line Identification with Flash
CLIM Cabinetized Link Interface Module
CLIP Calling Line Identification Presentation (supplementary service)
CLIP Calling Line Identity Presentation
CLIP Cellular Logic Image Processor
CLIR Calling Line Identification Restriction (supplementary service)
CLIR Calling Line Identity Restriction
CLIST Command List
CLIST Commands List
CLK Clock
CLLCC Ceramic LeadLess Chip Carrier (IC Package)
CLLI Common Language Location Identification
CLLI Common Language Location Identifier
CLLM Consolidated Link Layer Management
CLM Career Limiting Move
CLM Congested-Link Method
CLMI ISDN Cabinetized Line Module
CLMS ConnectionLess Message Service
CLN Change LEN
CLNAP Connectionless Network Access Protocol
CLNE Customer Located Network Equipment
CLNI Connectionless Network Interface
CLNIP Connectionless Network Interface Protocol
CLNP Connectionless Network Protocol
CLNS Connectionless Network Services
CLNS ConnectionLess-mode Network Service
CLOAX Corrugated-Laminated Coaxial Cable
CLOG Call Logging
C-Log Call History log
CLONES Central Location On-Line Entry System
CLOS Common LISP Object System
CLP Cell Loss Priority
CLP Constraint Logic Programming
CLP Consultant Liaison Program
CLPID Called Party ID
CLR Cell Loss Rate
CLR Cell Loss Ratio
CLR Circuit Layout Record
CLR Clear
CLR Clear Call
CLR CLear Request
CLR Clock Recovery
CLR Combined Line and Recording
CLR Compensation Log Record
CLR Connectionless Routing
CLRC Circuit Layout Record Card
CLRD Clear Request Delay
CLRR Circuit Loudness Rating, Receive
CLRS Circuit Loudness Rating, Send
CLS Closed
CLS Combined Link Set
CLS Connectionless Server
CLS Connectionless Service
CLS higher layer ConnectionLess channel (Slow)
CLSF Connectionless Service Function
CLSI Custom Large-Scale Integration
CLSID Class ID
CLSID Class Identifier
CLSR Combined Link Set Routing
CLSUP Call Supervisor Key
CLTA Comite de Liaison des Telecommunications Trans-Atlantiques (CEPT)
CLTG Change Line Treatment Group
CLTP Connectionless Transport Protocol
CLTS Connectionless Transport Service
CLU Calling Line Identity Unavailable
CLU Network Cluster
CLUI Command-Line User Interface
CLUT Color Lookup Table
CLV Constant Linear Velocity
CLW ClassWizard file
CM Cable Modem
CM Calendar of Meetings (ETSI)
CM Call Memory
CM Call Model
CM Carrier Maintenance
cm Centimeter(s)
CM Chairmen's Meeting (ETSI)
CM Class Manager
CM Class Mark
CM Common Memory
CM Common Mode
CM Communication Management
CM Communication Module
CM Communications
CM Component Manager
CM Computing Module
CM Conference Management
CM Configuration Management
CM Configuration Manager
CM Configuration Map
CM Connection Management
CM Connection Manager
CM Connection Memory
CM Continuity Message
CM Continuous Media
CM Control Memory
CM Correlated Message
CM ISO country code for United Republic of Cameroon
C-M Control-Monitor
CM OA Configuration Management Operations Application
CM2 Communication Module model 2
CM2C Communications Module 2 Compact
CMA Call Management Agent
CMA Changeover Memory Arbitration
CMA Communications Managers Association
CMA Constant Modulus Algorithm
CMA Construction and Maintenance Agreement
CMA Customized Announcement
CMAC Centralized Monitoring and Assistance Center
CMAC Complex Multiple ACcumulator (IBM)
CMAC Control Mobile Attenuation Code
CMAE Channel Management Application Entity
CMAK Connection Manager Administration Kit
CMAP Captive Office MAP
CMAP Centralized MAP
CM-API Consolidated Management Application Programming Interface
CMAS Cellular Management System
CMB Connection Maintenance Busy
CMB Connection Memory Block
CMB Cyclic redundancy check Message Block
CMBH Complex Instruction Buried Heterostructure
CMBO Combination of Flat Rate and Message Rate
CMBS Circuit Mode Bearer Service
CMC Cable Maintenance Center
CMC Call Modification Completed message
CMC Career Management Center
CMC Cellular Mobile Carrier
CMC Central Message Controller
CMC Centralized Management Center
CMC Coherent Multi-Channel Optical Communication
CMC Combining Multicast Control
CMC Common Mail Calls
CMC Common Messaging Calls
CMC Communication Management Configuration
CMC Communication Mode Control
CMC Communications Management Center
CMC CoMplement Carry
CMC Computer-Mediated Communication
CMC Connection Management Computer
CMC Connection Memory Controller
CMC Connectionless Message Control
CMCE Circuit Mode Control Entity (TETRA)
CMCF Control Multiple Call Forwarding
CMCU Communication Module Control Unit
CMD Circuit-Mode Data
CMD Command
CMDC Computing Module Duplex Cabinet
CMDF Combined Main Distribution Frame
CMDF Command Masking Data Facility
CMD-IS Circuit-Switched Mobile Data Intermediate System
CMDR Centralized Message Detail Recorder
CMDR CoMmanD Reject (HDLC, LAP)
CMDS Centralized Message Data System
CMDS Centralized Message Distribution System
CME Circuit Multiplication Equipment
CME Circuit Multiplication Equipment
CME Conformant Management Entity
CME Connection Management Entity
CM-ES Circuit-Switched Mobile End System
CMF Channel Matched Filter
CMF Class Manager Framework
CMF Compelled Multifrequency
CMF Control and Monitoring Function
CMF/PDB Capacity Management Facility Performance Data Base (SNA)
CMFJ Call Modification Reject message
CMgr Call Manager
CMHT Call Mean Hold Time
CMHTBLT Circuit Mode Hunt Terminal Busy Limit Type
CMI Cluster Member Identifier
CMI Code Management Interface
CMI Code Mark Inversion
CMI Coded Mark Inversion
CMI Coding Method Identifier
CMI Common Metallic Interface
CMI Computer Managed Instruction
CMI Control Mode Idle
CMI Cross-Matrix Index
CMIB Circuit Mode Intercom Calls Billing Records
CMIC Computing Module Interface Card
CMIM Common Management Information Model
CMIP Common Management Information Protocol
CMIPDU CMIP Data Unit
CMIPDU Common Management Information Protocol Data Unit
CMIPM CMIP Machine
CMIPM Common Management Information Protocol Machine
CMIS Cabinetized Miscellaneous Equipment Cabinet
CMIS Common Management Information Service
CMISE Common Management Information Service Element
CMIT Common Management Information Transmission
CML Cell Maximum Power Level
CML Chemical Markup Language
CML Chemical Multilayering
CML C-Side Message Link
CML Current Mode Logic
CMM Call Mode Modem
CMM Capability Maturity Model
CMM Channel Mode Modify
CMM Communications Memory Management
CMM Computer Main Memory
CMMU Cache/Memory Management Unit
CMN Communication of MCU Number
CMN Control and Maintenance Network
CMO Common Mode Operation
CMOA Configuration Management Operations Application
CMOL CMIP over LLC
CMOL CMIP Over Logical Link Control
CMOS Comparison Mean Opinion Score
CMOS Complementary Metal-Oxide Semiconductor
CMOT CMIP Over TCP/IP
CMOT Common Management Information Services Protocol Over TCP/IP
CMOT Common Management Over TCP
CMP Camp-On
CMP Channel Management Procedure
CMP Chemical-Mechanical Polishing
CMP Communications Module Processor
CMP Communications Plenum Cable
CMP Compare
CMP Component Portion
CMP Computing Module Processor
CMP Connection Management Protocol
CMP Continuous Multicast Push
CMPT Completion Tone
CMR Call Modification Request message
CMR Cell Misinsertion Rate
CMR Cell Misinsertion Ratio
CMR Cellular Mobile Radio
CMR Centralized Mail Remittance
CMR Channel Mode Register
CMR CLASS Modem Resource
CMR Common Mode Rejection
CMR Communications Riser Cable
CMRA Common Maintainable Resource Aggregate
CMRJ Call Modification Reject message
CMRR Common Mode Rejection Ratio
CMRS Cellular Mobile Radio System
CMRS Cellular Mobile Radio Telecommunications Service
CMRS Commercial Mobile Radio Services
CMRT Cellular Mobile Radio Telephone
CMS Call Management Services
CMS Call Management System
CMS Call Manager Service
CMS Cellular Mobile Switch
CMS Certification Mark Support
CMS Change Management System
CMS Circuit Maintenance System
CMS Circuit Multiplication System
CMS Code Management System
CMS Color Management System
CMS Combined Message Switch
CMS Connection Management Software
CMS Control and Measurement System
CMS Conversational Monitor System (IBM)
CMSA Consolidated Metropolitan Statistical Area
CMSDB Call Management Services Database
CMSDB Call Management System Database
CMSG "C" Message Weighting
CMSM Computing Module Summary
CMSO Centralized Mobile Switching Office
CMSS Cabinetized Miscellaneous Spares Storage
CMT Cadmium Mercury Telluride (IR Detector)
CMT Cartridge Magnetic Tape
CMT Character Mode Terminal
CMT Connection Maintenance
CMT Connection ManagemenT (FDDI)
CMT Correlated Message Traffic
CMTS Cellular Mobile Telephone System
CMTS Centralized Maintenance Test System
CMTS Connection Mode Transport Service (CMNS/CONS)
CMU Card Maintenance Unit
CMU Carnegie Mellon University
CMV Circuit-Mode Voice
CMV Common Mode Voltage
CMVC Configuration Management and Version Control
CMW Compartmented-Mode Workstation
CMWI CLASS Message Waiting Indication
CMWI CLASS Message Waiting Indicator
CMX Connection Memory Control
CMX Connection Memory Controller
CMX Corel Metafile Exchange
CMY Cyan, Magenta, Yellow
CMYK Cyan, Magenta, Yellow, Black
CN Cable Network
CN Calling Number
CN CaNcel
CN Check Not OK
CN Coin Trunk
CN Combined Delivery/Non-Delivery Notification
CN Complete Number
CN Congestion Notification
CN Connect
CN Connected Number
CN Core Node
CN Corporate Network(s)
CN Customer Network
CN ISDN Calling Number Identification Services
CN ISO country code for People's Republic of China
C-n Container-Level n
CNA Calling Number Announcement
CNA Cascaded Network Architecture (as opposed to BNA)
CNA Communication Network Architecture (ITT Inc.)
CNA Connection Not Active
CNA Connection Not Admitted message
CNA Cooperative Networking Architecture (Concert-BT)
CNA Customer Name and Address
CNA DMS-100 North America
CNAB Calling Name Delivery Blocking
CNAB Calling Name Delivery Blocking Toggle
CNABACC Calling Name Delivery Blocking Access Code
CNABBL Calling Name Delivery Blocking Billing Records
CNAC Call Not Accepted Treatment
CNAC CCIS Network Administration Center
CNAD Calling Name Delivery
CNAM Calling Name Delivery
CNAMAC Calling Name Delivery Active/Inactive Status
CNAMBL Calling Name Delivery Billing Records
CNAMD Calling Name Delivery
CNAMD Calling Name Display
CNAME Canonical Name
CNAMPN Calling Name Delivery with Personal Name Delivery Type
CNB Calling Number Blocking
CNB Consumer News and Business
CNC Centralised Network Control
CNC Computer Numeric Control
CNC Computer Numerical Control
CNC Computer Numerically Controlled
CNC Computer(ized) Numeric Control
CNCC Customer Network Control Center
CNCS Carrier Non-Compatible Services
CND Called Party Number
CND Calling Name Delivery
CND Calling Number Delivery
CND Calling Number Display
CND Calling Party Number Delivery
CND Carrier Networks Documentation
CND Customer Network Design
CNDA Calling Number Delivery Activation
CNDAC Calling Number Delivery Active/Inactive Status
CNDB Calling Number Delivery Blocking
CNDB Customer Number Data Base
CNDBO Calling Number Delivery Blocking Override
CNDBTYP Calling Party Number Delivery Blocking Type (Privacy Change Allowed)
CNDD Calling Number Delivery Deactivation
CNDS Customer Network Design System
CNDTYP Calling Party Number Delivery Type
CNE Certified NetWare Engineer
CNE Certified Novell Engineer
CNET Centre National d'Etudes des Telecommunications
CNET Control Network
CNF Conference
CNF Conjunctive Normal Form
CNF Station Controlled Conference
CNF6 Six-Way Conference Calling
CNFL Conference Calling, Larger Than Six-Way
CNFLSZ Conference Calling, Larger Than Six-Way, Size
CNG Calling Tone
CNG Carrier Networks Group
CNG Comfort Noise Generation
CNG Comfort Noise Generator
CNG Fax Calling Tone
CNI Calling Number Identification
CNI Changed Number Interception
CNI Common Network Interface
CNI Customer Premises Equipment Network Integrator
CNIBL Calling Number Information Delivery Billing Records
CNIBLP Calling Number Information Delivery Billing Records for PRI
CNIC Calling Number Identification Circuit
CNIC Clearing Network Identification Code
CNID Calling Number Identification
CNID Customer Network Information Database
CNIDR Clearinghouse for Networked Information Discovery and Retrieval
CNIL Conseil National Informatique et Liberte (F)
CNIMS Customer Network Integrated Management System
CNIP Calling Name Identification Presentation
CNIP Calling Number Identification Present
CNIPPAB Calling Number Identification Public-to-Private and
Private-to-Public Activation Billing Records
CNIPPABP Calling Number Identification Public-to-Private and
Private-to-Public Activation Billing Records for PRI
CNIR Calling Number Identification Restricted
CNIR Calling Number Identification Restriction
CNIR Calling/Connected Name Identification Restriction
CNIS Calling Number Identification Services
CNIS Computer Networks and ISDN Systems
CNL CoNnectionLess
CNL Constant Net Loss
CNL Cursor Next Line
CNM Called Number Mask
CNM Circuit Network Management Message Group
CNM Communication Network Management
CNM Communication Network Management (NetView, VTAM)
CNM Connection Memory
CNM Customer Network Management
CNMA Communication Network for Manufacturing Applications (MAP/MMS) (ESPRIT)
CNMC Corporate Network Management Center (CWAN-ATT)
CNMI Communication NM Interface (SNA)
CNMS Customer Network Management Services
CNN Cable News Network
CNNB Calling Name and Number Blocking
CNND Calling Name and Number Delivery
CNOS CCIS Network Operations System
CNP Charge Number Parameter
CNP Connection Not Possible
CNR Carrier-to-thermal Noise Ratio
CNR Complex Node Representation
CNR Could Not Reproduce
CNRI Corporation for National Research Initiatives
CNS Communication Network Service
CNS Communication Network Support
CNS Connected Party Subaddress
CNS Connection Not Successful
CNS Customer Network Solutions
CNS Customer Networking Solutions
CNSS Core Nodal Switching Subsystem
CNT Coaxial Network Termination
CNTX Centrex
CNU Coaxial Network Unit
CNV Conversion File
CO Call Offer (supplementary service)
CO Call Origination
CO Captive Office
CO Cavity Oscillator (microwaves)
CO Central Office
CO Certificate of Origin
CO Check OK
CO Circuit Order
CO Code Owner
CO Coin
CO Coinbox
CO Combining
CO Conditional Objective
CO COnnection
CO Connection Oriented
CO Connection-Oriented mode
CO Control Out
CO Crystal Oscillator
CO Cutoff
CO ISO country code for Republic of Colombia
CO U.S. postal code for Colorado
CO ID Company Identification
COA Changeover Acknowledgement message
CO-ACD Central Office-Automatic Call Distribution
COAM Centralized Operation, Administration, and Maintenance
COAM Customer Owned and Maintained
COAM Customer Owned And Maintained (equipment)
COARS Central Office Alarm Reporting System
COAX Coaxial Cable
COB Chip On Board
COB Close of Business
COB CO Booking
COB COBOL File
COB Complaint Observing
COBCLI CO Booking Command Line Interface
COBI Connection-Oriented Bearer-Independent
COBOL Common Business-Oriented Language
COBRAnet Corporate Broadband Applications Network
COBS Central Office Business Systems
COBS Consistent Overhead Byte Stuffing
COBUCO Cordless Business Communications
COC Central Office Code
COC Code Owners Consortium
COC Compiler Object Code
COC Consultation Calling
COC Current Operations Channel
COCF Connection Oriented Convergence Functions
COCF Connection-Oriented Convergence Function
COCOM Coordinating Committee for Multilateral Export Controls
COCOS Corporate Communication System
COCOT Customer-Owned Coin Operated Telephone
COCS Conversion of Created Services
COD Connection Oriented Data
COD Cross-Office Delay
COD Cutoff on Disconnect
CODACS Captive Office Digital Access Cross-connect System
CODAN Carrier-Operated Device, Anti-Noise
CODARTS Concurrent Design Approach for Real-Time Systems
CODASYL Conference On Data Systems Languages
CODC Central Office Data Collector
CODEC Coder/Decoder
CODES Central Office Data Engineering System
CODEST COmite de Development European de la Science et de la Technologie
CODETEL Compania Dominicana de Telefonos
CODIT Code Division Testbed
CODP Central Office Data Processor
CODS Connection Oriented Data Service
COE Central Office Equipment
COEES Central Office Equipment Engineering System
COEI Central Office Equipment Installation
COEM Commercial Original Equipment Manufacturer
COEO Central Office Equipment Order
COER Central Office Equipment Report
COF Cause of Failure
COF Cinema of the Future
COF Confusion signal
COF Continuity Failure
COF Cursor Off
COF MDII: Confusion Signal Received
COFA Change of Frame Alignment
COFDM Coded Orthogonal Frequency Division Multiplex
COFDM Coded Orthogonal Frequency Division Multiplexing
C-OFDM Convolutional coding OFDM
COFF Common Object code File Format
COFF Common Object File Format
COFIDEC Coder-Filter-Decoder
COG Central Office Ground
COG Centralized Operations Group
COG Code Owners Group
COH Common Overhead
COH Communication Overhead
COH Connection Overhead
COHO CoHerent Oscillator
COI Community of Interest
COI Connection-Oriented Interconnection
COIC Central Office Interface Circuit
COIN Coin Phone Operational and Information Network System
COKOL Corporate Knowledge On Line
COL Collect
COLA CO Lab Access
CO-LAN Central-Office LAN (BOC)
COLI COnnect Line Identity
COLI COnnected Line Identification (functional entity)
COLI Connected Line Identity
COLP COnnected Line identification Presentation (supplementary service)
COLR Carrier of Last Resort
COLR Circuit Order Layout Record
COLR Connected Line Identification Restriction
COLR COnnected Line identification Restriction (supplementary service)
COLT City of London Telecom
COLT Connection Optimized Link Technology
COM Cable Organizer Module
COM Central Office Maintenance
COM Combined Carrier
COM Comedy Central
COM Command
COM Command File
com Commercial organizations domain
COM Common
COM Common Object Model
COM COMmunication
COM Communications
COM Compact Executable file
COM COMplete
COM Complete
COM Component Object Model
COM Computer Output Microfilm
COM Computer Output Microfilming
CoM Connection Manager
COM Continuation of Message
COMA Cache-Only Memory Architecture
COMAC Comite d'Actions Concertees
COMAS Computerized Maintenance and Administration Support
COMB Combined
COMB Load Combined
COMDAT Common Data
COMDEX Computer Dealers Exposition
COMETT COMmunity programmme for Education and Training for Technology
COMFGD Combined Feature Group D
COMMS Central Office Maintenance Management System
COMMS-PM Central Office Maintenance Management System-Preventive Maintenance
COMPAC Commonwealth Pacific Cable submarine cable
COMPAC COMputer oriented PArt Coding
COMPASS Central Office Maintenance Printout Analysis (GTE)
COMPASS Communications Program for Advanced Switching Services
COMPASS Communications Programs for Advanced Switched Services
COMPENDEX COMPuterized ENgineering inDEX
COMPVH Compiler Virtual Hex (Test Case Language Compiler)
COMS Connection Oriented Message Service
COMSAT Communications Satellite Corporation
COMSEC Communications Security
COMSOC IEEE Communications Society
COMSOFT Consortium for the Management of Emerging Software Technologies
CON Call Connect
CON Concentrator
CON Conference Calling
CON Connect message
CON Connected Party Number
CON Connection Connected
CON Connection oriented
CON Conversation
CON Cursor On
CONCERT Communications for North Carolina Education, Research, and Technology
COND Conditional
CONF Conference Call, Add On (supplementary service)
CONF Conference Calling
CONF Conference Circuit
Conf Confirm
CONF Confirm
CONF Confirmation
CONF Confusion message
CONG Congestion
CONG Congestion message
CONI COnnect Number Identity
CONLAN CONsensus LANguage
CONMAN Connection Manager
CONN CONNect
CONN Connect message
CONN Connection
CONN Connection Manager
CONN Connector
CONN ACK Connect Acknowledge message
CONNACK CONNect ACKnowledgement
ConnND Connected Number Delivery
ConNo Connected Number
CONP COnnect Number identification Presentation
CONP Connection Not Possible Treatment
CONP Connection-Oriented Network Protocol
CONS Connection Oriented-mode Network Service
CONS Connection-Mode Network Service
CONS Connection-Oriented Network Services
CONS Console
CONT Connection Server
CONT Connections Team
CONT Continue
CONT Controller
CONUS Contiguous United States
CONV Conventional
COO Changeover Order message
COO Chief Operating Officer
COO Cost of Ownership
COOP Center for Object-Oriented Programming
COORS CO Ordering and Report System
COOTS Conference on Object-Oriented Technologies and Systems
COP Center of Projection
COP Character Oriented Protocol
COP Character-Orientated Protocol (Data Comm.)
COP Code Of Operation
COP Code Of Practice
COP Code of Practice
COP Complex Operations Parameters
COP Complicated Outpulsing
COP Computer Operating Property
COP Controller Oriented Processor
COP Control-Oriented Processor
COPES Customer Optimized Product Engineering System
COPOLCO ISO council COmmittee on COnsumer POLicy
COPQ Cost of Poor Quality
COPS Circuit Order Preparation System
COPS Complex Operations Per Second
COPS Cutover Preparation Services
COPT Customer Operated Pay Telephone
COPT Customer Owned Pay Telephone
COPWAT Customer-Owned Premises Wiring Acceptance Test
COQ Cost Of Quality
COR Carrier Operated Relay
COR CORrelator
Cor Corrigendum
COR Corrupt Parameter
CORA Call Rater
CORBA Common Object Request Broker Architecture
CORC Customer-Originated Recent Change
CORDIC Coordinate Rotation Digital Computer
CORDS Coordination of Record and Data Base System
CORE Internet Council of Registers
COREPER COmite des REpresentants PERmanents
CORP Career Opportunity Rotational Program
CORR Centralized Office Release Record
CORT Code Owner Request Tracking
CORUM Captive Office Remote User-area Menu
CORWAN Corporate Wide-Area Network
COS Call Origination Status
COS Camera Operating System
COS Class of Service
CoS Class of Service
COS Common Object Services
COS Communication OS
COS Connection Oriented Services
COS CORBA Object Services
COS Corporation for Open Systems
COSAC Canadian Open Systems Application Criteria
COSE Common Open Software Environment
COSE Common Open Systems Environment
COSINE Corporation for Open Systems Interconnection Networking in Europe
COSMIC Common Systems Main InterConnecting
COSMOS Computer System for Mainframe Operations
COSP Central Office Signaling Panel
COSPAR COmmittee on SPAce Research
COSS Central Office Switching System
COSS Common Object Service Specification
COSS1 Common Object Service Specification Volume 1
COSS2 Common Object Service Specification Volume 2
COSS3 Common Object Service Specification Volume 3
COSS4 Common Object Service Specification Volume 4
COSS5 Common Object Service Specification Volume 5
COST Class of Service Tone
COST Cooperations Projects of Scientific and Technical Research
COST European Cooperation in the Field of Science and Technology
COSTAR COmputer STored Ambulatory Record (Medical)
COSTAR Conventional On-line STorage And Retrieval
COSU Central Office Service Unit
COSW Electronic Switching: Central Office Systems of the World;
Amos E. Joel Jr.; IEEE Press, 1976
COT Central Office Terminal
COT Continuity
COT Continuity Check message
COT Continuity Message
COT Continuity Signal
COT Continuity Test
COT Continuity Test message
COT Continuity Test Transceiver
COT Continuity Testing
COT Customer Originated Trace
COTAC Customer Originated Trace Status
COTC Canadian Overseas Telecommunication Corporation
COTDR Coherent Optical Time Domain Reflectometer
COTES COnventional TErrestrial reference System
COTi Continuity Indicator
COTM Customer Owned and Telephone Company Maintained
COTP Connection-Oriented mode Transport Protocol
COTS Commercial Off-The-Shelf
COTS Connection-Oriented mode Transport Service
COTS Connection-Oriented Transport Service
COURT C.O. User Request Tracking
cout C++ Output Stream
COV Changeover
COV Changeover signal
COVER Captive Office Vintage Equipment Records
COW Copy On Write
CP Call Pickup
CP Call Process
CP Call Processing
CP Call Processor
CP Call Program
CP Card Punch
CP Central Processor
CP Choke Packet
CP Circuit Pack
CP Circular Polarization
CP Closed Pending
CP Code Page
CP Collision Presence
CP Common Part
CP Communication(s) Processor
CP Complete Partitioning
CP Confirmed Party
CP Connected Party
CP Connection Pending
CP Connection Performer
CP Connection Point
CP Connection Processor
CP Contention Period
CP Control Point
CP Control Processor
CP Control Program
CP Copy Protected
CP Critical Path
CP Current Product
CP Customer Premises
CP Customer Programmability
CP Customer Programmable
CP/M Control Program/Microcomputer
CP/M Control Programme for Microcomputers
CPA Called Party Address
CPA Carry-Propagate Adder
CPA Circuit Pack Assembly
CPA CLASS Protocol Analyzer
CPA Component Placement Agreement
CPA Control Point Adapter
CPA Co-Polar Attenuation
CPA Critical Path Analysis
CPAAL5 Common Part of AAL5
CPAD Call Processing Agency Driver
CPAN Comprehensive Perl Archive Network
CPAP Customer Premises Access Profile
CPARK Attendant Call Park
CPB Call Processing Busy
CPB Commercial Public Broadcasting
CPB Communication Processor Block
CPB Constrained Parameters Bitstream
CPB Corporation for Public Broadcasting
CPC Call Processing Control
CPC Calling Party Category
CPC Calling Party Control
CPC Carrier Portability Code
CPC Cell Personality Card
CPC Common Part Code
CPC Common Peripheral Controller
CPC Common Product Code
CPC Common Protocol Component
CPC Component Procurement Code
CPC Continuing Professional Competency
CPC Corporate Product Code
CPCCI Conference Permanente des Chambres de Commerce et d'Industrie
CPCE Common Peripheral Control Equipment
CPCH Calling Party Cannot Hear
CPCI Call Processing Control, Incoming
CPCI Calling Party Category Indicator
CPCI ISDN Common Peripheral Control
CPCL Call Processing Class Library
CPCO Call Processing Control, Outgoing
CPCS Common Part Convergence Sublayer
CPCS Customer-Provided Communication System
CPD Call Processing Deloading
CPD Call Processing Description
CPD Central Pulse Distributor
CPD Computer Products Division
CPD Connection Propagation Delay
CPD Cross Polar Discrimination
CPD Cumulative Probability Distribution
CPDC Cabinetized Power Distribution Center
CPDDN Calling Party Default DN(s)
CPDM Call Processing Domain Model
CPE Call Processing Enabled
CPE Central Processing Element
CPE Channel Parameter Estimator
CPE Customer Premises Equipment
CPE Customer Provided Equipment
CPEI ISDN Common Peripheral Equipment
CPF Coin, Pay First
CPF Convolutional, Parity, Fire
CPFC Cost Per Function Code
CPFR Calling Party Forced Release
CPFSK Continous-Phase Frequency Shift Keying
CPFSK Continuous Phase Frequency Shift Keying
CPFT Circuit-Pack Functional Test
CPFT Customer-Premises Facility Terminal
CPG Call Pickup Group
CPG Call Pickup Groups
CPG Call Processing Message
CPG Call Progress message
CPG Circuit Pack Group
CPG Clock Pulse Generator
CPG Code Page
CPG Conference Preparatory Group
CPG1 Call Pickup- Pickup Group 1
CPG2 Call Pickup- Pickup Group 2
CPG3 Call Pickup- Pickup Group 3
CPG4 Call Pickup- Pickup Group 4
CPGA Ceramic Pin Grid Array (IC VLSI Package)
CPGACC Call Pickup Group Access Codes
CPH Call Party Handling
CPH Called Party Hold
CPH Calls Per Hour
CPH Characters Per Hour
CPHB Computer Protocol Heart Beat
CPI Cable Pair Identification
CPI Call Progress Indication
CPI Call Progress Indicator
CPI Calling Party Identification
CPI Central Patents Index
CPI Characters Per Inch
CPI Common Part Indicator
CPI Common Programming Interface
CPI Communication Programming Interface
CPI Computer-to-PBX Interface
CPI Convergence Sublayer Protocol Information
CPI CPE Interface
CPI Cycles Per Inch
CPI Cycles per Instruction
CPI-C Common Programming Interface for Communications
CPID Call Processing Identifier
CPID Calling Party Identification
CPIW Customer-Provided Inside Wire
CPK Call Park
CPKBAS Call Park Basic
CPKDIR Directed Call Park
CPKSEC Directed Call Park with Security Code
CPL Capability Password Level
CPL Commercial Private Line
CPL Control Panel Applets File
CPL Current Privilege Level
CPL Cursor Preceding Line
C-PLANE Control PLANE
C-plane Control plane
CPLD Complex Programmable-Logic Device
CPM Cabinetised Peripheral Module
CPM Call-Progress Monitor
CPM Cards Per Minute
CPM Central Processor and Memory
CPM Common Peripheral Module
CPM Common Process Model
CPM Communications Processor Module
CPM Compact Peripheral Module
CPM Condensed Peripheral Module
CPM Conductive Plastic Material
CPM Conference Preparatory Meeting
CPM Continuous Phase Modulation
CPM Co-ordination and Project team Management department (ETSI)
CPM Core Package Modules
CPM Counts Per Minute
CPM Critical Path Method
CPM Critical-Path Method
CPM Customer Profile Management
CPM Cycles Per Minute
CPMGR Connection Point Manager
CPMS Cable Pressure Monitoring System
CPN Calling Party Number
CPN Cellular Provider Network
CPN Customer Premise(s) Network
CPN Customer Premises Node
CPNDC Calling Party Number Discard Control
CPNIE Calling Party Number Information Element
CPNM Call Processing Notification Manager
CPN-NP Calling Party Number-Network Provided
CPNPA Calling Party Number Presentation Allowed
CPNPN Calling Party Number Provision Necessary
CPNT Calling Party Number Delivery Type
CPN-UPNS Calling Party Number- User-Provided, Not Screened
CPNX Computer Protocol Network Executive
CPOCC Call Processing Occupancy
CPODA Contention Priority-Oriented Demand Assignment
CPOK Smalltalk C Programming ObjectKit
CPOL Communications Procedure-Oriented Language
CPOS Centralized AMA Position
cpp C Preprocessor
CPP C++ File
cpp C++ File
CPP Call Processing Protocol
CPP Calling Party Pays
CPP Common Peripheral Processor
CPP Component Project Plan
CPP Cordless Portable Part
CPP Customer Partnership Program
CPPEC Circuit Pack PEC
CPR Call Path Restoration
CPR Call Processing Record
CPR Change Process Re-engineering
CPR Continuing Property Records
CPR Continuous Progress
CPR Critical Path Restoration
CPR Critical Path Restoration
CPR Current Page Register
CPR Cursor Position Report
CPR Customer Problem Report
CPR1 Channel Priority Register 1
CPR2 Channel Priority Register 2
C-PRK Call Park
CPRTE Call Processing Run-Time Environment
CPS Call Processing Selector
CPS Call Processing Server
CPS Calling Party Sub-Address
cps Calls Per Second
CPS Cards Per Second
CPS Cellular Packet Switch
CPS Characters Per Second
cps Characters Per Second
CPS Circuit Pack Storage
CPS Common Part Sublayer
CPS Content Provider System
CPS Conversation Programming System
CPS Corporate Presence Server
CPS CP Selector
CPS Customer Premises System
CPS Cutoff Priority Scheme
cps Cycles Per Second
cps cycles per second (obsolete, now Hz)
CPSA Calling Party Subaddress
CPSD Calling Party Subaddress Delivery
cpsel CP Selector
CPSG Call Park Subscriber Group
CPSIE Calling Party Subaddress Information Element
CPSK Coherent Phase-Shift Keying
CPSL Confirmed Party Service Link
CPSR Computer Professionals for Social Responsibility
CPST Control Point Spanning Tree
CPT Call Progress Tone
CPT Carolina Public Television
CPT Cisco Protocol Translator
CPT Coinless Public Telephone
CPT Completion Tone
CPT Customer-Provided Terminal
CPTE Customer Premises Terminal Equipment
CPTLB Call Processing Terminal Linkage Block
CPTP Consolidated Product Test Plan
CPTS Coinless Public Telephone Service
CPU Call Pickup
CPU Central Processing Unit
CPU Central Processor Unit
CPUACC Call Pickup Access Codes
CPUB Call Pickup Billing Records
CPUBEX Call Pickup for the Business Environment
CPUDDN Directed Call Pickup
CPUDPU Directed Call Pickup with Barge-In
CPUFW CPU Firmware
CPUN Call Pickup Notification
CPUPEX Call Pickup for the Public Environment
CPVDN Calling Party Valid DNs
CPW Co-planar Waveguide
CPY Copy Backup Catalog File
CQ Channel Queue
CQ Communications Quality
CQA Call Queue Assignment
CQA Certified Quality Auditor
CQA Custom Quality Audit
CQC Cell Queue Controller
CQFP Ceramic Quad Flat Package
CQM Cell Queue Manager
CQM Circuit group Query Message
CQM Circuit Query Message
CQR Circuit group Query Response message
CQR Circuit Query Response message
CR Call Record
CR Call Reference
CR Call Report (TETRA)
CR Call Request
CR Call Restriction (supplementary service)
CR Call Router
CR Card Reader
CR Carriage Return
CR Carrier Recovery
CR Channel Response
CR Chrominance colour difference, Red
CR Clear Record
CR Cluster Robustness Tested
CR Code Restriction
CR Coin Return
CR Comite de coordination des Radiotelecommunications (CEPT)
CR Command Register
CR Component Request
CR Condition Register
CR Conditional Requirement
CR Configuration Record
CR Connection Request
CR Connection-Related function
CR Content Review
CR Contention Resolution
CR Control Register
CR Critical
CR Customer Record
CR Customer's Report
CR ISO country code for Republic of Costa Rica
Cr Red Chrominance
CR/D Code Restriction and Diversion
CRA Call Record Assembler
CRA Call Request Activate
CRA Call Routing Apparatus
CRA Call-Request Activation
CRA Circuit Reservation Acknowledgment message
CRA Customized Recorded Announcement
CRAC Change Request Authorization Committee
CRACF Call-Related Radio Access Control Function
CRAFT Co-operative Research Action for Technology
CRAG Cellular Radio Advisory Group
CRAM Card Random Access Memory
CRAS Cable Repair Administrative System
CRB Change Review Board
CRB Cramer-Rao Bound
CRB Customer Records and Billing
CRBDN Call Redirection Busy Directory Number
CRBE Conversational Remote Batch Entry
CRBL Call Reference Busy Limit
CRBO Centralized Records Business Office
CRBS Cell Relay Bearer Service
CRBT Continuous Ringback Tone
CRC Class, Responsibility, Collaboration
CRC Class-Responsibility-Collaborator
CRC Common Repair Code
CRC Communications Relay Center
CRC Communications Research Centre
CRC Cyclic Redundancy Check
CRC Cyclical Redundancy Check
CRC/BC Cyclic Redundancy Check/Blocked Check
CRC4 Cyclic Redundancy Check procedure
relating to the 2 048 kbit/s basic frame structure according to CC
CRCC Cyclic Redundancy Check Character
CRCC Cyclic Redundancy Code Character
CRCDN Call Redirection or Call Deflection Notification
CRCDS Call Redirection or Call Deflection Selection
CRD Call Rerouting Distribution
CRD Card file
CRD Color Rendering Dictionary
CRD Credit
CRD Customer Requested Delivery
CRDA Call Request Delete All
CRDN Call Redirection Directory Number
CRDN Call Redirection or Deflection Notification
CRDO Centre de recherche pour la defense, Ottawa
CRDP Call Redirection and Deflection Prevention
CRDPC Code Restriction/Diversion Prohibited Codes
CRDPCGP Code Restriction/Diversion Prohibited Codes Group
CRDS Call Request Delete Specific
CRE Call Re-establishment
CRE Call Re-establishment procedure
CRE Conductorship Relinquished
CRE Cordless Radio Equipment
CRED Credit Card Calling
CREF Connection Refusal message
CREF Connection Refused
CREG Concentrated Range Extension with Gain
CREJ Call Rejected
CREN Corporation for Research and Educational Networking
CREST Code Restrictions
CRET Call Retrieve
CRF Call Reference
CRF Call Reference Flag
CRF Cell Relay Function
CRF Connection Related Function(s)
CRF(VC) Virtual Channel Connection Related Function
CRF(VP) Virtual Path Connection Related Function
CRG Charge Information message
CRG Charging
CRG Common Routing Group
CRG Customized Ringing
CRH Classes-Responsibilities-Helpers
CRI Call Request with Identification
CRI Channel Restart Indicator
CRI Continuity Recheck Incoming
CRID Call Record ID
CRIS Customer Records Information System
CRISD Computer Resources Integrated Support Document
CRISP Cascadable Real-Time Integrated Signal Processor
Crit Critical
CRJE Conversational Remote Job Entry
CRL Certificate Revocation List
CRL Computing Research Laboratory
CRL Corporate Reuse Library
CRLB Cramer Rao Lower Bound
CRLF Carriage Return and Line Forward
CRLF Carriage Return, Line Feed
CRM Call Record Management
CRM Cell Rate Margin
CRM Circuit Reservation Message
CRM Component Resource Manager
CRM Connection Request Mode
CRM Control Representation Mode
CRMA Cyclic Reservation Multiple Access
CRMG Call Reference Manager
CRN Call Redirection Notification
CRn Call Reference Number
CRN Call Request with Number
CRN CMWI Ring Notification
CRO Cancel Rerouted Overflow
CRO Cathode Ray Oscilloscope
CRO Central Radio Office
CRO Central Records Office
CRO Certification Requirements Owner
cro Character Reference Open
CRO Continuity Recheck Outgoing
CRODN Call Redirection Out of Order Directory Number
CROM Control Read-Only Memory
CROP Component Rationalization and Optimization
CRP Call Request Packet
CRP Command RePeat
CRP CPU Root Pointer Register
CRPA Controlled Reception Pattern Antenna
CRQ Call Request
CRQ Closed User Group Selection and Validation Request message
CRR Call Request Retrieval
CRR Call Request Retrieve
CRR Circuit Reset Reception
CRR MDII: Reset Signal Received that Aborts Incoming Call
CRRE Corrected Receiving Reference Equivalent
CRS Call Recording Stream
CRS Call Redirection Subscription
CRS Cell Relay Service
CRS Cell Relay-based Service
CRS Centralized Results System
CRS Circuit Reset Sending
CRS Closed User Group Selection and Validation Response message
CRS Communicating Rule Systems
CRS Conference Reservation System
CRS Configuration Report Server
CRS Crescendo
CRS Crescendo Bulk Call Generator
CRS Crescendo Driver
CRS Customer Record Set
CRS Customer Report System
CRSA Centralized Repair Service Attendant
CRSAB Centralized Repair Service Attendant Bureau
CRS-B Crescendo-B (Ameritec BRI bulk call generator)
CRSC Cabinetized Remote Switching Center
CRSDRV Crescendo Driver
CRSN Call Record Sequence Number
CRSS Call Redirection Service State
CRSS Call-Related Supplementary Services
CRST Cluster Route Set Test message
CRT Call Retention (TETRA)
CRT Cathode Ray Terminal
CRT Cathode Ray Tube
CRT Continuous Ring Tone
CRTC Canadian Radio-Television and Telecommunications Commission
CRTC CRT Controller
CRTS Cellular Radio Telecommunications Service
CRTS Cellular Radio Test Set
CRTSIM Cathode Ray Tube Simulator
CRUD Create, Read, Update, Delete
CRUD Create, Retrieve, Update, Delete
CRV Call Reference Value
CRVDN Call Redirection Variable Directory Number
CRX Call Request Exempt
CS Cable Ship
CS Cable Station
CS Call Second
CS Call Segment
CS Call Server
CS Call State
CS Call Store
CS Capability Set (of IN)
CS Carrier Sense
CS Carrier Sensing
CS Carrier System
CS Cell Selection
CS Cell Site
CS Central Secretariat (CEN)
CS Check Sequence
CS Chip Select
CS Chip Select
CS Circuit Schematic
CS Circuit Switch
CS Circuit Switched
CS Circuit Switching
CS Class Style
CS Clear to Send
CS Code Segment
CS Code Server
CS Code Submitted
CS Codeset
CS Codeswitch
CS Coin Stuck
CS Commercial Specification
CS Communication et Signalization (CEPT)
CS Communication Subsystem (IBM)
CS Communication Support
CS Communication(s) System
CS Complete Sharing
CS Computer Science
CS Computer Simulation
CS Configuration Services
CS Connected Subaddress
CS Connection Segment
CS Connection Server
CS Control State
CS Convergence Sublayer
CS Coordinated Single-Layer
CS Cryptoserver
CS C-Side
CS Customer Specification
CS Customer-Specific
CS Higher layer Signalling channel (slow)
CS ISO country code for Czechoslovakia (obsolete)
CS/SS Card Services and Socket Services
CS1 Capability Set 1
CS-1 Capability Set 1
CS-1 IN Capability Set No 1
CS1R Capability Set 1- Refined
CS2 Capability Set 2
CS-2 Capability Set 2
CS-2 IN Capability Set No 2
CS3 Capability Set 3
CS-3 Capability Set 3
CSA Calendaring and Scheduling API
CSA Call Segment Association
CSA Called Subscriber Answer
CSA Canadian Standards Association
CSA Carrier Service Area(s)
CSA Carrier Serving Area
CSA Carry-Save Adder
CSA Client Service Agent (MAP2.1 directory services)
CSA Commercial Specification Agreement
CSA Computing Services Administrator
CSA Computing System Administrator
CSA Computing Systems Analyst
CSAB Computer Science Accreditation Board
CSAC Computer Science Accreditation Commission
CSACCS Customer Service Administration Control Center System
CS-ACELP Conjugate-Structure, Algebraic-Code-Excited Linear Prediction
CSAP Carrier Specific Announcement Phrasing
CSAPI Common Speller Applications Programming Interface
CSAT Customer Satisfaction
CSATS Circuit Switch Automated Test System
CSB Central-Side Busy
CSB Channel Supervision Bit
CSB Client Support Bulletin
CSC Canadian Standards Committee
CSC Cell Site Controller
CSC Central Site Controller
CSC Central Switching Center
CSC Character Sets and their Coding
CSC Circuit Signaling Channel
CSC Circuit Switching Center
CSC Clock Synchronization Circuit
CSC Codeswitch Controller
CSC Common Signalling Channel
CSC Common Supplier Code
CSC Control Signalling Code
CSC Critical Service Circuit
CSC Customer Service Center (ATT)
CSC Customer Service Change
CSCAN Customer Service Computerized Access Network
CSCANS Customer Services Computer Access Network Standards
CSCC Command Session Change Control
CSCC Coordinated State Change Control
CSCD Common Signalling Channel Demodulator
CS-CDPD Circuit-Switched Cellular Digital Packet Data
CSCF Common Service Circuit Frame
CSCM Common Signalling Channel Modem
CSCN Canadian Steering Committee on Numbering
CSCS Common Signalling Channel Synchroniser
CSCV CS Connection View
CSCW Computer Supported Collaborative Work
CSCW Computer Supported Collaborative Working
CSCW Computer-Supported Cooperative Work
CSD Circuit Switched Data
CSD Circuit-Switched Digital Service
CSD Communications Service Division
CSD Communications Systems Division
CSD Corrective Service Diskette
CSD CPS System Description
CSD Customer Service Division
CSDC Circuit Switched Digital Capability
CSDDN Circuit Switched Digital Data Network
CSDDS Circuit Switched Digital Data Service
CSDI Calling Card Service Denial Indicator
CSDI CCAN Service Denial Indicator Identifier
CSDI CCSAN Service Denial Indicator
CSDN Circuit Switched Data Network
CSDS Centralized Software Distribution System
CSDS Customer Service Data System
CSDS Customer Service Database System
CSDS/E Customer Service Data System-Evolution
CSE Cause
CSE Communications Security Establishment
CSE Coordinated Single-Layer Embedded
CSE Customer Service Expert
CSECT Control Section
CSEL Cable Select
CSELT Centro Studi e Laboratori Telecomunicazioni (I)
CSER Consortium for Software Engineering Research
CSF Cell Site Function(s)
CSF Customer Service Functions
CSFID Cross-Service Feature Interaction Detection
CSFP Coded Superframe Phase
CSFT Customer Services Feature Translator
CSG Caller Subscriber Geography
CSH C Shell
csh C Shell
CSH Called Subscriber Held
CSI Call Setup Initialization
CSI Called Subscriber Identification
CSI Carrier Scale Internetworking
CSI Channel State Information
CSI Clearing Subnetwork Identification
CSI Code Selection Indicator
CSI Command Sequence Initiator
CSI Control Sequence Introduction
CSI Convergence Sublayer Indication
CSI Current Source Inverter (Power Electronics)
CSID Call Segment Identifier
CsID Call Segment Identifier
CSID Calling Station Identifier
CSIDE Core Side
C-SIDE Core Side
CSIO Clocked Serial Input/Output
CSIR Co-channel Signal to Interference Ratio
CSL Command and Status Link
CSL Component Sublayer
CSL Component Substitution List
CSL Computer Systems Laboratory (USA)
CSL Constraint Specification Language
CSL Control and Simulation Language
CSL Current-Sinking Logic
CSLIP Compressed SLIP
CSLK Control Side Link
CSLN Client-Server Layer Network
CSLT Created Service Live Testing
CSM Call Segment Model
CSM Call Supervision Message
CSM Cell Site Monitor
CSM Central Service Module
CSM Centralized Software Management
CSM Channel Supervision and Messaging
CSM Channel Supervision Manager
CSM Channel Supervision Message
CSM Combined Symbol Matching
CSM Communication Session Manager
CSM Communication System Management
CSM Communications Services Manager
CSM Communications System Monitor
CSM Complex Services Module
CSM Concorde System Manager
CSM Correed Switching Matrix
CSMA Carrier Sense Multiple Access
CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
CSMA/CD Carrier Sense Multiple Access with Collision Detection
CSMA/CR Carrier Sense Multiple Access with Contention Resolution
CSMO Cell Site Master Oscillator
CSMP Continuous System Modelling Program
CS-MUX Circuit-Switched Multiplexer
CSN Card-Select Number
CSN Cell Site Node
CSN Cellular Service(s) Node
CSN Circuit Switched Network
CSN Cluster Sequence Number
CSN Common Services Network
CSNET Computer + Science Network
CSNET Computer Science Network
CSNP Complete Sequence Number PDU
CSO Central Services Organization
CSO Centralized Service Observation
CSO Cold Start Only
cso Cold Start Only
CSO Components and Supply Operations
CSO Composite Second Order
CSO Computer Service Organization
CSO Customer Service Operations
CSO Customer Service Organization
CSO Customer Services Order
CSOM Computer System Operator's Manual
CSOS Central Support Operating System
CSOS Change Service Order System
CSP Call System Procedure
CSP Character Shape Player
CSP Chip Scale Package
CSP Cluster Server Process
CSP Coin, Semi-Postpay
CSP Coint Sent Paid
CSP Communicating Sequential Process(es)
CSP Communications Services Platform
CSP Communications System(s) Platform
CSP Composite Service Participant
CSP CompuCom Speed Protocol
CSP Control Switch Point
CSP Control Switching Point
C-SPAN Cable Satellite Public Affairs Network
CSPDN Circuit Switched Public Data Network
CS-PDU Convergence Sublayer Protocol Data Unit
CSPM C-Side Peripheral Module
CSPP Computer Systems Policy Project (US)
CSPS Constrained System Parameter Stream
CSQP Customer/Supplier Quality Process
CSR Cell Switch Router
CSR Cell Switch Routing
CSR Cell Switching Router
CSR Channel Status Register
CSR Character Shape Recorder
CSR Code Special Ring
CSR Code Specific Reroute
CSR Communications Standards Review
CSR Consistency Check Request message
CSR Control and Status Register
CSR Customer Service Record
CSR Customer Service Report
CSR Customer Service Representative
CSR Customer Service Request
CSR Customer Station Rearrangement
CSRA Consistency Check Request Acknowledge message
CSRC Contributing Source
CSRE Corrected Sending Reference Equivalent
CSRG Computer Science Research Group
CSRG Computer Systems Research Group
CSRM Call Server Resource Module
CSRU Created Service Resource Utilization
CSS Cascading Style Sheet
CSS Cell Site Simulator
CSS Cell Site Switch
CSS Cellular Simulation System
CSS Cellular Subscriber Station
CSS Comprehensive Software Support
CSS Connection-Successful Signal
CSS Contact Start/Stop
CSS Created Service Simulation
CSS Customer Switching System
CSS1 Cascading Style Sheet Level 1
CSSB Compatible Single SideBand (transmission)
CSSM Cross-SCE Service Maintenance
CSSN Circuit State Sequence Number
CSSP Cache Set Status Port
CSSP Common Services Switching Point
CST Carrier Power Supply, Transistorized
CST Central Standard Time
CST Central Station
CST Class-Of-Service Tone
CST Common Segment Table
CST Computer Supported Telecommunications
CST Connection Switch Table
CSTA Computer Supported Telephony Applications
CSTA Computer-Supported Telecommunications Applications
CSTMGRP Customer Group
CSTO Computing Systems Technology Office
CSTS Customer Service Technical Support
CSU Channel Service Unit
CSU Check Signal Unit
CSU Client State Update
CSU Common Support Unit
CSU Communications Server Unit
CSU Communications Service Unit
CSU Communications System User
CSV Certified System Vendor
CSV Circuit Switched Voice
CSV Comma Separated Value(s)
CSV Common Service Verbs
CSV Cornerstone Voice
CSVD Continuously Variable Slope Delta
CSVR Closed User Group Selection and Validation Request Message
CSVS Closed User Group Selection and Validation Response Message
CSW Channel Status Word
CT Call Tracing
CT Call Transfer
CT Call Transfer supplementary service
CT Call Type
CT Centre du Transit
CT Channel Tester
CT Channel Type
CT Code Table
CT Coding Type
CT Collectable Token
CT Complete Translation
CT Computed Tomography
CT Computer Telephony
CT Computer Terminal
CT Computer Tomography
CT Conformance Testing
CT Conformance Testing
CT Connection Termination
CT Connection Type
CT Continuity Transceiver
CT Control Terminal
CT Cordless Telecommunications
CT Cordless Telephone
CT Critical Interdigital Timing
CT Cross Talk
CT Cut-Through
CT U.S. postal code for Connecticut
CT1 Cordless Telephone 1
CT1 Cordless Telephone 1st generation
CT1+ Version of CT1 using different frequencies for certain countries
CT2 Cordless Telephone 2
CT2 Cordless Telephone 2nd generation
CT-2 Cordless Telephone 2
CT2Plus Cordless Telephone 2 Plus
CT3 Cordless Telephone 3
CT4Q Call Type for Queuing
CTA Call Transfer All
CTA Camp-On Tone Allowed
CTA Common Temporary Address
CTA Cordless Telephone Adapter
CTA Cordless Telephone Apparatus
CTA Cordless Terminal Adaptor
CTAC Customer Technical Advisory Council
CTAG Correlation Tag
CTAK Cipher Text Auto Key
CTAK Ciphertext Auto Key
CTALL Call Transfer of All Calls
CTAO Call Transfer Attendant Only
CTAP Common Temporary Address Pointer
CTAS Customer Technical Assistance and Support
CTB Cable Termination Box
CTB Cable Transition Board
CTB Central Bus
CTB Cipher Type Byte
CTB Composite Triple Beat
CTC Call Type Code
CTC Columbus Technology Center
CTC Continue To Correct
CTC Cursor Tab Control
CTCI Continue To Count Indicator
CTCM Chrominance Time Compressed Multiplexing (VTR)
CTCP Communication and Transmission Control Program (OSI/SNA)
CTCSS Continous Tone Controlled Squelch System (Sub-Audio Signal)
CTCSS Continuous Tone-Controlled Squelch System
CTD Call Topology Display
CTD Camp-On Tone Denied
CTD Carrier Toll Denied
CTD Cell Transfer Delay
CTD Charge Transfer Device
CTD Continuity Tone Detector
CTD Cumulative Transit Delay
CTD Cumulative Trauma Disorder
CTD Cut-Through Delay
CTD Cut-Through Dialing
CTDT Code or Toll Diversion Treatment
CTE Cable Terminating Equipment
CTE Carrier Timing Entry
CTE Channel Translating Equipment
CTE Circuit Terminating Equipment
CTE Coefficient of Thermal Expansion
CTE Computer Telephony Engine
CTE Customer Terminating Equipment
CTE ISDN Class II Equipment
CTF Circuit Free message
CTFJ Computer Telephony Forum of Japan
CTFRS Call Transfer, Fully Restricted
CTFRSAM Call Transfer, Fully Restricted for Analog Member of EKTS
CTFT C-Thin-Film Transistor
CTG Capacitance Tip to Ground
CTI Call Transfer Individual
CTI Call Treatment Indicator
CTI Centralized Ticket Investigation
CTI Colour Transient Improvement (Video)
CTI Compania de Telefonos del Interior
CTI Compile Time Instrumentation
CTI Computer-Telephony Integration (ECMA)
CTIA Cellular Telecommunications Industry Association
CTIG Call Transfer Inside Group
CTINC Call Transfer of Incoming Calls
CTIO Call Transfer Incoming Only
CTIOIG Call Transfer Incoming Only Inside Group
CTIP committee on Computing, Telecommunications and Information Policies
CTL Communication Test Line
CTL Computing Technology Laboratory
CTM Cell Transfer Mode
CTM Communication Terminal Module
CTM Conference Trunk Module
CTM Coordinate Transformation Matrix
CTM Cordless Terminal Mobility
CTM Current Transformation Matrix
CTMB Cell Transfer Matrix Bus
CTME Cabinetized Trunk Module Equipment
CTMF Conformance Testing Methodology and Framework
CTMS Carrier Transmission Maintenance System
CTN Cordless Telecommunication(s) Network
CTN Corporate Telecommunication Networks
CTNP Changed to Non-Published Number
CTO Chief Technical Officer
CTO Corporate Telecommunications Operation
CTO Cut-Off
CTO MDII: Timeout Waiting for Continuity Check Signal
CTOG Call Toggle
CTOG Call Transfer Outside Group
ctor Constructor
CTOS Convergence-Technologies (Inc.) Operating System
CTOS Convergent Technologies Operating System
CTOUT Call Transfer of Outgoing Calls
CTP Cache Tag Port
CTP Condensed Timing Plan
CTP Configuration Testing Protocol (Ethernet/loopback testing)
CTP Connection Termination Point
CTP0 Cache Tag Port Register 0
CTP1 Cache Tag Port Register 1
CTP2 Cache Tag Port Register 2
CTP3 Cache Tag Port Register 3
CTQ Call Transfer Queue
CTR Call Progress Tone Receiver
CTR Call Tone Receiver
CTR Call Transfer
CTR Capacitance Tip to Ring
CTR Columbia University
CTR Common Technical Regulation (ACTE)
CTR Conformance Test Report
CTR Count Register
CTR CounTeR
CTR Counter Register
CTR Current Transfer Ratio
CTR Customer Trouble Report
CTR Response to continue To Correct
CTRA Call Transfer
CTRD Code or Toll, Restriction or Diversion
CTRL Control
CTRT Code or Toll Restriction Treatment
CTRU CAMA TOPS Recording Unit
CTS Cable Terminal Section
CTS Cable Turning Section
CTS Call Throttling Services
CTS Call-Through Simulator
CTS Carpal-Tunnel Syndrome
CTS Carrier Transmit switch
CTS Channel Time Slot
CTS Clear To Send (signal)
CTS Communication(s) Technology Satellite
CTS Compatible Time Sharing (IBM)
CTS Computer TypeSetting
CTS Conformance Test Service(s)
CTS Conformance Testing Service(s) (programme)
CTS Cordless Telephone Services
CTS2 XMHS EXtended MHS CTS
CTSAP Call Transfer Software Application Package
CTSL Core Test Services Layer
CTSS Compatible Time Sharing System
CTSS Computerized Tandem System Switch
CTT Cable Trouble Ticket
CTT Cellular Terminal Testing
CTT Code TransparentTtransmission
CTT Computed Transmission Tomography
CTTC Coax To The Curb
CTTE Common TDMA Terminal Equipment
CTTH Coax To The Home
CTTL Call Transfer to Tie Lines
CTTLAM Call Transfer to Tie Lines for Analog Member of EKTS
CTTU Central Trunk Test Unit
CTTU Centralized Trunk Test Unit
CTU Cabin Telecommunications Unit
CTU Cable Termination Unit
CTU Caribbean Telecommunication Union
CTU Cartridge Tape Unit
CTU Central Termination Unit
CTU Customer Terminal Unit
CTUP Chinese TUP
CTV Colour TeleVision
CTW Call Transfer Warning Tone
CTX Centrex
CTXCO Centrex Central Office
CTXCU Centrex Customer
CU Central Unit
CU Channel Unit
CU Control Unit
CU Cooling Unit
CU Cornell University
CU Customer
CU Customer Use
CU ISO country code for Republic of Cuba
CU See you
CUA Common User Access (SAA-IBM)
CUB Cursor Backward
CUC Charge Unit Count
CUCCA Columbia University Center for Computing Activities
CUD Cursor Down
CUE Character-Terminal User Environment
CUE Corporate UNIX Environment
CUF Channel Utlization Factor
CUF Cursor Forward
CUG Clean-Up Group
CUG Closed User Group (supplementary service)
CUG/OA Closed User Group with Outgoing Access
CUGFORM CUG Format
CUGIci CUG Interlock Code Indicator
CUGIDX Closed User Group Index
CUGNID CUG Network Identifier
CUGSELTYP Closed User Group Selection Type
CUI Character User Interface
CUI Character-Oriented User Interface
CUIF Control Unit Interface
CUJ The C User's Journal
CUJ The C/C++ User's Journal
CUL See you later
CUP Call User Procedure
CUP Credit Update Protocol
CUP Cursor Position
CUPS Customer Unspecified Private Services
CUR Cursor Resource file
CURACF Call-Unrelated Radio Access Control Function
CUS Customer Signoff
CUSD Call Forward Usage Sensitive Denial
CUSF Call-Unrelated Service Function
CUSP Call-Unrelated Service Point
CUSTCTL Customer Controlled
CUSTID Customer Identification
CUT Circuit Under Test
CUT Class Under Test
CUT Control Unit Terminal (IBM)
CUT Cutoff
CUTTD Cut Through Dialing
CUU Cursor Up
CV CallVer
CV Code Violations
CV Coding Violation
CV Connection View
CV Curriculum Vitae
CV ISO country code for Republic of Cape Verde
CVBS Composite Video, Blanking and Synchronisation signal
CVBS Composite Video, Burst, and Sync
CVC Compact Video Coded
CV-CRC Coding Violations CRC
CVD Chemical Vapor Deposition
CVD CodeView Debugger
CVD Compact Video Disk
CVD Coordinated Voice and Data
CVDSM Continuously Variable Slope Delta Modulation
CVF Compressed Volume File
CVG Convergence
CVG-PDU Convergence PDU
CVH Clocked Violation HI
CVI CVT Request Message
CVIS Conversant Voice Information System
CVL Clocked Violation LO
CVM Circuit Validation Test message
CVN MDII: Vacant National Number (VNN) Signal Received
CVNM Customer Virtual Network Management
CVP Content Vectoring Protocol
CVR Circuit Validation Response message
CVR CVT Response Message
CVRAM Cached VRAM
CVRT Connection View Round-Trip Time
CVS Central Video Server
CVS Connection View State
CVS Current Virtual Address Space
CVSD Continuous Variable Slope Detection
CVSD Continuously Variable Slope Delta (coder)
CVSDM Continuously Variable Slope Delta Modulation
CVSL Cascade Voltage Switch Logic
CVT Circuit Validation Test
CVT Circuit Validation Test message
CVT Constant-Voltage Transformer
CVT Cursor Vertical Tab
CVW Codeview for Windows
CW Call Waiting (supplementary service)
CW Clockwise
CW CommunicationsWeek (periodical)
CW Contention Window
CW Continuous Wave
CW Control Word
CW Create Window
CW/F Call Waiting/Forwarding
CWA Call Waiting Allowed
CWA Communication Workers of America
CWAI Clear and WAit for Interrupt
CWAN Corporate WAN (ATT)
CWAS Call Waiting Auto-Suppression
CWB Call Waiting Billing Records
CWC Cable and Wireless Communications
CWC Call Waiting Cancel
CWCA Call Waiting Call Appearance for Analog Member of EKTS
CWCAM Call Waiting Cancel for Analog Member of EKTS
CWCGO Call Waiting Cancel Intragroup Only
CWCIO Call Waiting Cancel Incoming Only
CWD Call Waiting Deluxe
CWD Call Waiting Denied
CWD Current Working Directory
CWD Dial Call Waiting
CWDL Call Waiting Dial
CWDLACC Call Waiting Dial Access Code
CWDLAM Call Waiting Dial for Analog Member of EKTS
CWHA Call Completion With Announcement
CWI Call Waiting Indication
CWI Call Waiting Indicator
CWI Call Waiting, Intragroup
CWI Change Window Indicator
CWIO Call Waiting Incoming Only
CWIS Campus-Wide Information System
CWND Congestion Window
CWO Call Waiting Originating
CWOA Call Completion Without Announcement
CWOAM Call Waiting Origination for Analog Member of EKTS
CWP Communicating Word Processor
CWP Costed Work Programme (ETSI)
CWP Current Working Point
CWQ1 Call Waiting Queue Interval 1
CWQ2 Call Waiting Queue Interval 2
CWQ3 Call Waiting Queue Interval 3
CWR Call Waiting Reports
CWR Call Waiting Ringback
CWR Change with Referral to New Number
CWRI Change Window Reply Indicator
CWRT Call Waiting Reports Terminal(s)
CWRU Case Western Reserve University
CWS Combined World Switch
CWS1 Combined World Switch One
CWT Call Waiting
CWT Call Waiting Termination
CWT Call Waiting Tone
CWTAM Call Waiting Termination for Analog Member of EKTS
CWTGO Call Waiting Intra-Group Only
CWTIO Call Waiting Incoming Only
CWX Call Waiting Exempt
CX Co-eXistence standard
CX Coinbox
CX Compatible eXpansion
CX Composite
CX Composite Signaling
cx Count for x length (short)
CX Count register
CX ISO country code for Christmas Island
CXC Call-by-Call
CxC Call-by-Call
CXE Containment and Cross Reference Engine
CXR Call Transfer
CXR Call Transfer Recall
CXR Carrier
cxx C++ File
CY Calendar Year
CY CapacitY
cy Count for y length (short)
CY CYcle
CY ISO country code for Republic of Cyprus
CYL Cylinder
CYMK Cyan, Yellow, Magenta, and Black
CYTA Cyprus Telecommunications Agency
CZ ISO country code for Czech Republic
D Data D Data channel d deci (10-1) D Decimal D Deficiency D Delivery confirmation bit D Delta channel D Deprecated D Detailed D Diagonal (link) D Disconnect D Dispersion D Distance D channel Signalling channel (in CT2) D&OS Deployment and Operations Support D&OS Directory and Operator Services D/A Digital/Analogue D/A Digital-to-Analog D/C Down Converter D/D Digital to Digital D/L Download D/U Delay Unit D+R Drop and Repeat node D1 Directory One D1 Number of User-Assigned Call Control TEI Values D2 Number of Switch-Assigned Call Control TEI Values D2048U 2048 kbit/s Digital Unstructured ONP leased line D3D Direct 3D D64U 64 kbit/s Digital Unstructured DA Data Acquisition DA Data Available da deca (10+1) DA Delayed Activation DA Demand Assignment DA Design Accepted DA Destination Address DA Destination Allocation DA Development Agreement DA Device Attributes DA Digit Absorbing DA Digital Access DA Digital Announcer DA Direct Access DA Direct Attribute DA Directory Agent DA Directory Assistance DA Discretionary Assurance DA Distinctive Alerting DA Distributed Access DA Distribution Area DA Doesn't Answer DA Double Armor DA Double Armored DA Draft Addendum D-A Digital to Analog DA/CWI Distinctive Alerting/Call Waiting Indication DAA Data Access Arrangement DAA Data Access Arrangement (Bell) DAA Data/digital Access Arrangement DAA Directory Assistance Automation DAAR Dynamic Automatic Alternative Routing DAB Digital Audio Broadcasting DABCE Deactivation of Automatic Bridging Call Exclusion DABE Deny All But Emergency DABG Distinctive Alerting Call Waiting Business Group DABG Distinctive Alerting for BBG Members DABM Dual Access Buffer Memory DABR Data Address Breakpoint Register DAC Data Access Card DAC Datafield Access Conditions DAC Demand Assignment Circuit establishment DAC Digital to Analog Converter DAC Directory Access Command DAC Discretionary Access Control DAC Dual Attach Station Concentrator DACC Directory Assistance Call Completion DACCS Digital Access Cross-Connect System dacd Dial Carrier Access Code DACD Directory Access Control Domain DACE Data Administration Center Equipment DACIA Dual Asynchronous Communication Interface Adaptor DACL Discretionary Access-Control List DACRM Data Communication Recovery Manager DACS Digital Access and Cross-Connect System (AT&T) DACS Digital Access Crossconnect System DACWAC DARCW Active/Inactive Status DACWNL Distinctive Alerting/Call Waiting Number List DAD Datapac Adviser (Telecom Canada) DAD Demand Assignment circuit Disestablishment DAD Desktop Application Director DAD Destination Address Display DAD Draft Addendum DAdC Divert AdC DAdm Dial Administration DADS Delayed Call Database Administration DADS Directory Assistance Database Service DAE Data Access Evolution DAE Digital Audio Extraction DAEDR Delimitation, Alignment, Error Detection (Receiving) DAEDT Delimitation, Alignment, Error Detection (Transmitting) DAF Destination Address Field DAF Digital Audio File (digital audio tape) DAF Directory Access Function DAF Distributed Applications Framework DAF Distributed Architecture Framework DAF DQDB Access Functions DAFT Distributor Architecture Focus Team DAG Data Address Generator DAG Datenanschaltegerat (Data Connection Unit) DAG Directed Acyclic Graph DAHR Data Address Hold Register DAI Data Abstraction Interface DAI Data Accumulation Interval DAI Deny All International DAI Digital Audio Interface DAI DPMS/Application System Interface DA-I ISDN Distinctive Alerting Indication DAIS Data Access Interface Session DAIS Defense Automatic Integrated Switching System DAIS Direct Access Intercept System DAIS Distributed Application Integration System DAL Dallas DAL Data Access Language DAL Data Access Line DAL Database Administration Language DAL Dedicated Access Line DAL Direct Access Line DAL Direct Access Link DAL Distinctive Alerting DALAC Distinctive Alerting Active/Inactive Status DALACC Distinctive Alerting Access Codes DALB Distinctive Alerting Billing Records DALBACC Sistinctive Alerting Business Group Access Codes DALCOD DAta Line COncentrator/Deconcentrator DALLE Distinctive Alerting List Editing DALLEACC Distinctive Alerting List Editing Access Code DALLEBACC Distinctive Alerting Business Group List Editing Access Code DALNL Distinctive Alerting Number List DALNLS Distinctive Alerting Number List Size DALRC Distinctive Alerting Restricted Control DALRCAM Distinctive Alerting Restricted Control for Analog Member of EKTS DALT Distinctive Alerting Toggle DAM DECT Authentication Module DAM DECT Authentication Module DAM Device Adapter Manager DAM Diagnostic Acceptability Measure DAM Draft Amendment DAMA Demand Assignment Multiple Access DAML Digital Added Main Line DAMPS Digital Advanced Mobile Phone System D-AMPS Digital Advanced Mobile Phone System D-AMPS Digital AMPS DA-MSP Distributed Access MSP DAN Desk Area Network DAN Destination Address Number DANI Direct Automatic Number Identification DAO Data Access Objects DAO Database Access Object DAO Digits-as-Outpulsed DAP Data Access Protocol DAP Destination Access Point DAP Digital Access Point DAP Directory Access Protocol (X.500, DUA-DSA) DAP Dispatch Application Processor DAP Display Administration Process DAP Distributed Array Processor DAPI Destination Access Point Identifier DAPR Destination Address Pointer Register DAPSK Differential Amplitude Phase-Shift Keying DAQ Define Area Qualification DAR Daily Activity Report DAR Data Address Register DAR Defense Acquisition Regulations DAR Digital Audio Radio DAR Direct- and Alternate-Routed DAR Directional Alternate Routing DAR Dynamic Alternative Routing DARC Data Radio Channel (Japan) DARC Deutscher Amateur Radio Club (D) DARCW Distinctive Alerting/Ringing Call Waiting DARE Data Analysis and Representation Engine DARPA Defense Advance Research Projects Agency (USA) DARPA Defense Advanced Research Projects Agency DARS Digital Audio Radio Service DART Data Access and Reporting Tool DART Debugger for Remote Target DART Debugging, Analysis, and Run-time Tools DART Direct Audio RouTines DART Dump and Restore Table DARTS Design Approach for Real-Time Systems DAS Data Acquisition System DAS Data Auxiliary Set DAS Decimal Adjust after Subtraction (80x86 inst) DAS Demonstrator Access System DAs Dienstanschluss (Service Terminal) DAS Digit Analysis Selector DAS Digital Alarm Scanner DAS Direct Analogue Synthesis (signal generator) DAS Directory Assistance Services DAS Directory Assistance Simulator DAS Directory Assistance System DAS Dual Attach Station DAS Dual Attachment Station (FDDI) DAS Dual-Attachment Station DAS Dynamic Allocation Scheme DAS/CCI CCI Directory Assistance System DASA Daimler-Benz Aerospace AG DASD Direct Access Storage Device DASD Direct Access Storage Device (SNA) DASE Daily Aggregate Service Events DASH Description of Architecture and Services Harmonisation (ETSI) DASH Direct Access Storage Handler DASIM Directory Assistance Simulator DASK Digital implementation for Amplitude-Shift Keying DASK Display Agents Status Key DASK Display Agents Summary Key DASL Digital Adaptor for Subscriber Line DASM Direct Access Storage Media DASP Drive Active/Slave Present DASS Demand Assignment Signalling and Switching DASS Digital Access Signalling System DASS Direct Access Secondary Storage DASS Distributed Authentication Security Service DASS2 Digital Access Signalling System Number 2 DAT Data DAT Data File DAT Dedicated Access Trunk DAT Delay Alerting Timer DAT Digital Audio Tape DAT DQDB Access Termination DAT Duplicate Address Test DAT Dynamic Address Translation DATAM Document Architecture Transfer And Manipulation DATAS DMS Accounting and Traffic Analysis System DATE Dedicated Access to X.25 Transport Extension (OSI/SNA) DATEL DAta TELecommunication-DAta TELegraph-DAta TELephone DATV Digital Assistance for TV DATV Digitally Assisted TeleVision DAU Data Arithmetic Unit DAV Data Above Voice DAV Data Above Voice DAV DAta Valid (IEEE-488 Bus Signal) DAV Date of AVailability DAVC Delayed Automatic Volume Control DAVIC Digital Audio-VIsual Council DAVID Data Above Video DAVLC Data Above Voice Line Card DB Data Base DB Data Block DB Database DB Daughter Board dB Decibel(s) DB Device Buffer DB Dummy Burst dB(775mV) deciBel relative to 775 mV dB/Rm deciBel per kilometer DB2 Database 2 DBA Data Base Administrator/-tion DBA Database Administrator dBA deciBel (Audio, Weighting Curve A) dBA Decibels of acoustical loudness, A-weighted DBA Dynamic Bandwidth Allocation DBAM Data Base Access Method DBAS Database Administration System DBAT Data BAT dBc dB relative to the carrier power DBC Default Bearer Capability DBC Downbanded Cellular DBC Dummy Bearer Control DBC Dynamic Beam Control (Video Camera Tubes) DBCES Dynamic Bandwidth Circuit Emulation Service DBCP Database Control Point DBCS Database Control System DBCS Double-Byte Character Set DBD Database Desktop DBD Disk Block Descriptor DBDL Data Base Description Language DBE Double-Buffering Extension DBEF Dual Brightness Enhancement Film DBF Digital Beamformer DBH Direct Broadcasting to Home DBI Data Base Index dBi deciBel relative to an isotropic radiator DBIC Data Enhanced Bus Interface Card DBIF Data Buffer Interface DBIMOS DMOS/BIMOS DBIN Data Bus In DBIR Directed Beam Infrared DBIT D Bit D-bit Delivery Confirmation bit DBK Dialback DBL Database Language DBL Detailed Billing DBL Double Connection DBM Data Base Manager DBM Database Management dbm dB relative to 1 milliwatt dBm Decibels relative to 1 milliwatt DBM Dial Backup Module DBM Double Balanced Mixer dBm0 Decibels relative to 1 milliwatt at the 0 TLP dBm0p deciBel relative to Origin Psophometrically weighted DBMC Database Management Center dBmp deciBel relative to 1 milliwatt psophometrically weighted DBMS Database Management System DBN Dial by Name DBNE Test Not Equal, Decrement, and Branch (680x0 inst) DBNN Delete Bridged Night Number DBO Drop Build-Out DBOC Drop Build-Out Capacitance DBOR Drop Build-Out Resistance dBov dB below overload point DBP Database Processor DBP Deutsche Bundespost DBP Deutsche BundesPoste (D, obsolete) DBPM Differential BiPhase Modulation DBPT Deutsche Bundespost Telekom dBr deciBel, relative level DBR Deterministic Bit Rate dBr Relative Decibels dBrN deciBel with reference to Noise dBrnC Decibels above reference noise level with C-message weighting dBrnC0 Decibels above reference noise level with C-message weighting at the 0 TLP DBS Data Base System DBS Data Bridging Service DBS Database Server DBS Direct Broadcast from Satellite DBS Direct Broadcast(ing) by Satellite DBS Direct Broadcast(ing) Satellite DBS Duplex Bus Selector DBS-PC Direct Broadcast Satellite PC DBT Deutsche Bundespost Telekom DBTR Digital Bit Timing Recovery dBu Decibels relative to 1 microwatt DBU Dynamic Bandwidth Utilization dBV deciBel relative to one Volt ( 0 dBV = 1 V ) DB-VSB Dual-Binary Vestigial Sideband dBW deciBel relative to one Watt ( 0 dBW = 1 W ) DBX Digital Branch eXchange (PBX) DC Data Cartridge DC Data Center DC Data Cncentrator DC Data Communication DC Data Communications (periodical) DC Data Conversion DC DDOC Completed DC Define Constant DC Delayed Call DC Design Close DC Design Complete DC Destination Category DC Destination Class DC Device Context DC Device Control DC Device Controller DC Device Coordinates DC Diagnostic Controller DC Digit Collection DC Direct Call DC Direct Current DC Directional Coupler DC Disconnect Confirm DC Disk Change DC Display Controller DC Distribution Center DC DRU Component DC Dry Circuit DC Physical D-Channel DC U.S. postal code for District of Columbia DC1 Device Control 1 DC2 Device Control 2 DC3 Device Control 3 DC4 Device Control 4 DC-600 Data Cartridge 600 DCA Austrian DCM DCA Defence Communication Agency (DoD) DCA Design Change Authorization DCA Destination Connection Agent DCA Digit Collection Allocate DCA Digital Communications Architecture DCA Digital Communications Associates DCA Direct Customer Access DCA Distributed Communications Architecture (Univac) DCA Distributed Computing Architecture DCA Document Communications Architecture (SNA. TOP) DCA Document Content Architecture (LU6.2/DISOSS/TOP) DCA Dynamic Channel Allocation DCA Dynamic Channel Assignment DCA Dynamic Context Addressing DCAF Distributed Console Access Facility DCAP Data Communications Application DCAP Display Capability DCB Data Cache Block DCB Data Control Block DCB D-Channel Backup DCB Device Control Block DCB Digital Channel Bank DCBI Directed Call Pick-Up with Barge-In DCBX Directed Call Pick-Up Barge-In Exempt DCC Data Carrier Detect (Modem Signal) DCC Data Communications Channel DCC Data Communications Circuit DCC Data Country Code (OSI-NL) DCC D-Channel Controller DCC Destination Code Cancel DCC Device Cluster Controller (Networks) DCC Device Color Characterization DCC Differential Chain Code DCC Digit Collection DCC Digital Color Code DCC Digital Compact Cassette DCC Digital Control Channel DCC Digital Country Code DCC Digital Cross-Connect DCC Digroup Control Card DCC Digroup Controller Card DCC Direct Cable Connection DCC Distributed Call Center DCC Flexible Calling Deactivate Conference Facility DCCA Distributed Control Channel Allocation DCCC Double Current Cable Code DCCE Digital Cellular Common Equipment DCCH Dedicated Control CHannel DCCH Digital Control Channel DCCS Distributed Capability Computing System DCCT Direct Current-Current Transformer DCD Data Carrier Detect (signal) DCD Design Change Document DCD Dialed Category Digit DCDN Direct Call Directory Number DCE Data Circuit-Terminating Equipment DCE Data Communications Equipment DCE Design Cost Estimation DCE Digit Collection Error DCE Digital Carrier Equipment DCE Dispatcher Control Entry DCE Distributed Computing Environment (OSF) DCE Drum Cable Engine DCF Data Communication Function DCF Data Conversion Facility DCF Data Count Field DCF DC Fuse Panel DCF Denied Call Forward DCF Denied Call Forwarding DCF Disengage Confirm DCF Disengage Confirmation DCF Dispersion-Compensating Fiber DCF Distributed Coordination Function DCF Document Composition Facility DCG Dispersion Compensating Grating DCH D-Channel Handler DCH Delete Character(s) DCHI D-Channel Handler Interface DCHL D Channel DCI Data Communication Interface DCI Delivery of Complementary Information DCI Digit Collection Instruction DCI Digital Carrier Interface DCI Display Control Interface DCI Dynamic Control Interface DCIC Disallowed Card Issuer Code DCIL Design Compatible Issue Lineup DCIS Direct Common-Channel Interoffice Signaling DCIU Data Channel Interface Unit DCIU Data Communication Interface Unit DCK A Derived Cipher Key DCK Derived Cipher Key DCL Declaration DCL Delayed Call Limit DCL Digital Command Language DCLCAD Direct Call Logical Channels Assigned to D-Channel DCLCANUPB Direct Call Logical Channels On Nailed-Up B-Channels DCLCAODB Direct Call Logical Channels On On-Demand B-Channels DCLID Dialable Calling Line Identification DCLU Digital Carrier Line Unit DCM Data Collection Management DCM Dial-Code Management DCM Digital Carrier Module DCM Digital Controller Module DCM Dispersion Compensation Module DCM Dynamic Connection Management DCM-B Digital Carrier Module-Basic DCMD Data MMU/Cache Command Register DCME Data Circuit Multiplication Equipment DCME Digital Circuit Multiplexing Equipment DCME Digital Circuit Multiplication Equipment DCMG DCME Gain DCMPAC Digital Carrier Module Pretest and Cutover DCMPMC D-Channel Message Performance Monitoring and Control DCM-R Digital Carrier Module-Remote DCMS Digital Circuit Multiplication System DCN Data Communication(s) Network DCN Design Change Notification DCN DisCoNnect DCND DTMP Calling Number Delivery DCO Data Central Office DCO Demand Continuity Outgoing DCO Dial Central Office DCO Digital Central Office DCO-EPN Data Central Office-End Point Number DCOFF Designated Control Office DCOM Distributed Component Object Model DCOMIS Dial Central Office Management Information System DCOP Digit Collection and Outpulsing DCOSW Electronic Switching: Digital Central Office Systems of the World; Amos E. Joel Jr.; IEEE Press, 1982 DCOT Digit Collection and Outpulsing Team DCOT Digital Central Office Terminal DCP Data Communications Processor DCP D-Channel Processor DCP Device Control Protocol DCP Digital Communications Protocol DCP Direct Connect Partner DCP Directed Call Pickup DCP Distributed Collaborative Planning DCP Drop and Continue on Protection DCPA Distributed Call Processing Architecture DCPBH Double Channel Planar Buried Heterostructure (laser diode) DCPK Directed Call Park DCPL DCT Programming Language DCPN Domestic Customer Premises Network DCPSK Differential Coherent Phase Shift Keying DCPT Data Communication Between Different Protocol Terminals DCPU Directed Call Pickup DCPU Directed Call Pick-Up Non-Barge-In DCPU/BI Directed Call Pick-Up with Barge-In DCPX Directed Call Pickup Exempt DCR Data Conversion Receiver DCR DC Voltage On Ring DCR Degradation Category Rating DCR Design-Change Recommendation DCR Destination Call Routing DCR Destination Control Request signal DCR Digit Collection Resource DCR Directory Charge Recording DCR Dummy Call Reference DCR Dynamic Conformance Requirement DCR Dynamic Context Reference DCR Dynamically Controlled Routing DCS Data Collection System DCS Data Communication Subsystem DCS Data Communications Synchronization DCS Defense Communications System DCS Defined Context Set DCS Defined Context Set (OSI-PL) DCS Desktop Color Separation DCS Device Control String DCS Digital Cellular Switch DCS Digital Cellular System DCS Digital Channel System DCS Digital Clock Source DCS Digital Command Signal DCS Digital Communications System DCS Digital Control System DCS Digital Crossconnect System DCS Digitally Coded Squelch DCS Distributed Communication System DCS Distributed Control System DCS Document Control Standard DCS Dynamic Channel Selection DCS Dynamic Configuration Select DCS 1800 Digital Cellular System working at 1800 MHz DCS1800 Digital Communications System- 1800 MHz DCS1900 Digital Communications System- 1900 MHz DCSC Data Customer Support Center DCSM Digital Cell Site Monitor DCT Data Call Tester DCT Data Capture Tool DCT DC Voltage On Tip DCT Digit Collection Apply Tone DCT Digital Call Tester DCT Digital Carrier Trunk DCT Digital Communications Test System DCT Digital Cordless Telephone DCT Digital Cross-Connect Trunk DCT Discrete Cosine Transform (compression alg./CCITT) DCT Dispatcher Control Table DCT Display Compression Technology DCTB Disconnected, Call Being Taken By DCTL Data MMU/Cache Control Register DCTL Direct Coupled Transistor Logic DCTL Direct-Coupled Transistor Logic DCTN Defense Commercial Telecommunications Network DCTS Destination Code Traffic Summary DCTS Digital Cellular Time Switch DCT-S Digital Communications Test System-SPARCstation DCTU Directly Connected Test Unit DCU Data Control Unit DCU Data-Cache Unit DCU Digit Collection Utility DCU Dispersion Compaction Unit DCU Drum Control Unit DCUG DMS Centrex Users Group DCW Data Code Word DCW Detailed Call Walkthrough DCW Detailed Call Walkthru DCW Dial Call Waiting DCW Display Call Waiting DCW Drop and Continue on Working DD Data Definition DD Data Descriptor DD Data Dictionary DD Data Distributor DD DDOC Section: Design Description DD Deferred Delivery DD Definition List Description (HTML tag) DD Delay Dial DD Detailed Design DD Diagnostic Driver dd Didot DD Digital Data DD Digital Design (periodical) DD Digital Display DD Direct Dial DD Direct Dialed DD Direct Dialing DD Discriminating Digit DD Double Density Dd Double density DD Double Dispatching DD ISO country code for German Democratic Republic (obsolete) DDA Defined Display Area DDA Digital Differential Analyzer DDA Digital Directory Assistance DDA Domain-Defined Attribute DDA DSP Design Association DDB Device-Dependent Bitmap DDB Display Data Block DDB Distributed Data Base DDB Distributed Database DDBI DD/Billing-System Interface DDBM(S) Distributed Data Base Management (System) DDC Decimating Down Converter DDC Digital Data Channel DDC Digital Data Connectivity DDC Digital Downconversion DDC Direct Digital Control DDC Disk Drive Controller DDC Display Data Channel DDC Distributed Database Coordinator DDC1 Display Data Channel 1 DDC2B Display Data Channel 2B DDCA Dynamic Distributed Channel Assignment DDCE Digital Data Conversion Equipment DDCF Distributed Document Component Facility DDCMP Digital Data Communication Message Protocol (DEC) DDCMP Digital Data Communications Message Protocol DDCS Distributed Database Connection Services DDD Data Display Debugger DDD Digital Diagnostic Disk DDD Direct Distance Dialling DDD Double-Diffused Drain (FET structure) DDE Direct Data Entry DDE Distributed Debugging Environment DDE Dynamic Data Exchange DDEML Dynamic Data Exchange Management Library DDES Direct Data Exchange System DDF Data Deviation File DDF Data Distribution Framework DDF Digital Distribution Frame DDF MDII: No Start Dial- Delay Dial, Steady Off-Hook DDFA DTC Device File Access DDGL Device Dependent Graphic Layer (TOP) DDI Data Server/DPMS Interface DDI Device Driver Interface DDI Direct Dial In DDI Direct Dialling In (supplementary service) DDI Direct Digital Interface DDIE Direct Digital Interface Equipment DDIS Data Distributor DDJ Dr. Dobb's Journal (periodical) DDJST Dr. Dobb's Journal of Software Tools (periodical) DDK Device Driver Kit DDK Driver Development Kit DDL Data Definition Language DDL Data Description Language DDL Derived Data Link DDL Digital Data Link DDL Digital-system Design Language DDL Drive and Directory List DDLC Digital Data Line Card DDLC Double-Density Linecard DDLC Dual Data Link Controller DDM Data Distribution Manager DDM Data Distribution Model DDM Digital Data Multiplexer DDM Direction Division Multiplexing DDM Directional-Division Multiplexing DDM Distributed Data Management DDM Distributed Data Management architecture DDM Distributed Data Manager DDM Distributed Data Model DDMA Distributed DMA DDMA Dual Direct Memory Access DDME Design Delivery Management Environment DDMS DMS Data Management System DDN Data Directory Number DDN Data-Driven Network DDN Defense Data Network (DoD) DDN Destination Directory Number DDN Dialable Directory Number DDN Dialable Number Delivery DDNA Destination DNA DDNS Dynamic Domain Naming Services DDO Denial Decision Object DDO Direct Dial Overseas DDO Dynamic Data Object DDOC Design Document DDOV Digital Data Over Voice DDP Data Delivery Protocol DDP Datagram Delivery Protocol DDP Digital Data Processor DDP Distributed Data Processing DDR Digital Data Receiver DDR Digital Distribution Rack DDR Double Data Rate DDS Dataphone Digital Service (ISDN) DDS Digital Data Service DDS Digital Data Storage DDS Digital Data System DDS Digital Display Scope DDS Direct Digital Synthesis (signal generator) DDS DMS Debug System DDS DMS Debugging System DDS-3 Digital Data Storage-3 DDSBS Duplex Dual-Serial Bus Selector DDSN Digital Derived Services Network DDT Default Distribution Tree DDT Delayed Dialing Tone DDT Detailed Design Team DDT Digital Data Transmitter DDT Dynamic Debugging Tool DDU Dialogue Data Unit DDU Digital Data Unit DDU Disk Drive Unit DDU Diskette Drive Unit DDV Dialog Data Validation DDX Dialog Data Exchange DDX Digital Data Exchange DDX-C Digital Data Exchange Circuit-switched DDX-P Digital Data Exchange Packet-switched DE Data Element DE Data Element (FTAM) DE Data Entry DE Data-Execution DE Decision Element DE Design Estimate DE Designated Entity DE Destination Exchange DE Development Estimate DE Discard Eligibility DE Discard Eligible DE Display Element DE Display Enable DE Display Equipment DE Domestic Environment DE Draft European telecommunication standard (ETSI) de Internet country code for Germany DE ISO country code for Germany DE U.S. postal code for Delaware DEA Data Encryption Algorithm DEA Data Encryption Algorithm (DoD) DEA Deactivation DEA Delete Authcode DEAF Default Error Action Flag DEB Demand-Established B-Channel DEC Decimal DEC DEClination DEC DECrement DEC Decrementer Register DEC Digital Equipment Corporation (now Digital) DEC Digital Exchange Controller DECCO Defense Commercial Communications Office DECNET Digital Equipment Corporation Network DECPSK Differentially Encoded Coherent Phase Shift Keying DECT Digital Enhanced Cordless Telecommunications DECT Digital European Cordless Telecommunications DECT Digital European Cordless Telephone DECUS Digital Equipment Computer Users Society DED Distant End Disconnect DEE Data Encryption Equipment DEE Datenendeinrichtung (Data Terminal Equipment) DEF Definition DEF Destination Element Field DEF Module Definition File DEFOML Default Overload Messaging Limit DEG Datenendgerat (Data Terminal) deg Degrees DEK Dansk Elektroteknisk Komite (DEN) DEK Data-Encrypting Key DEKITZ Deutsche Ko-ordinierung fur IT-Normen konformitatsprufung und Zertifizierung DEL Decode Encode Language DEL Delete DEL Delete line from hunt group DEL Deloaded DEL Direct Exchange Line DELCF Delete Casual Feature DELPH Delete Packet Handler Options DELTA Development of European Learning through Technological Advance DEM Digital Elevation Model DEMKO Denmarks Elektriske MaterielKOntrol (DK) DEMO Demonstration DEMOD DEMODulator DEMS Digital Electronic Messaging Service DEMUX Demultiplexer DEMUX DEMUltipleXer DEN Directory Enabled Networks DEO Delete Option(s) DEO Delete Order DEO Digital End Office DEPIC Dual Expanded Plastic Insulated Conductor DEQPSK Differentially-Encoded Quadrature Phase Shift Keying DER Data Exception Report DER Distinguished Encoding Rules DES Data Encryption Standard (IBM) DES Destination End Station DES Destination End System DES Diagnostic Error Signaling des Diagnostic Error Signaling DES Digital Echo Suppressor DES Digital Encryption Standard DES Discrete Event Simulation DES Distributed End System DESA Dual Emergency Stand-Alone DESC Defense Electronic Supply Center DESC Defense Electronic Supply Center (United States Military) DESC Descriptor DESC Design Environment Steering Committee DESC Development Environment Standards Committee DESC Development Environment Steering Committee DESCBC DES Chain Block Coding DESE DES Encryption Protocol DESECB DES Electronic Code Book DESEP Destination Separations Class DESS Data Engineering Support System DEST Destination DET Design Effectiveness Tools DET Detach DET DETach DET DETector DEV Deviation DEV Device DEVCO ISO council DEVelopment COmmittee DEW Distant Early Warning system (US/Canada Military Radar System) DF Data Fanout DF Data Field DF Design File DF Design Finished DF Diagnostic Fault DF Digital Filter DF Direction Finding DF Direction Flag DF Distributing Frame DF Distribution Function DF Don't Fragment flag DFA Dedicated File Area (Multijob) DFA Deterministic Finite Automaton DFA DXI Frame Address DFAD Dual Facility Access Digroup DFARS Defense Federal Acquisition Regulations DFB Distributed Feedback DFB Distributed FeedBack (laser diode) DFC Data Flow Control DFC Design for Characterization DFC Destination Function Code DFC Disk File Controller DFD Data Flow Diagram DFD Displaced Frame Difference DFE Decision Feedback Equalization DFE Decision Feedback Equalizer DFE Design for Environment DFE Direct Forward Equalizer DFF Data Flow Function DFG Data Flow Graph DFG Deutsche Forschungsgemeinschaft DFG Difference Frequency Generation DFI Design For Installability DFI Digital Facility Interface DFI Digital Fiber Interface DFI Direct Fiber Interface DFI Domain-Specific Format Identifier DFI Domain-Specific Part Format Identifier DFIL Data Fill DFIR Diffused Infrared DFK Definable Function Key DFLT Default DFLTSC Default Source DFM Design for Manufacturability DFM Digital Frequency Modulation DFMS Digital Facility Management System DFN Defining Instance (HTML tag) DFP Digital Filter Processor DFP Digital Flat Panel DFP Distributed Functional Plane DFR Default Rate DFR Document Filing and Retreival (OSI-AL) DFS Depth-First Search DFS Distributed File Service DFS Distributed File System DFSA Deterministic Finite State Automata DFSE Decision Feedback Sequence Estimator DFSG Direct Formed Supergroup DFSK Double Frequency Shift Keying DFSM Deterministic Finite State Machine DFSM Dispersion Flattened Single Mode DFT Demand Flow Technology DFT Design for Test DFT Design for Testability DFT Diagnostic Function Test DFT Digital Facility Terminal DFT Discrete Fourier Transform DFT Discrete Fourier Transformation DFT Display Focus Team DFT Distributed Function Terminal DFT Distributed Functional Terminal DFT Distribution Functional Terminal (IBM) DFT DPNSS Feature Transparency DFT DraFT DFTI DMOPRO File Transfer Interface DFU Data File Utility DFU Digital Facilities Unit DFWMAC Distributed Foundation Wireless Media Access Control DG Data General DG Datagram DG Differential Gain DG Directorate General (CEC) DGA Device Group Actor DGCEL Digital Cellular DGCRA Dynamic GCRA DGIII Directorate General III (of the CEC) DGN Diagnostic DGNA Dynamic Group Number Assignment (TETRA) DGND Digital GrouND DGP Digipulse DGP Dissimilar Gateway Protocol dGPS differential GPS DGPT General Department of Post and Telecommunications DGR Digroup DGT Digital Graphic Terminal DGT Digitone DGT Direccion General de Telecomunicaciones (E) DGT Directorate General of Telecommunications DG-UX Data General Unix DGXIII Directorate General XIII (of the CEC) DH Data Register High Half DH Diffie-Hellman DH Directed Handoff DH Double Heterostructure D-H Diffie-Hellman DHA Dialogue Handling DHA Direct Hardware Access DHC Dynamic Host Configuration DHCF Distributed Host Command Facility (NetView) DHCP Domain Host Control Protocol DHCP Dynamic Host Configuration Protocol DHI Dual Host Interface DHN Digital Home Network DHR Dynamic Hierarchical Routing DHT Define Huffman Table DHT Diversity Handover Trunk DHTML Dynamic HTML dHTML Dynamic HTML DHUG Dynamic High Usage Group DI Data In DI Data Interface Di Data Inverted DI Deactivate Indication DI Decrementer Interrupt DI Design Inspection DI Design Interpretive DI Destination Index DI Dielectric Insulation DI Dielectric Isolation DI Direct Index DI Disable Interrupt DI Document Index DI Draft Interface DI Draft Interfaces Available DI Draft Interim European Telecommunication Standard (ETSI) DIA Document Interchange Architecture (IBM) DIA Document Interchange Format (IBM-LU6.2) DIA DSP Interface ASIC DIAC DIode-Alternating-Current-switch DIAG DIAGnostic element DIAG Diagnostic Output System DIAG Diagnostics DIAGN Diagnostics DiagPl Diagnoseplatz (Diagnosis Station) DIALAN DMS Integrated Access Local Area Network DIANE Direct Information Access Network for Europe DIB Device-Independent Bitmap DIB Directory Information Base (X.5OO) DIB Dual Independent Bus DIBL Drain-Induced Barrier Lowering DIBOL DEC Business Oriented Language DIC Delay Interval Compensation DIC Digital Concentrator DIC Direct InterLATA Connecting DICAN Digital Customer Access Network DICE Digital Circuit Emulation DICP Digital Integrated Cellular Peripheral DICT Direct InterLATA Connecting Trunk DID Data Identifier DID Data Item Description DID Design Intent Document DID Digital Information Display DID Direct Inward Dial DID Direct Inward Dialing DID Directory Identifier DIDD Deny International Direct Dial DIDDNR DID Directory Numbers Range DIDRTI DID Route Index DIDTC D-Channel Incoming Default Throughput Class DIEL Advisory Committee on Telecommunications for Disabled and Elderly People (UK) DIF Data Interchange Format DIF Differential Backup Catalog File DIF Digital Interface DIF Digital Interface Format DIF Digital Interface Frame DI-FET Dielectric Isolation Field Effect Transistor DIFS Distributed Coordination Function Interframe Space DIG Digit Collection DIG Digits dig Domain Information Groper DIG3610 3/6/10 Digit Trigger DIG4 Digital 4-Wire Trunk DIGCOL Digit Collection DIGL Device Independent Graphics Layer (TOP) DIGS Device Independent Graphics Service (TOP) DII Dynamic Invocation Interface DIL Device I/O Library DIL Dual-in-Line DIM Desktop Information Manager DIM DIMension DIMA Direct Inward Mobile Access DIMM Dual In-Line Memory Module DIMPS D-Channel Incoming Maximum Packet Size DIN Denied Incoming DIN Deutsche Industrie-Norm/Deutches Institut fuer Normung DIN Deutsche Industry Norm (German Industry Standard) DIN Deutsches Institut für Normung e. V. DINA Direct Inward Network Access DINA Distributed Information-Processing Network Architecture DINE Denied Incoming Exempt DIO Data In/Out (IEEE-488 Bus Signal) DIO Device Input/Output DIO Direct Input/Output DIO Discrete Input/Output DIOB Data Input/Output Buffer Register DIOCES Distributed Interoperable and Operable Computing Environments and Systems DIOSS Distributed Office Support System DIP Data Interchange Protocol DIP Data Interface Process DIP Document Image Processing DIP Dual In-Line Package DIP Dual In-line Package DIR Direction DIR Directory DIR Directory List (HTML tag) DIRM Directory Maintenance DIRP Device Independent Recording Package DIRT Design Inspection Reporting Tool DIS Development Information System DIS Digital Identification Signal DIS Digital Interface System DIS Disconnect DIS Distributed Interactive Simulation DIS Draft International Standard DIS Driver Information System DIS Dynamic Impedance Stabilization DIS The Disney Channel DISA Defense Information Systems Agency DISA Direct Inward System Access DISC Device for Integrated Surveillance and Control DISC Digital International Switching Center DISC Disconnect DISC Disconnect message DISCD Disconnected DISCTO Disconnect Timeout DISD Discrimination Digit DISH Data Interchange in Shipping DISOSS Distributed Office Support System DISOSS DIStributed Office Support System (DCA/IBM) DISP Directory Information Shadowing Protocol DISP Display DISP DISPlay Information Element DISPH Displayphone DISPID Display Identification DISTRING Distinctive Ringing DISTXT Display Text DISU Digital International Switching Unit DIT Depth of Inheritance Tree DIT Digital Input (editing) Terminal DIT Directory Information Tree DITEC DIgital Television EnCoding DIU Data Interface Unit DIU Deutsche ISDN Unit DIU Digital Interface Unit DIU Digital Interworking Unit DIU Document Interchange Unit (IBM-LU6.2) DIV Data-In-Voice DIV Digital Interactive Video DIV Digitale Vermittlungsstelle (Digital Switching Exchange) DIV Digitale Vermittlungstechnik (Digital Switching Technology) (Digital Exchange) DIV Digitales Vermittlungssystem (Digital Switching System) DIV DIVision DIVA Data Inquiry-Voice Answer DIVA Digital Input-Voice Answerback DIVA Digitale Vermittlungstechnik fuer den Auslandsferndienst (International Digital Exchange) DIVA Digitale Vermittlungstechnik fur den internationalen Ferndiens (International Digital Exchange) DIVF Digitale Vermittlungstechnik fuer den Ferndienst (Digital Switching Technology for Long Distance) DIVF Digitale Vermittlungstechnik fur den nationalen Ferndienst (Tandem Digital Exchange) Divine Digital Video Narrowband Emission DIVO Digitale Ortsvermittlungsstelle (Local Digital Exchange) DIVO Digitale Vermittlungstechnik fur den Ortsdienst (Local Digital Exchange) DIVO Local Digital Switch DIVOdg Digitale Vermittlungstechnik fur den Ortsdurchgang (Local Tandem Exchange) DIVOT DIgital to VOice Translator Divx Digital Video Express DIX D-Channel Index DIX DEC- Intel- Xerox Corp. DIX DEC/Intel/Xerox DJ Double-Jump DJ ISO country code for Republic of Djibouti DJN/R Dow Jones News/Retrieval DK Datakit DK ISO country code for Kingdom of Denmark DKE Deutsche Elektrotechnische Kommission im DIN und VDE (D) DKI Driver-Kernel Interface DKM DV-Strom Kontroll-Modul DKO Delete Key Option DKS Digital Key System DL Data Link (layer) DL Data Link Layer Service DL Data Register Low Half DL Decode Level DL Definition List (HTML tag) DL Delete Line DL Dial Level DL Digital Line DL Digital Link DL Discrete Listening (TETRA) DL Distance Learning DL Distribution List DL Download DL Network Layer (Layer 3)-Data Link Layer (Layer 2) Interface DL- communication between layer 3 and Data Link layer DL/I Data Language No.1 DLA Data Looparound DLA Delayed Acknowledgement DLA Digital Line Extender DLANN Delay Announcement DLANN2 Delay Announcement 2 DLANN3 Delay Announcement 3 DLANN4 Delay Announcement 4 DLBB Data Layer Building Block DLC Data Line Card DLC Data Link Connection DLC Data Link Connections DLC Data Link Control DLC Data Link Control protocol (ANSI) DLC Data Link Controller DLC Datapath Line Card DLC Digital Channel DLC Digital Line Card DLC Digital Link Control DLC Digital Loop Carrier DLC Dynamic Load Control DLC Signaling-Data-Link-Connection-Order Signal DLCB Data Link Control Block DLCC Data Link Control Chip DLCEI Data Link Connection Endpoint Identifier DLCF Data Link Control Field DLCI Data Link Connection Identifier (ISDN/LAPD) DLCI Digital Loop Carrier Interface DLCL Data Line CLock (Video VPS) DLCMI Direct Link Connection Management Interface DLD Data Link Discriminator DLD Display List Driver dld Dynamic Loader DLE Data Latch Enable DLE Data Link Entity DLE Data Link Escape (Character) DLE Data Link Event DLE Digital Local Exchange DLE Digital Loop Electronics DLE Direct Line Equipment DLE Dynamic Lightpath Establishment DLEI Data Link Endpoint Identifier DLG Dialog DLG Dialog File DLH Data Link Handler DLH Distributed Line Hunt(ing) DLI Data Link Identifier DLI Data Link Interface DLI Digital Line Interface DLI Dual Link Interface DLL Data Link Layer DLL Data Link Layer (OSI) DLL Delay-Locked Loop DLL Dial Long Line DLL Digital Local Line DLL Dynamic Link Library DLL Dynamically-Linked Library DLLCC DLL & C Connect DLM Data Line Module DLM Data Link Connection Order Message DLM Data Link Manager DLM Data Link Module DLM Digital Line Module DLM Signaling-Data-Link-Connection-Order Message DLMAP Data Link Map DLMKS Data Line Module Key Set DLO Data Line Occupied DLOG Disk Logs DLP Data Line Protector DLP Data Link Processor DLP Decode Level Point DLP Dienstleistungsprozesse DLP Digital Light Processing DLP Digital Light Processor DLPI Data Link Provider Interface DLR Design Layout Record DLR Design Layout Report DLR Digital Locate Receiver DLRR Digital Loop Replacement Radio DLS Data Link Service DLS Data Load Segment DLS Digital Line System DLS Distance Learning Service DLS Downloadable Sample DLSAP Data Link Service Access Point DLSC Digital Local Switching Center DLSDU Data Link Service Data Unit DLSE Dial Line Service Evaluation DLSO Dial Line Service Observing DLSw Data Link Switching DLT Data Linkage Table DLT Delete DLT Digital Line Termination DLT Digital Linear Tape DLT Digital Loop Transceiver (ISDN) DLTS Deep-Level Transient Spectroscopy DLTS Direct Line Telephone System DLTU Digital Line and Trunk Unit DLTU Digital Line Trunk Unit DLU Dialog Unit DLUR Dependent Logical Unit Requester DLUS Dependent Logical Unit Server DLVBLTYP Delivery Features Billing Records Type DLVFEAT ISDN Delivery Features Toggle DLVFEATACC ISDN Delivery Features Business Group Access Codes DLVFEATRC ISDN Delivery Features Restricted Control DLVFEATRCAM ISDN Delivery Features Restricted Control for Analog Member of EKTS DLYOP Delayed Outpulsing " Dm Control Channel (ISDN terminology applied to mobile service) " DM Data Manager DM Data Mark DM Data Memory DM Data Mode DM Data Modem DM Data Modification DM Data Multiplexer Dm Data-Mobile Channel DM Degraded Minute(s) DM Delta Modulation DM Derived MAC sublayer DM Design Manager DM Desirability Measure DM Desktop Management DM Deutsche Mark DM Device Management DM Device Manager DM Diagnostic Manager DM Diagnostic Monitor DM Dienstmerkmal (Service Feature) DM Differential Mode DM Digital Milliwatt DM Digital Modem DM Direct Mode (TETRA) DM Disconnect Mode (HDLC, LAPB) DM Disconnected Mode DM Distribution Manager DM Distribution Manager (NetView-IBM) DM Domain Model DM ISO country code for Commonwealth of Dominica DMA Deferred Maintenance Alarm DMA Direct Memory Access DMA0 Data Memory Address Register 0 DMA1 Data Memory Address Register 1 DMA2 Data Memory Address Register 2 DMAC Direct Memory Access Controller DMAI Direct Memory Access Interface D-MAP D-field MAP DMB D-Channel Maintenance Busy DMB Disconnect and Make Busy DMC DMS Maintenance Controller DMC Dual Modem Card DMC Dynamic Memory Controller DMCL Device Media Control Language DMCT Denied Malicious Call Termination DMCT Deny Malicious Call Termination DMD Development Management Document DMD Differential Mode Delay DMD Digital Micromirror Device DMD Digital Micromirror Display DMD Directory Management Domain DMD Dot-Mapped Display DMD0 Data Memory Data Register 0 DMD1 Data Memory Data Register 1 DMD2 Data Memory Data Register 2 DMDD Distributed Multiplexing Distributed Demultiplexing DMDR DPN Management Data Router DME Data Modem Extension DME Direct Memory Execution DME Distance Measuring Equipment (Avionics) DME Distributed Management Environment (OSF) DMERT Dual Multi-Environment Real Time DMERT Duplex Multi-Environment Real Time DMF DAT Management Function DMF Display Management Format DMF Distribution Media Format DMH Data Message Handler DMH Data Message Handling DMI Data Management Interface DMI Data Mode Idle DMI Definition of Management Information DMI Desktop Management Interface (group) DMI Digital Multiplexed Interface DMI Disable Manual Input DMI Distributed Management Interface DMIS Dimensional Measuring Interface Specification V.2 (OSI) DMIS Directory Management Information System DML Data Manipulation Language DMM Device Maintenance Manager DMM Digital Multi-Meter DMMU Data Memory Management Unit DMNI/RCR Digital Mobile Communications Network Internode/Radio Center for Research DMO Data Modification DMO Data Modification Order(s) DMO Domain Management Organization DMODEM Digital Modem DMOPRO Data Modification Order Processor DMOPRO Data Modification Orders Process DMOS Degradation Mean Opinion Score DMOS Diffused Metal Oxide Semiconductor DMP Development Management Process DMP Document Management Procedure DMP Dot Matrix Printer DMPDU Derived Medium access control Protocol Data Unit DM-PDU Derived MAC Protocol Data Unit DMR Demultiplexing/Mixing/Remultiplexing DMR Digital Microwave Radio DMR Digital Mobile Radio DMRV Fifth Nordic Seminar on Digital Mobile Radio Communications DMS Data Management System DMS Defense Message System DMS Defense Messaging System DMS Digital Multiplex System DMS Document Management System DMS Domain Management System (Siemens) DMS ES DMS Expert System DMSD Digital Multistandard Coding DMSE DMS Evolution DMSES DMS Expert System DMS-MTX DMS Mobile Telephone Exchange DMS-NMS DMS Network Management System DMS-NSS DMS-Network Services System DMSPH DMS-100 Packet Handler DMS-PH DMS Packet Handler DMSPL DMS Product Library DMSRID Default MSRID DMSU Digital Main Switching Unit DMT Digital Multiplex Terminal DMT Discrete Multitone DMT Dynamic Matrix Testing DMT0 Data Memory Transaction Register 0 DMT1 Data Memory Transaction Register 1 DMT2 Data Memory Transaction Register 2 DMTF Desktop Management Task Force DMTF Desktop Management Task Force DMTM Data Management and Transmission Module DMTS Distinguished Member of Technical Staff DMU Data Memory Unit DMV Dynamically Managed Voice DMW Digital Milliwatt DMXR Demultiplexer DMZ Demilitarized Zone DN Delivery Notification DN Destination Network DN Developer Network DN Dialing Number DN Directory Number DN DiscoNnect DN Distinguished Name DN/CT Directory Number/Call Type DNA Data Network Address DNA Deutschen Normenausschuss DNA Digital Network Architecture (DEC) DNA Distributed Network Architecture (NCR) DNA Dynamic Network Architecture DNA FS Distributed Internet Applications for Financial Services DNAPI Directory Number Appearance ID DNB Directory Number Bridging DNBAM DN Bridging for Analog Member of EKTS DNBD Deutsches Network Broadcasting Delivery DNBFC DNB for EKTS or Flexible Calling for Non-EKTS DNC Digital Node Controller DNC Direct Numerical Control DNC Directory Number Check DNC Directory Number Contention DNC Do Not Collect DNC Dynamic Network Control DNC Dynamic Network Controller DNCAP Directory Number/Call Appearance DNCP DECnet Control Protocol DNCT Directory Number/Call Type DND Data Network Division DND Department of National Defence DND Dialable Number Delivery DND Directory Number Dependent DND Do Not Disturb (supplementary service) DNDG Do Not Disturb- Group DNDGX Do Not Disturb, Selected-Group Station Diversion DNDI Do Not Disturb- Individual DNEC Digital Network Echo Control DNF Disjunctive Normal Form DNG Dynamic Network Gateway DNH Directory Number Hunt(ing) DNHD Directory Number High and Dry DNHR Dynamic Non-Hierarchical Routing DNI Data Network Interface DNI Deny National and all International DNI Digital Network Interconnect(ing) DNI Digital Network Interface DNI Digital Non Interpolation DNI Directory Number Independent DNIC Data Network Identification Code DNIC Data Network Identifier DNIC Digital Network Interface Circuit DNID Deny National and International Direct Dial DNIS Dialed Number Identification Service DNL Differential Non-Linearity (Analogue-Digital Converters) DNN Data Network Number DNP Directory Number Profile DNPA Data Numbering Plan Area DNPC Directory Number Primary Inter-LATA Carrier DNPC Dual Network Packaged Core DNPIC Directory Number Primary InterLATA Carrier DNR Directory Number Reference DNR Domain Name Resolver DNR Dynamic Noise Reduction DNS Data Network System DNS Distributed Name Service (DSM-Tandem) DNS DN Set DNS Domain Name Server DNS Domain Name Service DNS Domain Name System (TCP/IP-DoD) DNSIX Defense Network Secure Information Exchange DNSP Distributed Networked Services Platform DNSS DN Screening Set Option DNT Dialed Number Trigger DNTR Denied Termination Treatment DNTU Digital Network Terminating Unit DNTX Do Not Transmit DNTYP Multiline Hunt Terminal Type DNU Digital Networking Unit DNU Do Not Use DNUI Directory Number User Interface DNUS Digital Network Unit-SONET DNU-S Digital Networking Unit-SONET DNW DECT NetWork DNX Digital Network Crossconnect DO Data Out DO Data Output DO Database Owner DO Denied Origination DO Derived Object DO Design Objective DO Disallowed Operation DO Distributed-Object DO ISO country code for Dominican Republic DoA Date of Announcement DOA Dead On Arrival DOA Direction of Arrival DOAS Dial Out Attribute Selector DOC Declaration of Conformity DOC Department of Commerce DOC Department of Communications DOC Distributed Object Computing DOC District Operations Center DOC Document File DOC Drop-Out Compensation (Video Tape Recorder) DOC Dynamic Overload Control DOCAT Digital Optical CAble-television Trunk system DoD Department of Defense DoD Department of Defense (USA) DOD Direct Outward Dial DOD Direct Outward Dialing DODTC D-Channel Outgoing Default Throughput Class DoE Demonstration of Equivalence DOE Department of Energy DOE Distributed Object Environment DOE Distributed Objects Everywhere DOEORB DOE Object Request Broker DOF Data Order File DOF Degrees of Freedom DOHB Draw-Off/Hold-Back DOI Department of Industry DOI Depth of Inheritance DO-I ISDN Denied Origination DO-ID Derived Object Identifier DOJ Department of Justice DOM Distributed Operational Measurements DOM Document Object Model DOM Domain Object Model DOME Distributed Object Management Environment DOMF Distributed Object Management Facility DOML Default Overload Messaging Limit DOMPS D-Channel Outgoing Maximum Packet Size DOMSAT Domestic Satellite DON Digital Overlay Network DOORS Dynamic Object Oriented Requirements System DOOS Dependent Out-of-Service DoP Date of Publication (ETSI) DOP Dilution of Precision DOP Direction of Projection DOP Directory Operational binding management Protocol DOPSK Differential Offset Phase Shift Keying DOR Date Of Ratification DOR Dead Office Recovery DOR Denied Origination DOR Denied Origination Treatment DOR Digital Optical Recording DOR Division of Revenue DORG Denied Origination DORS Dial Out Routing Server DoS Denial of Service DOS Directory & Operator Services DOS Disk Operating System DOS/VS Disk Operating System/Virtual Storage DOSBS Data Over Speech Bearer Service DOSF Distributed Office Support Facility (IBM) DOSX DOS Extender DoT Department of Telecommunications DOT Distributed Object Technology DOT Document Template File DOTS Digital Office Timing Supply DOUS Digit Outpulser Utility Service DOV Data Over Voice DOV Data Over Voice DoW Date of Withdrawal (ETSI) DP Data Partitioning DP Data Port DP Data Processing DP Dataport DP Delivery Process DP Demarcation Point DP Designer Productivity DP Detection Point DP Diagnostic Port DP Dial Pulse DP Dial Pulsing DP Dial/Dialled Pulse DP Dialing Plan DP Dialled Pulse DP Dialog Processor DP Differential Phase DP Digital Potentiometer DP Digital Press DP Distribution Point DP Diverse Protection DP Diversely Protected DP Document Parameters dp Dot Pitch (typically expressed in mm) DP Double Pole DP Draft Proposal DP Dual Processor DPA Demand Protocol Architecture (3COM) DPA Destination Physical Address DPA Destructive Physical Analysis DPA Dial Pulse Access DPA Dual Power Amplifier DPAC DATAPAC DPATH Data Path DPB Drive Parameter Block DPBX Digital Private Branch Exchange DPC Data Packet Collector DPC Data Processing Center DPC Deferred Procedure Call DPC Destination Point Code DPC Digital Port Card DPC Digital Private Circuits DPC Distributed Persistent Cache DPC Double Purpose Connector DPC Dynamic Power Control DPCA Defect Prevention and Corrective Action DPCC Dual Plane Combined Cabinet DPCC Dual Plane Combined Core DPCC Dual Plane Core Cabinet DPCM Differential Pulse Code Modulation DPCP DECnet Phase IV Control Protocol DPCTH Dynamic Power Control Threshold-High DPCTL Dynamic Power Control Threshold-Low DPD Differential Phase Detector DPD Display Digits DPDT Double-Pole Double-Throw DPE Data Processing Equipment DPE Direct Plate Exposure (Printing) DPE Distributed Processing Environment DPE Distributed Programming Environment DPE Dynamic Pool Extender DP-EX Data Port Extender DPI Digital Phone Interface dpi Dots Per Inch DPI Dots Per Inch DPIB Directed Call Pickup Billing Records DPKTGP D-Channel Packet Group DPL Descriptor Privilege Level DPL Digital PowerLine DPLL Digital Phase-Locked Loop DPLM Domestic Public Land Mobile DPLMRS Domestic Public Land Mobile Radio Service DPM Defects Per Million DPM Digital Phase Modulation DPM Documents Per Minute DPM Downtime Performance Measurement DPM Dynamic Power Management DPMC Dual Port Message Controller DPMI DOS Protected-Mode Interface DPMS Data Processing and Management System DPMS Display Power Management Signaling DPMS DOS Protected Mode Services DPN Data Packet Network DPN Digital Packet Network DPN Digital Path Not Provided message DPN Digital Path Not provided signal DPN Directed Call Pickup- Non Barge-in DPNACC Directed Call Pickup Non-Barge-In Access Code DPNB Directed Call Pickup Non-Barge-In Billing Records DPNS Digital Private Network Signaling DPNSS Digital Private Network Signalling System (BT) DPNX Directed Call Pickup Exempt DPO Data Path Object DPO Dial Pulse Originating DPP Data Processing Peripheral DPP Defect Prevention Process DPP Distributed Preplan DPP Distributed Processing Peripheral DPPS Data Packets Per Second DPPS Data Post-Processing System DPR Data Unit Profile DPR Detailed Privacy Recording DPR Digit PResent DPR Dual Port RAM DPRAM Dual Port Random Access Memory DPRG Data Population Rule Generation DPRI Delay Priority DPS Data Processing System DPS D-Channel Packet-Switched DPS Design and Prototyping Services DPS Display PostScript DPSK Differential Phase Shift Keying DPST Double-Pole Single-Throw DPT Dial Pulse Terminating DPT Different Premises Telephone DPT Drive Parameter Tracking DPTC Dual Processor Terminal Controller DPU Direct Pick-Up DPU Directed Call Pickup- Barge-in DPU Display Processing Unit DPUACC Directed Call Pickup Barge-In Access Code DPUB Directed Call Pickup Billing Records DPUIND Directed Call Pickup Barge-in Indication DPUN DPU Notification DPX Datapath Extension DQ Deluxe Queuing DQA Design Quality Assurance DQC Display Queued Calls DQD Directory Query Display DQDB Distributed Queue Double Bus DQDB Distributed Queue Dual Bus DQDB Distributed Queued Dual Bus DQDB Dual Queue Dual Bus DQE Detective Quantum Efficiency DQI Departmental Quality Index (ETSI) DQPSK Differential QuadraPhase Shift Keying DQPSK Differential Quadrature Phase-Shift Keying D-QPSK Differential Quaternary Phase-Shift Keying DQRUMA Distributed Queuing Request Update Multiple Access DQS Display Queue Status DQS Document Quality System DQT Define Quantization Table DQT Display Queue Threshold DR Data Rate DR Data Ready DR Deactivation Request DR Dead Reckoning position (ship-navigation) DR Debug Register DR Defect Report DR Delivery Report DR Derived Requirements DR Design Requirements DR Design Review DR Designated Receivers DR Diagnostic Request DR Digit Receiver DR Digital Radiology DR Digital Research DR Direct Route DR Direct Routed DR Directed Retry DR Disconnect Request DR Disconnect Request DR Discount Request DR Distinctive Ringing Dr Draht (Wire) DRA Digital Recorded Announcement DRA Distributed Restoration Algorithm DRA Dynamic Resource Allocation DRAM Digital Recorded Announcement Machine DRAM Digital Recorded Announcement Module DRAM Dynamic RAM DRAM Dynamic Random Access Memory DRAMC Dynamic Random-Access Memory Controller DRAW Direct Read After Write DRAW Direct Read After Write (Optical Disk) DRB Destination Route Builder DRC Data Recovery Center DRC Data Recovery Component DRC Design Rule Checking DRCC Dual Remote Cluster Controller DRCC2 Dual Remote Cluster Controller 2 DRCCI ISDN Dual Remote Cluster Controller DRCS Digital Radio Concentrator System DRCS Dynamically Redefinable Character Set DRCW Distinctive Ringing/Call Waiting DRCW Distinctive Ringing/Ringback for Call Waiting DRD Data Rule Distribution DRDA Distributed Relational Database Architecture DRE Directional Reservation Equipment DREO Defence Research Establishment Ottawa DREQ DMA Request DRES Data Route Expert System (Telecom and Bell Canada) DRF Data Recovery Field DRFM Digital Radio Frequency Module (Military Avionics) DRG Degrees, Radians, or Gradians DRG Developer Relations Group DRG Direction de la Réglementation Générale (F) DRI Defence Research Internet DRI Define Restart Interval DRI Digital Research Inc. DRI Dual Ring Interworking DRING Distinctive Ring DRIVE Dedicated Road Infrastructure for Vehicle safety in Europe DRJ Disengage Reject DRL Data Retrieval Language DRL Denied Roamer Log DRM Data Request Message DRM Distributed Recording Manager DRM Domain Resource Manager DRMS Dynamic Resource Management System DRO Destructive Read Operation DRO Destrutive Read-Out DRO Dielectric-Resonator Oscillator DROES Data Receive Only Earth Stations (satellite) DROP Drop DRP Directional Radiated Power DRP Distribution and Replication Protocol DRQ Data Request DRQ Disengage Request DRQ DMA Request DRRS Digital Radio Relay System DRS Data and Report System DRS Data and Reports System DRS Data Rate Selector DRS Data Relay Satellite DRS Data Retreival System DRS Delayed Release message DRS Delayed Release Signal DRS Digital Radio System DRS Digital Reference Sequence DRS Digital Reference Signal DRS Druckstation (Printer Station) DRS Dynamic Resource Scheduling DRSC Dedicated Short Range Communications DRSC Dual Remote Switching Center DRSCI ISDN Dual Remote Switching Center DRT Data Recording Terminal DRT Destination Route DRT Diagnostic Rhyme Test DRT Digit Reception Test DRTM Design Ready To Manufacture DRTS Distributed Real-Time System DRTU Digital Remote Test Unit DRU Deliverable Release Unit DRU Delivery Release Unit DRU Design Releasable Unit DRU Design Release Unit DRU Development Release Unit DRU DualMode Radio Unit DRU Dual-mode Radio Unit DRUID Demonstrational Rapid User Interface Development DRUM Design Requirements Utility- Multisite DRUM DualMode Radio Unit Monitor DRV Device Driver File DRW Micrographx Designer/Draw File DRX Discontinuous (radio) Reception (mechanism) DRX Discontinuous Reception DRxI Definite Response x indicator (SNA) DS Dansk Standardiseringsraad DS Danske Standardiseringsrad (DK) DS Data Schema DS Data Segment DS Data Set DS Data Signaling DS Data Store DS Data Stream(ing) DS Data Strobe DS DDOC Section: Data Schema DS DDOC Started DS Decode and Select DS Default Service DS Define Storage DS Delivery System DS Denotational Semantics DS Design Specification DS Design Started DS Diagnostic Server DS Dialup Switch DS Digit Select DS Digit String DS Digital Section DS Digital Services DS Digital Signal DS Digital Signaling DS Digital Switch DS Digital System DS Direct Sequence DS Direct Sequence DS Direct Signaling DS Directory Service(s) DS Dispersion Shifted DS DiSplay DS Distinguishing Sequence DS Distributed Single-Layer DS Distribution Session DS Distribution System DS Document Storage DS Double Side DS Double Sided DS Downstream DS Drive Select DS Duplex Signaling DS Primary Rate Access Digital Section DS II Data Syntax according to CCITT Recommendation T.101, Annex C DS III Data Syntax according to CCITT Recommendation T.101, Annex D DS/DD Double-Sided Double-Density DS/HD Double-Sided High-Density DS/SS Direct Sequence Spread Spectrum DS0 Digital Signal Level 0 DS0 Digital Signal, level 0 DS-0 Digital Signal Level 0 DS0A Digital Signal Level 0A DS-0A Digital Signal Level 0A DS0CTA DS0 Channel Termination for Nailed-Up Analog Service DS0CTB DS0 Channel Terminations for B-Channels DS0CTD DS0 Channel Termination for D-Channel DS0CTD2 DS0 Channel Termination for D-Channel Backup (D2) DS0DP DS0 Dataport DS0-DP DS0-Dataport DS1 Digital Signal Level 1 DS-1 Digital Signal Level 1 DS1 OE DS1 Office Equipment Number DS1BIF DS1 Bus Interface DS1C Digital Signal Level 1 Concatenated DS-1C Digital Signal Level 1 Concatenated DS1GSP DS1 Group Search Priority DS1PORTS DS1 Ports DS2 Digital Signal Level 2 DS-2 Digital Signal Level 2 DS3 Digital Signal Level 3 DS-3 Digital Signal Level 3 DS-3C Digital Signal Level 3 Concatenated DS9 Default Service in NA009 DSA Data Set Adapter DSA Dead System Alarm DSA Dell SCSI Array DSA Destination Subarea DSA Dial Service Administration DSA Dial Service Analysis DSA Dial Service Assistance DSA Dial Service Auxiliary DSA Digital Serving Area DSA Digital Signature Algorithm DSA Digital Storage Architecture DSA Digital Subtraction Angiography (Med.) DSA Directory Server Agent DSA Directory Service Agent DSA Directory System Agent DSA Distributed System Architecture (Bull) DSA Distributed Systems Architecture DSA Dynamic Slot Assignment DSAA DECT Standard Authentication Algorithm DSAC Dial Service Administration Center DSAC Distributed Systems Administrations and Control (Bull) DSAC DMS Support and Change DSAF Destination Subarea Field DSAP Data Supervisor Area Pointer DSAP Destination Service(s) Access Point DSAPI Destination Service Access Point Identifier DSAR Data System Address Register DSAU DS1 Signal Access Unit DSB Digital Sound Broadcasting DSB Double Sideband DSB TC Database for Testcases DSBAM Double Sideband Amplitude Modulation DSBEC Double Sideband, Emitted Carrier DSBLD Disabled DSBRC Double Sideband, Reduced Carrier DSBS Digital Sound Broadcasting System DSBSC Double Sideband, Suppressed Carrier DSB-SC Double SideBand Suppressed Carrier DSBTC Double Sideband, Transmitted Carrier DSC Data Storage Controller dsc Declaration Subset Close DSC DECT Standard Cipher DSC Digital Selective Calling DSC Digital Spectrum Compatible DSC Digital Subscriber Carrier (system) (ISDN) DSC Digital Subscriber Controller (ISDN) DSC Digital Switch Corporation DSC Direct Satellite Communications DSC District Switching Centre DSC Document Structuring Conventions DSC Dynamic Switch Compiler DSC The Discovery Channel DS-CDMA Direct Sequence CDMA DSCH Dual Service Channel DSCWID Deluxe Spontaneous Call Waiting Identification DSCWID Spontaneous Call Waiting Identification with Disposition DSD Data Structure Definition (CCA/VTS) DSD Development Strategy Document DSD Digital Switch Division DSD Direct Service(s) Dialing DSDB Debit Service Database DSDC Direct Service Dialing Capability DSDC Direct Service(s) Dialing Capabilities DSDD Double-Sided Double-Density (Disk) DSDN Designated Secondary Directory Number DSDS Dataphone Switched Digital Service DSDT Dynamic Structured Data Transfer DSE Data Switching Equipment DSE Data Switching Exchange DSE Dialogue Service Element DSE Digital Switching Element DSE Distributed Single-Layer Embedded DSE Distributed Switching Evolution DSE Distributed System Environment (Honeywell) DSE Document Search Engine DSE DSA-Specific Entry DSEA Display Station Emulation Adapter DSEE Domain Software Engineering Environment DSEQ Descending Sequence DSET Display Set DSF Dispersion-Shifted Fiber DSFT Designing Systems For Testability DSG Distributed Systems Generator DSGW Double Sided Glue and Wave DSH Dual Seizure Handling DSHD Double Sided High Density DSI Data Set Identifier DSI Data Set Interface DSI Data Storage Interrupt DSI Data Stream Interface DSI Detailed Spectrum Investigation DSI Digital Signal Interface DSI Digital Speech Interpolation DSI Disable Interrupts DSI Dynamic Skeleton Interface DSIC Digital Subscriber Interface Circuit DSIP Digital Set Interface Processor DSIS Distributed Support Information Standards (group) DSISR DSI Exception Source Register DSL Digital Simulation Language DSL Digital Subscriber Line DSL Digital Subscriber Loop DSL Distributed Service Logic DSL Distribution Service Level (SNA) DSLAM Digital Subscriber Line Access Multiplexer DSLC Data Subscriber Loop Carrier DSLIC Digital Subscriber Line Interface Circuit DSLT Digital Subscriber Line Terminal DSM Digital Storage Media DSM Digital Storage Medium DSM Direct Signal Monitoring DSM Direct Synthesis Module DSM Directory Service Migration DSM Distributed Software Manager DSM Distributed Systems Management (Tandem) DSMA Data Sense Multiple Access DSMA Digital Sense Multiple Access DSMA/CD Digital-Sense Multiple Access with Collision Detection DSM-CC Digital Storage Media Command and Control DSM-CC Digital Stored Media Command and Control DSN Data Set Name DSN Data Source Name DSN Debit Service Number DSN Defense Switched Network DSN Deliver Single Number DSN Digital Switching Network DSN Disk Serial Number DSN Distributed System Network (Hewlett Packard Inc.) DSN Distributed System Network (HP) DSN Dual Shelf Network DSN MDII: No Start Dial- Delay Dial, Steady On-Hook DSNE Double Shelf Network Equipment DSNE Dual Shelf Network Equipment DSNX Distributed Systems Node Executive (APPN-IBM) dso Declaration Subset Open DSO Development Support Overhead DSO Digital Sampling Oscilloscope DSO Digital Storage Oscilloscope DSO Dual In-Line Small Outline DSOC Decode and Select/Operand Fetch Cycle DSOM Distributed System Object Model DSP Data Service Provider DSP Device Stop DSP Digital Signal Processing DSP Digital Signal Processor DSP Direction du Service Public (F) DSP Directory Service Protocol DSP Directory System Protocol (OSI) DSP Display DSP Display Station Protocol DSP Display Translation/Routing Information DSP Domain Specific Part (OSI-NL) DSP Downstream Processor DSP Drive Slave Present DSPAN DataSpan DSPC Display Control DSPDA DSP Design Automation DSPERM Permanent Data Store DSPI DSP Island DSPM Digital Signal Processing Module DSPM Direct Subscription Parameter Management DSPR DSP Resource Module DSPROT Protected Data Store DSPU Downstream Physical Unit DSQD Double Sided Quad Density DSR Data Set Ready (Signal) DSR Data Signalling Rate DSR Data Synchronization Register DSR Dead System Recovery DSR Device Status Report DSR Digital Satellite Radio DSR Digital Subtraction Radiology (Medical) DSR Double Sided Reflow DSRI Digital Standard Relational Interface DSRR Digital Short Range Radio DSRTP Digital Services Remote Test Port DSRV Default Service DSS Data Storage System DSS Datensichtstation (Data Display Terminal) DSS Decision Support Services DSS Decision Support System DSS Dedicated Servo Surface DSS Device Support System DSS Dial Selective Signaling DSS Digital Satellite Service DSS Digital Satellite System DSS Digital Signalling Systems DSS Digital Signature Standard DSS Digital Subscriber Signalling DSS Digital Subscriber Signalling System DSS Digital Switching Subsystem DSS Digital Switching System DSS Direct Station Select DSS Direct Station Selection DSS Directory and Security Server DSS Directory and Security Services DSS Diskless Support Services DSS Distributed Sample Scrambling DSS Domain SAP/RIP Server DSS Dynamic Structure Sizing DSS1 Digital Signalling System number one (ISDN access protocol) DSS1 Digital Subscriber Signaling System No. 1 DSS1+ enhanced DSS1 DSS2 Digital Signalling System number 2 (B-ISDN access protocol) DSS2 Digital Subscriber Signaling System No. 2 DSSA DECT Standard Authentication Algorithm DSSC Double Sideband Suppressed Carrier DSSD Double-Sided Single-Density (Disk) DS-SMF Dispersion Shifted Single-Mode Fiber DSSS Direct Sequence Spread Spectrum DS-SS Direct-Sequence Spread-Spectrum DSSSL Document Style, Semantics, and Specification Language DS-SSMA Direct Sequence-Spread Spectrum Multiple Access DST Daylight Saving Time DST Destination DST DeSTination reference DST Device Start DSt Diensstelle (Service Center) DST Diode-Split Transformer DST Dispersion Supported Transmission DST Distributed Smalltalk DST Double Super Twisted DST Double-Layer Supertwist D-STB Detailed Simulation Testbed DS-TDMA Data Syntax according to CCITT Recommendation T.101, Annex B DSTE Digital Subscriber Terminal Equipment DSTEMP Temporary Data Store DSTN Double Supertwisted Nematic DSTN Dual Supertwist Nematic DSTS Digital Services Test System (CSC-ATT) DSU Data Service Unit DSU Data Service Unit (Bell) DSU Data Switching Unit DSU Digital Service(s) Unit DSU Disk Storage Unit DSU Distribution Service Unit (SNA) DSU DMS Software Update Controller DSV Data Steal into Voice DSVD Digital Simultaneous Voice and Data DSVT Digital Secure Voice Telephone DSX Digital Signal Cross-connect DSX-1 DSX for DS1 Facilities DT DaTa DT Data Terminal DT Data Terminal equipment DT Data Transfer DT Data Transmission DT Data Tuple DT DDOC Section: Design Test Plan DT Defer Threshold DT Definition List Term (HTML tag) DT Delayed Transmission DT DeleTe DT Denied Termination DT Design Test DT Designer Test DT Designer Tested DT Designer Testing Completed DT Deutsche Telekom (German Telecom) DT Dial Tone DT Digital Terminal DT Digitalk DT Digitone DT Digroup Terminal DT Display Text DT Distant Terminal DT Draw Text DT&M Desktop Technology & Management DT1 Data Form 1 DT2 Data Form 2 DTA DaTA DTA Data Transmission Abort DTA Desktop Assistant DTA Detailed Traffic Analysis DTA Digital Terminals and Access DTA Digital Test Access DTA Digitally Terminated Analog DTA Disk Transfer Area DTA Distributable Technical Audit DTA Distribution Terminal Assembly DTAC Digital Test Access Connector DTAC Digital Test Access Controller DTACK Data Transfer ACKnowledge DTAD Digital Telephone Answering Device DTAG Deutsche Telekom AG (German Telekom AG) (former DBPT) DTAI ISDN Digital Trunk Array DTAL Digital Test Access Link DTAM Document Transfer and Manipulation DTAM Document Transfer And Manipulation (CCITT T.431/433) DTAM Document Transfer Application Management DTAM Document Transfer, Access and Manipulation DTAO Desk-Top/Audio-Only DTAP Direct Transfer Application Part DTAU Digital Test Access Unit DTB Data Transfer Bus DTBI Denied Toll Break-In DTBS Distributed Time-Bounded Services DTC Data Test Center DTC Datacommunication and Terminal Controller DTC Desk-Top Communication DTC Desktop Conferencing DTC Digital Traffic Channel DTC Digital Transmit Command DTC Digital Trunk Controller DTC Direct-To-Child DTC7 CCS7 Digital Trunk Controller DTCA Default Throughput Class Assignment DTCI ISDN Digital Trunk Controller DTCO Digital Trunk Controller Offshore DTCOi Digital Trunk Controller Offshore (ISDN) DTCT DMS Translations Capture Tool DTD Dial Tone Delay DTD Document Type Decalaration DTD Document Type Definition DTDMA Distributed Time Division Multiple Access DTDR Dial Tone Delay Recorder DTDR Dial Tone Delay Recording DTDS Disaster Tolerant Disk System DTDS+ Disaster Tolerant Disk System Plus DTE Compatibility with DTE Built to 1980, 1984, or 1988 ITU-T X.25 DTE Data Terminal Equipment DTE Data Terminating Equipment DTE Digital Terminal Equipment DTE Digital Trunk Equipment DTEI Dynamic TEI DTEI ISDN Digital Trunk Equipment DTF Data Transfer Facility (DECnet-SNA) DTF Data Transmission Failure DTF Dial Tone First DTF Digital Transmission Facility DTFI Digital Transmission Facility Interface DTH Data Test Head DTH Digital Test Head DTH Direct To Home DTH Direct-To-Home DTI Data Transfer Interface DTI Data Trunk Interface DTI Defect Type Indication DTI Department of Trade and Industry (UK) DTI Digital Trunk Interface DTI Distortion Transmission Impairment DT-I ISDN Denied Termination DTIE Display Text Information Element DTIM Delivery TIM dtksh Desktop Korn Shell DTL Designated Transit List DTL Digital Tanlock DTL Digital Trunk Link DTL Diode-Transistor Logic DTLB Data Translation Lookaside Buffer DTLS Digital Television Lightwave System DTM Denied Termination DtM Design to Manufacture DTM Design To Market DTM Digital Terrain Model DTM Digital Test Module DTM Digital Trunk Module DTM Distributed Transaction Monitor DTM DRAM Trunk Module DTM Dynamic Traffic Management DTMEPI Denied Termination Except Priority Incoming DTMF Digitone Multifrequency DTMF Dual-Tone Multifrequency DTMFR DTMF Receiver DTN Deflected-to Number DTN Deliver Two Numbers DTN Digitone Dial DTN Diverted-to Number DTO Decentralized Toll Office DTO Desktop Object D-TO-A Digital to Analogue dtor Destructor DTP Data Tape Punch DTP Data Transfer Process DTP Data Transport Protocol DTP Designer Test Process DTP Designer Testplan DTP Desktop Publishing DTP Distributed Transaction Processing (OSI) DTPM Data Transport Protocol Machine DTR Data Terminal Ready (modem signal) DTR Data Transfer Requested DTR Data Transmission DTR Digital Tone Receiver DTR Digitone Receiver DTR Distributor Session DTR Distributor Transactor DTR Down-Time Ratio DTR Draft ETSI Technical Report DTR Draft Technical Report (IEC, ETSI) DTRC Data Transmitter Receiver Chip DTRC DS-512 Transmit/Receive Controller DTRE DTMF Recognition DTS Data Tandem Switch DTS Data Transport System DTS Decoding Time Stamp DTS Dial Tone Speed DTS Digital Tandem Switch DTS Digital Terminal Simulator DTS Digital Termination System DTS Digital Test Sequence DTS Digital Theater Surround DTS Digital Transmission System DTS Distributed Time Service DTS Document Translation System DTSP Default Terminal Service Profile DTSP Duplicate Translation Signalling Point DTSR Dial Tone Speed Recording DTTB Digital Television Terrestrial Broadcasting DTU Data Terminal Unit DTU Data Terminating Unit DTU Data Transfer Unit DTU Digital Test Unit DTV Desktop Video DTV Digital Television DTW Dynamic Time Warping dtwm Desktop Window Manager DTWX Dial TeletypeWriter eXchange DTWX Dial Teletypewriter Exchange Service DTX Data Transmission DTX Discontinuous Transmission (mechanism) DU Data Unit DU Dimensioning Unit DUA Device Under Analysis DUA Directory User Agent DUAE Directory User Agent Entity DUAL Distributed Update Algorithm DUAP Data User Area Pointer DUAQ Dial-Up Autoquote DUART Dual Universal Asynchronous Receiver/Transmitter DUC Data Unit Control DUC Dual-Access Utility Circuit DUD Dollar Underscore Dollar DUE Detection of Unauthorized Equipment DUF Dispersion-Unshifted Single-Mode Fiber DUITS Digital, Ubiquitous, Interoperable, Transparent, and Secure DUKPT Derived User Key Per Transaction DUN Dial-Up Networking DUP Data User Part DUP Default User Profile DUP Destination User Prompter DUP Duplicate DUS Data User Stations DUSCC Dual Universal Serial Communications Controller DUT Device Under Test DUTL DMS Universal Transport Layer DUUS Delivery of User-to-User Signaling DUV Data Under Voice DUV Deep Ultraviolet DUX Digital Unix DV DataVision DV Distance Vector DVA Digital Video Architecture DVAP Design Verification and Acceptance Plan DVB Digital Video Broadcasting DVB Direct Video Broadcast DVB DOS Volume Boot Sector DVB-C Digital Video Broadcasting-Cable DVB-S Digital Video Broadcasting-Satellite DVBST Direct View Bistable Storage Tube DVB-T Digital Video Broadcasting-Terrestrial DVC Desktop Videoconferencing DVC Digital Video Compression DVC Digital Videocassette DVCC Digital Verification Color Code DVD Digital Versatile Disk DVD Digital Video Disk DVDR Digital Video Disk Recorder DVD-R Digital Video Disk-Recordable DVE Digital Video Effects D-VHS Data VHS D-VHS Digital Data VHS DVHT Digital Video Home Terminal DVI Data and Voice Interface DVI Data-Voice Interleaved DVI Diagonal Viewable Image DVI Diagonal Viewing Image DVI Digital Video Interactive DVI Digital Video Interactive system DVI Digital Video Interface DVI Digital Voice Interpolation DVLN Digital Video Learning Network DVM Data Voice Multiplexor DVM Digital Volt-Meter DVM Document View/Markup DVMA Direct Virtual Memory Access DVMRP Distance Vector Multicast Routing Protocol DVM-RP Distance Vector Multicast Routing Protocol DVOM Digital Volt-Ohm Meter DVS Data Voice System DVS Datenvermittlungssystem DVSR Digital Video Silicon Recorder (Mass-Memory) DVST Direct-View Storage Tube DVST Direct-View Storage Tube DVS-TP Data Voice System- Transaction Processor DVT Designer Verification and Testing DVT Digital Video Terminal DVTR Digital Video Tape Recorder DVTS Digital Video Test Set DVX Digital Voice Exchange DW Data Word DW Deep Water DW Device Wait DW Double Word dw DWORD (unsigned long) DWARF Debug With Arbitrary Record Format DWB Designer's Workbench DWBS DEFINITY Wireless Business System DWDM Dense Wavelength Division Multiplex DWDM Dense Wavelength Division Multiplexer DWDM Dense Wavelength Division Multiplexing D-WDM Dense-Wavelength Division Multiplexer DWF Drawing Web Format DWF Dual-Window Fibre DWIM Do What I Mean DWMT Discrete Wavelet Multitone DWN DoWN DWS Dialable Wideband Service DWV Data With Voice DX Data register DX Destination Switch Complex DX Distance DX Duplex DX DupleX DX Duplex Signaling DXB Drawing Interchange Binary DXC Digital Cross-Connect DXCS Digital Cross Connect System DXE either a Data Terminal Equipment or a Data Circuit terminating Equipment DXF Data Exchange Format DXF Drawing Exchange Format DXF Drawing Interchange Format DXFR Data Transfer DXI Data Exchange Interface DXL DOORS Extension Language DXS Data eXchange System dyn Dynamic Links DYN Dynamic Links Without Packet Link DYNPAL Dynamic Links With Packet Links DYP Directory Yellow Pages DZ ISO country code for People's Democratic Republic of Algeria
e earth wire
E East
E Echo
E Electrical
e emf (when used in conjunction with a signal generator)
E Enable
E Energy
E English
E Erlang
E Error-Detected
E Essential user facility
E Exception
E Exchange
E Expedited (X)
E Exponent
E Extended (link)
E Extension
E Irradiance
E&E Environment, Health, Safety, Security, and Business Ethics
E&M Ear and Mouth
E&M rEceive and transMit leads
E&S Evans and Sutherland
e.r.p. effective radiated power
E/O Electrical-to-Optical
E/O Electro-Optical
E/S Earth Station
E/U-MUX switch between E-type and U-type MUltipleXes
E2E End To End
E3C European Coordination Committee for Certification (ECCC)
E800 Enhanced 800 Service
E911 Enhanced 911 Emergency Service
EA Address Field Extension Bit
EA Early Assignment
EA Effective Address
EA Electroabsorption
EA Emergency Action
EA Emergency Announcement
EA Equal Access
EA Erase in Area
EA Evaluation Authority
EA Expedited Acknowledgement
EA Expedited data Acknowledgement
EA Expedited Data Acknowledgement Message
EA Extended Address
EA Extended Address field bit
EA Extended Attribute(s)
EA External Alarms
EA1 Emergency Announcement #1
EA2 Emergency Announcement #2
EAB Enterprise Application Builder
EAB ESPRIT Advisory Board
EABS Exchange Alternate Billing Service
EABS Exchange Alternate Billing System
EAC Effective-Address Calculation
EAC Engineering Accreditation Commission
EAC Engineering Action Center
EACC East Asian Character Code
EACEM European Association of Consumer Electronics Manufacturers
EACK Extended Acknowledgement
EACSO East Africa Common Services Organization
EAD Engineering and Administration
EAD Expert Agent Distribution
EADA Engineering and Administrative Data Acquisition
EADAS Engineering and Administrative Data Acquisition System
EADAS/NM Engineering and Administrative Data Acquisition System/Network Management
E-ADPCM Embedded Adaptive Differential Pulse Code Modulation
EAE Equipment Application Engineer
EAE3 Efficient Algorithms Executing Every Aspect of Engineering for
Equipment Application Engineers
EAEO Equal Access End Office
EAEO Exchange Access End Office
EAF Effective-Address Fetching
EAFGD Equal Access Feature Group D
EAI Emergency Action Interface
EAI Emergency Administrative Interface
EAIEC Equal Access Interexchange Carrier
EAILU Enhanced Asynchronous Interface Line Unit
EAM Electrical Accounting Machine
EAM Electronic Accounting Machine
EAM Extended Answer Message
EAMA Enhanced Automatic Message Accounting
EAMF Equal Access Multifrequency
EAMPS Expanded AMPS
EAN European Article Number (bar code)
EANT Equal Access Network Trunk
EAO Electronic Access Ordering
EAOA Equal Access/Operator Assist team
EAOS Equal Access and Operator Services
EAOSS Equal Access Operator Services Signaling
EAOSS Equal Access Operator Signaling System
EAOSS Exchange Access Operator Services System
EAP Emergency Action Program
EAP Employee Assistance Program
EAP Equal Access Plan
EAP Extended Access Paging
EAP Extended Access Paging
EAP Extensible Authentication Protocol
EAP External Address Plan
EAPROM Electrically Alterable Programmable Read-Only Memory
EAR Early Access Release
EAR External Access Register
EARB Enhanced Adaptive Rate-Based
EARB Extended Adaptive Rate-Based
EARN European Academic and Research Network
EAROM Electrically Alterable Read-Only Memory
EAs Einzelanschluss (Single Line) (analogue line, single line)
EAS Emergency Alert System
EAS Enhanced Alarm System
EAS Exchange Access Signaling
EAS Exchange Access System
EAS Expert Agent Selection
EAS Extended Area Service
EAS External Architecture Specification
EAsKt Einzelanschlusskonzentrator (Single Terminal Concentrator)
EASP Equal Access Switching Point
EAT EDNA Administration Tool
EAT Emergency Administrative Terminal
EATMS Electro-Acoustic Transmission Measuring System
EATS Equal Access Traffic Separation
EAX Electronic Automatic Exchange
EAX Extended Accumulator Register
eaz Endgeraeteauswahlziffer (Terminal Equipment Selection Digits)
EB Electronic Bonding
EB End of Block
EB Exabyte
EB External Bit
EB&F Equipment Blockages and Failures
EB/TA Electronic Bonding for Trouble Administration
EBAF Enhanced Bellcore AMA Format
EBAF Expanded Bellore AMA Format
EBAF Extended Bellcore AMA Format
E-BAMA Enhanced Beacon Assisted Multiple Access
EBAS Enhanced Billing and Access Services
EBB Elektronische Bild Bearbeitung
EBBL Evolution Brown Bag Lunch
EBC Egress Busy Crankback message
EBC European Business Committee
E-BCCH Extended Broadcast Control Channel
EBCD Enhanced Booked Call Database
EBCDIC Extended Binary-Coded Decimal Interchange Code
EBCR Enhanced Busy Call Return
EBE External Behaviorial Expression
EBER Equivalent Binary Error Rate
EBES Electron Beam Exposure System
EBGP External BGP
EBHC Equated Busy Hour Calls
EBI End Bracket Indicator (SNA)
EBI Even Bit Inversion
EBIC Electron Beam Induced Current
EBIT Electronic Bonding Implementation Team
EBIU End of BIU
EBL Electron Beam Lithography
EBM Editing Boundary Mode
EBM Error Correction and Burst Memory Controller
EBNF Extended Backus-Naur Form
EBO Executive Busy Override
EBOBAS Executive Busy Override Basic
EBOEBX Executive Busy Override Exempt
EBOF Extension Block Object Framework
EBOM Executive Busy Override on MADN
EBONE European IP Backbone
EBOT Executive Busy Override Tone
EBOX Executive Busy Overide Exempt
EBP Extended Base Pointer
EBR Electron-Beam Recording
EBS Electron Bombarded Silicon
EBS Electronic Business Service
EBS Electronic Business Set
EBS Emergency Broadcast System
EBS Engineering and Business Systems Inc.
EBSG Elementary Basic Service Group
EBSS European Binary Signalling System (1200 bit/s)
EBTN European Backbone Telecommunications Network
EBU European Broadcasting Union
EBV Elektronische Bild Verarbeitung
EBW Effective Bandwidth
EBX Executive Busy Override Exempted
EBX Extended Base Register
EC Earth Calling
EC Echo Canceler
EC Echo Cancellation
EC Echo Canceller
EC Echo Check
EC Echo Controller
EC E-Core
EC Edition Code
EC Electrical Communication (periodical)
EC Electronic Commerce
EC Engineering Change
EC Engineering Complaint
EC Environmental Compatibility
EC Equipment Controller
EC Equivalent Capacity
EC Erase Character
EC Error Code
EC Error Correction
EC Escape Character
EC European Commission (new name for CEC)
EC European Community (now EU)
EC Exchange Carrier
EC Exchange Classification
EC Extended Control
EC ISO country code for Republic of Ecuador
Ec/No Ratio of energy per modulating bit to the noise spectral density
ECA Echo Suppression Allowed
ECA Element Control Application
ECA Emergency Changeover Acknowledgement message
ECA Engineering Change Announcement
ECA Exchange Carrier Association
ECAC European Civial Aviation Conference
ECAN Echo Cancellation
ECAN Echo Canceller
ECATI European Conference of Associations of Telecommunications Industries
ECB Electrically Controlled Birefringence
ECB Electronic Code Book
ECB Event Control Block
ECB Extension Control Block
ECBF European Citizen's Band Federation
ECBM Echo Canceller Burst Mode
ECC Echo Canceller Control
ECC Electrical Cross-Connect
ECC Electronic Common Control
ECC Elliptic Curve Cryptosystem
ECC Embedded Communication Channel
ECC Embedded Communications Channel
ECC Embedded Control Channel
ECC Error Checking and Correction
ECC Error Control Code
ECC Error Correcting Code
ECC Error Correcting Code
ECC Error Correction Checking
ECC Error Correction Code
ECC Error-Correction Coding
ECC Expanded Community Calling
ECCB Extended Call Condense Block
ECCC European Coordination Committee for Certification
ECCM Electronic Counter-Counter-Measures (Military)
ECCP Error Correction Coprocessor
ECCS Economic CCS
ECCV Enhanced Charge Card Validation
ECD Echo Suppression Denied
ECD Enhanced Call Disposition
ECD Enhanced Compact Disk
ECD Equipment Configuration Data
ECD Equipment Configuration Database
ECD Eraseable Compact Disk
ECD Error Correction Device
ECDB Electronic Chart DataBase (ECDIS)
ECDIE Electronic Chart DIsplay Equipment
ECDIS Electronic Chart DIsplay System (ship-navigation)
ECDO Electronic Community Dial Office
ECDR Expanded Call Detail Record
ECE Echo Control Equipment
ECE Economic Commission for Europe
ECF Echo Control Factor
ECF Enhanced Call Forward
ECF Enhanced Connectivity Facility (SNA)
ECFRN European Consultative Forum for Research Networking
ECG Electro Cardio-Gram (Medical)
ECH Echo Canceled Hybrid
ECH Echo Canceler with Hybrid
ECH Echo Cancellation
ECH Erase Character
ECHO European Commission Host Organization
ECHS Extended CHS
ECI Echo Control Information
ECI Egress Context Identifier
ECI End Chain Indicator (SNA)
ECI Equipment Catalogue Identifier
ECI Explicit Congestion Indication
ECI Extended Call Interface
ECIC Electronic Communications Implementation Committee
ECIC Electronic Communications Implementors Committee
ECIC Equal-access Carrier Identification Code
ECIF Electronic Communications Implementation Forum
ECIS Embedded Common Channel Interoffice Signaling
ECISS European Committee on Iron and Steel Standardization
ECIT European Committee for Information Technology
ECITC European Committee for Information Technology Testing and Certification
ECJ European Court of Justice
E-CKEY Encrypted E-KEY
ECKO Eddy-Current-Killed Oscillator
ECL Effective Code Length
ECL Emitter-Coupled Logic
ECLT External Code Linking Toolkit
ECM Coordination Management
ECM Electronic Cipher Machine
ECM Electronic Contrast Modulation (Electronic Imaging)
ECM Electronic Counter-Measures (Military)
ECM Emergency Changeover Message
ECM Engineering Change Memorandum
ECM Entitlement Control Message
ECM Error Control Mode
ECM Error Correction Mode (facsimile)
ECM Extended Call Management
ECMA European Computer Manufacturers' Association
ECMA TC 32 Communication, Networks and Systems Interconnection
ECMS Extended Change Management System
ECN Engineering Change Notice
ECN Engineering Change Notification
ECN ERMES Code Number
ECN Explicit Congestion Notification
ECO Electron Coupled Oscillator
ECO Electronic Central Office
ECO Emergency Changeover Order message
ECO Emergency Cutoff
ECO Engineering Change Order
ECO Engineering Control Office
ECOM Electronic Computer Originated Mail
ECOOP European Conference on Object-Oriented Programming
ECORE Enhanced Core
ECOS End-to-End Class of Service
ECOSOC ECOnomic and SOcial Committee
ECP Encryption Control Protocol
ECP Engineering Change Proposal
ECP Enhanced Capabilities Port
ECP European Common Proposal
ECP Executive Cellular Processor
ECP Executive Control Program
ECP Extended Capabilities Port
ECPA Electronic Communications Privacy Act
ECPC Executive Cellular Processor Complex
ECR Electronic Cash Register
ECR Explicit Cell Rate
ECRB Executive Change Review Board
ECREEA European Confederation of Radio and Electronic Equipment Associations
ECRM Echo Cancellation Resource Module
ECRP Earcap Reference Point
ECRTSIM Enhanced CRTSIM
ECS Electronic Commerce Services
ECS Encryption Control Signal
ECS Enterprise Communications Server
ECS Entity Coordinate System
ECS Entrance Criteria Screener
ECS Entropy-Coded Segment
ECS Environmental Control System
ECS European Communications Satellite
ECSA European Computing Services Association
ECSA Exchange Carrier Standards Association
ECSA Exchange Carrier Standards Association (USA)
ECSDS Enterprise Computing Systems Data Systems
ECT Early Cut-Through
ECT Explicit Call Transfer (supplementary service)
ECTEL European Conference of Telecommunications and Professional Electronic Industries (ES)
ECTEL European Telecommunication and Professional Electronics Industry
ECTF Enterprise Computer Telephony Forum
ECTP Ethernet Configuration Test Protocol
ECTRA European Committee for Telecommunications Regulatory Affairs
ECTS Echo Canceller Testing System
ECTS ENET Integrity Check Traffic Simulator
ECTUA European Council of Telecommunications User Associations
ECU EISA Configuration Utility
ECU Electronic Control Unit
ECU Environmental Control Unit
ECU European Currency Unit
ECU European Currency Unit
ECW Emergency Calls in Wireless
ECW Even Control Word
ECX Extended Count Register
ED Edit
ED Editing
ED Electronic Design (periodical)
ED End Delimiter
ED End Designation
ED End of Data
ED Ending Delimiter
ED Energy Dispersal
ED ENVY/Developer
ED Erase in Display
ED Error Detection
ED EWOS Document
ED Expedited Data (EX)
ED Extra-High Density
ED&C Error Detection and Correction
ED/ECC Error Detection and Error Correction Code
EDA Efficient Defect Analyzer
EDA Electronic Design Automation
EDA Electronic Design Automation (CeBIT)
EDAC Error Detection and Correction
EDAP Extended Data Availability and Protection
EDB Embedded Database
EDB ESTELLE Debugger
EDB Exchange Database
EDBA Event-Driven Billing Architecture
EDC Error Detecting Code
EDC Error Detection and Correction
EDC Error Detection Code
EDC Export Development Corporation
EDCH Enhanced D-Channel Handler
EDCP Event Driven Call Processing
EDD Earliest Due Date
EDD Electronic Document Delivery
EDD Electronic Document Distribution (DISOSS)
EDD Element Definition Document
EDD Envelope Delay Distortion
EDD Equipment Data Dump
EDDI Extended Disk Driver Interface
EDDS Enhanced Dynamic Data Sync
EDE Encrypt-Decrypt-Encrypt
EDF Earliest Deadline First
EDF Erbium-Doped Fiber
EDF European Development Fund
EDFA Erbium-Doped Fiber Amplifier
EDFFA Erbium-Doped Fluoride Fiber Amplifier
EDFG Edge Device Functional Group
EDFP Event Driven Feature Processing
EDGE Enhanced Data Rates for GSM Evolution
EDH Electronic Data Handling
EDH Electronic Document Handling
EDI Electroni Document Interchange
EDI Electronic Data Interchange
EDI Enciphered Data Indicator (SNA)
EDI Extended Destination Index Register
EDIF Electronic Design Interchange Format
EDIF Electronic Design Interchange Format (CAD/CAE)
EDIFACT Electronic Data Interchange For Administration, Commerce and Transport
EDIFICE EDI Forum for the Electronics Industry
EDIM Electronic Data Interchange Message
EDIMS Electronic Data Interchange Messaging System
EDIN Electronic Data Interchange Notification
EDIP Electronic Document Image Processing
EDIT Error Deletion by Iterative Transmission
EDL Edit Decision List
EDL Encapsulator Description Language
EDM Embedded Delta Modulation
EDM Employee Development Model
EDM Enterprise Desktop Manager
EDMX Enhanced Data Message Switch
EDN EDN Magazine (periodical)
EDNA EKTS Display With No Alerting
EDNA Environment Distribution Network Administration
EDNR Emergency Directory Number Route
EDNR Emergency Directory Number Routing
EDNR Emergency Dynamic Number Routing
EDNS Enterprise-Defined Network Services
EDO Extended Data Out
EDOA Ermium-Doped Optical Amplifier
EDORAM Extended Data Out RAM
EDOSRAM Extended Data Out SRAM
EDOVRAM Extended Data Out VRAM
EDP Electronic Data Processing
EDP Encrypted Data Processor
EDP Enhanced Datagram Protocol
EDP Event Detection Point
EDP Extended Datagram Protocol
EDPE Electronic Data Processing Equipment
EDPM Electronic Data Processing Machine
EDP-N Event Detection Point- Notification
EDP-R Event Detection Point- Request
EDR Early Developer Release
EDR Engineering Data Reporter
EDRAM Enhanced Digital Recorded Announcement Machine
E-DRAM Enhanced DRAM
EDS Electronic Data Switching system
EDS Electronic Data Systems
EDS Electronic Directory Service
EDS Equipment Drawing System
EDS Exchangeable Disk Storage
EDSEA Enhanced Display Station Emulation Adapter
EDSFA Erbium-Doped Silica Fiber Amplifier
EDSL Extended Digital Subscriber Line
E-DSPM Enhanced Digital Signal Processing Module
E-DSS1 European Digital Subscriber Signaling System No. 1
EDSX Electronic Digital Signal Cross-Connect
EDT Eastern Daylight Time
EDT Electronic Design Transfer
EDT Enhanced Data Transfer
EDTC Enhanced Digital Trunk Controller
EDTCC Electronic Data Traffic Control Computer
EDTK Event Driven Trunk Call Processing
EDTM Electrical Time-Division Multiplexing
EDTU Enhanced Digital Test Unit
EDTV Enhanced-Definition Television
edu Educational institutions domain
EDW Energy Dispersion Waveform
EDX Enhanced Digital Switch
EDX Extended Data Register
EE Electrical Engineering
Ee Entity End
EE Equipment Engineering
EE Extended Edition
EE ISO country code for Estonia
E-E End-to-End
EE&Q Environment, Ethics & Quality
EEA Electronic Engineering Association (UK)
EEA European Economic Area (EFTA)
EEA The Association of the Electronics, Telecommunications
and Business Equipment Industries (UK)
EEC Electrical Echo Canceler
EEC Escrow Encryption Chip
EEC European Economic Community
EEC European Economic Community (no longer used, replace by EU)
EECA European Electronic Component Manufacturers' Association
EEE Electronic Equipment Enclosure
EEE End-to-End Encryption
EEG Electro-EncephaloGram (Medical)
EEHO Either End Hop Off
EEI External Event Information
EEIG European Economic Interest Group
EEL Edge-Emitting Laser
EEL Electric Echo Loss
EEL Electric Echo Loss
EEM End to End Message
EEM Enhanced Expanded Measurements
EEMA European Electronic Mail Association
EEMS Enhanced Expanded Memory Specification
EEP Electrical Echo Path
EEPOT Electrically Erasable programmable POTentiometer
EEPROM Electrically Erasable Programmable Read-Only Memory
EEPROM Electrically Erasable PROM
EER Event Error Rate
EER Extended Entity Relationship
EEROM Electrically Erasable Read-Only Memory
EES End-to-End Signaling
EES Escrowed Encryption Standard
EES European Economic Space
EESS Earth Exploration Satellite Service
EESSC End-to-End Signaling via Speed Calling
EET Equipment Engaged Tone
EETD End-to-End Transit Delay
EETDN End-to-End Transit Delay Negotiation
EEVP End-to-End Virtual Path
EEVPN End-to-End Virtual Private Network
EEWD Enhanced Exchange Wide Dial
EF Elementary Function
EF Enhanced Functions
EF Enhancement Factor
EF Envelope Function
EF Erase in Field
EF&I Engineer, Furnish, and Install
EFB Error Free Block
EFCI Explicit Forward Congestion Indication
EFCI Explicit Forward Congestion Indicator
EFCN Explicit Forward Congestion Notification
EFCS Electronic Flight Control System
EFD Endpoint Format Descriptor
EFD Event Forwarding Discriminator
EFD Event-Forwarding Discriminator
EFDS Error Free DeciSeconds
EFF Electronic Frontier Foundation
EFF ElectronikFabrikant Foreningen (Association of Electronics Manufacturers (Denmark)
EFF Extended Frame Format
EFI Electronics for Imaging
EFI Engineer, Furnish and Install
EFI Errored Frame Indicator
EFI Expedited Flow Indicator
EFIE Extended Facility Information Element
EFIS Electronic Flight Instrument System
EFL Emitter Follower Logic
EFM Eight-to-Fourteen Modulation (Coder/Decoder)
EFPT European Feature Patch Team
EFQM European Forum for Quality Management
EFQM European Foundation for Quality Management
EFR Enhanced Full Rate
EFRAP Enhanced Frame Relay Access Processor
EFRC Enhanced Full Rate Codec
EFS Encrypting File System
EFS End of Frame Sequence
EFS Error Free Signal
EFS Error-Free Seconds
EFS External File Service
EFSM Extended Finite State Machine
eFSM Extended Finite State Machine
EFT Electrical Fast Transient
EFT Electronic Funds Transfer (Banking)
EFT Extended Fundamental Types
EFTA Europäische Freihandelsassoziation
EFTA European Free Trade Association
EFTPOS Electronic Funds Transfer at Point of Sale
EFTS Electronic Funds Transfer System
EFTT Enable Full Time Transmission
EG Equipment Ground
EG Europäische Gemeinschaft(en)
EG Expert Group
EG External Gateway
EG ISO country code for Arab Republic of Egypt
EG5 PAC Expert Group 5 (Mobile and Personal Communications)
EGA Enhanced Graphics Adapter
EGAD Education General Administration Database
EGC Enhanced Group Call
EGC Equal Gain Combining
EGCT Expert Group in Conformance Testing
EGP Exterior Gateway Protocol (TCP/IP-DoD)
EGP External Gateway Protocol
E-GSM Extended GSM
EH Event Handler
EH Exception Handling
EH External Host
EH ISO country code for Western Sahara
EHB Extra Half Bright
EHC Error Handling Category
EHD Expected High Day
EHDV Ergonomie et Harmonisation des Dialogues Vocaux
EHF Extremly High Frequency (30...300 GigaHertz)
EHKP4 Einheitliche Hohere Kommunikations Protokolle Ebene 4
(Unified Higher-Level Control Protocol for Level 4)
EHKP5 Einheitliche Hohere Kommunikations Protokolle Ebene 5
(Unified Higher-Level Control Protocol for Level 5)
EHLD EKTS Hold
EHLLAPI Emulator High-Level Language API
EHPT Ericsson Hewlett-Packard Telecommunications
EHS Environmental, Health, and Safety
EHS Exception Handling System
EHT Exception Handling Team
EHT Extremely High Temperature
EHT Extremly High Tension (10 kiloVolt...)
EHZ Einhangezeichen (On-Hook Signal)
EHZA Einhangezeichen des A-Tln
EI DDOC Section: Engineering Information
EI Emergency Indication
EI Enable Interrupt
EI Error Indication
EI Event Information
EI Expected Integrity
EI External Interface
EI External Interrupt
EIA Electronic Industries Association (USA)
EIB Ethernet Interface Board
EIC Equipment Installers Code
EIC Ethernet Interface Card
EICTS ENET Integrity Check Traffic Simulator
EID Endpoint Identifier
EIDE Enhanced Integrated Drive Electronics
E-IDE Enhanced IDE
EIES Electronic Information Exchange System (CCA/VTS)
EIGRP Enhanced Interior Gateway Routing Protocol
EIH Error Interrupt Handler
EII Early Industry Interaction
EII Electronic Image Industry
EII European Information Infrastructure
EIM Errored Interval Monitor
EIM Ethernet Inverse Multiplexer
EIM External Interface Module
EIN Ethernet Interface Node
EIN European Informatics Network
EIN European Information Network
EIOC Enhanced Input/Output Controller
EIOP Enhanced International Operator Position
EIP Electronic Image Processing
EIP Equipment Installation Procedure
EIP Ethernet Interface Paddle Board
EIP Extended Instruction Pointer
EIP Extended Internet Protocol
EIR Engineering Information Report
EIR Equipment Identification Register
EIR Equipment Identification Register
EIR Equipment Identity Register
EIR Excess Information Rate
EIR Excessive Information Rate
EIRMA European Industrial Research Management Association
EIRP Effective Isotropic Radiated Power
EIRP Equivalent Isotropic Radiated Power
EIRP Equivalent Isotropically Radiated Power
EIS Electronic Information Systems
EIS Emulator Interface Specification
EIS Executive Information System
EIS Expanded Inband Signaling
EISA Extended Industry Standard Architecture
EISCAT European Incoherent SCATter facility
EISP Enhanced ISDN Signaling Preprocessor
EISSC Executive Information Systems Steering Council
EIT Encoded Information Type
EIU Ethernet Interface Unit
EIUF European ISDN Users Forum
EIV Encryption Initialization Vector
EJ Electronic Journalism
EJB Enterprise JavaBeans
EJOB European Joint Optical Bistability Project
EKBCEB EKTS Bridged Call Exclusion Billing Records
EKDNBB EKTS Directory Number Bridging Billing Records
EKE End System Key Exchange
E-KEY Expected KEY
EKICB EKTS Intercom Calling Billing Records
EKSRTB EKTS Station Ringing Transfer Billing Records
EKTS Electronic Key Telephone Service
EKTS Electronic Key Telephone Set
EKTS Electronic Key Telephone System
EKTSAM EKTS Analog Member
EKUBB EKTS User Bridging Billing Records
EL Echo Loss
EL Electro Luminescence
EL Electroluminescent
EL Electronic Library
EL Element Layer
EL ELevation
EL Encode Level
EL Engineering Letter
EL Erase in Line
EL Erase Line
EL Exchange Line
ELA ELektroAkustik
ELAN Emulated Local Area Network
ELAN European Local Area Network
E-LAN Extended Local Area Network
ELC Exchange Line Capacity
ELCB Earth Leakage Circuit Breaker
ELCM Enhanced Line Concentrating Module
ELCOM Electrical Communication (periodical)
ELD Enhanced Line Drawer
ELEPL Equal Level Echo Path Loss
ELF Entry Leadership Forum
ELF Error Logging Facility
ELF Executable and Linking Format
ELF Extensible Linking Format
ELF Extension Language Facility
ELF Extremely Low Frequency
ELF Extremely Low Frequency (3- 10 kHz)
ELLC Enhanced Logical Link Control
ELMS Element Layer Management System
ELN Essential Line
ELOBA Events, Logs, OMs, Billing, Alarms
ELOT Hellenic Organization for Standardization
ELOT Hellenic Organization for Standardization (GR)
ELP Encode Level Point
ELPP Enhanced Link Peripheral Processor
ELR Earth Loop Recall
ELS Entry Level Solution
ELSEC Electronic Security
ELSI Extra Large Scale Integration
ELT Emergency Locating Transmitter
ELT Emergency-Load-Transfer signal
ELT Extension Load Tape
ELV Edit Level Video
ELV Electrical Low-Voltage
ELW Editable List Widget
EM E&M
EM Edit Message
EM Electromechanical
EM Electromigration
EM Electronic Mailing
EM Element Management
EM Element Manager
EM Emphasis (HTML tag)
EM Emulate Coprocessor
EM Emulation
EM End of Medium
EM Engineering Manual
EM Enterprise Module
EM Environment Monitor
EM Error Monitoring
EMA Electronic Mail Association (USA)
EMA Electronic Messaging Association
EMA Enterprise Management Architecture (DEC)
EMA Excellence! Maturity Assessment
EMACS Editing Macros
Emacs Extensible Macro-Customizable Self-Documenting Editor
EMAG ETSI MIS Advisory Group
email Electronic Mail
EMAIL Electronic MAIL
EMAU Ethernet Media Access Unit
EMB Extended Memory Block
EMBARC Electronic Mail Broadcast to a Roaming Computer
EMBC European Molecular Biology Conference
EMC Electromagnetic Compatibility
EMC Embedded Maintenance Channel
EMC Enhanced Multipurpose Cabinet
EMC Equipment Manufacture Code
EMD Edelmetall Motor Drenwahler (Analog Mechanical Switch)
EME Earth-Moon-Earth radio path
EMERALD Enhanced Measurement for Early Risk Assessment of Latent Defects
EMF ElectroMagnetic Field
EMF Electromotive Force
EMF Enhanced Metafile
EMF Enhanced Metafile Format
EMF Environment Manager Function
EMF Event Management Framework
EMG Environment Manager Global
EMI Electromagnetic Interference
EMI Enable Manual Input
EMI Exchange Message Interface
EMI External Memory Interface
EMIC ESTU Module Interface Card
EMIRTEL Emirates Telecommunications Corporation
EMK Emergency Key
EML Element Management Layer
EML Expected Measured Loss
eMLPP Enhanced Multi-Level Precedence and Preemption
EMM Entitlement Management Message
EMM ESTU Master Module
EMM Event Measurement Mapping
EMM Expanded Memory Manager
EMMI Electrical Man Machine Interface
EMMS Electronic Mail and Messaging Systems
EMN Enterprise Meeting Notice
EMP Electromagnetic Pulse
EMPC Enhanced Multiprotocol Controller
EMPC Enhanced Multi-Purpose Controller
EMR ElectroMagnetic Radiation
EMR ElectroMechanical Relay
EMR Exchange Message Record
EMRLD Emergency Recovery Log Database
EMRP Effective Monopole-Radiated Power
EMS Electronic Mail System
EMS Electronic Messaging Service (e-mail)
EMS Element Management System (ATT)
EMS Engineering Modelling System (CAD/CAE)
EMS Enhanced Maintenance Server
EMS Enterprise Management Systems
EMS Enterprise Messaging Server
EMS Equivalent Series Resistance
EMS Event Management Service (DSM-Tandem)
EMS Expanded Memory Specification
EMS Expanded Memory System
EMS Express Mail Service
EMS Extended Memory Standard
EMSOG EUTELSAT Multiservice Systems Operations Guide
EMSS Electronic Message Service System
EMT Emulator Trap
EMT Environment Manager Type
EMU Economic Monetary Union
EMU Element Management Unit
EMUG European MAP User Group
EMUG European MAP Users' Group
EMV Europay, MasterCard, Visa
EMW Executive Message Waiting
EMWAC European Microsoft Windows NT Academic Centre
EN Edit Notification
EN Enable
EN Entry
EN European Norm
EN European Standard (CEN/CENELEC)
EN Exchange Node
ENAC Engineering Network Administration Center
ENAC European Network and Application Center
ENADS Enhanced Network Administration System
ENB Effective Noise Bandwidth
ENC Electronic Navigational Chart
ENC ENET Cabinet
ENCP Enhanced Network Central Processor
ENDB ENET Database Audit
ENDEC Encoder/Decoder
Endwrd indicates last code word of a packet
ENE Enterprise Network Event (MAP/TOP)
ENET Enhanced Network
ENF Exchange and Network Features (CEPT)
ENFIA Exchange Network Facilities for Interstate Access
ENG Electronic News Gathering
ENG Electronic News Gathering
ENG Engaged
ENHCWT Enhanced Call Waiting
ENI Enable Interrupts
ENIAC Electronic Numerical Integrator Analyzer and Computer
ENIAC Electronical Numerical Integrator & Calculator (Mauchly 1946)
ENIP Exception-Time Next Instruction Pointer
ENL Number of LSBs to be compared when operating outside home network
ENMC Enterprise Networks Management Center
ENO Enable Output
ENOB Effective Number Of Bits
ENQ Enquiry
ENR Emergency Number Routing
ENR Enterprise Network Roundtable
ENS Enterprise Naming Service
ENS Enterprise Network Services
ENS Enterprise Network Switch
ENS European Nervous System
ENS Event Notification Server
ENSO ETSI National Standardization Organization
ENSS European Navigation Satellite System
ENSS Exterior Nodal Switching Subsystem
ENT Enter
ENT Entry
ENUM Enumeration
ENV Environment
ENV European Pre-Norm
ENV European Pre-Standard (CEN/CENELEC)
EO Elementary Objectives
EO End Office
EOA End of Address
EOB End of Block
EoB End of Bus
EOB End of Business
EOBS Engineering and Operations in the Bell System, First Edition, 1997
EOBS2 Engineering and Operations in the Bell System, Second Edition, 1983
EOC Edge Of Coverage
EOC Embedded Operations Channel
eoc Embedded Operations Channel
EOC End Of Card
EOC End of Contents
EOC End Of Conversion
EOC Physical EOC Channel
EOD End of Data
EOD End of Dialing
EOD End Office Display
EOF End of Data Set Trailer Label
EOF End of File
EOF End Of Form
EOF End of Frame
EOF Enterprise Objects Framework
EOF1 End-of-Data Set Label 1
EOF2 End-of-Data Set Label 2
EOFB End of Facsimile Block
EOH End Of Heading
EOI End Of Identity (IEEE-488 Bus Signal)
EOI End of Image
EOI End of Information
EOJ End of Job
EOL End Of Letter
EOL End of Life
EOL End of Line
EOL End of Option List
EOLR Electrical Objective Loudness Rating
EOM Electro-Optical Module
EOM End of Message
EON End Of Number
EOP Early Outpulsing
EoP End of Optional Parameters
EOP End of Outpulsing message
EOP End Of Procedure
EOP End of Process
EOP End of Program
EOP End of Pulsing
EOPS Enhanced Operator Position System
EOPS Extended Operator Position Service
EOQ European Organization for Quality
EOQC European Organization for Quality Control
EOR End of Record
EOR End of Recording
EOR End Of Reel
EOR End Of Retransmission
EOR End Of Run
EOS Electrical Over-Stress
EOS End Of Scan
EOS End of Selection message
EOS End of Statement
EOS Enhanced Operator Services
EOS Extended Operating System
EOSR Expanded Operator Services Record
EOT End of Tape
EOT End of Tone
EOT End Of Trace (Digital Storage Scope)
EOT End of Transmission
EOT End Office Tandem
EOTC European Organization for Testing and Certification
EOTC European Organization for Testing and Certification
EOUG European Oracle User Group
EOV End of Volume
EOW Engineering Order Wire
EOW Engineering Orderwire
EOW Enhanced Outward WATS
EP Emulation Program
EP End Point
EP Equipment Practice
EP Equipment Practice (CEPT)
EP ESA Processor
EP Estimated Position (ship-navigation)
EP ETSI Project
EP Europäisches Parlament
EP European Parliament
EP Extended Play (discs)
EP External Priority
EPA End of Protected Area
EPA Enhanced Performance Architecture (MAP)
EPA Environmental Protection Agency
EPA Equilibrium Point Analysis
EPAC Extended Privilege Attribute Certificate
EPB Energy-Pulse Bonding
EPBX Electronic Private Branch Exchange
EPC Earth Potential Compensation
EPC Electronic Power Conditioner
EPC Ethernet Paddle Card
EPCI Enhanced Programmable Communications Interface
EPD Early Packet Discard
EPDB Exchange Production Database
EPDF Embedded PDF
EPFS Electronic Position Fixing System (ship-navigation)
EPG Electronic Program Guide
EPHOS European Procurement Handbook for Open Systems
EPI Error Power Indicator
EPI External Presentation Interface
EPIC Electronic Privacy Information Center
EPIC Emulating and Programmable Intergrated Circuits (RCA Inc.)
EPIC Explicitly Parallel Instruction Computing
EPIC Extended PCM Interface Controller
EPIRB Emergency Position-Indicating Radio Beacon
EPL Echo Path Loss
EPL Effective Privilege Level
EPL Electronic Price Label
EPLD Electrically Programmable Logic Device
EPLD Erasable Programmable Logic Device
EPN End Point Number
EPNR Expanded Private Network Record
EPO Electronic Payment Order
EPO Error Performance Objective
EPOC Embedded Protected Operations Channel
EPODD Electronic Publishing: Origination, Dissemination and Design
EPOS Electronic Point Of Sale
EPOSR Expanded Private Operator Services Record
EPOTS Enhanced POTS
EPP Enhanced Parallel Port
EPP ETSI Partnership Project
EPPA European Public Paging Association
EPPV Enhanced Pay-Per-View
EPR Ethylene Propylene Rubber (Cable Insulation)
EPRCA Enhanced Proportional Rate Control Algorithm
EPROM Erasable Programmable Read-Only Memory
EPS Electronic Publishing Services Ltd.
EPS Encapsulated PostScript
EPSCS Enhanced Private Switched Communications Service
EPSF Encapsulated PostScript Format
EPSI EPS Interchange
EPSR Exception-Time Processor Status Register
EPSS Experimental Packet-Switching Service (UK)
EPT Engineering/Provisioning Tool
EPV Entry Point Vector
EQ Equal To
EQ Equalizer
EQ Equipment
EQAC Equal Access
EQC Equipment Class
EQE Equalization Enable
EQI Equipment Identifier
EQI ETSI Quality Index
EQL EQuaLiser
EQM ETSI Quality Management (programme)
EQN Equation
EQPEC Equipment Product Engineering Code
eqpt Equipment
EQR Electronics Quality Registry
EQTV Extended Quality Television
EQU Equate
EQU_ACC Equal Access
EQWT Equippage, Wrong Type
ER Echo Replica
ER Elastic/Rigid
ER Electronic Radiology
ER Engineering Route
ER Entity Relationship
ER Entity-Relationship
ER Equipment Register
ER Ericsson Review (periodical)
ER Error
ER Event Register
ER Exception Report
ER Explicit Rate
ER Explicit Route
ER Extended Range
ER ISO country code for Eritrea
ER PDU Error Data Protocol Unit (OSI-TP)
ERA Entity Relationship Attribute
ERAM Egress RAM
ERASMUS EC Actions Scheme for the Mobility of University Students
ERB Emergency Ringback
ERBIS Einheitliches rechnergestutztes Betriebsinformationssystem
(OAM application for providing on-line documentation)
ERC Electrical Rule Checking
ERC European Radio Commission
ERC European Radiocommunications Committee
ERC Explicit Rate Control
ERC Explicit Route Control
ERCC ERror Checking and Correction
ERCO Entry Rules Control Object (CCA/VTS)
ERCS Extended Reference Concrete Syntaxes
ERD Emergency Recovery Display
ERD Entity Relationship Diagram
ERE Extended Regular Expression
ERF Event Reporting Function
ERG Electro RetinoGram
ERI Exception Response Indicator (SNA)
ERL Echo Return Loss
Erl Erlang
ERL ERror Line
ERLC Extended Range Line Card
ERLE Echo Return Loss Enhancement
ERLL Enhanced Run Length Limited
ER-LSP Explicitly Routed Label-Switched Path
ERM EMC and Radio Spectrum Matters
ERM Erasure Mode
ERM Explicit Rate Manager
ERM Explicit Rate Marking
ERMES European Radio Message System
ERMES European Radio Messaging Service
ERMES European Radio Messaging System
ERMF Event Report Management Function
ERN Explicit Route Number (SNA)
ero Entity Reference Open
ERO European Radio Office
ERO European Radiocommunications Office
ERO Explicit Route Object
EROS Emitter-Receiver for Optical Systems
EROS European Ranging Observations to Satellites
EROW Executive Right of Way
ERP Ear Reference Point
ERP Effective Radiated Power
ERP Enterprise Resource Planning
ERP Equivalent Radiated Power
ERP Error Recovery Procedure
ERP Estimated Retail Price
ERR Error
ERR Error message
ERR Protocol Data Unit Error
ERR Response to end of Retransmission
ERS Electronic Register-Sender
ERS Emergency Reporting System
ERS Engineering Requirement Specification
ERS European Remote sensing Satellite
ERS Event Reporting System
ERS Existential Refusal Set
ERS Extended Ring Search
ERT Emergency Response Team
ERT Enhanced Remote Thumbwheel
ERT Estimated Repair Time
ERT Event Register Temporary
ER-TPOU Error Transport Data Protocol Unit
ERTS Error Rate Test Set
ERU Emergency Recovery Utility
ERV Enhanced Roamer Validation
ERWM Expensive Route Warning Message
ERWT Expensive Route Warning Tone
ES Earth Station
ES Echo Suppressor
ES Edit Style
ES Emergency Service
ES Emergency Services
ES End Station
ES End System
ES Enhanced Security
ES Errored Second
ES Errored Seconds
ES ETSI Secretariat
ES European Standard
ES Exception Summary
ES Expanded Spectrum
ES Expert System
ES Extra Segment
ES ISO country code for Spanish State (Spain)
ESA Editing and Standards Approval department (ETSI)
ESA EFTA Surveillance Authority
ESA Emergency Services Adjunct
ESA Emergency Stand Alone
ESA End of Selected Area
ESA Enterprise System Architecture (MVS/IBM)
ESA European Space Agency
ESA European Statistics Administration
ESA Extended Service Area
ESA Extended System Architecture
ESAC Electronic Surveillance Analysis Center
ESAC Electronic Switching Assistance Center
ESAC Electronic Systems Assistance Center
ESAC Emergency Stand-Alone Circuit
ESAT Employee Satisfaction
ESAT Employee Satisfaction Action Team
ESAT Employee Satisfaction Team
ESB Emergency Service Bureau
ESB European Standardization Board
ESBC Emergency Services Bureau Capability
ESBC Emergency Services Bureau Compatibility
ESBC Enhanced Single-Board Computer
ESBT Emergency Services Bureau Terminability
ESC Echo Suppressor Control
ESC Emergency Services for China
ESC Engineering Service Circuit
ESC Enhanced Services Complex
ESC Escape
ESCA Electron Spectroscopy for Chemical Analysis
ESCLIST Escape List
ESCO Emergency Service Central Office
ESCON Enterprise Systems CONnection
ESCORT EBU system for the classification of radio and television programmes
ESCR Elementary Stream Clock Reference
ESD Electronic Software Delivery
ESD Electronic Software Distribution
ESD Electrostatic Discharge
ESD Electrostatic Sensitive Device
ESD End of Stream Delimiter
ESD End System Designator
ESD Errored Seconds Daily Threshold
ESD European Standards Database (CEN)
ESD Extended State Diagram
ESD External Symbol Dictionary
ESDI Enhanced Small Device Interface
ESDI Enhanced Small Disk Interface
ESDN Enhanced Secondary Directory Number
ESDS Electrostatic Discharge Sensitive
ESDS Entry Sequenced Data Set
ESE Encapsulated Software Entities
ESEL Electronic Shelf Edge Labelling
ESF Edge Spread Function (Imaging)
ESF European Science Foundation
ESF Extended Super Frame
ESF Extended Superframe
ESF Extended Superframe Format (ATT)
ESF Extended Superframe Format (Digital Datacommunications)
ESG Emergency Service Group
ESG Emergency Services Group
ESH Embedded Shell
ESH End System Hello
ESH Errored Seconds Hourly Threshold
ESHO Extended Soft Hand-Off
ESI End Station Identifier
ESI End System Identifier
ESI Enhanced Service Initiative
ESI Environment Science Index
ESI Equivalent Step Index (Profile) (Optical Data Communications)
ESI Extended Source Index Register
ESI External Synchronisation Input
ESI External Synchronization Interface
ESID Effective Segment ID
ESIG European SMDS Interest Group
ESIG European SMDS Interest Group
ESIOP Environment-Specific Inter-ORB Protocol
ESIS Element Structure Information Set
ESIS End System to Intermediate System
ES-IS End System to Intermediate System protocol
ESL Essential Line
ESL Essential-Service Line
ESLAM Essential Line for Analog Member of EKTS
ESLIC Enhanced Subscriber Line Interface Circuit
ESLUA European SL-1/Meridian 1 Users Association
ESMA Expanded Subscriber Carrier Module Access
ESME External Short Message Entity
ESMR Enhanced Specialized Mobile Radio
ESMR Extended Specialized Mobile Radio
E-SMR Enhanced Specialized Mobile Radio
ESMS Echo Suppressor Measuring Set
ESMTP Extended SMTP
ESMTP Extensions to SMTP
ESMU Enhanced Subscriber Carrier Module Urban
ESN Electronic Serial Number
ESN Electronic Switched Network
ESN Electronic Switching Network
ESN Emergency Service Number
ESN Enhanced Services Network
ESO Echo Suppressor, Originating
ESO Emergency Service Order
ESO European Space Observatory (in Chile)
ESO European Space Organization
ESO European Standardization Organization
ESO External Synchronisation Output
ESOC European Space Operation Centre
ESOG EUTELSAT Systems Operations Guide
ESP Employee Services Portfolio
ESP Encapsulating Security Payload
ESP End of Speaker Identification
ESP Engineering Services Practices
ESP Enhanced Serial Port
ESP Enhanced Service Provider
ESP Enhanced Services Protocol
ESP Enhanced Services Provider
ESP Essential Service Protection
ESP Estimated Sale Price
ESP Extended Stack Pointer
ESPA Equipment Space Planning Algorithm
ESPA European Selective Paging Association
ESPC No. 1 ESS Stored Program Control
ESPCS Enhanced Private Switched Communications Service
ESPG Equipment Space Planning Guideline
ESPN Entertainment and Sports Programming Network
ESPP Enhanced Service Provisioning Plarform
ESPRIT European Strategic Programme for Research and development in Information Technology
ESR Equivalent Series Resistance
ESR Errored Second Ratio
ESR Event Service Routine
ESR Extended Self-Contained Ring
ESR Extended Spectral-Response
ESRB Entertainment Software Ratings Board
ESRO Efficient Short Remote Operations
ESS Electronic Switching System (Bell)
ESS Enhanced Surveillance Services
ESS Environmental Stress Screening
ESS European Standardization System
ESS Extended Service Set
ESSE Embedded Systems Software Environment
ESSI Enhanced Synchronous Serial Interface
EST Eastern Standard Time
EST Echo Suppressor Terminal
EST Echo Suppressor, Terminating
EST Enhanced Service Testing
EST Environmental Stress Testing
EST Establish
EST Establish hunt or call pickup group
ESTEC European Space research and TEchnology Centre
ESTELLE Extended finite State Transition Language
ESTO Electronic Systems Technology Office
ESTS Echo Suppressor Testing System
ESTU Enhanced Services Test Unit
ESU Empty Signal Unit
ESU Exhange Signaling Unit
ESUG European Smalltalk User's Group
ESV Extended State Variable
ESW Embedded Software
ESWL Extracorporeal Shock-Wave Lithotripsy (Medical)
ESZ Emergency Service Zone
ET Eject Tape
ET Elapsed Time
ET Electrical Typewriter
ET Emerging Technologies
ET End Terminal
ET Engaged Tone
ET Ephemeris Time
ET Exchange Terminal
ET Exchange Termination
ET Exchange Terminator
ET Extension Type
ET ISO country code for Ethiopia
ETA Enhanced Terminal Access
ETA Estimated Time of Arrival
ETAC Electronic Technical Assistance Center
ETACS Extended Total Access Communications System
ETACS Extended Total Access System
Etag End Tag
ETAS Emergency Technical Assistance Service
ETB End of Transmission Block
ETC Electronic Toll Collection
ETC Enhanced Throughput Cellular
ETCCC European Testing and Certification Coordination Council
ETCI Electro-Technical Council of Ireland (IRL)
ETCO European Telecommunications Consultancy Organization
ETCOM European Testing & Certification for Office and Manufacturing (Agreement Group)
ETCOM European Testing for Certification for Office and Manufacturing Protocols
ETDC Electronic Traffic Data Converter
ETDM Electrical Time Division Multiplexing
ETDMA Extended Time Division Multiple Access
E-TDMA Enhanced TDMA
E-TDMA Extended TDMA
ETE End-To-End
ETE Equivalent Telephone Erlangs
ETFCC Elapsed Time From Carrier Connect
ETFTP Enhanced Trivial File Transfer Protocol
ETG EWOS Technical Guide
ETG EWOS Technical Guide
ETH (Swiss Federal Institute of Technology)
ETH Eidgenossische Technische Hochschule
ETHERIP Ethernet within IP
ETI External Traffic Indicator
ETL Effective Testing Loss
ETLA Extended Three-Letter Acronym
ETM Element Test and Maintenance
ETMS Enhanced TOPS Message Switch
ETN Electronic Tandem Network
ETNA Ericsson Transport Network Architecture
ETNF European Telecom Numbering Forum
ETNO Association of Public Telecommunications Network Operators
ETNO European Telecommunications Network Operators' Association
etno micro (10-6)
ETNS European Telephony Numbering Space
ETO Equalized Transmission Only
ETOM Electron-Trapping Optical Memory
ETP Event Transition Procedure
ETP Expertise Training Plan
ETPS Enhanced Toll Position System
ETR Early Token Release
ETR Electronically Tuned Receiver
ETR Enhanced Tip/Ring
ETR Estimated Time of Restoral
ETR Estimated Time to Restore
ETR ETSI Technical Report
ETR European Technical Report
ETS Electronic Tandem Switch
ETS Electronic Tandem Switched
ETS Electronic Tandem Switching
ETS Electronic Telephone Set
ETS Electronic Translator System
ETS Enhanced Time Switch
ETS Enterprise Technology Services
ETS Equivalent Time Sampling
ETS European Telecommunication Standard (ETSI)
ETS European Teleprocessing Systems
ETS Executable Test Suite
ETS-4 Electronic Tandem Switch-4 Wire
ETSA European Telecommunication Services Association
ETSAG European Telecommunications Standards Awareness Group
ETSBES Electronic Tandem Switching Billing Enhancements
ETSDU Expedited Transport Service Data Unit
ETSI European Telecommunications Standards Institute
ETUC European Trade Union Confederation
ETV Educational Television
ETV External Testcase Verification
ETW Enhanced Two-Way WATS
ETX End of Text
EU End User
EU European Union (new name for EEC)
EU Execution Unit
EU External Update
EUC End-User Control
EUC Extended Unix Code
EUCATEL EUropean Conference of Associations of TELecommunication industries
EUCL End User Common Line
EULA End-User License Agreement
EUM Extended Unsuccessful Backward Setup Information message
EUMETSAT EUropean METeorological SATellite system
EUN External Update Notification
EUNET European Unix NETwork
EUPIC End User's Presubscribed Interexchage Carrier
EUR End User Role
EURATOM EURopean ATOMic energy community
EUREKA Europäische Forschungskoordinationsagentur
EUREKA EURopean initiative for collaborative research
EUREKA European Research Coordination Agency
EURESCOM European Institute for Research and Strategic Studies in Telecommunications
EURO- TECH Technisches Komitee des EACEM
EUROCAE EURopean Organisation for Civil Aviation Equipment
EUROCONTROL European Organisation for the Safety of Air Navigation
EUROTECH EACEM Technical Committee
EUSIDIC European Association of Information Services
EUT Equipment Under Test
EUT Equipment Under Test
EUTELSAT European Telecommunication Satellite Organization
EUTELSAT European Telecommunications Satellite Organization
EUUG European UNIX User Group
EUV Extreme Ultra Violet
eV Electron Volts
eV electronVolt
EV Encoding Variation
EV Environment Variable
EV Equipment View
EV Event
EV Extreme Value
EVE European Videoconference Experiment
EVE Extreme Value Engineering
EvI Event Information
EVK Evaluation Kit
EVL Evolution Rule Language
EVM Event Management Layer
EVP EnVeloPe
EVP Executive Vice President
EVRC Enhanced Variable Rate Coder
EVS Enhanced Voice Services
EVS Event Services
EVS Expense Vouchering System
EVSB Extensible VERSAbus
EVT Exception Vector Table
EVUA European Virtual Private Network Users Association
EVX Electronic Voice Exchange
EW Electronic Warfare
EWAL Enhanced WATS Access Line
EWB ETAS Warning Bulletin
EWE Engineering Workstation Environment
EWG Europäische Wirtschafts Gemeinschaft
EWI E-mail Waiting Indication
EWL Exchange Work List
EWOS European Workshop for Open Systems
EWOS European Workshop on Open Systems
EWP Electronic White Pages
EWP ETSI Work Programme
EWP Extended Warranty Plan
EWS Electronic Work Station
EWS Elektronisches Wahlsystem (Siemens electronic switching system)
EWS ESTELLE Work Station
EWSD Elektronisches Wahlsystem Digital (Siemens digital switching system)
EWSD Elektronisches Wahlvermittlungssystem Digital (Siemens digital switching system)
EWSM Elektronisches Wahlsystem, MAN (Electronic Switching System, MAN)
EWT Estimated Work Time
EWTN Eternal Word Television Network
EX Execute
EX Exercise
EX Exit Notification
EX EXpedited data
EX Instruction Execution
EXB Extension Bridging
EXC Exception
ExCA Exchangable Card Architecture
EXCA Exchangeable Card Architecture
EXCL Exclusive
EXCON Expand and Concentrate
EXD MDII: Address Signaling Error- Extra Digit
EXE Executable
EXE Executable File
EXE EXEcute
EXEC Executable
EXEC Execute
EXEC EXECute
EXECOM ETSI Executive Committee
EXIP Exception-Time Execution Instruction Pointer
EXM Exit Message
EXND External Node
EXP EXPonential function
EXP Exports file
EXP MDII: Address Signaling Error- Extra Pulse
EXR Exception Request
EXRL Exception Rate Line
EXRQ External Request
EXT Extension
Ext Extension
EXT Extension File
EXT Extension Shelf
EXT External
EXT External Alarms
EXT SRC Extended Search
EXTC Extend Call message
ExT-ID Exchange and Trunk Identity
EXTN Extension
EXTND Extended
ExTS Executable Test Suite
EYP Electronic Yellow Pages
eZIF Electrically-Activated Zero Insertion
F "Final character" registered by ISO 2022 registration authority
F Failed
F Farad
F Farenheit
F Fellow
F Final
F Final bit
F Fixed
F Fixed length
F Flag
F Flow
F Forecast
F Forward Compatibility
F Framing
F French
f Frequency
F FTAM Service
F Fully Associated (link)
F Future
F&A Facilities and Equipment System
F/B Fuse Block
F/RSC Fiber Remote Switching Center
F/SSS Facility/Service Selective Signaling
F/W Firmware
F/W Framework
F/X Effects
f1 frequency 1
f2 frequency 2
F2F Face to Face
F2XM1 FP Compute 2**x- 1 (80x86 inst)
FA FachAusschuß
FA Facility Agent
FA Factory Automation
FA Fast Acting
FA Fast Answer
FA Fax Adapter
FA Feature Activation
FA Feature Activation information element
FA Feature Activator
FA Feature Activators
FA Fermeldeampt (Data Processing Regional Area)
FA Fernmeldeamt (Telecommunication Office) (Telecommunications Exchange)
FA File Administrator
FA First Available
FA Foreign Agent
FA Forwarding Agent
FA Frame Address
FA Frame Alignment
FA Framework Technical Advisory
FA Fremdanschaltung (ISDN out-of-area connection)
FA Full Allocation
FA Functional Area
FA Fuse Alarm
FAA Facility Accepted Message
FAA Federal Aviation Administration
FAA Federal Aviation Agency (USA)
FAA Forced Agent Availability
FAAR Fixed Automatic Alternative Routing
FAC Facilities Administration Center
FAC Facility
Fac Facility
FAC Facility Message
FAC FACsimile
FAC Fan Alarm Card
FAC Final Assembly Code
Fac i Facility Indicator
FACBC Facility Number Bearer Capabilities
FACCH Fast Associated Control Channel
FACCH/F Fast Associated Control Channel/Full Rate
FACCH/F Full rate Fast Associated Control CHannel
FACCH/H Fast Associated Control Channel/Half Rate
FACCH/H Half rate Fast Associated Control CHannel
FACD Facility Accepted message
FACD Foreign Area Customer Dialing
FACE Field-Alterable Control Element
FACET Flexible Advanced Capacity Engineering Tool
FacI i Facility Information Indicator
FACID Facility Number
FACREQ Facilities Request
FACS Facilities Assignment and Control System
FACS Facility Administration Control System
FACSFG Facility Number/Simulated Facility Groups Association
FACT BRI Feature Activator Indicator Trigger
FACT First Application Conformance Test
FACT Functional Auditable Combined Testing
FAD Facility Access Digroup
FAD Facility Deactivated Message
FADN Feature Activators Per DNCT
FADS Force Administration Data System
FADSHADS FADS Hotel Administration Data System
FADU File Access Data Unit (FTAM)
FAF Facility Failure
FAFI Feature Activator/Feature Indicator
FAFI Paired Feature Activators-Feature Indicators
FAFIDN Paired Feature Activators-Feature Indicators Per DNCT
FAFIHMBS Paired Feature Activators-Feature Indicators Per Hunt
Make Busy Application Set
FAFISHS Paired Feature Activators-Feature Indicators Per Stop Hunt Application Set
FAHMBS Feature Activators Per Hunt Make Busy Application Set
FAI Facility Information Message
FAIGEN FAFI Generic Dialog
FAIM Frameworks with Architectural Implementations
FAIPOC FAFI Programming Outside the Context of a Call
FAIRSS FAFI Recognition and Starter Service
FAISUP FAFI Status Update
FAL Frame Alignment Loss
FAM Fast Access Memory
FAM File Access Method
FAM Final Address Message
FAM Forward Address Message
FAM The Family Channel
FAMAE Facility Agent MAE
FAME Fast Multiphase Excitation (Nuclear Magnetic Resonance)
FAMOS Floating-Gate Avalanche Metal Oxide Semiconductor
FAMOS Floating-gate Avalanche MetalOxide Semiconductor
FAN Flexible Access Network
FANI Flexible Automatic Number Identification
FANP Flow Attribute Notification Protocol
FANS Future Air Navigation System
FAOZ Fernmeldeamt-Ordnungszahl (Identification of Telecommunications Exchange)
FAP Feature Alteration Point
FAP Feature Appearance
FAP Format and Protocol
FAQ Frequently Asked Questions
FAR Facility Request Message
FAR False Alarm Rate
FAR Fixed Alternative Routing
FAR Flash during Audible Ringing Utility
FARnet Federation of American Research Networks
FARS Federal Acquisition Regulations
FAS Facility Associated Signaling
FAS File Access Subsystem
FAS Frame Alignment Signal
FAS Frame Alignment Symbol
FASHS Feature Activators Per Stop Hunt Application Set
FASIC Function- and Algorithm-Specific Integrated Circuit
FAST Fairchild Advanced Schottky TTL
FAST Family-oriented Abstraction, Specification, and Translation
FAST Federation Against Software Theft (UK)
FAST First Application System Test
FAST Forecasting and Assessment in Science and Technology
FAST Frequency Agile Sharing Technology
FASTAR Fast Automatic Restoration
FASTPLA FAST Programmable Logic Array (Fairchild Semicond.Inc)
FAT File Allocation Table
FAT File Allocation Table (DOS)
FAT Final Acceptance Testing
FAT Foreign Area Toll
FAT Foreign Area Translation
FAT Foreign Area Translator
FAT Framework Architecture Team
FAW Frame Alignment Word
FAX Facsimile
Fax Facsimile
FAXoIP Facsimile over Internet Protocol
FAZAM Full Armor Zero Administration
FB FrameBuilder
FB Frequency correction Burst
FB Frequency Correction Burst
FB Fuse Block
FBA Call Forward Busy Allowed
FBA Fair Buffer Allocation
FBAS Farbart, Bildinhalt, Austast, Synchron(-Signal)
FBC Facilities-Based Carrier
FBC Facility Bearer Channel
F-BCCH Fast Broadcast Control Channel
FBD Call Forward Busy Denied
FBD Full Business Day
FBD Functional Block Diagram
FBE Frame Bonding Equaliser
FBG Foreign Battery or Ground
FBPSM Fixed Block Pool Store Manager
FBR F-Bus Terminator/Repeater
FBS Flexible Bandwidth Service
FBSM File Based Service Management
FBSOA Forward Biased Safe Operating Area (Power Semiconductors)
FBSS Full Band Spread Spectrum
FBT Fused Biconic Taper
FBus Frame Bus
Fbus Frame Bus
FBUS Frame Transport Bus
F-BUS Frame Transport Bus
FC Facility Code
FC Facility Component
FC Fast Channel
FC Fast Class
FC Feature Close
FC Feature Control
FC Feedback Control
FC Fibre Channel
FC Final Compile
FC First Call
FC Flex Call
FC Flexible Calling
FC Flow Control
FC Frame Control
FC Frame Count
FC Function Code
FC Functional Call
FC Functional Capability
FC Functional Component
FC Functional Configuration
FC3 Flexible Call 3
FC4 Failure Condition
FCA Feature Code Access
FCA Fibre Channel Association
FCA Fixed Channel Allocation
FCA Fixed Channel Assignment
FCAPS Fault, Configuration, Accounting, Performance, Security Management
FCB Feature Control Block
FCB File Control Block
FCB Flexible Calling Billing Records
FCB Frequency Coordination Board
FCC Federal Communications Commission (US)
FCC File Carbon Copy
FCC Flexible Call Conference
FCC Flow Control Consortium
FCC Framework Capabilities Capture
FCCH Flexible Calling Consultation Hold
FCCH Frequency Correction CHannel
FCCH Frequency Correction Channel
FCCSET Federal Coordinating Committee for Science, Engineering, and Technology
FCD Facsimile Coded Data
FCD Flexible Call Drop
FCD Public Feature Code Trigger
FCDB Feature Control Data Base
FCE Front End Control Element
FCEL Fixed Cellular
FCF Facsimile Control Field
FCF Fast Control Field
FCF Flexible Call Forwarding
FCFA Public Feature Code Trigger and BRI Feature Activator Indicator Trigger
FCFS First-Come First-Served
FCG False Cross or Ground
FCHD Flexible Calling and ISDN Hold Display
FCHS FP Change Sign (80x86 inst)
FCI Flexible Calling Feature Interactions
fci Flux Changes Per Inch
FCI Forward Call Indicator
FCI Forward Call Indicators
FCI Forward Congestion Indication
FCIF Flexible Computer Interface Format
FCIFI Flexible Calling Invoke from Idle
FCIP Forward Call Indication Parameter
FCL Fibre Channel Loop
FCL Fixed Channel List
FCM Fabric Control Message
FCM Functional Call Management
FCM Signaling Traffic Flow Control Messages
FCMP Functional Component Management Plan
FCO FiberCenter OM Acquisition
FCO Field Change Order
FCOT Fiber Central Office Terminal
FCP Ferry Control Protocol
FCP Fibre Channel Protocol
FC-PH Fibre Channel Physical and Signaling Interface
FCPN Flow Control Parameter Negotiation
FCR Function Code Register
FCS Facsimile Communications System
FCS Fast Circuit Switching
FCS Federation of Communications Services (UK)
FCS Fibre Channel Standard
FCS File Control Services
FCS First Customer Shipped
FCS Flexible Charging System
FCS Frame Check Sequence (HDLC, LAPB)
FCST Forecast
FCT Field-Controlled Thyristor (GTO-Thyristor)
FCT Flexible Call Transfer
FCTS Ferry Clip Based Test System
FCU Floating-Point Conversion Unit
FCVC Flow Controlled Virtual Channel
FCX Flexible Calling Transfer
FD FACT Done
FD Family of Documents
FD Fault Detection
FD Fault Display
FD Feature Description
FD File Descriptor
FD File Directory
FD Finished Dialing
FD Floppy Disk
FD Formal Description
FD Format Discriminator
FD Frequency Division
FD Full Duplex
FD Functional Description
FD&R Fault Detection and Recovery
FD/PSK Frequency-Differential/Phase Shift Keyed
FDA Feature Data Area
FDA Food and Drug Administration
FDB Feature Data Block
FDB Feature Database
FDB Functional Description Block
FDBQ Feature Data Block Queue
FDC First Data Corporation
FDC Floppy-Disk Controller
FDCT Forward Discrete Cosine Transform
FDD Fault Detection Driver
FDD Floppy Disk Drive
FDD Frequency Division Duplex
FDD Frequency Division Duplexing
FDDI Fiber Distributed Data Interconnect
FDDI Fiber Distributed Data Interface
FDDI Fibre (Optic) Distributed Data Interface
FDDI Fibre-Distributed Data Interface
FDDI/DAX Fibre Distributed Data Interface Dual Attach
FDDI-II FDDI II
FDDSF Field Direction-Delay-Spread Function
FDE Facility Deactivated message
FDE Feature Designer Environment
FDE Feature Development Environment
FDE Frame Development Environment
FDE Frequency-Domain Equalization
FDE Full Duplex Ethernet
FDER Field Data Entry Rules (CCA/VTS)
FDF (Optical) Fibre Distribution Frame
FDF Fiber Distributing Frame
FDF Fiber Distribution Frame
FDH Full-Duplex Handshake
FDHP Full-Duplex Handshaking Protocol
FDI Feeder Distribution Interface
FDI Fiber Distribution Interface
FDI Functional Description Inspection
FDIS Final Draft International Standard
FDK Frame Developer's Kit
FDL Facility Data Link
FDLC FDL Control Register
FDM Feature Description Manual
FDM Frequency Division Multiplex
FDM Frequency Division Multiplexed
FDM Frequency Division Multiplexing
FDMA Frequency Division Multiple Access
FDN Features Denied
FDN Fiber Distribution Network
FDN Fixed Dialing Number
FDN Foreign Directory Name
FDN Forward-to Directory Number
FDNR Frequency-Dependent Negative Resistor
FDNZ First Digit Not Zero
FDOC Feature Document
FDOC Focused Destination Overload Control
FDOS Floppy-Disk Operated System
FDPC Font Development and Promotion Center
FDPLL Fully-Digital Phase-Locked Loop
FDR Frequency Dependent Rejection
FDS Fundamental Data Structure
FDT File Descriptor Table
FDT Formal Description Technique
FDT Formal Design Technique
FDT Framework Design Team
FDT Framework Development Team
FDT Full Digitone
FDTD Finite Difference Time-Domain
FDTS Formal Description Techniques
FDU Floppy Disk Unit
FDX Full Duplex
FDX Full DupleX operation
FE Family of Equipment
FE Far End
FE Finite Element
FE Format Effector
FE Frame Erasure
FE Framing Error
FE Function Element
FE Functional Element
FE Functional Entity
FE FunkEntstörung (ÖVE: FA-FE)
Fe Nominal Channel Centre Frequency
FEA Finite Element Analysis
FEA Functional Entity Action
FEAC Far End Alarm Channel
FEAC Far-End Alarm and Control
FeAfD Fetnsprechauftragsdienst (Call Forward to Message-Taking Service)
FEAL Fast Encipherment Algorithm
FEAM Format Effector Action Mode
FEAM Functional Entity Access Manager
FEAT Feature
FEATSIM Feature Simulation
FEATSIM Feature Simulator
FEBE Far End Block Error
FEC Forward Error Correction
FEC Forwarding Equivalence Class
FEC Forwarding Equivalency Class
FECG Foetal Electro Cardio Gram
FECN Forward Explicit Congestion Notification
FECV Far-End Code Violation
FED Field Emission Display
FED Field-Emitter Display
FED STD FEDeral government STanDard (USA)
FEDIX Federal Information Exchange
FEFA Far End Failure
FeHAs Fernsprechhauptanschluss (Telephone Main Terminal)
FEI Frame Erasure Indication
FELB Far-End Loopback
FELP Far-End Loop Test
FEM Finite Element Methode
FEMF Foreign Electromotive Force
FEN Forsythe-Edwards Notation
FEOFF Far-End Office
FEP Fluorinated Ethylene Propylene ("Teflon" Fluorocarbon Resin)
FEP Front End Processor
FEP Front-End Processor
FEPC Far End Point Code
FEPO Far End Processor Outage
FEPS Facility and Equipment Planning System
FEPS Fault Event Processing System
FER Frame Erasure Rate
FER Frame Erasure Ratio
FER Frame Error Rate
FeRAM Ferroelectric RAM
FERETS Foreign Exchange Routine Evaluation Testing System
FERF Far End Receive Failure
FERF Far End Reporting Failure
FERF Far-end Receive Failure Message
FES Fixed Earth Station
FES Frequency Encoding Signal
FES Frequency Exchange Signalling
F-ES Fixed End System
FESA Forced Emergency Stand Alone
FESS Flywheel Energy Storage System
FET Field Engineering Terminal
FET Field-Effect Transistor
FET Field-Effect Transistor
fet Functionally Equivalent To
FETM Format Effector Transfer Mode
FEU Floating-Point Execution Unit
FEV Far End Voice
FEV Feature Event
FeV Fernsprechvermittlungsbetrieb (Telephone Switching Office)
FEX Foreign Exchange
FEXT Far-End Crosstalk
FF Fast Feature
FF Fast Forward
FF Field Function
FF First-Fit
FF Fixed Filter
FF Flip-Flop
ff Following
FF Form-Feed (ASCII Character)
FF&P Features, Functions, and Performance
FFAPI File Format Applications Programming Interface
FFC Free Format Coding
FFDT FDDI Full-Duplex Technology
FFH Fast Frequency Hopping
FFII Future Forum II
FFM First Failure to Match
FFM Functional Feature Management
FFOL FDDI Follow-On LAN
FFP Features, Functions & Performance
FFQ Fluid-Flow Queuing
FFRB Field Failure Review Board
FFRDC Federally Funded R&D Center
FFRN Four-Fiber Ring Node
FFS Fast File System
FFS For Further Study
FFSK Fast Frequency-Shift Keying
FFT Fast Fourier Transform
FG Feature Group
FG ForeGround
FG Frame Ground
FG Framework Ground
FG Functional Group
FGA Feature Group A
FG-A Feature Group A
FGASO Feature Group A Serving Office
FGB Feature Group B
FG-B Feature Group B
FGBA Feature Group B Area
FGBEO1 Feature Group B End Office Type 1
FGBEO2 Feature Group B End Office Type 2
FGBEO3 Feature Group B End Office Type 3
FGBT Feature Group B Tandem Switch
FGC Feature Group C
FG-C Feature Group C
FGCS Fifth Generation Computer System
FGD Feature Group D
FG-D Feature Group D
FGE Feature Group E
FG-E Feature Group E
FGF Feature Group F
FG-F Feature Group F
FGL Forth Generation (Programming) Language
FGND Frame Ground
FGR Frame Ground Reference
FGW Floor Ground Window
FH Fixed Host
FH Frame Handler
FH Frame Handler function
FH Frequency Hopping
FH/SS Frequency Hopping Spread Spectrum
FHD Fixed Head Disk
FHNR Fixed Nonhierarchical Routing
FHR Fixed Hierarchical Routing
FHSS Frequency Hopping Spread Spectrum
FI Fabric Interface
FI Fabric Interface
FI Facility Information
FI FACT Identified
FI Fault Insertion
FI Feature Indication
FI Feature Indication Information Element
FI Feature Indicator(s)
FI Feature Interaction
FI Format Identifier
FI Format Indicator
FI Function Index
fi Internet country code for Finland
FI ISO country code for Republic of Finland
FIAT Functional Interactive Asynchronous Transaction
FIB Fast Input Buffering
FIB Forward Indicator Bit
FIB Forwarding Information Base
FIBO Front-In Back-Out
FIBR Forward Indicator Bit Received
FIBT Forward Indicator Bit Transmitted
FIBX Forward Indicator Bit Expected
FIC FBus Interface Controller
FIC F-Bus Interface Controller
FIC Flight Information Centre
FID Feature Identifier
FID Feature Interaction Detection
FID Federation International de Documentation
FID Field Identifier
FID File Identifier
FID Fixed station IDentity
FID Format IDentification (SNA)
FID Format Identifier
FID Frame Identification
FIDB Feature Information DataBase
FIDDI FIbre Distributed Data Interface
FIDN Feature Indicators Per DNCT
FIE Facility Information Element
FIEE Fellow of Institution of Electrical Engineers (UK)
FIEEE Fellow of Institute of Electrical and Electronics Engineers, Inc. (US)
FIEIE Fellow of Institution of Electronics and Electrical Incorporated Engineers (UK)
FIF Facsimile Information Field
FIF Fractal Image Format
FIFO First In, First Out (Memory)
FIFO First-In, First-Out
FIG Flash Ignore
FIG Floating Figure (HTML tag)
FIGS FIle Separator
FIHMBS Feature Indicators Per Hunt Make Busy Application Set
FIL Feature Indication Lamp
FILO First-In, Last-Out
FILR Feature Indication Lamp Refresh
FIM Facing Identification Mark
FIM Feature Interaction Management
FIM Feature Interaction Manager
FIM Fiber Interface Module
FIM-A Facing Identification Mark: Courtesy Reply Mark
FIM-C Facing Identification Mark: Business Reply Mark
FIMWN Feature Indication Message Waiting Notification
FIN Facility Information message
FIN Feature ID Number
FIN Finish flag
FIP Fetch Instruction Pointer
FIP Flourescent Indicator Panel
FIP Functional Integration Point
FIPA Federation for Intelligent Physical Agents
FIPS Federal Information Processing Standard (USA)
FIR Fast Infrared
FIR Fault Indication Register
FIR Finite Impulse Response (filter)
FIR Full Intra Request
FIR Full Intra-frame Request
FIRD Feature Interaction Rule Distribution
FIRGG Feature Interaction Rule/Guidelines Generation
FIRST Forum of Incident Response Teams
FIS Floating Instruction Set
FIS Functional Interface Specification
FISHS Feature Indicators Per Stop Hunt Application Set
FISU Fill-In Signal Unit
FIT Failure In Time
FIT Failure Intensity Trend
FIT Failures in 10+9 component hours
FIT Fault Insertion Testing
FIT Focused Improvement Team
FIT Framework Integration Team
FIT Fully Initializing Terminal
FIT Fully-Initializing Terminal
FIT Function Integrity Test
FIT Functional Integration Testing
FITCE Federation of the Telecommunication Engineers of the EC(F)
FITE Forward Interworking Telephone Event
FITL Fiber In The Loop
FITS Flexible Image Transport System
FITS Functional Interpolating Transformation System
FIU Facilities Interface Unit
FIU Facsimile Interface Unit
FIU Fingerprint Identification Unit
FIU Florida International University
FIX Federal Internet Exchange
FJ ISO country code for Fiji
FK Foreign Key
FK ISO country code for Falkland Islands (Malvinas)
FKM Feature Key Management
FKP MDII: Address Signaling Error- False Key Pulse
FKTO Fernmeldekontonummer (Telecommunications Account Number)
FL Failure
FL Fault-Locate
FL Feature List
FL Flash
FL Foreign Listing
FL Fully-Restricted Line
FL U.S. postal code for Florida
FLAG Fiberoptic Link Around the Globe
FLARE Fault Location and Alarm Reporting
FLC Ferroelectric Liquid Crystal
FLC Fiber Loop Carrier
FLC Fixed Length Code
FlCA Flexible Channel Allocation
FLCC Functional Line Card Code
FLCS Fibreoptic Low-cost Connector System (Motorola Inc.)
FL-CU Fiber Loop Central Unit
FLD FieLD
FL-DU Fiber Loop Distribution Unit
FLEN Frame LENgth
FLEX FlexCall
FLEX DID Flexible Direct Inward Dialing
FLEXI Flexible Intercept
FL-I ISDN Fully Restricted Line
FLIC Fiber Link Interface Chip
FLIC Fiber Link Interface Controller
FLIH First Level Interrupt Handler
FLINK Flash/Wink
FLIR Forward-Looking Infra-Red (Military Avionics)
FLIS Fiber Link Interface Shelf
FLIS Fiberized Link Interface Shelf
FLL Frequency-Locked Loop
FL-LA Fiber Loop Line Amplifier
FLO Fixed Link Option
flo Fixed Link Option
FLO Fully-Restricted Originating Line
FLOC Flexure Lift-Off Contact (Relays)
FLO-I ISDN Fully-Restricted Originating Line
FLOP Floating Point Operation
FLOPS Floating Point Operations Per Second
FLORICO Florida-Puerto Rico submarine cable
FLOW Flow Through Provisioning
FLRN Foreign Location Routing Number
FLS Flash Utility
FLS Free Line Signal
FLS Free Terminating Line Service
FLT Fault
FLT Float Voltage
FLT Fully-Restricted Terminating Line
FLT-I ISDN Fully-Restricted Terminating Line
FLX Fiber Loop Access
FM Fabric Management
FM Facility Monitoring
FM Failure to Match
FM Fault Management
FM Fault Monitor
FM Feature Manager
FM Focused Maintenance
FM Force Management
FM ForM
FM Frame Memory
FM FrameMaker
FM Frequency Management (CEPT)
FM Frequency Modulation
FM Function Management (SNA)
FM ISO country code for Federated States of Micronesia
FM SLP Feature Management Service Logic Program
FMA Failure Mode Analysis
FMA Fast Matrix Architecture
FMA First Market Application
FMA FRAMES Multiple Access
FMA Fused Multiply-Add
FMAC Facility Maintenance and Administration Center
FMAC Floating-Point Multiply-and-Accumulate
FMAS Facility Management System
FMB Fabric Motherboard
FMB Functional Message Block
FMBS Frame-Mode Bearer Services
FMC Fixed Message Cycle
FMC Fixed/Mobile Convergence
FMC Flight Management Computer
FMC Force Management Center
FMCRT Force Management CRT
FMCT Formal Methods in Conformance Testing
FMCW Frequency Modulated Continuous Wave
FMD Follow-Me Diversion
FMD Function Management Data
FMEA Failure Mode and Effect Analysis
FMEA Fault Modes and Effects Analysis
FMECA Fault Modes, Effects and Criticality Analysis
FMFB Frequency Modulation Feedback
FM-FDM Frequency Modulated-Frequency Division Multiplexed
FMH Function Management Header
FMHS Flexible Material-Handling System
FMID Fixed part MAC Identity
FMIF Frame Mode Information Field
FMIP FMI Protocol
FMK Functional Multiprocessing Kernel
FMM Finite Message Machine
FMO Future Method of Operation
FMP Feature Message Processor
FMP Functional Multiprocessing
FMR Field Management Reporting
FMR Follow Me Roaming
FMR Frequency Modulation Receiver
FMS Fleet Management Service
FMS Flexible Manufacturing System
FMS Flight Management System
FMS Force Management System
FMS Forms Management System
FMSA Fault Management Switch Agent
FMSLP Feature Manager Service Logic Program
FMSM Fault Management Summarization Manager
FMT Fiber Multiplex Terminal
FMT Format
Fmt Format
FMT Frequency Modulation Transmitter
FMTV Frequency Modulated TeleVision
FMU Fan Management Unit
FMU Fan Mount Unit
FMV Foreign Market Value
FMVFT Frequency Modulation Voice Frequency Telegraphy
FN DDOC Section: Functional Description and Specification
FN Facility Number
FN Feature Node
FN Finding Name
FN FiNish
FN Forwarding Number
FN Frame Number
fn Function
FN Functional Description
FN Functional Specification
FN Functionality
FNA Call Forward No Answer Allowed
FNA FLAG Network Architecture
FNA Functional Network Architecture
FNAL Feature Not Allowed Treatment
FNAMEPRV Forced Name Privacy
FNB Function Block
FNC Federal Networking Council
FNC FTS Node Controller
FNC Fujitsu Network Communications
FND Call Forward No Answer Denied
FNLTREAT Final Treatment
FNN Financial News Network
FNO Free Number Origination
FNOC FLAG Network Operations Center
FNOI Further Notice of Inquiry
FNP Front-End Network Processor
FNPA Foreign Numbering Plan Area
FNPRM Further Notice of Proposed Rule Making
FNS Fixed Night Service
FNS Fujitsu Network Switching
FNSI Feature Node/Service Interface
FNT Font Selection
FNT Free Number Terminating
FNU Floatingt-Point Normalization Unit
FNV Future Network View
FNX Extended Function Block
FO Fan-Out
FO Fiber Optic
FO Fixed Output
FO Flash Override
FO Follow-On
FO ISO country code for Faroe Islands
FOA First Office Application
FOA Flexible (Call) Origination Authorization
FOAC Fibre Optic Active Component
FOBP Fibre Optic Back Pointer
FOBS Flexible Call Observing
FOC Faint Object Camera
FOC Fiber Optic Crossconnect
FOC Fiber Optics Communications
FOC Firm Order Confirmation
FOC Flow of Control
FOC Follow-On Call
FOCC Forward Control Channel
FOCS Fiber Optic Communication Systems
FODA Feature Oriented Domain Analysis
FOF Freeze-Out Fraction
FOIRL Fiber Optic Inter-Repeater Link
FOM Factor of Merit
FOM Figure of Merit
FOMAS Fiber Optic Multi-Media Access System
FOMAU Fiber Optic Medium Attachment Unit
FOMDI Fiber Optic Medium Dependent Interface
FON Font file
FOOBAR FTP Operation Over Big Address Records
FOOS Force Out Of Service
FOOT Framework for Object Oriented Testing
FOR FS FOR Further Study
FORM Formatter
FORTE FORmal TEchniques
FORTRAN FORmula TRANslation (programing language)
FORTRAN Formula Translator
FOS Fiber Organizing System
FOSI Format Output Specification Instance
FOT Fiber Optic Terminal
FOT Fiber Optic Transmission
FOT Forward-Transfer Message
FOT Forward-Transfer signal
FOT Frequence Optimale de Travail
FOTAG Fiber Optic Technical Advisory Group (IEEE)
FOTP Fiber Optic Test Procedure
FOTS Fiber Optic Terminal System
FOTS Fiber Optic Transmission System
FOURCC Four-Character Code
FOV Field Of View
FOX Fiber Optic Extender
FOX Field Oxide
Fox Fox Network
FP Fabry-Perot
FP Facilities Processor
FP Facility Processor
FP Fast Paging
FP Feature Processing
FP Feature Processor
FP Field Patch
FP File Pointer
FP File Processing
FP File Processor
FP Fixed Part
FP Flat Pack
FP Flat Package
FP Floating Point
FP Format Prefix
FP Frame Pointer
FP Freephone
FP Full Period
FP Function Processor
FP Functional Processor
FP Functional Programming
FPA Floating Point Accelerator
FPAD Facsimile Packet Assembly/Disassembly
FPAM Fabric Power and Alarm Module
FPC Fan Power Control
FPC Foundation Peripheral Controller
FPC Functional Progression Chart
FPCP Floating Point Co-Processor
FPCR Floating-Point Control Register
FPD File Processor Device
FPD Foreign Potential Detector
FPDP Front Panel Data Port
FPDU FTAM Protocol Data Unit
FPE Feature Processing Environment
FPECR Floating-Point Exception Cause Register
FPEE Floating-Point Exception Envelope
FPF Facility Parameter Field
FPF Feature Processing Framework
FPG Feature Planning Guide
FPG Functional Parameter Group
FPGA Field-Programmable Gate Array
FPH Free PHone (supplementary service)
FPHi Freephone Indicators
FPHS1 Floating-Point Source 1 Operand High Register
FPHS2 Floating-Point Source 2 Operand High Register
FPI Family Programming Interface
FPIAR Floating-Point Instruction Address Register
FPIT Floating-Point Imprecise Operation Type Register
FPLA Field Programmable Logic Array
FPLD Field Programmable Logic Device
FPLF Field Programmable Logic Family
FPLMTS Future Public Land Mobile Telecommunication System(s)
FPLMTS Future Public Land Mobile Telecommunications Services
FPLS Future Public Logic System/Sequencer
FPLS1 Floating-Point Source 1 Operand Low Register
FPLS2 Floating-Point Source 2 Operand Low Register
FPM Fast Packet Multiplexing
FPM Fast Page Mode
FPM Feet Per Minute
FPM Fiber Peripheral Module
FPMH Failures Per Million Hours
FPN Freephone Number
FPO Frame Pointer Optimization
FPO Frequency Planning Organisation
FPOM Feature Processing Off-Site Meeting
FPOM FPE Offsite Meeting
FPP Floating Point Processor
FPPT Floating-Point Precise Operation Type Register
FPR Floating-Point Register
FPRH Floating-Point Result High Register
FPRL Floating-Point Result Low Register
FPRT DMS-Core Footprint
FPS Fast Packet Switching
FPS Favorite Picture Selection
FPS Feature Plan Specification
FPS Foot,Pound,Second (system of measurement)
fps Frames Per Second
FPS Framing Pattern Sequence
FPS/FE Framing Pulse Synchronization-Framing Extended
FPSCR Floating-Point Status and Control Register
FPSP Floating Point Support Package
FPSR Floating-Point Status Register
FPT Forced Perfect
FPU Floating Point Unit
FPV Field Product Validation
FPV Floating Point Value
FPY Failures Per Year
FQ Fair Queuing
FQDN Fully Qualified Domain Name
FR Failure Rate
FR Family of Requirements
FR Feature Reviewed
FR Fixed Routing
FR Flashing Recall
FR Flat Rate
FR FN Release
FR Force Release
FR FRagment
FR Frame
FR Frame Relay
FR Frame Relaying
FR Frame Relaying technique
FR Frame Reset
FR Frames
FR Frequency Response
FR Full Rate
FR Fully-Restricted Line
FR Functional Specification Reviewed
FR Functionality Review
fr Internet country code for France
FR ISO country code for French Republic (France)
F-R Final Operators to Required Operators
FR&O First Report and Order
FR_SS Frame Relay Switching System
FRA Fixed Radio Access
FRA Flat Rate Area
FRAD Frame Relay Access Device
FRAD Frame Relay Assembler/Disassembler
FRAD Frame Relay Assembler/Disassembler Device
FRAM Ferroelectric RAM
FRAM Ferroelectronic Random Access Memory
FRAMES Future Radio Wideband Multiple Access Systems
FRAP Frame Relay Access Processor
FRAR FBUS Rate Adapter and Repeater
FRB Faultsman's Ringback
FRBBS Frame Relay Backbone Service
FRBS Frame Relay Bearer Service
FRC Fault Reporting Center
FRC Final Routing Center
FRC Functional Redundancy-Checking
FRC Functional Reference Configuration
FRCD Forced
FRDS Failure Resistant Disk System
FRDS+ Failure Resistant Disk System Plus
FRE Fully Restricted
FRED Frame Editor
FREDFET Fast-Reverse Epitaxal Diode Field-Effect Transistor (Philips Inc)
FREL Feature Release
FREL Forecast Release
FREQ Frequency
FRF Frame Relay Forum
FRFH Frame Relay Frame Handler
FRI Frame Relay Interface
FRI Frame Relaying Information
FRIED Friedrichschaffen
FRIU Frame Relay Interface Unit
FRJ Facility Reject Message
FRL Facility Restriction Level
FRL Force Release message
FRL Frame Representation Language
FRL Frequently Requested Listing
FRLS Force Release
FRM Fast Resource Management
FRM Forward Resource Management
frm FrameMaker File
FRM Functional Reference Model
FRMR Frame Reject
FRN File Reference Number
frn File Reference Number
FRN Fragmentation Reference Number
FRNO Frame Number
FRO Fire Reporting System Originating
FRO Fire Reporting System Origination
frO frame O
FROM Fusable (Link) Read-Only Memory
FRP Fast Reservation Protocol
FRP Fault Report Point
FRP Final Redirecting Party
FRPH Frame-Relay Protocol Handler
frpi Flux Reversals Per Inch
FRPOS Frame Position
FRPS Frame position
FRQ Facility Request message
FRR Flexible Reroute
FRR Frame Retransmission Rate
FRS Family Radio Service
FRS Fire Reporting System
FRS Flexible Route Selection
FRS Forward Ready Signal
FRS Frame Relay Service
FRS Frame Relay Switch
FRS Fully Restricted Station
FRSC Fiber Remote Switching Center
FRSF Frame Relay Service Function
FRSS Frame Relay Switching System
FR-SSCS Frame Relaying Service-Specific Convergence Sublayer
FRT Fire Reporting System Terminating
FRT Fire Reporting System Termination
FRTE Frame Relay Terminating Equipment
FRTT Fixed Round-Trip Time
FRU Field Replacement Unit
FRU Field-Replaceable Unit
FRU Flexible Reuse
FRWK Framework
FS F Segment
FS FACT Started
FS Failed Screening
FS Failed Seconds
FS Fast Select
FS Fast Store
FS Feature Specification
FS Federal Standard
FS Field Separator
FS Field Support
FS Figure Shift
FS File Separator
FS File System
FS Fixed Service
FS Fixed Subscriber
FS For Sale
FS Frame Signaling
FS Frame Status
FS Frame Switching
FS Frequency Shift
FS Full Scale
FS Full Screen
FS Function Selector
FS Functional Signaling
FS Functional Specification
FS Functional Standard
FS Further Study
F-S Fiat-Shamir
FSA Fast Select Acceptance
FSA Fiber Serving Area
FSA Finite State Automata
FSA Formatter/Storage Agent
FSAN Full Services Access Network
FSB Feature State Block
FSB Functional Signaling Block
FSB Functional Specification Block
FSC Far-end Signal Canceller
FSC Frame Supervisory Controller
FSC Freephone Service Centre
FSC FTS Subnetwork Controller
FSD Feature Specification Document
FSD Feature-Specific Document
FSD File System Driver
FSD Frame Selection and Distribution
FSD Functional Specification Document
FSDB Feature Store Data Base
FSDR Feature Specification Document Review
FSE Field Service Engineering
FSF Fading Safety Factor
FSF Free Software Foundation
FSG Finite State Grammar
FSG Full Steering Group
FSI Facility Subsystem Identifier
FSI Forward Status Indicators
FSI Forward Status Information
FSI Frequency Subset Indicator
FSK Frequency-Shift Keying
FSL File System Layout
FSL Flexible Service Logic
FSLE Fractionally Spaced Linear Equalizer
FSLP Feature Service Logic Program
FSM Finite State Machine
FSM Finite State Model
FSM Firmware Support Manual
FSM Fixed Block Pool Store Manager
FSM Forward Set-Up Message
FSM Free Space Map
FSM Function State Model
FSN Field Specification Notation
FSN File Sequence Number
FSN Fixed System Number
FSN Forward Sequence Number
FSN Frequency Subset Number
FSN Full Service Network
FSNC FSN of Last Signal Unit Accepted by Remote Level 2
FSNF FSN of Oldest MSU in the Retransmission Buffer
FSNL FSN of Last MSU entered into the Retransmission Buffer
FSNR Forward Sequence Number Received
FSNT Forward Sequence Number Transmitted
FSNX Forward Sequence Number Expected
FSO Foreign Service Office
FSO Formatting, Storage, and Output
FSP Facility Services Profile
FSP Flexible Service Profile
FSP Frame Supervision Panel
FSP Frame Supervisory Panel
FSP Frequency Shift Pulsing
FSQ Flat SQuare screen (CRT)
FSR Free System Resources
FSR Frequency Selective Ringing
FSR Frequency Shift Ratio
FSR Frequency Spectrum Requirement
FSR Full-Scale Range
FSS Facility Selective Service
FSS Facility/Service Selective
FSS Fair Share Scheduler
FSS File System Switch
FSS Fixed Satellite Service
FSS Frame Support Subscription
FSS Frame Synchronous Scrambling
FSSS Facility/Service Selective Signaling
FST Fiber Services Terminal
FST Flat Square Tube
FST Flexible Signaling Trunk
FST Force State Transition
FST Four-Square Transform
FST FP Store Real (80x86 inst)
FST Full Service Terminal
FSTN Film Super-Twisted Nematic
FSTYPE Fast Select Type
FSU Fabric Sub-Unit
FSU Field Support Unit
FSU Final Signal Unit
FSU Frame Supervisory Unit
FSW Frame Synchronisation Word
FSXF Frequency Synchronisation Failure
FT FACT Tested
FT Fault Tolerant
FT Feature Test
FT Feature Tested
FT FeeT
FT Fiber Transmission
FT Fibre optics Transmission standards
FT File Transfer
FT First Time
FT Fixed radio Termination (DECT)
ft Foot (Feet)
FT Format Type bit
FT Forward Transfer
FT Fractal Transform
FT Fractional-Tap
FT Frame Transfer (Video)
FT France TELECOM
FT Functional Test
Ft Transit Frequency
FT1 Fractional T1
FT-1 Fractional T1
FT3 Fractional T3
FT-3 Fractional T3
FTA Fault Tree Analysis
FTA Feature Activation
FTA File-Transfer Access
FTA Flexible (Call) Terination Authorization
FTA Frame Transport Address
FTA Free Trade Association
FTA Full Type Approval
FTAC FAST Technical Advisory Council
FTAM File Transfer Access and Management
FTAM File Transfer and Access Management
FTAM File Transfer and Management
FTAM File Transfer, Access, and Management
FTAM Forms Translation and Mapping
FTC Fast Time Constant
FTC Functional Test Case
FTD Field Type Descriptor
FTD Foreign Exchange Toll Diversion
FTD Frame Transfer Delay
FTDS Failure Tolerant Disk System
FTDS+ Failure Tolerant Disk System Plus
FTDS++ Failure Tolerant Disk System Plus Plus
FTE Force Transition Event
FTE Full-Time Equivalent
FTFE Force Transition Failure Event
FTFS Fault Tolerant File System
FTI Feature Indication
FTI Feature Testplan Inspection
FTL Function-Tester (Programming) Language
FTM Feature Testing Methodology
FTM Flat Tension Mask
FTM Frequency Translation Module
FTMI France Telecom Mobiles International
FTMP Ferry Transfer Medium Protocol
ftn Forwarded-To Number
FTNS Fixed Telecommunications Network Service
FTO Fast Turn-Off
FTP File Transfer Program
FTP File Transfer Protocol (Internet)
FTP Foiled Twisted Pair
FT-PNNI ForeThought PNNI
FTR Feature
FTR Feature Tone Receiver
FTRAN File Transfer
FTRGRP Feature Group
FTRKEYS Feature Keys
FTRQ Feature Queuing
FTS FAX-Thru Service
FTS Federal Telecommunications System
FTS Feeder Transmission Section
FTS File Transfer Server
FTS File Transfer Service
FTS File Transfer System
FTS Frame Transport System
FTS Full-Text Search
FTSC Federal Telecom Standard Committee (USA, NCS)
FTSC Federal Telecommunications Standards Committee
FTSP Final Translation Signalling Point
FTT Failure To Train
FTTB Fiber To The Building
FTTC Fiber To The Curb
FTTCa Fiber to the Cabinet
FTTCab Fiber to the Cabinet
FTTEx Fiber to the Extension
FTTF Fiber To The Feeder
FTTF Fiber To The Floor
FTTH Fiber To The Home
FTTK Fiber to the Kerb
FTTLA Fiber To The Last Amplifier
FTTN Fiber To The Neighborhood
FTTN Fiber To The Node
FTTO Fiber To The Office
FTTU Fiber To The User
FTTZ Fiber To The Zone
FTU File Transfer Utility
FTV Facility Test Vehicle
FTZ Fernmeldetechnisches Zentralamt
FTZ Fernmeldetechnisches Zentralamt (D)
FTZ Forschungs- und Technologie Zentrum der DTAG
(Research and Technology Center of DTAG)
FU Fan Unit
FU Functional Unit
FUC Feature Use Charging
FUD Fear, Uncertainty, and Doubt
FUD Functional Unit Deployment
FUL Full Backup Catalog File
FUMP Functional Message Protocol
FUN Frame User Network
FUN The Frye Utilities for Networks
FuND Subscriber from the Radio Network
FUNDES Functional Design System
FUNI Frame Based User-to-Network Interface
FVC First Virtual Corporation
FVC Floating Virtual Connection
FVC Forward Voice Channel
FVC Frequency to Voltage Converter
FVDA Fully Variable Demand Access
FVR Flexible Vocabulary Recognition
FVSIR Flexible Vocabulary Speaker-Independent Recognition
FVSt Fernvermittlungsstelle
(trunk exchange/transit switch in long distance network)
FVstH Manually Switched Trunk Exchange
FVstHand Manually Switched Trunk Exchange
FVW Forward Volume Wave
FW FiberWorld
FW Firmware
FW Frame Word
FW Framework
FW Full Word
FWA Fixed Wireless Access
FWA Flow and Wavelength Assignment
FWCI Firmware Command Interpreter
FWD Forward
FWF First-Window Fibre (850 nm)
FWH Flexible Working Hours
FWHM Full-Width Half-Maximum
FWIW For what it's worth
FWK Framework
FWM Four-Wave Mixing
FWM Four-Wave Multiplexing
FwMunz Fernwahlmuenztelefon (Trunk Dialing Prepayment Telephone)
FWP FiberWorld Products
FWP Finer World Process
FWPC Future Wireless Personal Communications
FWPCS Future Wireless Personal Communications System
FWS Filter Wedge Spectrometer
fwsvc Firmware Service
FWUF Federal Wireless Users Forum
FX Effects
FX Foreign Exchange
FX Foreign Exchange Service
FX ISO country code for Metropolitan France
FX2WAY Foreig Exchange 2-Way Traffic
FXB Foreign Exchange with Battery
FXBO Foreign Exchange with Battery Office End
FXBS Foreign Exchange with Battery Station End
FXC Fiber Crossconnect
FX-CCSA Foreign Exchange-Common Control Switching Arrangement
FXCG Flexible Night Service Configuration
FXCH Floating-Point Exchange
FXDN Fixed Directory Number
FXIN Foreign Exchange Inward Traffic
FXNS Flexible Night Service
FXO Foreign Exchange Office
FXOUT Foreign Exchange Outward Traffic
FXP Feature Transfer Processor
FXPM Fiber XPM
FXR Fast Call Transfer
FXRD Fully Automatic Reperforator Transmitter Distributor
FXS Foreign Exchange Service
FXS Foreign Exchange Subscriber
FXU Fixed-Point Unit
FY Fiscal Year
FYA For your amusement
FYI For Your Information
FZA Fernmeldetechnisches Zentralamt (A)
G Gain g Gehende (Outgoing) G Giga (10+9) G Giga (1000000000 or 1024*1024*1024) G Granularity G Gravitational Force G Gravity G Green G Ground G Group G Guard G Guard time G/T Gain to noise-Temperature ratio g++ GNU C++ Compiler G0 Gate 0 G0A Gate 0A G0B Gate 0B G1 Gate 1 G2 Gate 2 G3 Gate 3 G3 Group 3 G4 Group 4 GA Gemeinschafts-Antennenanlage GA General Assembly (ETSI) GA General Availability GA General Aviation GA Generally Available GA Generator/Analyzer GA Genetic Algorithm GA Geographical Area GA Go Ahead GA Grand Alliance GA Group Alerting GA ISO country code for Gabonese Republic (Gabon) GA U.S. postal code for Georgia GAAF GSF Applications Architecture Forum GaAs Gallium Arsenide GAC GSF Architecture Council GAdC Group AdC GAGR Group Automatic Gain Regulator GAIN Global Advanced Intelligent Network GAL Generic Array Logic (Lattice Inc.) GAM Graphic Access Method GAME Generic AIN Message Encoder GAME Generic AIN Messaging Environment GaN Gallium Nitride GAN Global Area Network GAO General Accounting Office GAO Group Answer Occasional GAOT GSF Agent Object Team GAP Call Gapping GAP Generic Access Profile (DECT term) GAP Generic Address Parameter GAP Ground-to-Air Paging GAP Groupe Analyse et Previsions GAP Groupe d'Analyse(s) et Prognose(s) GAP GSF Agent Productization GAP GSM Automation Platform GAP Guaranteed Access Providers GAPI Gateway Application Programming Interface GAPP Geometric Arithmetic Parallel-Processor GARP Global Atmospheric Research Programme GARP Group Address Resolution Protocol GART Graphics Address Relocation Table GAS Group Alerting System GAS Group Autonome Spécialisé GAS GSBT, ADF, SAFT GAT General Application Template GAT Globalization Architecture Team GAT Group Audio Terminal GAT GSF Architecture Team GATE General Access to X.25 Transport Extension (OSI) GATM Guarded-Area Transfer Mode GATS GATT Services Agreement GATS GSF Activity Tracking System GATT General Agreement on Tariffs and Trade GATT Graphics Address Translation Table GB General Block Gb Gigabit GB Gigabyte GB Group Busy GB ISO country code for United Kingdom of Great Britain and Northern Ireland Gb/s Gigabits Per Second GBCP GISDN Basic Call Prototype GBCPT GISDN Basic Call Prototype Team GBCS Global Business Communications Systems GBG geschlossene Benutzergruppe (Closed User Group) GBH Group Busy Hour GBI Generic Billing Interface Gbit/s Gigabits per Second GBP Gain-Bandwidth Product Gbps Gigabits Per Second GBPS GigaBits Per Second GBS Generic Bridging Service GBSC Group of Blocks Start Code GBW Gain BandWidth Gbyte Gigabyte GC Garbage Collection GC Garbage Collector GC Global Coverage GC Global c-plane GC Graphics Context GC Group Center GC Guard Channel GCA Graphic Communications Association GCAC Generic Call Admission Control GCAC Generic Connection Admission Control GCAP GSM Capacity Automation Package GCAS Global Component Administration System GCC General Conference Control GCC Generic Conference Control GCC Global Cable Conveyance GCC GNU C Compiler GCD Greatest Common Divisor GCE Ground Communications Equipment GCF Gatekeeper Confirm GCF Gatekeeper Confirmation GCHQ Government Communications HeadQuarters GCI General Circuit Interface GCI Global Customer Interface GCL Generic Control Language GCL Global Control and Locate GCL GNA Global C++ Library GCM Generalized Control Model GCM GENIE Communication Manager GCMM Generic C Mobility Management GCO Group Chief Operator GCP Generic Communication Package GCP Generic Communication Protocol GCP Generic Communications Package GCR Global Call Recording GCR Global Call Reference GCR Group Coding Recording (Magnetic Data Storage) GCRA Generic Cell Rate Algorithm GCS GENIE Communications System GCS Global Carrier Switch GCS Ground Control Station GCSP General Cluster Server Process GCST GSF Call Setup Team GCT Greenwich Civil Time GD ISO country code for Grenada GD&R Grinning, ducking, and running GDA Global Directory Access GDA Global Directory Agent GDB GNU Source-Level Debugger gdbm GNU Database Manager GDC General DataComm GDC Global Data Center GDC Graphic Display Controller GDD Generic Data Dictionary GDD Global Data Dictionary GDDM Global Data Distribution Manager GDDM Global Data Download Manager GDDM Graphical Data Display Manager GDDM GSF Data Distribution Model GDE Group Delay Equalizer GDF Group Distribution Frame GDG Generation Data Group GDI Generating System/Data Server Interface GDI Generic Data Interface GDI Graphical Device Interface GDI Graphics Device Interface GDLR Generic Design Layout Record GDM Generic Device Magazine GDMO Generic Data Model for Objects GDMO Guidelines for Defined Managed Objects GDMO Guidelines for the Definition of Managed Objects GDNT Guandong Nortel GDO Grid Dip Oscillator GDOP Geometric Dilution of Precision GDP Generalized Drawing Primitive GDP Generic Digit Parameter GDP Gross Domestic Product GDS General Data Stream (SNA) GDS Global Directory Service GDS Graphic Design Standard GDS Graphics Data Syntax for a multiple workstation interface GDSU Global Digital Services Unit GDT Gas Discharge Tube GDT Global Descriptor Table GDT Graphic Display Terminal GDT Guaranteed Dial Tone GDTE GISDN Development Testing Environment GDTR Global Descriptor Table Register GDX Gated Dielectric Crosspoint GDX Gated Diode Crosspoint GE General Electric Corp. GE Generic Element Ge Germanium GE Greater Than or Equal To GE ISO country code for Georgia GEA Gigabit Ethernet Alliance GEBAF Global Enhanced BAF GEC General Electric Company GECOS General Electric Comprehensive Operating System GEM Graphic Environment Manager GEM Graphical Environment Manager GEM GSM Element Manager GEMS Generic Environment for Messaging on the Switch GEMS Global Electronic Messaging Services GEMS-TTA Generalized Expert Maintenance system Trunk Trouble Analyser (ATT) GEN General GEN Global European Network GenA Generic Address GENCSC Generic Common Signalling Channel GEnie General Electric Network for Information Interchange GENIE Generic Interactive Protocol Engine GENMTC Generic Time-Slot Management Channel GenNo Generic Number GeNoti Generic Notification Indicator GEO Geostationary Earth Orbit GEO Geosynchronous Equatorial (Clarke) Orbit GEOS Geostationary Earth Orbit Satellite GEOS Graphic Environment Operating System GEOSAT Geostationary Orbit Communications Satellite GEP Generic Envelope Parameter GEP Generic Event Processor GER Generic Event Recorder GERM General Entity Relational Model GES Global Enterprise Services GES Ground Earth Station GESA GSF Emergency Stand-Alone (ESA) GETAR GSF Exceptions, Tones, Announcements and Routing GETED GSF End-To-End Delivery GETS Government Emergency Telecommunications Service GEV Giga Electron-Volt GF General Formatter GF Generic Function(s) GF Higher layer information control channel GF ISO country code for French Guiana GFC General Flow Control GFC Generic Fairness Configuration GFC Generic Flow Control GFC1 Generic Fairness Configuration #1 GFD General Feature Description GFE Government Furnished Equipment GFE Graphical Front End GFET GSF Framework Evolution Team GFI General Format Identifier GFI General Format Identifier GFI Ground-Fault Indicator GFI Ground-Fault Interruptor GFID General Format Identifier GFID Graphic Font ID GFLOPS Giga-Floating-Point Operations Per Second GFP Generic Functional Protocol GFP Global Functional Plane GFR Guaranteed Frame Rate GFS Generic File System GFS Grandfather-Father-Son GFSK Gaussian Frequency Shift Keying GFSM Graphical File System Manager GFT Generic Flow Transport GFT Generic Function Transport GFX Graphics GGA Groß-Gemeinschafts-Antennenanlage GGI Gateway to Gateway Interworking GGP Gateway-to-Gateway Protocol (TCP/IP-DoD) GGSN Gateway GSN GH ISO country code for Republic of Ghana GHA Greenwich Hour Angle GHz Gigahertz GI General Information GI General Instrument Corporation GI Generic Identifier GI Global Interface GI Graded-Index GI Group Identifier GI ISO country code for Gibraltar GIAC Group Intercom All Calls GIC Generic Interface Controller GIC Group Intercom GID Gateway Identifier GID General Information and Definitions GID Group ID GID Group Identification GIF Graphics Interchange Format GIFT GSF Independent Framework Testing GIGO Garbage In, Garbage Out GIH Global Information Highway GII Global Information Infrastructure GIM&M Global Information Movement and Management GIMP GNU Image Manipulation Program GIMR Global Interrupt Mode Register GIN German Intelligent Network GINA Global Intelligent Network Architecture GINS Global Information Network Services GIOP General Inter-ORB Protocol GIP Group Interface Profile GIP GSM Interworking access Profile GIPR Gigabit IP Router GIPS Billions of Instructions Per Second GIPSE Global Integrated Project Support Environment GIS AT&T Global Information Solutions (formerly NCR) GIS General Information Session GIS Generalised Information System GIS Geographic Information System GISDN Global ISDN GISP GSF Intra-Subnetwork Protocol GIST GSF Inter-Session Team GIT Generic Identifier Transport GIT Generic Information Transport GIT Global Identifier Tracker GIU Gateway Interface Unit GIX Global Internet Exchange GJT Graphic Java Toolkit GK Gatekeeper GKMP Group Key Management Protocol GKS Graphical Kernel System GL General Ledger GL Global GL Global Lines GL Ground Line GL Group Length GL ISO country code for Greenland GL100 Global 100 GLA Generic Layering Architecture GLATC Graphics and Languages Agreement group for Testing and Certification GLF Global Leadership Forum GLines Global Lines GLO General Location GLOBECOM Global Telecommunications Conference (GTC) GLONASS Global Navigation Satellite System GLS Generic Load Segment GLTC Ground Loop Test Cancel GLUT OpenGL Utility Toolkit GLVDS Ground-referenced, Low-Voltage Differential Signal GLX GL's Extension to X GM General Manager GM Generator Manager GM Group Mode GM Guaranteed Minimum GM ISO country code for Republic of the Gambia GMA Gated Mode Acquisition GMB Group Make-Busy GMBPT Group Make Busy Point GMBS GSF Meridian Business Set GMDSS Global Maritime Distress and Safety Service GMDSS Global Maritime Distress and Safety System GME Group Modulating Equipment GMEM Global Memory GMF Generalized Monitoring Facility GMF Generic Maintenance Framework GMF Global Modeling Forum GMF Graphic Monitoring Facility (SNA) GMI Generic Maintenance Interface GMI Graphical Management Interface GMII Gigabit Media Independent Interface GML Generalized Markup Language GMM Global Memory Manager GMM Global Multimedia Mobility GMM CG Global Multimedia Mobility Co-ordination Group GMO Generic Managed Object GMODTTO GSF Modifier Trace Tool GMOS Group Manager-Operator Services GMP Global Messaging Process GMPCS Global Mobile Personal Communications Services GMR Giant Magnetoresistive GMS Gate Management System GMS General Mobile System (Digital Cellular Radiocommunications) GMS Generic Multiplexer Service GMS Global Mapping Satellite GMS Global Messaging Service GMSC Gateway Mobile services Switching Centre GMSC Gateway Mobile Switching Centre (GSM term) GMSK Gaussian Minimum Shift Keying (modulation) GMSK Gaussian Minimum Shift-Keyed GMSS Global Mobile Satellite Services GMSS Global Mobile Satellite Systems GMST Generic Multiplexer Service Team GMT Greenwich Mean Time GMT Greenwich Mean Time GMT Weltzeit GMTA Great minds think alike GMTS General Mobile Telephone System GN Generic Name GN GOB Number GN Group Number GN ISO country code for Revolutionary People's Republic of Guinea GNA Globewide Network Academy GNCT Generalized No Circuit Treatment GND Ground GND Ground Start GND Group Do Not Disturb GNE Gateway Network Element GNFC Group Number Feature Control GNI Generic Internet/Subnet Interface GNIM Generic Network Information Model GNM Generic Network Model GNN Global Network Navigator GNP Graphical Network Browser GNP Gross National Product GNR Global Name Resolver GNS Global Network Service (BT) GNS Green Number Service GNSS Global aeronautical Navigation Satellite System GNT Great Northern Telegraph Co. GNU GNU's Not Unix GNW Global NetWork GOAL GSF OMs, Alarms, and Logs GOAM Government Owned And Maintained GOB Group of Blocks GOEE Generic Object Execution Environment GOES Geosynchronous Orbiting Environmental Satellite GOF Gang of Four GOLD GSM One-Chip Logical Device GOM Generic Object Model GOMMO Group OMMO GOOD GSF Object Oriented Development GOP Group of Pictures GOPS Giga (Billion) Operations Per Second GOS General Operational Sanity GOS Generic Operator Services GOS Global Operator Services GOS Grade of Service GoS Grade of Service GOSIP Government Open Systems Interconnection Profile GOSIP Government OSI Profile GOSS7 Global Operator Services Signaling #7 GOST State Committee for Standardization gov Government institutions domain GP General Product GP General Protection GP General Purpose GP Genetic Programming GP Ground Plane antenna GP Group Processor GP ISO country code for Guadeloupe GPA General Polynomial Answer mode modem GPA Generating Polynomial- Answer modem GPa GigaPascal GPA Grade Point Average GPA GSM PLMN Area GPARS Global Performance Analysis and Reporting System GPBXE GSF Public, Business and Translations Environment GPC General Polynomial Call mode modem GPC Generating Polynomial- Call modem GPCH GRPS Packet Channel GPD General Purpose Discipline GPD Generalized Probabilistic Descent GPF General Protection Fault GPF Generic Process Framework GPI Graphics Programming Interface GPIA General Purpose Interface Adapter GPIB General Purpose Interface Bus GPIC Group Primary Interexchange Carrier GPIC Per-Group Primary InterLATA Carrier GPIO General-Purpose Input/Output GPL General Public License GPL Generic Performance Language GPM Generic Peripheral Maintenance GPMC Green Paper on Mobile Communications GPNET GSF Private Networks Team GPNS Global Power Network Services GPO General Post Office GPP General-Purpose Processor GPP Global Peripheral Platform GPR General-Purpose Register GPR Ground Potential Rise GPRD Global Product Rules Development GPRS General Package Radio Service GPRS General Packet Data Radio Service GPRS General Packet Radio Service GPRS General Packet Radio System GPS General Problem Solver (AI program) GPS Generalized Processor Sharing GPS Generic Presentation Service (OSI) GPS Global Position Sensing GPS Global Positioning Satellite GPS Global Positioning System GPS Global Product Support GPSM Global Packing, Shipping, and Marshalling GPSS General Purpose Simulation System GPSS General Purpose System Simulation GPT GEC PLessey Telecommunications GPTA Goungdong Post and Telecommunication Authority GPU Graphics Processing Unit GPV Global Product Verification GPWS Ground Proximity Warning System (Avionics) GQ Gillou-Quisquater GQ ISO country code for Republic of Equatorial Guinea GQBE Graphical Query By Example GQL Graphical Query Language GQOS Guaranteed Quality of Service GR Generic Requirements GR Gigabit Router GR Graceful Close GR Graphical GR Graphical Form GR Graphical Representation/Rendition GR Graphical SDL Representation GR ISO country code for Hellenic Republic (Greece) GRA Circuit Group Reset Acknowledgment message GRA Group Reset Acknowledgement Signal GRAN Generic Radio Access Network GRASP Graphical System for Presentation GRAYS Gotta Register All Your Shareware GRC Group Recall GRD Ground GRE Generalized Regular Expression GRE Generic Routing Encapsulation grep Generalized Regular Expression Print GRF General Register File GRIB Gridded Binary GRID Global Resource Identifier GRIN Graded Index GRIN Graded Refractive INdex (Cavity Laser, Telecom) GrIP Gravis Interface Protocol GRJ Gatekeeper Reject GRM Circuit Group Supervision Message GRM General Relationship Model GRM Generic Resource Manager GRM Group Reset Message GRM DB Generic Resource Manager Database GRMP Generic Resource Manager Proxy G-ROM Graphic Read-Only Memory GROW GNU Remote Operations Web GRP Generalized Routing Procedures GRP Group GRP Group Reference Pilot GRP Program Manager Group file grpc Group Close grpo Group Open GRQ Gatekeeper Request GRQ General Request message GRS Circuit Group Reset message GRS Group Reset Signal GrVSt Gruppenvermittlungsstelle (Group Switching Centre) GS G Segment GS Gateway Switch(ing) GS General Specification GS Generic Session GS Graduate Student GS Ground Segment GS Ground Start GS Group Selector GS Group Separator GS Group Services GS Group Switch GS ISO country code for South Georgia and the South Sandwich Islands GSA General Services Administration GSA GSM System Area GSAM GSF System Architecture Model GSAT GSF System Architecture Team GSB Generic Services Base GSBT GSF Services Base Team GSC CCS Group Signaling Congestion GSC Global Standards Collaboration (group) GSC Global Surveillance Center GSC Group Switching Center GSC2 Group Speed Calling 2-Digit GSC2NL Group Speed Calling 2-Digit Number List GSCAR Global Supplier Corrective Action Request GSCP Generic Service(s) Communication Protocol GSCP Generic Services Connection Protocol GSCP Generic Service(s) Control Protocol GSD Generic Structure Diagram GSD Global Service Directory GSDE Generic Services Design Environment GSDE Global Software Development Environment GSDN Global Software Defined Network GSDT Generic Service Design Tool GSDT GSF Services Design Tool GSE General Systems Engineer GSEE Generic Services Execution Environment GSEP Generic Session End Point GSEP GSM Service Evaluation Platform GSF Generic Services Framework GSFA GSF Architecture GSFAI GSF Agent Interworking GSFAIP Generic Services Framework Agent Interworking Protocol GSFAIP_ALT GSFAIP Alerting message GSFAIP_ANM GSFAIP Answer Message GSFAIP_CCM GSFAIP Connection Control Message GSFAIP_CPG GSFAIP Call Progress message GSFAIP_EOP GSFAIP End of Outpulsing message GSFAIP_EOS GSFAIP End of Selection message GSFAIP_FAM GSFAIP Final Address Message GSFAIP_IAM GSFAIP Initial Address Message GSFAIP_RES GSFAIP Resume message GSFAIP_RLS GSFAIP Release message GSFAIP_RSI GSFAIP Reselection Indication message GSFAIP_RSR GSFAIP Reselect Request message GSFAIP_SAM GSFAIP Subsequent Address Message GSFAIP_SOS GSFAIP Start of Selection message GSFAIP_SUS GSFAIP Suspend message GSFCP GSF Call Process GSF-FM GSF Facility Maintenance GSFI GSF Implementation GSFISP GSF Intra-Subnetwork Protocol GSFMIP GSF Maintenance Interface Protocol GSFN Generic Signaling Function GSI Giga-Scale Integration GSI Giga-Scale Integration GSI Special Group on ISDN GSIMS Global Standards Information Management System GSL Global Service Logic GSLB Group Speciale (de Communications) Large Bande GSLB-PN Group Speciale (de Communications) Large Bande- Permanent Nucleus GSM General forward Set-up information Message GSM General Setup Message GSM Generic Service Model(ing) GSM Generic Source Module GSM Global System for Mobile Communications GSM Global System for Mobile Telecommunication GSM Graphic Size Modification GSM Group Special Mobile GSM Group Switch Matrix GSM Group System Mobile GSM Groupe Spécial Mobile GSM MS Group Special Mobile Mobile Station GSM MS GSM Mobile Station GSM PLMN Group Special Mobile Public Land Mobile Network GSM PLMN GSM Public Land Mobile Network GSMA Global Scheduling Multiple Access GSMBE Gas Source Molecular Beam Epitaxy GSMM Group Standards Making Management GSMP General Switch Management Protocol GSN GPRS Support Node GSO Geostationary Satellite Orbit GSO Geosynchronous Service Orbit GSOLL GSF Services OnLine Library GSP General Service Passing GSP General System Practice GSP Global Services Planning GSP Global Services Platform GSQL Gateway SQL GSS General Satellite Service GSS Generic Security Services GSS Generic Security Standard GSS Graphic Size Selection GSS Grouped Sweeping Scheme GSSAPI Generic Security Services API GSSI Group Short Subscriber Identity (TETRA) GSSM Generic Service State Machine GSSM Global Subscriber Services Modernization GSSP Global Service Switching Point GST Global Symbol Table GST Ground Start GST Group-Specific Traffic G-STB Global Simulation Testbed GSTN General Switched Telephone Network GSTP Gateway Signaling Transfer Point GSVC Global Services GSVCI Global Signaling Virtual Channel Identifier GSWCT GSF Whole Cloth Team GSWFT GSF Swact Framework Team GSZ Group Size GT Give Tokens GT Global Title(s) GT Global Trunks GT Greater Than GT ISO country code for Republic of Guatemala GTA General Terminal Adapter GTA General Terms Agreement GTA Global Title Address GTA Global Trunking Architecture GTA Gopher Tape Armor (Cable Armor against Rodents) GTA Grading Terminal Assembly GTA Guam Telephone Authority GTAC Group Trunk Access Control GTC Gain Time Constant GTC Global Telecommunication Conference GTCS Group Teleconferencing Communications System GTD GEMS Test Driver GTD-3 GTD-3 (No. 3) Electronic Automatic Exchange GTD-5 GTD-5 (No. 5) Electronic Automatic Exchange GTDI Guidelines for Trade Data Interchange (EDI) GTE General Telephone and Electronics GTE Group Translating Equipment GTEDS GTE Data Services GTEI Global TEI GTEI Group TEI GTEP General Telephone and Electronics Practice GTESC GTE Service Corporation GTGB Broup Trunk Group Busy GTK GIMP Toolkit GTL Gunning Transceiver Logic GTL+ Gunning Transceiver Logic+ gTLD Generic Top Level Domain GTMOSI General Teleprocessing Monitor for Open Systems Interconnection (OSI-SNA) GTO Gate-Turn-Off (Thyristor) GTO General Telecommunications Organization GTO Geostationary Transfer Orbit GTO Government Telecommunications Organization GTOT Generic Terminal Object Team GTOT GSF Treatment Object Team GTP General Trade Product GTP Global Test Platform GTP GPRS Tunnel Protocol GTP Group of Trail Termination Points GTP Group Termination Point GTPA General Telephone Company of Pennsylvania GTPU Gas Tube Protector Unit GTR Giant TRansistor (Power Transistor Module,Toshiba Inc.) GTR Global Tone Receiver GTRK Global Trunks GTRKS Global Trunks GTRS GSSP Technical Requirements Specification GTS Generic Test Suite (obsolete) GTSI Group TETRA Subscriber Identity GTT Global Title Translation GTV Global Title Value GTWY Gateway GU ISO country code for Guam GUBB Geographic Unit Building Block GUD Grand Universal Debugger GUF GSF Upgrade Framework Team GUI Graphical User Interface GUID Globally Unique Identifier GUIDE Graphcal User Interface for Data Engineering GUL General Use Line GULS Generic Upper Layer Security GUM Grand Unified Multicast Gup Group Update Program GUS GSBT, Utility Services, SAFT GUS Guide to the Use of Standards (SPAG) GUTS GSF Unified Translations System GVA Generalization of the Viterbi Algorithm GVAC Global VFG Access Control GVGB Global Virtual Group Busy GVNS Global Virtual Network Service GVP Group Vice President GVPN Global VPN GW Gateway GW Gateway Switch GW Glue and Wave GW ISO country code for Republic of Guinea-Bissau GWCS General Wireless Communications Service GWHIS Global-Wide Help & Information System GWM Generic Window Manager GWS Gateway Screening GWS Genesis Work Station GWSA Gateway Service Analysis GWY Gateway GXLA Generic Translation and Routing Team GXLA Global Translation GXLA GSF Translations and Routing GXPM Global XPM GXPM GSF XPM GY ISO country code for Republic of Guyana gz GNU Zip
H Half h Handle H Hashing H Header H Header File h Header File h hecto (10) H Henry H Hexadecimal H High H High h High Frequency H Horizontal h hour H Hybrid H# House Number H&J Harris & Jeffries, Inc. H/M Hotel/Motel H/O Handoff H/O Handover H/PC Hand-Held PC H/W Hardware H0 Channelized 384 kbps H0H11 Channelized 384 and 1536 kbps H1 Heading Level 1 (HTML tag) H11 Channelized 1536 kbps H12 Channelized 1920 kbps H2 Heading Level 2 (HTML tag) H3 Heading Level 3 (HTML tag) H4 Heading Level 4 (HTML tag) H5 Heading Level 5 (HTML tag) H6 Heading Level 6 (HTML tag) HA Hardware Assigned HA HDLC Adaptor HA Head of Bus A HA High Assurance HA High Availability HA Home Agent HA Home Automation HA1 HDLC Adaptor, Type 1 HAC Hearing Aid Compatibility HACA Hybrid Adaptive-Channel Allocation HACMP High Availability Cluster Multiprocessing HAD Half Amplitude Duration HADS HOBIC Administrative HADS Hotel Administration Data System HAI Hardware Accelerator Interface HAL Hard Array Logic HAL Hardware Abstraction Layer (Windows NT) HAL Hardware Abstraction Level HAL Hierarchical Applications Limited HALE High Altitude Long Endurance HALO High Altitude Long Operation HALT Highly Accelerated Life Test HAM Hold and Modify HAM Hybrid Access Method HAMT Human-Aided Machine Translation HAN Home Area Network HAN Host Access Network HAN Hybrid Assigned Nematic HANDO Handover HANFS High Availability Network File System HAP Host Access Protocol HAR CENELEC Agreement for electrical cords and cables HAR HARmonisation agreement for cables and cords HARC Houston Advanced Research Center HARM High-speed Anti-Radar Missile (US Military) HAs Hauptanschluss (Main Station/Terminal/Connection) HAS HIPPI-ATM-SONET HASAWA Health and Safety At Work Act HAsl Hauptanschlussleitung (Main Service Line) HASP Houston Automatic Spooling Program HASU Hardware Assigned, Software Unassigned HAT Hardware Address Translation HAT Hash Anchor Table HAT Home Area Toll HATS Harmonization of Advanced Telecommunication Systems conference HATS Head And Torso Simulator HAW1 Continental U.S.-Hawaii submarine cable #1 HAW2 Continental U.S.-Hawaii submarine cable #2 HAW3 Continental U.S.-Hawaii submarine cable #3 HAW4 Continental U.S.-Hawaii submarine cable #4 HAx HDLC Adaptor, Type x HAZMAT Hazardous Materials Team HB Hard Blocking HB Head Bus (=master) HB Head of Bus B HB Height-Balanced HB High Band HB Hybrid HBA Hardware Group Blocking Acknowlegment Signal HBC High Blow Capacity (Fuse) HBFG Host Behavior Functional Group HBI Horizontal Blanking Interval HBL Hue, Brightness, Luminosity HBO Home Box Office HBS Home Base Station HBT Heterojunction Bipolar Transistor HBUR Hardware Blocking/Unblocking Reception HBUS Hardware Blocking/Unblocking Sending HBUS Horizontal-Bus H-BUS Horizontal Bus HC Half Call HC Half-Connection HC Handoff Call HC Hard Copy HC Harmonic Coding HC High Capacity HC Hold Capability (Call Hold) HC Hop Count HC House Cable HCA High-Contrast Addressing HCA Hybrid Channel Allocation HCB Hardware Control Block HCB History Control Block HCCM High Performance Common Channel Signaling Module HCDS High Capacity Digital Service HCDT Hold/Conference/Transfer/Drop HCF Host Command Facility (NetView) HCI Human-Computer Interaction HCIL Human-Computer Interaction Laboratory HCL Hold Calling Line HCL Hummingbird Communications Ltd. HCMM Heat Capacity Mapping Mission HCMOS High-Density Complementary Metal-Oxide Semiconductor HCMOS High-Speed Complementary Metal-Oxide Semiconductor HCMTS High-Capacity Mobile Telecommunications System HCP Hard Copy Printer HCP Horizontal Candle Power (Optics) HCS Hard Clad Silica HCS Header Check Sequence HCS Hierarchical Cell Structures HCSD High-Speed Circuit Switched Data HCSDS High Capacity Satellite Digital Service HCSM High Performance Common Channel System Module HCSS High-Capacity Storage System HCST Haut Comite des politiques Scientifiques et Techniques HCT High-Capacity Transport HCT Home Communications Terminal HCTDS High Capacity Terrestrial Digital Service HCV High Capacity Voice HD Half Duplex HD Handover Detection HD Hard Disk HD Hard Drive HD Harmonic Distortion HD Harmonization Document (CEN) HD HeaD(er) HD Heavy Duty HD High Day HD High Definition HD High Density HD Hold HDA Head/Disk Assembly HDB High Density Binary HDB High Density Bipolar HDB High Density Bipolar code HDB History Data Block HDB Home Database HDB3 High Density Bipolar of Order 3 HDB3 High-Density Bipolar- 3 Zeros HDB3 High-Density Bi-polar 3 (line code) HDB3 High-Density Bipolar Three HDBH High Day Busy Hour HDBT High Definition Broadcast Technology HDC Device Context Handle HDC Hard-Disk Controller HDC High Definition Camera HDC High Density Complementary Metal-Oxide Semiconductor (Motorola Inc.) HDCD High-Density CD HDCT Hybrid Discrete Cosine Transform HDD Hard-Disk Drive HDDF High Definition Digital Frame HD-Divine High Definition Digital Video Narrowband Emission HDF HDSL Dual Framer HDF Hierarchical Data Format HDF Horizontal Distributing Frame HDI Hardware Design Inspection HDI Head/Disk Interference HDL Hardware Description Language HDLC Hierarchical Data Link Control HDLC High Level Data Link Control (Protocol) HDLC High-Level Data Link Control HDM Hardware Description Manual HDM Hardware Device Module HD-MAC High Definition Multiplexed Analog Components HD-MAC High Definition Multiplexed Analogue Component TV HDML Handheld Device Markup Language HDOC Hardware Document HDPE High Density PolythenE (Insulation) HDR HDSL Dual Repeater HDR Header HDR Header Label HDR High Density Recording HDR1 Data Set Header Label 1 HDR1 Header 1 HDR2 Data Set Header Label 2 HD-ROM High-Density Read-Only Memory HDS Head Set HDS Holographic Diffractive Structure HDSH High Day Service Hour HDSL High-Bit-Rate Digital Subscriber Line HDSL High-Speed Digital Subscriber Line HDSL High-Speed Digital Subscriber Loop HDSM High Density Surface Mount HDT Hawaii Daylight Time HDT Host Digital Terminal HDTP Hoofdirectie Telecommunicatie en Post (NL) HDTV High Definition Television HDU High Speed Data Unit HDV High Definition Videotape HDVS High-Definition Video System HDW Home Data Base HDX Half Duplex HDX Half DupleX operation HE Headend HE Head-End HE Header Extension HE Heat Exchanger HE/CO Head-End/Central-Office HEC Header Error Check HEC Header Error Control HEC Header Error Correction HEC Header Extension Code HECI Human Equipment Catalog Item HEE High Emitter Efficiency (Semiconductor Fabrication Process) HEHO Head-End Hop-Off HEL Hardware Emulation Layer HEL Header Extension Length HEL High Energy Laser HEM Headend Manager HEM Horizontal Editing Mode HEMP High-Altitude Electromagnetic Pulse HEMP High-level Entity Management Protocol (TCP/IP-DoD) HEMS High-level Entity Management System (TCP/IP-DoD) HEMT High Electron-Mobility Transistor HEO High Elevation Orbit HEO Highly Elliptical Orbit HEO Highly-inclined Elliptical Orbit HEOS Highly Eccentric Orbit Satellite HEP Heterogenous Element Processor HES Home Electronic Systems (IEC) HEX Hexadecimal HEXID Hexadecimal Identifier HF Hands-Free HF High Float HF High Frequency (3...30 MegaHertz) HF Human Factors HFC High Frequency Correction HFC Hybrid Fiber Coax HFDF High Frequency Distribution Frame HFP HDLC Frame Processor HFP Host-to-Front-End Protocol HFS Hierarchical File System HFS High-performance File System HFS Human Factors Society HFT HDLC Frame Transceiver HFU Handsfree Unit HFU Hands-Free Unit HG Hunt Group HG ISDN Multiline Hunt Group HGA Hardware Carrier Group Alarm HGA Hercules Graphics Adapter HGB Hardware failure oriented Group Blocking message HGB Hardware Group Blocking Signal HGC Hercules Graphics Card HGC Hercules Graphics Controller HGED High Gain Emissive Display HGHT Hunt Group Hunt Terminal HG-I ISDN Hunt Group HGL Hewlett Packard Graphics Language File HGU Hardware Group Unblocking Signal HH Handheld HH Hanging Handset HH Header Hub HH High-High HH High-High Algorithm HH Horizontal High HHI Human-Human Interaction HHO Hard Handover HHOK Ha ha only kidding HHP Handheld Portable Phone HI Handover Initiation HI Hashed Index HI High Priority HI U.S. postal code for Hawaii HIA Human Interface Architecture HIC Handset Identity Code HIC Header Integrity Check HIC Heterogeneous InterConnect HIC Highest Incoming Channel HIC Hybrid Integrated Circuit HICC Host Interface Chip with Channel Supervision HICOM High Technology Communication HIDF Horizontal side of Intermediate Distribution Frame HIDLE High Idle HIDOM High Impedance Digital Output Mode HIE Host Interface Equipment HIER Hierarchical HIF Host Interface HILDA High Level Debugging Assistant HILI HIgher Layer Interface (IEEE 802.1) HINFO Host Information HINIL HIgh-Noise-Immunity Logic HIO Halt I/O HIO Highly Inclined Orbit Hiperlan High Performance Radio Local Area Network HIPER-LAN High Performance Radio LAN HIPPI High-Performance Parallel Interface HIPPO High Speed Instruction Prefetcher and Path Organizer Hippo HIPPO functionality plus additional functionality HIS Highest Issue HIS Home Intercom Service HiS Home internet Solution HIS Hospital Information System HIT Hierarchical Incremental Testing HIT High Isolation Transformer HIU Headend Interface Unit HIU Home Database Interface Unit HIU Host Interface Unit hk Internet country code for Hong Kong HK ISO country code for Hong Kong HKCR HKEY_CLASSES_ROOT HKCU HKEY_CURRENT_USER HKLM HKEY_LOCAL_MACHINE HKZ Haupanschlusskennzeichen (German analog protocol without DDI) HL Higher Layers HL High-Low HL Hot Line HLA High Level Assembler HLC High Layer Capabilities HLC High Layer Compatibility HLC High Level Committee (ITU) HLC Higher Layer Compatibility HLCDBL1 High-Layer Compatibility Information Delivery Billing Records (Intranetwork) HLCDBL1P High-Layer Compatibility Information Delivery Billing Records (Intranetwork) for PRI HLCDBL2 High-Layer Compatibility Information Delivery Billing Records (Internetwork) HLCDBL2P High-Layer Compatibility Information Delivery Billing Records (Internetwork) for PRI HLCIE High Layer Compatibility Information Element HLCIT High Layer Compatibility Information Transfer HLD Call Hold HLD Head Load HLD High Level Design HLD High Level Document HLD Hold HLDA Hold Acknowledge HLDE High Level Design Estimate HLDR High-Level Design Review HLE Host Link Extension HLEN Header Length HLF High Layer Function(s) HLF Higher Layer Function(s) HLF High-Level Format HLF High-Level Formatting HLFD High Level Feature Design HLI High-Layer Information HLIC High Level Intent Code HLIU High Speed Link Interface Unit HLL High Level Language HLL High Level Logic HLL High Loss Loopback HLL High-Level Language HLLAPI High-Level Language API (IBM) HLLB High Loss Loopback HLM Heterogeneous LAN Management (IBM, 3COM) HLMS Heterogenous LAN Management Specification HLN Headline News HLN Hot Line (Direct Connect Line) HLP Help File HLPI High Level Protocol Interworking HLPI Higher Layer Protocol Identifier HLR Hidden-Line Removal (3-Dimensional Electronic Imaging) HLR Home Location Register (GSM term) HLR Home Location Registry HLRN Home Location Routing Number HLS Hue, Lightness, Saturation HLS Hue, Luminance, Saturation HLS Hue, Luminosity, Saturation HLSC High-Level Service Circuit HLSIB High-Level SIB HLT Halt HLT Halt (80x86 inst) HLT Head Load Time HLT Heterodyne Look-Thru HM Hotel/Motel HM Hotel/Motel Selection HM ISO country code for Heard and McDonald Islands HMA High Memory Area HMA Human-Machine Adaptation HMB Higher Middle Byte HMBN Hotel/Motel Service Selection Billing Number HMBS1 Hunt Make Busy Set 1 HMBS1D Hunt Make Busy Set 1 CMD HMBS1V Hunt Make Busy Set 1 VI HMBS2 Hunt Make Busy Set 2 HMBS2D Hunt Make Busy Set 2 CMD HMBS2V Hunt Make Busy Set 2 VI HMBS3 Hunt Make Busy Set 3 HMBS3D Hunt Make Busy Set 3 CMD HMBS3V Hunt Make Busy Set 3 VI HMBS4 Hunt Make Busy Set 4 HMBS4D Hunt Make Busy Set 4 CMD HMBS4V Hunt Make Busy Set 4 VI HMCG Signaling Link Congestion HMCS Hotel/Motel Class of Service HMD Head-Mounted Display HMDC MTP Message Discrimination HMDF Horizontal side of Main Distribution Frame HMDT MTP Message Distribution HMI Horizontal Motion Index HMI Host Micro Interface HMI Hub Management Interface HMI Human-Machine Interface HML Multiline Hunt Group H-MLP High speed Multi-Layer Protocol HMM Hidden Markov Model HMMP Hyper Media Management Protocol HMMS Hypermedia Management Schema HMOS High-Performance NMOS HMP Host Monitoring Protocol HMR Hotel/Motel Routing HMRP Hotel/Motel Register Pulsing HMRT MTP Message Routing HMS Hierarchical Master-Slave HMS Host Mediation Services HMSC Home MSC HMSH High Month Service Hour HMSO Her Majesty's Stationary Office (UK) HMTG Homogeneous Trunk Group HMUX Hybrid Multiplexer H-MUX Hybrid Multiplexer H-MVIP High-Capacity MVIP HN Hungarian Notation HN ISO country code for Republic of Honduras HNFN Home Numbering and Foreign Numbering HNL number of LSBs to be compared when operating outside Home Network HNPA Home Numbering Plan Area HNS Hughes Network Systems HNT Hunt HO Handoff HO Handover HO Hotel HOB Head of Bus HOB Hierarchical Operational Binding HOBIC Hotel Billing Information Center HOBIS Hotel Billing Information System HOC Handover Control HOC Highest Incoming Channel HOC Highest Outgoing Channel HOC Host Collector HOC Host Office Collector HoD Head of Department (ETSI) HO-DSP High Order Domain Specific Part HOF Head Of Form HOH HDSL Overhead HOL Head of the Line HOL High Order Language HOL Holiday List (Table) HOLD call HOLD (supplementary service) HOLD Hold message HOLD ACK Hold Acknowledge message HOLD REJ Hold Reject message HON Handover Number HOOD Hierarchical Object Oriented Design HOOPS Hierarchical Object-Oriented Programming System HOP Higher Order Path HOPA Higher Order Path Adaptation HOPL History of Programming Languages HOPS Host Proximity Service HOPSN Higher Order Path Sub-Network HOPT Higher Order Path Termination HOS Higher-Order Statistics HOST HOST computer HoT Home Office Technology HOT Home Office Telecommunication HoT Home Office Telephony HOT Hot Line HOT Hotel/Motel HOTH Handoff Threshold High HOTL Handoff Threshold Low HOVC Higher Order Virtual Container HP Hewlett-Packard HP High Pass (filter) HP High Priority HP Home Page HP Home Passed HP DST Hewlett Packard Distributed Smalltalk HP VUE Hewlett-Packard Visual User Environment HPA High Performance Addressing HPA High Power Amplifier HPA Higher-order Path Adaptation HPA Horizontal Position Absolute HPAD Host Packet Assembler/Disassembler HPBW Half Power Beam Width HPC Hand-held Personal Computer HPC High Performance micro-Controller HPC High Probability of Completion HPC Higher-order Path Connection HPCC High Performance Computing and Communications (US) HPCS Heterogeneous PCS HPDD High Performance Disk Driver HPDLC Hewlett-Packard (Inc.) Data Link Control HPDS Hewlett-Packard Distributed Smalltalk HPDST Hewlett-Packard Distributed Smalltalk HPF High Pass Filter HPF High Performance FORTRAN HPFR High Performance Frame Relay HPFS High Performance File System HPGL Hewlett-Packard Graphics Language HP-GL Hewlett-Packard Graphics Language HP-HIL Hewlett-Packard Human Interface Link HPIB Hewlett-Packard Interface Bus HP-IB Hewlett-Packard Interface Bus HPIN Handset Personal Identification Number HPJ Help Project file HPJ High Performance Compiler for Java HPLMN Home Public Land Mobile Network HPM High-Performance Module HPN High Performance Network HPOV Hewlett-Packard OpenView HPP Heuristic Programming Project (Application of AI) HPPA Hewlett-Packard Precision Architecture HP-PA Hewlett-Packard Precision Architecture HP-PB Hewlett-Packard Precision Bus HPPI High Performance Parallel Interface (ANSI) HPR High Performance Routing HPR Horizontal Position Relative HPS High Power Satellite HPSOS Hewlett Packard Switch Operating System HPSOS High Performance Switch Operating System HP-SOS HP-based Support Operating System HPSS High-Performance Switching System HPT Hand-held Personal Telephone HPT Higher-order Path Termination HPU Hand Portable Unit HPUX Hewlett-Packard Unix HP-UX Hewlett-Packard Unix HPV High Performance Video HPV Highest PVC HQ Headquarter HQ High Quality HR Half Rate HR Half Rate HR High Reliability HR High Resistance HR High Runner HR Hitachi Review (periodical) HR Horizontal Rule (HTML tag) HR Human Resources HR ISO country code for Hrvatska (Croatia) HRC HaRd Copy HRC Hybrid Ring Control HRC Hypothetical Reference Circuit HRC Hypothetical Reference Connection HRCDC High Runner Call Data Compression HRD Handbook of Reliability Data HRD High-Resolution Diagnostics HRD Hypothetical Reference Decoder HRDP Hypothetical Reference Digital Path HREF Hypertext Link Reference (HTML tag) HRFAX High Resolution Facsimile HRI High Resolution Imagery HRN Highest Response Ratio Next HRP Hardware Reference Platform HRSC High Runner Structure Code HRSC Hypothetical Signaling Reference Connection HRT High Rate Telemetry HRTF Head-Related Transfer Function HRX Hypothetical Reference Circuit HRX Hypothetical Reference Connection HS Half Session HS HandSets HS Hatch Style HS High Speed HSAM Hierarchical Sequential Access Method HSB Hue, Saturation, Brightness HSC Hexadecimal Sequential Code HSC Home Shopping Channel HSCD High Speed Circuit Data HSCP High Speed Card Punch HSCR Hardware Scheduler Condition Register HSCSD High Speed Circuit Switched Data HSCT High Speed Compound Terminal HSD High Speed Data HSDA High Speed Data Access HSDC High-Speed Data Card HSDL High Speed Data Link HSDM High-Speed Data Module HSDS High-Speed Data System HSDU High Speed Data Unit HSDU High Speed Dial Up HSET Headset Trunk HSG High Sierra Group HSI Hardware-Software Interface HSI High Speed Interface HSI High-layer Status Indicator HSI Hue Saturation Intensity (Electronic Imaging) HSIO High-Speed I/O HSL High Speed Link HSL High-Level Scripting Language HSL High-Speed Signaling Link HSL Hue, Saturation, and Luminosity HSLAN High-Speed LAN HSLI High-Speed Line Interface HSLN High Speed Local Network HSLR High Speed Link Route HSM Hierarchical Storage Management HSM Hierarchical Storage Manager HSM Host Switching Module HSMO High Stability Master Oscillator HSN Home Shopping Network HSN Hopping Sequence Number HSO Host Switching Office HSP High Speed Printer HSP Host Slave Present HSPTP High Speed Paper Tape Punch HSPTR High Speed Paper Tape Reader HSQR0 Host Sequence Register 0 HSQR1 Host Sequence Register 1 HSR Hardware Status Register HSR Hidden-Surface Removal (3-D Electronic Imaging) HSR High Speed Reader HSR Home Service Region HSR Horizontal Scan Rate HSRP Hot Standby Router Protocol HSRR0 Host Service Request Register 0 HSRR1 Host Service Request Register 1 HSS High Speed Switch HSSC High Speed Signalling Capability HSSDS High Speed Switched Digital Service HSSI High Speed Serial Interface HSSL High-Speed Signaling Link HST Hawaii Standard Time HST High-Speed Technology HSV Hue, Saturation, Value HT Halt Typing HT High Tension HT High Tone HT Hilly Terrain HT Holding Time HT Home Terminal HT Horizontal Tab HT Horizontal Tabulation HT Hyper Terminal file HT ISO country code for Republic of Haiti HTA Hunting Allowed HTA HyperText Application HTABL Hunt Terminal Aggregate Busy Limit HTC HDLC Transceiver Cell HTC Highest Two-Way Channel HTCMDBL Hunt Terminal Busy Limit for Circuit Mode Data Calls HTCPCP Hyper Text Coffee Pot Control Protocol HTD Hardware Technology Division HTD Hunting Denied HTDS HDLC Transparent Data Service HTF Hub Terminal Facility HTFS High Throughput File System HTGB High Temperature Gate-Bias (Power Semiconductor Stress) HTJ Horizontal Tab with Justification HTL High Threshold Logic HTL Hot Line HTL Hotel Call HTML HyperText Mark-up Language HTR Hard-to-Reach HTR Hierarchical Trunk Reservation HTRB High Temperature Reverse-Bias HTRF Hard-to-Reach Flag HTRLD Handoff Threshold HTRP Hard-to-Reach Peg HTS High-Temperature Superconductive HTS High-Temperature Superconductivity HTS Home Team Sports HTS Horizontal Tab Set HTSL HochTemperatur SupraLeiter HTTG Heterogeneous Trunk Group HTTP Hypertext Transfer Protocol HTTPD HTTP Daemon HTTP-NG HTTP-Next Generation HTU HDSL Terminal Unit HTU-C HDSL Terminal Unit- Central Office HTU-R HDSL Terminal Unit- Remote Site HTVBL Hunt Terminal Busy Limit for Voice Calls HU Hardware Unassigned HU High Usage HU Home Unit HU ISO country code for Hungarian People's Republic (Hungary) HUA Hardware Group Unblocking Acknowledgment Signal HUD Heads Up Display HUG High-Usage Group HUI Help User Interface HUNT Hunting HUNTYP Hunting Type HUT High Usage Threshold HUT High Usage trunk HUTE High Usage Threshold Exceeded HV High Voltage HVAC Heating, Ventilation and Air Conditioning HVC High-Order Virtual Container HVC Hue, Value, and Chroma HVEPIC High Voltage Enhanced Performance Implanted CMOS (IC Process) HVIC High Voltage Integrated Circuit HVL Half-Value Layer HVP Hierarchical Virtual Partitioning HVP High-Voltage Protection HVP Horizontal and Vertical Position HVS Hospitality Voice Services HVS Human Visual Systems HVSD High Voltage Shutdown HVSt Hauptvermittlungsstelle (Tandem Level Switching Exchange) HVt Hauptverteiler (Main Distribution Frame) HW Half Word HW Halfword HW Hardware HW High and Wet HwAns Announcement HWC Hardware Controller HWD Height, Width, Depth HWDP Hardware Development Process HWFIT Hardware Fault Insertion Test HWLR Howler message HWND Handle to a Window HWR Heavy Water Reactor HX Halt Execution HXS Home eXtended Service network HyCoS Hypermedia Communication Server Hz Hertz
I Current I Image I Indication I Information I Information field I In-Phase i int I Intensity I Interactive Framework I Interactor I Interconnectivity I Interface I Intermediate Frame I Intra Picture (frame) I Intraframe i Italic I Italics (HTML tag) I&I Interworking and Interoperability I/A Inquiry/Acknowledgement I/C Incoming I/E Implicit/Explicit I/F Interface I/G Individual/Group I/O Input/Output I/OC Input/Output Channel I/S Information Systems I/S Information/Supervisory Type Packet I/S In-Service I/T Information Technology I18N Internationalization I2 Interface Paging Area Controller-BS I2 Internet2 I2O Intelligent I/O I2T Intelligent Interface Technology I3 Interface Paging Network Controller-Paging Area Controller I4 Interface Paging Network Controller-Paging Network Controller IA Aggregate Only for Calls Incoming to BBG IA Implementation Agreement IA Incoming Access IA Ineffective Attempt IA Initial Address IA Integration Alpha IA Integration Alpha Tested IA Intel Architecture IA Intelligent Agent Ia Interface point a IA International Alphabet IA Internet Assistant IA Intrabay IA U.S. postal code for Iowa IA5 International Alphabet No. 5 IA-64 Intel Architecture-64 IAA IAM Acknowledgement message IAA Ineffective Attempt Analysis IAAB Inter-American Association of Broadcasting IAAC Inter-Access Agent Communication IAB Initial Address Buffer IAB Internet Activities Board IAB Internet Architecture Board IABS Integrated Access Billing System IAC Industry Advisory Committee IAC Information Access Corporation IAC Initial Alignment Control IAC Integrated Access Controller IAC Interapplication Communication IAC International Access Code IAC Internet Association of the Carolinas IAC Interpret As Command IAC Intracalling IAC ISDN Access Controller I-ACB ISDN Automatic Callback I-ACG Incoming Automatic Code Gap IACP Initial Address Confirmation Pointer I-ACR ISDN Anonymous Call Rejection IACS Integrated Access and Control System IACS Integrated Access and Cross-Connect System IAD Integrated Alarm Display IAD MDII: Incomplete Address Detected IAE Integrated Access Equipment IAF Intelligent Access Function IAF Intelligent Alarm Filtering IAF Interleaf ASCII Format IAF Internet Address Finder IAG Instruction Address Generation IAGC Instantaneous Automatic Gain Control IAHC International Ad Hoc Committee IAI Initial Address Information IAI Initial Address Message with Additional Information IAL Intel Architecture Lab IAL International Algebraic Language IALA International Association of Lighthouse Authorities IAM Initial Address Message IAM Integrated Access Module IAML Intraoffice Matching Loss IAN Integrated Analog Network IAN Internetworking among ATM Networks IANA Internet Assigned Numbers Authority IANAL I am not a lawyer IANL Immediate Action Noise Limit IAO Intraoffice IAO Intraoffice Optical Interface IAOG International ADMD Operators Group IAP Industrial Applications Programming IAP Initial Acquisition Phase IAP Intercept Access Point IAP Internet Access Provider IAR IAM Reject message IAR Incoming Access Restrictions I-AR ISDN Automatic Recall IARU International Amateur Radio Union Ias Intelligent Agents IAS Internet Authentication Server IAS Internet Authentication Services IAS Intraswitching IASG Internet Address Subgroup IASG Internet Address Summary Group IASP Initial Address Service Pointer IASP Interactive Automated Split-Referral IAT Information Access Technology IAT Integrated Access Terminal IAT ISDN Architecture Team IAT1 Interannouncement Timer 1 IAT2 Interannouncement Timer 2 IAT3 Interannouncement Timer 3 IATA International Air Transport Association IATMT1 Interannouncement Treatment 1 IATMT2 Interannouncement Treatment 2 IATMT3 Interannouncement Treatment 3 IATMT4 Interannouncement Treatment 4 IAV Integrated Access Vehicle IAV Intelligent Access Vehicle I-AWC Intelligent Area Wide Centrex IAYF Information At Your Fingertips IB In-Band IB Inband Signaling IB Incoming Busy IB Information Brokerage IB Input Buffer Ib interface point b IBA Inband Alerting IBA Independent Broadcasting Authority IBAC In-Band Adjacent Channel IBAS Integrated Broadband Access System IBAT Instruction BAT IBBA Intelligent Building Business Alliance IBC Integrated Broadband Communications IBC International Broadcasting Convention IBC ISDN Burst Transceiver Circuit IBCN Integrated Broadband Communication Network IBCS Integrated Business Communication Systems iBCS Intel Binary Compatible Standard IB-DCA Interference-Based Dynamic Channel Allocation IBDN Individual Billing Directory Number IBDN Integrated Building Distribution Network ibe Immediate Block Errors IBERT Integrated Bit Error Rate Test IBERT Integrated Bit Error Rate Tester IBERT Integrated Bit Error Rate Testing IBEW International Brotherhood of Electrical Workers IBEX Input, Block, Extra IBG Interblock Gap IBGP Internal BGP IBI International Broadcasting Institute IBL Individual Business Line IBL Initial Boot Loader IBM International Business Machines IBMCS IBM Cabling System IBMJRD IBM Journal of Research and Development (periodical) IBML Interbay Message Link IBMS Input, Block, Missing IBMSJ IBM Systems Journal (periodical) IBN Institut Belge de Normalisation (B) IBN Integrated Broadband Network IBN Integrated Business Network IBN Isolated Bonding Network IBN7 Integrated Business Network CCS7 IBNAC IBN Attendant Console IBNC Input, Block, Not Consistent IBNS Integrated Business Network Services IBNT2 Integrated Business Network Two-Way Trunk Group IBNTI Integrated Business Network Incoming Trunk Group IBNTO Integrated Business Network Outgoing Trunk Group IBOC In-Band On Channel IBP Incremental Bar Printer IBP Interupted Bernoulli Process IBP Itty-Bitty Processor IBR Initial Business Review IBRC In-Band Reversed Channel IBS Integrated Business Services IBS Intelligent Base Station IBS INTELSAT Business Service IBSG Internetwork Broadcast Sub-Group IBSS Independent Basic Service Set IBT Illinois Bell Telephone IBT Intrinsic Burst Tolerance IBTM Interactive Billing Transaction Manager IBTN Integrated Broadband Telecom Network (ISDN) IBTO International Broadcasting and Television Organization IBUFG Internetwork Broadcast/Unknown Functional Group IBUS Intelligent Bus I-BUS Intelligent Broadcast/Unknown Server IBWM Intelligent Bandwidth Management IBWM Intelligent Bandwidth Manager IC In Charge IC Include Call (TETRA) IC Incoming IC Incoming Call IC Independent Certification IC Individual Contributor IC Information Channel IC Input Context IC Input Controller IC Installable Command IC Instruction Counter IC Instruction Fetch Cycle IC Integrated Circuit IC Integrated Controller IC Integration Complete IC Intelligent Copier IC Intercept IC Interconnect IC Interexchange Carrier IC Interface Control IC Interference Cancellation IC InterLATA Carrier IC Interlock Code IC International Channel IC1 Interface Configuration Phase 1 IC2 Interface Configuration Phase 2 ICA Independent Computing Architecture ICA Information Content Architecture ICA Inter Component Assessment ICA Intercom Appearance ICA International Communications Association ICAM Integrated Computer-Aided Manufacturing ICAMA International Centralized Automatic Message Accounting ICAN Individual Circuit Analysis ICAN Integrated Customer Advanced Networking I-CAN Integrated-Customer Advanced Networking I-CAN ISDN-Customer Advanced Networking ICAO International Civil Aviation Organization ICAPI Internet Connection API ICARUS Integrated Circuit Artwork Utility System ICAS Interconnection and Accounting Separation ICB Incoming Call Barring ICB Incoming Calls Barred ICB Individual Case Basis ICB Integrated Channel Bank ICB Integrated Chernoff Bound ICB Integrated Collector Bus ICBM InterContinental Ballistic Missile (Military) ICBR Intracompany Business Rules ICC Illinois Commerce Commission ICC Incremental Corrective Content ICC Independent Common Carrier ICC Inspection Coordination Committee (IEC) ICC Integrated Circuit Card ICC Integrated Communication Controller ICC International Chamber of Commerce ICC International Color Consortium ICC International Communications Conference ICC International Computation Center (UNESCO) ICC International Conference on Communications ICC International Control Center ICC Internodal Communications Controller ICC ISDN Communications Controller ICCB Internet Configuration Control Board ICCB Internet Control and Configuration Board ICCC Inter-Client Communications Conventions ICCC International Conference on Computer Comunications ICCCM Inter-Client Communications Conventions Manual ICCF Industry Carriers Compatibility Forum ICCM Incoming Call Center Management ICCP Informations Computer and Communications Policies (OECD) ICCS Incremental CCS ICCS International Conference on Communications Systems ICCT International Conference on Communication Technology ICCV International Credit Card Validation ICD InterLATA Carrier Domestic ICD International Code Designator I-CD ISDN Call Deflection ICDA Integrated Cached Disk Array I-CDB ISDN Call Deflection for Basic Rate Interfaces ICDC InterLATA Carrier Denial Check ICDCS International Conference on Distributed Computing Systems ICDIAL Interexchange Carrier Dialing ICDL Intermediate Circuit Description Language ICDR IC Denial Check Response ICDR Inward Call Detail Recording ICE In-Circuit Emulation ICE In-Circuit Emulator ICE Integrated Capacity Expansion ICE Integrated Communications Environment (AUXCO) ICE Integrated Cryptographic Engine ICE Interference Canceling Equalizer ICE ISDN Capacity Enhancement ICECAN Iceland-Canada submarine cable ICES International Conference on Electronic Switching ICF Information Conversion Function ICF Intelligent Control Function ICF Isochronous Convergence Function I-CF ISDN Call Forwarding I-CFB ISDN Call Forwarding Busy I-CFBIO ISDN Call Forwarding Interface Busy Incoming Only I-CFDA ISDN Call Forwarding Don't Answer I-CFDAIO ISDN Call Forwarding Don't Answer Incoming Only ICFG IASG Coordination Function Group I-CFIB ISDN Call Forwarding Interface Busy I-CFIBIO ISDN Call Forwarding Interface Busy Incoming Only I-CFIG ISDN Call Forwarding Intragroup Only I-CFIO ISDN Call Forwarding Incoming Only I-CFPF ISDN Call Forwarding Over Private Facilities I-CFV ISDN Call Forwarding Variable I-CFVCG ISDN Call Forwarding Variable for Customer Groups ICG Intercom Group ICG Intercom Groups ICG Inter-sector Coordination Group ICG Intersectoral Coordination Group ICH Insert Character(s) ICH International Call Handling ICI Image Component Information ICI Incoming Call Identification ICI Incoming Call Identifier ICI Incoming Call Indication ICI Incoming Call Indicator ICI Ingress Context Identifier ICI Inter-Carrier Interface ICI Interexchange Carrier Interface ICI Interface Control Information ICI InterLATA Carrier International ICI Intermedia Communications of Florida Inc. I-CIDS ISDN Calling Identity Delivery and Suppression ICIP Intercarrier Interface Protocol ICL Incoming Callers List ICL Incoming Line ICL Incremental Class Loading ICL Inserted Connection Loss ICL International Computer Limited ICL Inter-union Commission on the Lithosphere ICLATA Intra-LATA Carrier Selection ICLID Incoming Calling Line Identification ICLT Integrated Circuit Laser Testing ICM IEEE Communications Magazine (periodical) ICM Image Color Matching ICM In-Call Modification ICM Incoming Call Memory ICM Integrated Call Management ICM Integrated Computer Module ICM Integrated Node Maintenance ICM Intelligent Call Management ICM Intercom ICM Interface Control Model ICM Interface-Control-Model ICM Inward Call Management ICMCS International Conference on Multimedia Computing and Systems ICMD Instruction MMU/Cache/TIC Command Register ICMO Incoming Message Overload ICMP Internet Control Message Protocol ICMPv6 Internet Control Message Protocol for IPv6 ICMR Input Common Mode Rejection ICMS Integrated Circuit and Management Switch ICN Idle Channel Noise ICn Integrated Communications Network ICN Integrated Community Networks ICN Intercellular Node ICN Interconnecting CCS Network ICN Interconnecting Network ICN Interconnection Network ICN International CUG Number I-CNAB ISDN Calling Name Delivery Blocking I-CNAM ISDN Calling Name Delivery ICNC Input, Command, Not Consistent I-CNIS ISDN Calling Number Identification Services I-CNIS ISDN Calling Number Information Services IC-NNI Inter Carrier Network Node Interface ICNQ InterLATA Call Name Query ICNV Input, Command, Not Valid ICO Current Controlled Oscillator ICO Icon ICO Icon File ICO Independent Company ICO Instant Change Order ICO Intermediate Circular Orbit ICOC Interchangeable Central Office Code ICODE Identification Code ICOM cordless fixed part InterCOM capability ICOM Intercom ICOMP Intel Comparative Microprocessor Performance ICONE Index COmparativ des Normes nationales en Europe ICOT ISDN Conformance Testing ICP IMA Control Protocol ICP In-Circuit Programming ICP Independent Certification Process ICP Independent Content Provider ICP Initial Connection Protocol (ARPANET) ICP Installation Change Procedure ICP Instituto das Comunicacoess de Portugal (P) ICP Integrated Cellular Peripheral ICP Integrated Circuit Piezoelectric (Accelerometers) ICP Intelligent Cellular Peripheral ICP Interexchange Carrier Preselection ICP Internet Cache Protocol ICP Internet Control Pack ICP Internet Control Protocol I-CP ISDN Call Pickup ICPCA International Common Peripheral Controller Array ICPCE International CPCE ICPM Incidental Carrier Phase Modulation ICPTO Intercept Treatment for Origination ICPTT Intercept Treatment for Termination I-CPU ISDN Call Pickup ICR Incremental Composition and Reduction ICR Initial Cell Rate ICR Intelligent Character Recognition ICR International Call Recording ICR Internet Call Routing ICRC ILM Central Resource Controller ICRD International Call Redirection or Deflection ICRD Internetwork Call Redirection or Deflection ICRDP Internetwork Call Redirection and Deflection Prevention ICRL Individual CRL ICRM Integrated Cell-site Remote Multiplexer ICRM Integrated Cellular Remote Module I-CROR ISDN Call Redirection DTE Out of Order ICS ILM Connection Service ICS Implementation Conformance Statement ICS Incoming Call Screening ICS Installation Certification System ICS Integrated Client Setup ICS Integrated Communications System ICS Integrated Computer Solutions ICS Intelligent Cell Site ICS Intelligent Communications Services ICS International Chamber of Shipping ICS Internet Chess Server ICS Inward Call Screening ICS ISN Cabling Structure ICSA International Computer Security Association ICSAPI Internet Connection Services API ICSC Inactive Call Service Component ICSC Interexchange Customer Service Center ICSC Interim Communications Satellite Committee ICSI International Charged Subscriber Identity ICSR IntelliLight Custom SONET Ring ICSS IBM Continuous Speech Series ICSS International Computer Science Series (Addison-Wesley) ICSS Internet Connection Secure Server ICST Institute for Computer Science and Technology (NIST) ICST ISDN Customer Solutions Team ICSTIS Independent Committee for the Supervision of Standards of Telephone Information Services ICSTTN Conference Publication No. 52 of IEE Conference on Switching Techniques for Telecommunications Networks (London, 1969) ICSU International Council of Scientific Unions ICSW Inter-CAM Switch ICT In-Circuit Test ICT Incoming Trunk ICT Information and Communications Technologies (EU 4th Framework Programme) ICT International Call Transfer ICTL Instruction MMU/Cache/TIC Control Register ICTS Integrity Check Traffic Simulator ICU Increment Change Unit ICU ISA Configuration Utility ICUG International Closed User Group ICUG International Closed User Group ICUP Individual Circuit Usage and Peg Count ICUPC International Conference on Universal Personal Communications ICW Interrupted Carrier wave ICW Interrupted Continuous Wave ICXPT Incoming Crosspoint ID Identification ID Identifier ID Identity ID IDentity code (generic name for PID, LID) ID IDentity element ID Immediate Dial ID Inside Diameter ID Instruction Decoding and Operand Fetching ID Intercom Dialing ID Interface Data ID Interface Design ID Interfaces Defined ID Interfaces Designed ID Internet Draft ID ISO country code for Republic of Indonesia ID Protocol Identifier ID Task Identification ID U.S. postal code for Idaho I-D Internet Draft IDA Integrated Digital Access IDA Interchange of Data Between Administrations I-DAL ISDN Distinctive Alerting IDAPI Independent Database Application Programming Interface IDAPI Integrated Database Application Programming Interface IDAS Intercept Data Administration System IDB Bitmap ID IDC Cursor ID IDC Incoming Digit Conversion IDC Insulation Displacement Connector IDC Integrated system digital network Data Controller IDC International Data Corporation IDC International Digital Communications IDC Internet Database Connector IDC ISDN Drawer Controller IDCC Integrated Digital Cross Connect IDCC International Data Communications Center IDCC International Data Coordination Centres IDCCC Integrated Decoupling-Capacitor Chip Carrier (VLSI Packaging) IDCI Interim Defined Central Office Interface IDCT Inverse Discrete Cosine Transform IDCU Integrated Digital Carrier Unit IDD Integrated Design and Delivery IDD Interface Design Document IDD International Direct Dialing IDDD International Direct Distance Dialed IDDD International Direct Distance Dialing IDDE Integrated Development and Debugging Environment IDDF Intermediate Digital Distribution Frame IDDS International Digital Data Service IDDU Interactive Data Definition Utility IDE End of Identification IDE Integrated Development Environment IDE Integrated Drive Electronics IDE Project File IDEA Information Delivery Electronic Access IDEA Interactive Digital Electronic Appliance IDEA International Data Encryption Algorithm IDEA International Data Exchange Association IDEC ISDN D-Channel Exchange Controller iDEN Integrated Dispatch Enhanced Network IDES Interactive Data Entry System IDF Identifier of Data Field IDF Intermediate Distributing Frame IDF Intermediate Distribution Frame IDF Isolation Detection Function IDF MIDI Instrument Definition file IDFT Inverse Discrete Fourier Transform IDG International Data Group IDGB IDG Books IDI Icon ID IDI Initial Domain Identifier IDIS Interbourse Data Information System IDL Idle IDL Interactive Distance Learning IDL Interchip Digital Link IDL Inter-Digital Link IDL Interface Definition Language IDL Interface Description Language IDLC Integrated Digital Loop Carrier IDLERCV Idle Receive IDLETRMT Idle Transmit IDLT Idle Time IDM Indication Deferral Mechanism IDM Information Dependency Manager IDM Initialization Dependency Manager IDM Integrated Design Methodology (IC Design) IDM Integrated Device Maintenance IDMA Independent Direct Memory Access IDMR Inter-Domain Multicast Routing IDN Integrated Digital Network IDN Integriertes Datennetz (Integrated Data Network) IDN International Data Number IDNC Input, Data, Not Consistent IDND International Do Not Disturb IDNV Input, Data, Not Valid IDNX Integrated Digital Network eXchange IDO Interface Definition Object IDOC Internal Dynamic Overload Control IDP Industrial/Integrated Data Processing IDP Initial Detection Point IDP Initial Domain Part IDP Initial Domain part internet datagram Protocol IDP Inividualized Dialing Plan IDP Integrated Data Processing IDP Integrated Detector-Preamplifier (Opto-Electronics) IDP Intercom Dialing Plan IDP Interdigit Pause IDP Internetwork Datagram Protocol (XNS) IDP Internetwork Diagram Protocol IDP Iterative Development Process IDPL Identifier Pools I-DPN ISDN Directed Call Pickup- Nonbarge-In IDPR Inter-Domain Policy Routing ID-PROM Identity PROM I-DPU ISDN Directed Call Pickup- Barge-In IDR ID Register IDR Identification Request message IDR Integrated Digital Radio IDR Intelligent Disaster Recovery IDR Intermediate Data Rate IDRG Input, Data, Range Error IDRP Inter-Domain Routing Protocol IDS Intruder Detection System IDS ISI Document Solutions IDSE International Data Switching Exchange IDSL ISDN Digital Subscriber Line IDSL ISDN Digital Subscriber Loop IDSM Intergrated Distributed Systems Management IDSS Integrated Document Support System IDST Information et Documentation Scientifique et Technique IDST Integrated Digital Services Terminal IDT Incremental Delivery Technology IDT Integrated Delivery Team IDT Integrated Design and Test IDT Integrated Device Technology IDT Integrated Digital Terminal IDT Interactive Design Tool IDT Interactive Development Tool IDT Interdigit Timing IDT Interdigital Time IDT Interface Development Tool IDT Interrupt Descriptor Table IDTC International Digital Trunk Controller IDTE International Digital Trunk Equipment IDTR Interrupt Descriptor Table Register IDTV Improved Definition TeleVision (HDTV) IDTV Interactive Digital Television IDU Interface Data Unit idv Individuals domain IE Information Element IE Information Extraction ie Internet country code for Ireland IE Internet Explorer IE ISO country code for Ireland IE3 Internet Explorer Version 3.0 IE4 Internet Explorer Version 4.0 IEAE Input, Entity Already Exists IEAK Internet Explorer Administration Kit IEC Integrated Echo Canceller IEC Interexchange Carrier IEC International Electrotechnical Commission IEC ISDN Echo Cancellation Circuit IECEE IEC system for conformity testing to standards for safety of Electrical Equipment IECFB Internal/External Call Forwarding Busy IECFD Internal/External Call Forwarding Do Not Answer IECQ International Electrotechnical Commission for Quality IEC-Q Quad ISDN Echo Cancellation Circuit IED Interactive Electronic Display IEDB Integrated Engineering Database IEDM International Electron Devices Meeting IEE Institute of Electrical Engineers (UK) IEEE Institute of Electrical and Electronics Engineers (USA) IEEIE Institution of Electronics and Electrical Incorporated Engineers (UK) IEI Information Element Identifier IEI Information Engineering Institute IEI Internal Event Information IEI Interrupt Enable In IEICE Institute of Electronics, Information, and Communications Engineers IEM Information Exchange Management IEM Integrated Event Management IEM Integrated Event Manager IEM Interface Electronic Module IEM Interference Electron Microscope IEN Internet Engineering Note IEN Internet Experiment Notes IENE Input, Entity Not Exists IEO Interrupt Enable Out IEPG Internet Engineering and Planning Group IEPM Interface Engine Problem Manager IEPP Interface Engine Pre-Parser IERE Institute of Electronics and Radio Engineers IES Incoming Echo Suppressor IES Information Exchange Services department (ETSI) IES Information Exchange System IESG Internet Engineering Steering Group IETE Institution of Electronic and Telecommunication Engineers IETF Internet Engineering Task Force IETM Interactive Electronic Technical Manual I-ETS Interim European Telecommunications Standard (ETSI) IEU Instruction Execution Unit IEV International Electrotechnical Vocabulary IEW Intelligent Electronic Warfare IEX Information European Exchange If feeding current IF Identification Failure IF Induction Free IF Information Flow IF Instruction Fetching IF Interface IF Intermediate Frequency IF Interrupt-Enable Flag IF/RF Intermediate Frequency/Radio Frequency IFA Interface Adaptor IFA ISDN Facility Agent IFAC International Federation for Automatic Control IFAM Initial and Final Address Message IFAM Initial-Final Address Message IFAM ISDN Feature Availability Matrix IFAN International Federation for the Application of Norms IFAST International Forum on AMPS Standards Technology IFAX International Facsimile Service IFB Invitation For Bid IFC InterFace Clear (IEEE-488 Bus Signal) IFC Internet Foundation Classes IFD Image File Directory IFD Incremental Fix Delivery IFEC IEEE Fall Electronics Conference i-FED Intelligent Field Emission Display IFEI International Fixed Equipment Identity IFF Identification Friend/Foe (Military Avionics) iff If and Only If IFF Interchange File Format IFFM Incoming First Failure to Match IFFT Inverse Fast Fourier Transform IFG Inter-Fabric Group IFG Interframe Gap IFH Image File Header IFI Invoke from Idle IFid Interface Identification I-FIL Interpolation FILter IFIP International Federation for Information Processing IFIPS International Federation of Information Processing Societies IFL Integrated Fuse Logic (Philips/Signetics Inc.) IFL InterFacility Link IFL International Frequency List IFM Incoming Formatter IFM Interface Machine IFMP Ipsilon Flow Management Protocol IFN Indirect Function Table IFOV Instantaneous Field Of View IFP Instruction Fetch Pipeline IFP International Free Phone IFP Interrupted Fluid Process IFPG International Frequency Planning Group IFPH Internetwork Freephone IFPI International Federation of the Phonographic Industry IFRB International Frequency Registration Board (ITU) IFS Information File Separator IFS Installable File System IFS Interframe Space IFS Interframe Spacing IFS Internal File Service IFS International Freephone Service IFS Iterated Function System IFSI International Fixed System Identity IFSM Information Systems Management IFT Incoming File Transfer IFW Information FrameWork IFW Inverted Frame Word IFX I/O and File Executive IG Initial Gap IG Inside BBG IG Interpolation Gain IGA International General Aviation IGBT Insulated Gate Bipolar Transistor (Power Semiconductors) IGC Incremental Garbage Collector IGD Incremental GSF Delivery IGES Initial Graphics Exchange Spec (NIST standard) IGES Initial Graphics Exchange Specification IGES Initial Graphics Exchange Standards IGFET Insulated Gate Field-Effect Transistor IGFET Insulated Gate Field-Effect Transistor IGMP Internet Group Management Potocol IGN IBM Global Network IGO IGES/PDES Organization IGO Impulse Governed Oscillator IGP Interior Gateway Protocol IGRP Interior Gateway Routing Protocol IGS Information Group Separator IGS Interactive Graphic System IGS Internet Go Server IGT Inspettorato Generale delle Telecomunicazioni (I) IGT Insulated Gate Transistor IGW International Gateway IH Intermediate Hub IH Interrupt Handler IHB Inhibit Make Busy IHC ISDN Hold Capability I-HC ISDN Hold Capability IHD Integrated Help Desk IHECD Incoming Half Echo Control Device IHL Internet Header Length IHO Intersystem Handoff IHS Information Handling Services IHUT Incremental High Usage Threshold IHV Independent Hardware Vendor II ANI information digits pair IIA Information Industry Association (USA) IIA Information Interchange Architecture IIASA International Institute for Applied Systems Analysis IIB Internal Information Base IIC IEEE Internet Computing IIC Integrated Interface Circuit IIC International Institute of Communications IICE Internet Interactive Collaboration Environment iid Independently Identically Distributed IID Interface Identifier IIF Interoperability Functionality IIH IS-IS Hello III Institute for Information Industry IIL Integrated Injection Logic IILC Information Industry Liaison Committee IIM Information Interchange Model IIMC ISO Internet Management Coexistence IIME Intranetwork SMDS Mapping Entity IIMUL Integer Immediate Multiply (80x86 inst) IIOP Internet Inter-ORB Protocol IIR Infinite Impulse Response (filter) IIREC Infinite Impulse Response Echo Canceller IIRS Institute for Industrial Research and Standards IIS Indian Institute of Science IIS Internet Information Server IISP Information Infrastructure Standards Panel (ANSI) IISP Input, Invalid Syntax or Punctuation IISP Interim Inter-Switch Protocol IISP Interim Inter-Switch Signaling Protocol IIT Incoming Intercept Trunk IITA Information Infrastructure and Technology Act IITA Input, Invalid TID IITC Internetwork Interoperability Testing Council IITF Information Infrastructure Task Force IITF Information Infrastructure Task Force+B2843 (US) IITP Internetwork-Interoperability Test Plan IIW ISDN Implementors' Workshop IJAP International Japan IJG Independent JPEG Group IJSAC IEEE Journal on Selected Areas in Communications (periodical) IK Interchange Key IK Inverse Kinematics IKBS Intelligent Knowledge-Based System IKE Intermediate System Key Exchange IKM InterKanalModulation IKMP Internet Key Management Protocol IKP Internet Keyed Payment IKTS Intergrated Key Telephone System IKZ Impulskennzeichen (Impulse Signalling System) IKZ50 Impulskennzeichen 50 (Impulse Signalling System No. 50) IL IdLe IL Information Letter IL Insert Line IL Insertion Loss IL International Line IL Interswitch Link IL ISO country code for State of Israel IL U.S. postal code for Illinois il8n Internationalization ILA Iterative Logic Array ILAC International Laboratory Accreditation Conference ILAN Industrial Local Area Network ILAS Intelligent Loop Administration System ILB Inhibit Line Busy ILBM IFF Interleaved Bitmap ILC Inter-Layer Controller ILC ISDN Link Controller ILCM International Line Concentrating Module ILD Implementation Level Design ILD Individual Line Downtime ILD Injection Laser Diode ILD Integrated Large Deviation ILD Interface Level Design ILD ISDN Line Drawer ILDR ISDN Line Drawer for Remotes ILDS Interactive Laser-Disk System ILE In-Line Encryptor ILE Integrated Language Environment ILEC Incumbent Local Exchange Carrier ILF Infra Low Frequency ILGC International Line Group Controller ILGE International Line Group Equipment ILK Incremental Link Status file ILLC Internal Logical Link Connection ILLP Inter Link to Link Protocol ILM Incoming Label Map ILM Industrial Light & Magic ILM Integrated Link Maintenance ILMI Integrated Local Management Interface ILMI Interim Local Management Interface ILMT Insertion Loss Measurement Test ILP Industrial Liaison Program ILP Instruction-Level Parallelism ILP Integer Linear Program ILP IntraLATA Presubscription ILPS Information and Learning, Products and Services ILPT7 CCS7 Integrated Link Protocol Test ILR Independant Local Radio ILR International Line Restriction ILR International Line Restrictions ILR Internetworking Location Register ILR Issues List Report ILS Individual Line Service ILS Input Limiting Scheme ILS Instrument Landing System (Avionics) ILS Inter-LAN Switching ILSP Integrated Listing Services Platform ILSP Interactive Listing Services Peripheral ILTC International Line Trunk Controller ILTMS International Leased Telegraph Message Switching ILU Inter-Language Unification ILU Intermediate Line Unit IM Immediate IM Immediate (Dial) IM Implementation IM In call Modification (supplementary service) IM Increment Manager IM Information Model IM Initial MAC sublayer IM Initialization Mode (HDLC) IM Input Message IM Input Message Manual IM Input Method IM Installation Manual IM Integrated Maintenance IM Intensity Modulated IM Intensity Modulation IM Interface Module IM Intermodulation IM Inter-Telex SFU Messages IM Inverse Multiplexer IM&M Information Management and Movement IM&M Information Movement and Management IMA Ineffective Machine Attempt IMA Input Message Acknowledgement IMA Integrity Management Agent IMA Interactive Multimedia Association IMA International MIDI Association IMA Inverse Multiplexed ATM IMA Inverse Multiplexing ATM IMA Inverse Mux ATM IMAC Isochronous MAC I-MAC Isochronous MAC IMap Intelligent Mapping Accounting and Provisioning IMAP Internet Mail Access Protocol IMAP Internet Message Access Protocol IMAP4 Internet Mail Access Protocol, Version 4.0 IMAP4 Internet Message Access Protocol, Version 4 IMAS Internetwork Mass Calling IMASS Integrated Multiple Access Switched Services IMASS Intelligent Multiple Access Spectrum Sharing IMB Incoming Message Buffer IMB Inhibit Make Busy IMB Input Message Buffer IMBE Improved Multiband Excitation IMC Integrated Measurement Card IMC Inter-Mate Communication IMC Inter-Module Communication IMC International Maintenance Center IMCC ISDN Management and Coordination Committee IMCI Increment Manager Command Interpreter IMCR Inter-MCU Connection Restored IMD Information Model Details imd Intercepted Message Dispatcher IMD InterModulation Distortion IMDB Integrated Manufacturing Data Base IMDC Intelligent Multiple-Disk Controller IM-DD Intensity-Modulated Direct-Detection IMDP Intermodulation Distortion Products IME Interface Management Entity IMEI International Mobile Equipment Identity IMEI International Mobile station Equipment Identity (GSM) IMET International Metering IMF Integrated Modeling Framework IMFP Inverse Modified FM IMFT ISDN Multifunctional Terminal IMG Image IMG Inline Image (HTML tag) IMH ISDN Method Handler IMHO In my humble opinion IMI Integral Message Indicator IMI Integrated Motions, Inc. IMI International Memories Inc. IMIB Internet Management Information Base IMIB Internet MIB IMIS Integrated Management Information System IMIS Integrated Motorist Information System (DRIVE) IML Incoming Matching Loss IML Initial Microcode Load IML Inter Message Switch Link IML Intermediate Language IMM IMMediately IMM Incoming Mate Mismatch IMM Information Movement and Management IMM Input Method Manager IMM International Maritime Mobile IMM International Mobile Machines Corporation IMMU Instruction Memory Management Unit IMN Intelligent Management Network IMNS IBM Managed Network Services IMNSHO In my not so humble opinion IMO In my opinion IMO International Maritime Organization IMP Implementation IMP Inbound Modem Pooling IMP Integrated Multiprotocol Processor IMP Interface Message Processor (ARPANET) IMP Internet Message Processor IMPATT Impact Ionization Avalanche Transit Time IMPDU Initial MAC PDU IMPDU Initial Medium access control Protocol Data Unit IM-PDU Initial MAC Protocol Data Unit IMPL Internal Mobile Power Level IMR Individual Message Register IMR Interactive Multimedia Retrieval IMR Interface Message Receiver IMR Interrupt Mask Register IMR Maximum Number of Invalid Messages Rejected IMRP Maximum Number of Invalid Messages Rejected for PRI IMRR Isolation-Mode Rejection Ratio IMS If Modified Since IMS Incoming Memory Slot IMS Individual Message Service IMS Information Management System IMS Input/Output Message System IMS Instructional Management System IMS Integrated Management System IMS Interactive Multimedia Services IMS International Magnetospheric Study IMS International Meta Systems IMS Inter-Process Message Switch IMSI Inter MAN System Interface IMSI International Mobile Station Identity IMSI International Mobile Subscriber Identifier IMSI International Mobile Subscriber Identity IMSL Inter Message Switch Link IMSP Internet Message Support Protocol IMSR Improved Modular Square Root IMSRP Intelligent Manufacturing Systems Research Program IMT Installation and Maintenance Terminal IMT Intermachine Trunk IMT Inter-Machine Trunk IMT International Mobile Telecommunications IMT2000 International Mobile Telecommunications 2000 IMT-2000 International Mobile Telecommunications-2000 IMTC International Multimedia Teleconferencing Consortium IMTC International Multimedia Teleconferencing Council IMTI International Mobile Terminal Identity IMTS Improved Mobile Telephone Service IMTS Improved Mobile Telephone System IMTSF Interstate Message Telecomunications Service Tariff IMTV Interactive Multimedia Television IMTX International Mobile IMU Instruction Memory Unit IMUG International Motif Users Group IMUI International Mobile User Identity IMUL Signed Multiply (80x86 inst) IMUN International Mobile User Number IMVOD Impulse Video On Demand IN IEEE Network (periodical) in Inch(es) IN Input from Port (80x86 inst) IN Intelligent Network IN Intelligent Node IN International IN International Number IN Interrogating Node IN ISO country code for Republic of India IN U.S. postal code for Indiana IN/1 Intelligent Network 1 IN1 Intelligent Network 1 IN2 Intelligent Network 2 INA Ineffective Network Attempt INA Information Networking Architecture INA Integrated Network Access INA Integrated Network Architecture INACT Inactive INAF Intelligent Network Access Function INAP IN Application Part (of ITU-T Signalling System number 7) INAP IN Application Protocol INAP Intelligent Network Access Point INAP Intelligent Network Access Protocol INAP Intelligent Network Application Part INAP Intelligent Network Application Protocol InATMARP Inverse ATMARP INB Installation Busy INBT ISDN National Billing Team INC Incoming INC INcoming Call INC Increment (80x86 inst) INC Incremental Backup Catalog File INC INCrementer INC Industry Numbering Committee INC International Carrier INC Internet Thruway Network Controller INCC Information Character Collection INCC International Network Controlling Center INCdPA Intelligent Network CdPA INCdPNo Intelligent Network CdPNo INCM Intelligent Network Conceptual Model INCONC INCONClusive INCPT Intercept INCZ INCrement ZAP field control bit Ind Independent IND Index IND Indication Ind Indication IND International Number Dialing IND Interrupt Disable INDB Intelligent Network Data Base INDB Intercept Database INDBMS Intelligent Network Data Base Management System INDC International No Double Connect INDI Informations- und Dialogdienste (Information and Dialog Services) INDIV Individual INDT Integrated Network Design Tools INE Intelligent Network Element INET Institutional Network INF Device Information file INF Information File INF Information Message INF Setup Information file INFO Information INFO Information message INFOL INFormation Oriented Language (Control Data Corporation) INFONET Information Network INFOTEX Information via Telex ING Integrated Ground INH Inhibit INHIP Inhibit In Progress INI Initialization File INI Initialized INIC current Negative Impedance Converter INIC ISDN Network Identification Code INIC ISDN Network Identification Code INIRC International Non-Ionising Radiation Committee INIS Integrated Networks' Integrated Services INIT INitialisation Information Element INIT Initialization INIT Initialize INLP Inactive Network Layer Protocol (early OSI-NL) I-NLSP Integrated Net Layer Security Protocol INM Integrated Network Management INM Integrated Network Monitoring INM Integrated Node Maintenance INMARSAT International Maritime Satellite Organization INMARSAT INternational MARitime SATellite organization Inmarsat International Mobile Satellite Organization (name change from May '96) INMC Integrated Network Management and Control INMC International Network Management Center INMD In-service Non-intrusive Measurement Device INMS Integrated Network Management Services INMS Integrated Network Management System INMS Integrated NMS (ATT) INMSG Incoming Message INN Intelligent Network News (periodical) INN Interconnecting Network Node INN Intermediate Network Node INN Internal Network Number INN InterNetNews INNO Intelligent Network Network Operator INOC Internet Network Operations Center inode Index Node INODE Integrated Node INOS Interactive Network Optimization System (ATT) InP Indium Phosphide INP Initial Period INP Input INP Integrated Node Processor INP Internodal Processor INP Intranode Policing INPA Inside the Base NPA INPA Interchangeable Numbering Plan Area InPh Indium Phosphide INPLANS Integrated Network Planning System INPW Illinois Number Portability Workshop INQ INQuiry INQ Inventory Notification and Query INR Information Request Message INRI Inter-Network Rate Indicator INRIA Institut National De Recherche En Informatique Et En Automatique INRIA The French National Institute for Research in Computer Science and Control INRI-B Inter-Network Rate Indicator, Backward INRI-F Inter-Network Rate Indicator, Forward INRQ Internal Request INS Information Network System INS Input String from Port (80x86 inst) INS Insert INS Inspect INS Integrated Network System INS Intelligent Network Server INS Intelligent Network Services INSB Input String from Port Bytes (80x86 inst) INSD Input String from Port Doublewords (80x86 inst) INSEM INterinstitutional Service for Electronic Mail INSEP Incoming Separations Class INSI Inter-Network Service Identification INSIS INterinstitutional integrated Services Information System INSO Intelligent Network Service Operator INSP Intelligent Network Service Provider INSPECT Inspect INSPECTBL Inspect Billing Records INSS Integrated Network Support System INSS Intelligent Network Service Subscriber IN-SSM IN-Switching State Model INSTAC Information Technology Research and Standardization Center InSv In Service INSW Input String from Port Words (80x86 inst) INT call INTrusion (supplementary service) INT Integer INT Integration INT Intercept INT Intercom INT Internal int International organizations domain INT Interrupt INT TR INTernational TRansit exchange INTA Interrupt Acknowledge INTAGG Internal Aggregate Calls INTAP Interoperability Technology Association for Information Processing INTC Intercept INTC Intercom Calls INTC INTerrupt Confirmation INTCM Intercom Dialing INTCM Intercom Dialing Plan INTCMPM Intercom Dialing for Packet Mode Data INTCMPM Intercom Dialing Plan for Packet-Mode Data INTE INTerrupt Enable(d) INTELSAT International Telecommunications Satellite Consortium INTERL InterLATA Dialing Sequences INTERNIC Internet Network Information Center InterNIC Internet Network Information Center InterOCT Interactive OCTAVE INTFCT Interface Type INTICOM Internal Intercom Calls INTIS International Transport Information System INTL International INTLOCK Interlock INTMI Internal Miscellaneous Connections INTO Interrupt on Overflow (80x86 inst) INTP Interrupt INTPFAC Internal Private Facilities INTR Interrupt Request INTRAL IntraLATA Dialing Sequences INTRALC IntraLATA Competition INTRALCP IntraLATA Competition for PRI INTUG INternational Telecommunications User Group INTUG International Telecommunications Users Group INTUG International Trade and User Groups INU Internetworking Unit INV INValid indication INV Inventory INV Inverter INV Invoke InvARP Inverse ARP INVC Internetwork Virtual Circuits Billing Records INW Inwards INW INWATS INWATS Inward Wide Area Telecommunications Service INWATS Inward Wide Area Telephone Service INWATSDNSFG INWATS Directory Number/SFG Association INWG Intelligent Networks WG (IFIP) INWG International Networks WG INWG InterNetwork Working Group IO Image Orthicon IO Ineffective Other IO Input/Output IO International Organization IO ISO country code for British Indian Ocean Territory I-O Interoffice IOAU Input/Output Audit IOBB Input/Output Broadband IOC Independent Operating Company IOC Information Operations Center IOC Input/Output Channel IOC Input/Output Controller IOC Integrated Optical Circuit IOC International Olympic Committee IOC International Operating Center IOC Inter-Office Communication IOC ISDN Ordering Code IOCS Input/Output Control System IOCTL I/O Control IOD Identified Outward Dialing IOD Input/Output Device IOE Illegal Operation Error IOE Input/Output Equipment IOF Interoffice Facility IOGA I/O Gate IOL Inter Orbit Link (Satellite Telecom.) IOL Inventory On Loan IOM Input/Output Multiplexer IOM ISDN-Oriented Modular IOM ISDN-Oriented Modular-interface IOM2 ISDN-Oriented Modular Rev 2.2 IOMC Interface OMC-NMC or OMC-OMC IOMM Input/Output Message Manual ION Integrated On-Demand Network ION Internetworking Over NBMA IONL Internal Organization of Network Layer (OSI-NL) IOP I/O Processing Element IOP Input/Output Processor IOP International Operator Position IOP Interoperability IOPAC International Outside Plant Cabinet IOPC Input/Output Processor Controller IOPL I/O Privilege Level IOPM International Outside Plant Module IOPS Internet Operators IOPT InterOPerability Testing IOR Indian Ocean Region (INTELSAT) IOR Input Output Register IOR Interoperable Object Reference IOS Input/Output Supervisor IOS Integrated Office Systems IOS Internetwork Operating System IOT In Orbit Test IOT Input/Output Trap IOT Interend Office Trunk IOT Inter-Office Trunk IOTC International Originating Toll Center IOUI Input/Output Utility Interface IOW In other words IP Implementation Profile IP Information Processing IP Information Provision IP Information Publication IP Initial Permutation IP In-Progress IP Instruction Pointer IP Instruction Prefetching IP Intellectual Property IP Intellectual Property Policy and Procedures IP Intelligent Peripheral IP Interexchange Plant IP Interface Point IP Interface Processor IP Interface Profile IP Intermodulation Product IP Internet Protocol IP Internetwork Protocol IP Interpersonal IP Interrupt Process IP ISDN Port IP&SP Information Processing and Storage Platform IP6 Internet Protocol Version 6 IPA Image Power Amplifier IPA Information Processing Architecture IPA Interface and Protocol Adaptor IPA Intermediate Power Amplifier IPA ISDN Performance Analyser IPAD Integrated PAD (OSI-SNA) IPAE Internet Protocol Address Encapsulation IPAP Intelligent Public Access Platform IPARS International Passenger Airline Reservation System IPATM Internet Protocol Over Asynchronous Transfer Mode IPAV Interface Programmable pour Application Vocale IPC IEEE Personal Communications (periodical) IPC Incoming Peg Count IPC Industrial Process Control IPC Input Port Controller IPC Intelligent Peripheral Controller IPC Interactive Personal Computer IPC Interperipheral Connection IPC Inter-Personal Computer IPC Interprocess Communication IPC Interprocess Communications IPC Inter-Process Control IPC Interprocessor Communications IPCDN IP over Cable Data Networks IPCP Internet Protocol Control Protocol IPCP IP Control Protocol IPCU Internet Packet Core Utility IPD Incident Power Density IPD Inductive Potential Divider IPD Installed Product Database IPD ISDN Parameter Group IPDN International Public Data Network IPDS IBM Personal Dictation System IPDS Intelligent Printer Data Stream IPDU Internetwork Protocol Data Unit IPE Image Pac Extension IPE In-Band Parameter Exchange IPE Intelligent Peripheral Equipment IPEC Intelligent Peripheral Equipment Cabinet IPEC Intelligent Peripheral Equipment Column IPEI International Portable Equipment Identity IPES Improved Proposed Encryption Standard IPEX Input, Parameter, Extra IPF Integrated Processor and F-Bus Interface IPG Inter-Packet Gap IPG ISDN Parameter Group IPH Integrated Packet Handler IPI Initial Protocol Identifier IPI Integrated Product Introduction IPI Intelligent Peripheral Interface IPI Interprocessor Interrupt IPI ISDN Preference Indicator IPI ISDN User Part Preference Indicator IPIFR IP Interface over Frame Relay IPIP IP within IP IPIVC IP Interface over VC IPJ Incoming Parallel Junctor IPL Initial Program Load IPL Initial Program Loader IPl Instandhaltungsplatz (Maintenance Station) IPL Interface Processing Level IPL Intermediate Printer Language IPL Interrupt Priority Level ipl Interrupt Priority Level IPLC International Private Leased Circuit IPLL Internet Protocol Local Loop IPLS IntraLATA Private Line Service IPM Impulses Per Minute IPM Inches Per Minute IPM Intelligent Power Management IPM Interpersonal Message IPM Interpersonal Messaging IPM Interruptions Per Minute IPM Management of Information Provision IPM UA Interpersonal Messaging User Agent (MHS) IPMI IP Multicast Initiative IPML Interperipheral Message Link IPMS Input, Parameter, Missing IPMS Interpersonal Messaging Service (MHS) IPNC Input, Parameter, Not Consistent IPNCP Internet Protocol Network Control Protocol IPNG Internet Protocol Next Generation IPng Internet Protocol Next Generation IPNNI Integrated Private Network-to-Network Interface I-PNNI Integrated PNNI IPNS ISDN PABX Networking Specifications IPNS ISDN PBX Networking Specification(s) IPNS ISDN Private Network Specification Forum IPNV Input, Parameter, Not Valid IPOA IP over ATM IPOP Internet Point of Presence IPOT Inductive POTentiometer IPP Independent Payphone Provider IPP Internet Presence Provider IPP Interrupted Poisson Process IPPC Internet Pluribus Packet Core IPPCP IP Payload Compression Protocol IPPV Impulse Pay Per View IPQ Instituto Portugues da Qualidade (P) IPQM In-Process Quality Metrics IPR Initial Period Rate IPR Intellectual Property Rights IPR Interrupt Pending Register IPRA Internet Policy Registration Authority IPRC Intellectual Property Rights Committee (ETSI) IPRM Internetwork Premium Rate IPS Inch Per Second IPS Incoming Packet Size IPS Inferences Per Second IPS Information Processing System IPS Initial Position Seizure IPS Instructions Per Second IPS Integrated Pricing System IPS Interactive Prompting System IPS Interperipheral Communication IPS ISDN Professional Services IPSB Interface Parallel System Bus (Multibus 2) IPSC Integrated Protection Switching Controller IPSEC IP Security Protocols IPSI International Portable Subscriber Identity IPSO Information Society Project Office IPSO IP Security Option IPSP IP Security Protocol IPSS International PSS IPST Interdepartmental Project Scope Team IPT Interactive Protocol Tester IPT Interpulse Time IPT Interrupt Pointer Table IPT ISDN Protocol Testhead IPTC International Press Telecommunications Council IPTO Information Processing Techniques Office IPTS Improved Public Telephone Service IPU Integer Processor Unit IPUI International Portable User Identity IPv4 Internet Protocol Version 4 IPv6 Internet Protocol Version 6 IPX Integrated Packet Exchange IPX Internet Packet Exchange IPX Internet Protocol Exchange IPX Internetwork Packet Exchange IPX Internetwork Protocol Exchange IPX Interwork Packet Exchange (Novell) IPX/SPX Interwork Packet Exchange/Sequenced Packet Exchange (Novell) IPXCP Internetwork Packet Exchange Control Protocol IPXWAN Internet Packet Exchange for Wide-Area Networks IQ In-Phase and Quadrature IQ Intelligence Quotient IQ Inverse Quantizer IQ ISO country code for Republic of Iraq I-Q In-Phase-and-Quadrature IQC Incoming Quality Control IQD Interquartile Difference IQM Intelligent Query Manager IQR Inter Quartile Range (25...75% Range of Histogram) IR Index Register IR Information Rate IR Information Request IR Information Retrieval IR Infrared IR Inquiry Response IR Instruction Register IR Insulation Resistance (Resistance to DC Leakage Current) IR Integration Robust IR Interbay IR Interface Repository IR Intermediate Reach IR Internet Registry IR Internet Router IR Interoffice Receiver IR Interrupt Request IR ISO country code for Islamic Republic of Iran IRA International Reference Alphabet IRAC Interagency Radio Advisory Committee IRAC Interdepartment Radio Advisory Committee IRAM Intelligent RAM IRAPI Intuity Response Application Programming Interface IRAS InfraRed Astronomical Satellite IRB Instruction Reorder Buffer IRB Instrumentation Request Broker IRC Idle Receiver Control IRC Information Resource Center IRC Interference Rejection Combining IRC Intermediate Routing Center IRC International Record Carrier IRC Internet Relay Chat IRCS Inter-Repeater Cable Segment IRD Information Resource Dictionary IRD Integrated Receiver/Descrambler IRD Integrated Receiver-Decoder IRD Interference Reduction Device IRD Interrogation and Response Device IRDA Infrared Data Association IrDA Infrared Data Association IRDO International Research & Development Operations IRDP ICMP Router Discovery Protocol IRDS Information Resource(s) Dictionary System IRE Information Resource Engineering IRE Institute of Radio Engineers IRED Infrared IRED InfraRed Emitting Diode IRF Information Request Failure IRF Interrogation Recurrence Frequency IRG Implicit ReGeneration IRG Internet Resource Guide IRG Inter-Record Gap IRI Incoming Route Information IRI Information Request Indicator IRIG Inter Range Instrumentation Group IRIP Intended Recipient Identity Presentation IRIS Interactive Recorded Information Service IRL In Real Life IRL Information Retrieval Language IRL Inter Repeater Link IrLAP Infrared Link-Access Protocol IRLCM International Remote Line Concentrating Module IRLED Infrared Light Emitting Diode IrLMP Infrared Link Management Protocol IRM Information Request Message IRM Insert/Replace Mode IRM Interrupt Mask Register IRN Immediate Ring Notification IRN Information Resource Network I-RNAM ISDN Redirecting Name Delivery IROH Inhibit Receiver Off Hook IROHAM Inhibit Receiver Off Hook for Analog Member of EKTS IRP I/O Request Packet IRP Interface for Remote Platforms IRP Internal Reference Point IRP International Routing Plan IRPA International Radiation Protection Association IRQ Information Request IRQ Interrupt Request IRR Immediate Reroute IRR Information Request Response IRR Inhibit Ring Reminder IRR Intelligent ReRouting IRR Internet Routing Registries IRS Identification Response message IRS Information Record Separator IRS Information Retrieval System IRS Initial Receive Sequence Number IRS Interface Requirements Specification IRS Intermediate Reference System IRS Internal Revenue Service IRS ITS Radio System IRSF Interface Resource Finder IRSG Internet Research Steering Group IRSP Interface Root Service Proxy IRT Increment Registration Table IRT Institut für Rundfunktechnik GmbH IRT Interrupted Ring Tone IRTF Internet Research Task Force IRTOS I2O Real-Time OS IrTP Infrared Transport Protocol IRTP Internet Reliable Transport Protocol IRU Indefeasible Right of Use IRUR Reset of UPT Registration for Incoming Calls IRV International Reference Version IS Immediate Start IS In Service IS Information Separator IS Information System(s) IS Initialisation Sequence IS Integrated Services IS Interface Specification IS Interference Subtraction IS Interim Specification IS Interim Standard IS Intermediate System IS International Standard IS International System (metric) IS Interstate IS Intraconnect Schematic IS ISDN State IS ISO country code for Republic of Iceland IS STBY In-Service Standby IS1 Information Separator 1 IS2 Information Separator 2 IS3 Information Separator 3 IS4 Information Separator 4 ISA Industry Standard Architecture (IBM) ISA Information Systems Architecture ISA In-Session Activation ISA Instruction Set Architecture ISA Integrated Services Access ISA Integrated Services Architecture ISA Intelligent Services Architecture ISA Interactive Services Association ISA International Service Analysis ISA International Smalltalk Association ISAKMP Internet Security Association and Key Management Protocol ISAM Indexed Sequential Access Method ISAP Instruction Supervisor Area Pointer ISAPI Internet Server Application Programming Interface ISAR Instruction System Address Register ISAS ISDN Smart Attendant Service ISB Independent Sideband ISB Individual Station Billing ISB Information Service Brokerage ISB Intelligent Signalling Bus ISBD International Standard Bibliographic Description ISBN International Satellite Business Network ISBN International Standard Book Number ISB-RC Independent SideBand Reduced Carrier ISB-SC Independent SideBand Suppressed Carrier ISC Information Systems Council ISC Installation Service Center ISC Instruction Set Computer ISC Intercompany Services Coordination ISC Intermediate System Confirm ISC International Service Carrier ISC International Services Center ISC International Switching Center I-SCA ISDN Selective Call Acceptance ISCC International Service Coordination Center I-SCF ISDN Selective Call Forwarding ISCII International Standard Code for Information Interchange ISCP Integrated Service Control Point ISCP Integrated Signaling and Control Part ISCP ISDN Signaling Control Part I-SCR ISDN Selective Call Rejection ISD Incoming Service Desk ISD Incremental Service Delivery ISD Independent Segment Decoding ISD Information System Development ISD Instructional Systems Design ISD International Subscriber Dialing ISDB Integrated Services Digital Broadcasting ISDD Incoming Start Delay to Dial ISDD Incoming Start-to-Dial Delay I-SDH Initial Synchronous Digital Hierarchy ISDLC Integrated Services Digital Line Card ISDN Integrated Services Digital Network ISDN/AP ISDN Application Protocol ISDNAP ISDN Application Protocol ISDNBGM ISDN BBG Member ISDNCS ISDN Customer Solutions ISDNFR Integrated Services Digital Network Family of Requirements ISDNI ISDN Class I Equipment ISDNII ISDN Class II Equipment ISDNOE ISDN Office Equipment ISDNP Integrated Services Digital Network Profile ISDNUP ISDN User Part ISDN-UP ISDN User Part ISDO In-Sequence Delivery Option ISDS Integrated Switched Data Service ISDT Integrated Services Digital Terminal ISDX Integrated Services Digital Exchange ISDX Integrated Services Digital eXchange ISE Intelligent Services Environment ISE Interactive Software Engineering ISF International Subscriber Feature ISFET Ion-Sensitive Field Effect Transistor ISG Information Systems Gateway ISG Information Systems Group ISG ISDN Service Group ISG ISDN Signaling Group ISG Isolated System Ground ISG Isolated System Grounding ISH Information Super Highway ISH Intermediate System Hello ISI Industry Support Interface ISI Information Sciences Institute ISI Institute of Scientific Information ISI Instruction Storage Interrupt ISI Integrated Systems Inc. ISI Intelligent Services Interface ISI Intersymbol Interference ISI InterSystem Interface ISIA Isolation Shunt Interface Adapter ISIP International Student Intern Program ISIS Integrated Standardisation Information System ISIS Intermediate System to Intermediate System IS-IS Intermediate System to Intermediate System IS-IS Intermediate System to Intermediate System Protocol ISL Initial System Loader ISL Integrated Services Link ISL Internal Surge Limiter ISL Internetworking Switch Link ISL InterSatellite Link ISLC Information Systems Learning Center ISLC ISDN Line Card I-SLE ISDN Screening List Editing ISLETXT ISDN Screen List Editing Text ISLM Integrated Services Line Module ISLS Interrogation-path SideLobe Suppression ISLU Integrated Services Line Unit ISLUA International SL-1/Meridian 1 Users Association ISM Industrial, Scientific and Medical (equipment) ISM Information Service Management ISM In-Service Measurement ISM Integrated Service Module ISM Integrated Services Model ISM Integrated Synchronous Multiplexer ISM Intelligent Synchronous Multiplexer ISM Internet Service Manager ISM Invocation State Machine ISM ISDN Stanadards Management ISM ISDN State Machine ISM ISDN ISDN Standards Management Special Committee ISMA Inhibit Sense Multiple Access ISMC International Switch Maintenance Center ISMC International Switching Maintenance Center ISME Integrated Services Module Enhanced frame ISMF Internet-Standard Management Framework ISMS Integrated Service Management System ISMX Integral Subrate Multiplexer ISMX Integrated Subrate Multiplexer ISN Information Storage Node ISN Information system Network (ATT) ISN Initial Sequence Number ISN Integrated Services Node ISN Intelligent Services Network ISN Intelligent Services Node ISNAP Intelligent Services Network Application Processor ISNI Intermediate Signaling Network Identification ISNI Intermediate Signaling Network Identifier ISNMS Intelligent Switched Network Management System IS-NNI Inter System Network Node Interface ISO In Search Of ISO Infrared Space Observatory ISO International Organization for Standardization ISOC The Internet Society ISO-CMOS Isolated Fully Recessed Complementary Metal Oxide Semiconductor ISoD Interactive Service on Demand ISODE ISO Development Environment ISOG INTELSAT Signatories and Operators Group I-SOM Intermediate Code-System Object Module ISONET ISO information NETwork ISOO Increment Specific Override Object ISOTAS International Symposium on Object Technologies for Advanced Software ISP Independent Software Vendors ISP Information Service Provision ISP Information Services Provider ISP In-Store Processor ISP Instruction-Set Processor ISP In-System Programming ISP Integrated Services Platform ISP Integrated System Peripheral ISP Intelligent Services Peripheral ISP Interface Service Profile ISP Intermediate Services Part ISP International Signaling Point ISP International Standard Profile(s) ISP International Standardized Profile ISP International Standards Profile (ETSI) ISP Internet Service Provider ISP Interrupt Stack Pointer ISP Intra-Subnetwork Protocol ISP ISDN Service Provisioning ISP ISDN Signaling Preprocessor ISP ISDN Signaling Processor ISPABX Integrated Services Private Automatic Branch Exchange ISPBF Internet Service Provider Business Forum ISPBX Integrated Services Private Branch Exchange iSPC International Signalling Point Code ISPC International Sound Programme Centre ISPCS Integrated System for Public Communication Services ISPF Interactive System Productivity Facility ISPI Intelligent model for System Provisioning Information ISPI Internetwork Service Profile Interrogation ISPICS ISP Implementation Conformance Statement ISPICS ISP Profile ICS ISPM Internetwork Service Profile Modification ISPN Integrated Services Packet Network ISPS International Service Position System ISP-SP International Standards Organization- Still Picture ISPT Instituto Superiore delle Poste e delle Telecomunicaziones ISPT Internetwork Service Profile Transfer ISQL Interactive Structured Query Language ISR Independent Software Release ISR Information Storage and Retrieval ISR Initial Submission Rate ISR Integrated Switch Router ISR INTELSAT System Record ISR Inter System Roaming ISR Intermediate Session Routing ISR Interrupt In-Service Register ISR Interrupt Service Routine ISR Inter-System Routing (NetMaster-Systems Center) ISRB Intelligent Source Routing Bridge ISS Initial Send Sequence Number ISS Integrated Switching System ISS International Small Switch ISS International Switching Symposium ISS Internet Security Systems ISS Inter-Satellite Service ISS Ionica Switch Site ISSB Independent Single SideBand ISSB Intel (Inc.) Serial System Bus (Multibus 2) ISSC Information Systems Solutions Corporation ISSCC International Solid-State Circuits Conference ISSI Individual Short Subscriber Identity (TETRA) ISSI Inter Switching System Interface ISSI Inter-Switching System Interface ISSLL Integrated Services over Specific Link Layers ISSLS International Symposium on Subscriber Loops and Services ISSN Integrated Special Services Network ISSN International Standard Serial Number (Publications) ISSS Interactive Subscriber Service Subsystem ISSU Integrated Services Switching Unit IST Integrated Services Terminal (Voice, Data, Text, Fax, etc) IST Integrated Switching and Transmission ISTB In-Service Trouble ISTb In-Service Trouble ISTC International Satellite Transmission Center ISTC International Switching and Testing Center ISTN Integrated Switching and Transmission Network ISTO Information Systems Technology Office ISTP Integrated Signal Transfer Point ISU Incremental Software Update ISU Independent Signal Unit ISU Initial Signal Unit ISU Integrated Services Unit (ISDN) ISU Iridium Subscriber Unit ISU ISDN Service Unit ISUP Integrated Services User Part (of ITU-T Signalling System number 7) ISUP ISDN User Part ISV Independent Software Vendor ISV International Standard Profile(s) ISVM Interswitch Voice Messaging ISW Interswitch Trunk ISW Inverted Synchronization Word ISW Ionica Switch IT Inactivity Test IT Incoming Translation IT Information Technology IT Information Theory IT Information Type IT Insert Tape IT Integration Test IT Integration Tested IT Integration Testing IT Integration Testing Completed IT Intelligent Terminal IT Interexchange Trunk IT Internet Thruway IT InterTandem IT Intertandem Trunk IT Intertoll IT Intertoll Trunk IT ISO country code for Italian Republic (Italy) IT&T Information Technology and Telecommunications IT/PTA Integration Testing Completed/Product Test Acceptance IT/PTA Integrity Testing/Product Test Assessment ITA Independant Television Authority ITA Independent Television Authority ITA Ineffective Traffic Attempt ITA Integrated Trunk Access ITA Interim Type Approval ITA International Telegraph Alphabet ITA1 International Telegraph Alphabet No. 1 ITA2 International Telegraph Alphabet No. 2 ITA3 International Telegraph Alphabet No. 3 ITA4 International Telegraph Alphabet No. 4 ITAA Information Technology of America ITAC International Telecommunications Advisory Committee ITAC International Test Access Controller ITACA IBCN Testing Architecture for Conformance Assessment ITAD Integrated Telephone Answering Device ITAEG IT Advisory Expert Group ITAEGC Information Technology Ad-hoc Expert Group on Certification ITAEGC IT Advisory Expert Group on Certification ITAEGM Information Technology Ad-hoc Expert Group on Manufacturing Automation ITAEGM IT Advisory Experts Group on Advanced Manufacturing Technologies ITAEGS Information Technology Ad-hoc Expert Group on Standards ITAEGS IT Advisory Expert Group on Standardization ITAEGT IT Advisory Experts Group for Private Telecommunications Networks ITAEGT IT Advisory Experts Group for private Telecommunications networks ITAEGV Information Technology ad hoc Experts Group on Security ITAP ISDN Test Access Path ITAR International Trafficking in Arms Regulation ITATS International TATS ITB Incoming Trunk Busy ITB Intermediate Text Block-check, ITC IEEE Transactions on Communications (periodical) ITC Inbound Toll Call ITC Incoming Throughput Class ITC Incoming Trunk Characteristics ITC Incoming Trunk Circuit ITC Independent Telephone Company ITC Information Technology Center ITC Information Transfer Capability ITC Input Capture/Input Transition Counter ITC Intermediate Toll Center ITC International Telecommunications Center ITC International Teletraffic Conference ITC International Television Center ITC International Trade Commission ITC International Typeface Corporation ITC Internet Telephony Consortium ITC Interoperability Test Center (private) ITCA International Teleconferencing Association ITCC International Telecommunication Charge Card ITCCC IT Coordination Committee for Certification (CEN) ITCP International Thomson Computer Press I-TCP Indirect Transmission Control Protocol ITCS ISDN Terminal Contention Service ITCT IEEE Transactions on Communication Technology (periodical) ITDC Information Technology Development Corporation ITDM Intelligent Time-Division Multiplexer ITDN Integrated Telephone and Data Network ITE Information Technology Equipment ITE Internal Terminal Emulator ITE International Telephone Exchange ITE International Transmission Exchanges ITESF Internet Traffic Engineering Solutions Forum ITF Information Transport Function ITF Interactive Test Facility ITF InTerFace ITFS Instructional Television- Fixed Service ITG Independent Testing Group ITG Interactive Test Generator ITHI Interactive Terminal Host Interface ITI Idle Trunk Indicator ITI Industrial Technology Initiative ITI Industrial Technology Institute ITI Information Technology Industry Council ITI Interactive Terminal Interface ITI Intermittent Trouble Indication ITIMS In-service Transmission Impairment Measuring System (Telecom) ITLB Instruction Translation Lookaside Buffer ITM Increment Test Manager ITM Inspection du Travail et des Mines (LUX) ITM Integrated Test Master ITM Integrated Transport Management ITM Intelligent Test Bus Master ITM Intelligent Test Master ITM Interactive Test Monitor ITM ISDN Test Module ITM8 International Trunk Module, 8-Wire ITMC International Test and Maintenance Center ITMC International Transmission Maintenance Center ITMS Internet Thruway Management System ITN Independent Telecommunications Network ITN Integrated Test Network ITN Internetwork ITO International Trunk Override ITOC Image Table of Contents ITOC Independent Telephone Operating Company ITOP International Traffic Operator Position ITOPS International Traffic Operator Position System ITOT ISO Transport Service On Top of TCP ITP Integrated Test Platform ITP Integrated Test Position ITP Integration Test Plan ITP InterLATA Toll Presubscription ITP International Thomson Publishing ITPA Independent Telephone Pioneers Association ITPC International Television Program Center ITQS Information Telecommunication Quality System (ETSI) ITR Information Transfer Rate ITR Instrumentation Tape Recorder ITR Integrated Telephone Recorder ITR INTELSAT Test Record ITRC Information Technology Requirements Council ITRLD Increase Power Threshold ITRON Industrial TRON ITRSG Information Technology Resources Support Group ITS Information and Transaction Server ITS Information and Transaction Services ITS Informationstekniska Standardiseringen ITS Insertion Test Signals (Video VITS) ITS Institute for Telecommunication Sciences ITS Integrated Test System ITS Integrated Testing System ITS Integrated Timing Supply ITS Integrated Tool Set (SPAG etc.) ITS Integrated Transmission and Switching ITS Intelligent Transport Systems ITS Intelligent Transportation System ITS Interface, Terminal, and Session ITS International Telecom Symposium ITS Internet Telephony Server (Lucent Technologies) ITS Internet Telephony Services ITS Invitation To Send ITS Ionica Transceiver System ITSC International Telephone Services Center ITSC International Transmission Switching Centre ITSC Interregional Telecommunications Standards Conference ITSCJ Information Technology Standards Commission of Japan ITSE Incoming Trunk Service Evaluation ITSEC Information Technology Security Evaluation Criteria ITSFSD Internet Telephony Services Feature Specification Document ITSI Individual TETRA Subscriber Identity ITSO International Technical Support Organization (IBM) ITSP Intermediate Translation Signalling Point ITSP Internet Telephony Service Provider ITSSP Internet Telephony Server for Service Providers ITSTC Information Technology Steering Committee ITSTC Information Technology STeering Committee ITSU Information Technology Standards Unit ITT International Telephone and Telegraph Company ITU International Telecommunication Union ITU-D International Telecommunication Union- Development Sector ITUG International Tandem Users Group ITU-R International Telecommunication Union- Radiocommunication Scector ITUSA Information Technology Users Association ITUSA Information Technology Users' Standards Association ITU-T International Telecommunication Union- Telecommunication Standardization Sector ITU-TSS International Telecommunication Union Technical Standards Sector ITV Incremental Threshold Value ITV Independent Television ITV Industrial Television ITV Instructional Television ITV Interactive Television I-TV Interactive Television ITVT IEEE Transactions on Vehicular Technology (periodical) ITW Internet Thruway IU Integer Unit IU Interface Unit IU Interunit IUAP Instruction User Area pointer IUAP Internet User Account Provider IUC International Unicode Conference IUC Inter-Unit Communication IUF ISDN User Forum IUG Implementation User Guide IUS Information Unit Separator IUT Implementation Under Test IV Initial Vector IV Initialization Variable IV Initialization Vector IV Interactive Video IV&V Independent Verification and Validation IVA Interactive Voice Application IVAN International Value-Added Network IVAP ISDN syntax-based VAP IVC Intelligent Visual Computing IVD Audio Visual Interleaved IVD Integrated Voice and Data IVD Interactive Video Disk IVDLAN Integrated Voice Data LAN (IEEE 802.9) IVDM Integrated Voice/Data Module IVDS Interactive Video and Data Service IVDT Integrated Voice and Data Terminal IVDT Integrated Voice-Data Terminal IVEC Interarea Vector Coordinates IVES Information Vending Encryption System IVHS Intelligent Vehicle Highway System IVI Indeo Video Interactive IVIA International Videotex Industry Association IVLA Four Letter Acronym IVMO Initial Value Managed Object IVMS Integrated Voice Message System IVN Interactive Video Network IVO Internal Verification Office IVOD Interactive Video on Demand IVOT Internetwork Televoting IVP Integrated Voice Protocol IVPN International Virtual Private Network IVR Interactive Voice Response IVS Integrated Voice Service IVS Interactive Video Server IVS Interactive Video Services IVS Interactive Voice Subsystem IVS Interactive Voice System IVSN Interactive Video Services Network IVT Interrupt Vector Table IVT ISDN syntax-based VT IVTC IEEE Vehicular Technology Conference IW Index Word IW Information Warehouse IW Initialisation Word loaded into pseudo-random sequence generators for descrambling IW Insertion Word IW Inside Wire IW Interworking IWA International Webcasting Association IWAC ISDN Wide Area Centrex IWCA Inside Wiring Cable IWCE International Wireless Communications Expo IWCS Integrated Wideband Communications System IWE Interworking Equipment IWF Interworking Function IWM Integrated Woz Machine IWMSC Interworking MSC IWMSC InterWorking MSC IW-MSP Interworking MSP IWP Interim Working Party IWP InterNotes Web Publisher IWPN Interworking with Private Networks IWS Incoming Window Size IWS Intelligent Workstation IWS Intelligent Workstation System IWS Interworking Signaling IWSS Intelligent Workstation System IWT INWATS (800 Service) IWU Interworking Unit IWWS Integrated Wireless/Wireline Services IXC Interexchange Carrier IXI International X.25 Infrastructure/Interconnect (X.25) IXIT Implementation Extra Information for Testing IXT Interaction Crosstalk
J Joint Meeting (ETSI)
J Joule
J JTM Service
J2MV Japanese 2 Mbps Voice
JAA Joint Aviation Authorities
(an associated body of European Civial Aviation Conference- ECAC)
Jacl Java Command Language
JAD Joint Application Design
JAD Joint Architectural Design
JAD Joint Architecture Design
JADE Java Application Development Environment
JAES Journal of the Audio Engineering Society
JAIST Japan Advanced Institute of Science and Technology
JAM JYACC Application Manager
JAN Joint Army-Navy
JANAP Joint Army-Navy-Air Force Publications
JANOG Japanese Network Operators Group
JAPH Just Another Perl Hacker
JAR Java Archive
JAR Joint Aviation Requirements
JARS Java Applet Rating Service
JAV Java Source Code
javac Java Compiler
JAW Just Ask Why
JB Junction Box
JBCL JavaBeans Component Library
JBE JavaBean Editor
JBIG Joint Bi-level Image expert Group
JBIG Joint Bilevel Image Group
JBPC Java-Based Pipeline Configurator
JC Jack Connection
JC Joint Committee
JC Journalling Controller
JCE Java Cryptography Extension
JCG Joint Coordination Group (CEN/CENELEC/ETSI)
JCL Job Control Language
JCT Japanese Cordless Telephone
JCT Journal Control Table
JCTR Junctor
JD Joint Detection
JD Julian Day
JDAS Joint Design Acceptance Strategy
JDB Java Debugger
JDBC Java Database Connection
JDBC Java Database Connectivity
JDC Japanese Digital Cellular
JDK Java Developer's Kit
JDK Java Development Kit
JDN Julian Day Number
JDT Joint Design Team
JDT Joint Development Team
JECF Java Electronic Commerce Framework
JEDEC Joint Electronic Devices Engineering Council
JEEC Joint ETSI-ECMA Committee
JEF Japanese Processing Extended Feature
JEIA Japanese Electronics Industry Association
JEIDA Japan Electronic Industry Development Association
JEM Joint Experts Meeting
JEPI Joint Electronic Payment Initiative
JES Job Entry Subsystem
JESSI Joint European Submicron Silicon Initiative (Eureka)
JET Jack Ended Trunk
JET Joint venture Evaluation Tool
JF Journal File
JF Junctor Frame
JFC Java Foundation Classes
JFDB Job Feature Database
JFET Junction Field-Effect Transistor
JFIF JPEG File Interchange Format
JFMG Joint Frequency Management Group
JFRF Japan Frame Relay Forum
JFS Journal File System
JFS Journaling File System
JFS Jumbo Group Frequency Supply
JFT Job File Table
JFY Justify
JGF Junctor Grouping Frame
JI Junction Isolation
JIA Joint Implementation Agreement
JIDM Joint X/Open NMF on Inter-Domain Management
JIF Java Intranet Framework
JIP Jurisdiction Information Parameter
JIS Japan Industrial Standard (JAP)
JISC Japan Industrial Standards Committee (JAP)
JISC Japanese Industrial Standards Committee
JIT Just In Time
JITEC Joint Information Technology Experts Committee
JIWP Joint Interim Working Party (ITU-R)
JLCC J-Lead Chip Carrier
JLS Java Language Specification
JM ISO country code for Jamaica
JMAPI Java Management API
JMDR Japan Message Detail Recording
JMF Java Media Framework
JMG Joint Management Group
JMP Jump
JMPS Japanese Mobile Phone System
JMX Jumbo Group Multiplex
JND Just Noticeable Distortion
JNDI Java Naming Directory Interface
JNET Junctored Network
JNI Java Native Interface
JNRC Joint Nuclear Research Centre
JNT Joint Network Team (UK)
JO ISO country code for Hashemite Kingdom of Jordan
JOBQ JOB Queue
JOHNNIAC JOHN's (von Neumann) Integrator and Automatic Computer
JOOP Journal of Object-Oriented Programming
JOSS Joint Object Services Submission
jp Internet country code for Japan
JP ISO country code for Japan
JPE JPEG File
JPEG ISO/IEC Joint Photographic Experts Group
jperl Japanese Perl
JPG Joint Presidents Group (CEN/CENELEC/ETSI)
JPG JPEG File
JPI Java Platform Interface
JPL Jet Propulsion Laboratory (Pasadena California USA)
JPN7 Japan Public Network 7
JQC Journalling Queue Controller
JRAD Joint/Rapid Application Development
JRC Joint Radio Committee (UK)
JRE Java Runtime Environment
JRET Joint Requirements Engineering Team
JRG Joint Rapporteur Group (ETSI)
JRG Joint Research Group
JRI Java Runtime Interface
JRI Joint Research Institute
JRMP Java Remote Method Protocol
JRTIC Joint Radiophone Technical Interfaces Group
JS JavaScript
JSA Japanese Standards Association
JSAC IEEE Journal on Selected Areas in Communications (periodical)
JSAPI Java Speech API
JSB Jump To Subroutine
JSC Joint Scientific Committee
JSD Jackson Structured Development
JSF Junctor Switch Frame
JSM Job Service Model
JSP Jackson Structured Programming
JSP Job Service Provider
JSR Jump to Subroutine
JSSST Japan Society for Software Science and Technology
JST Japan Standard Time
JSU Job Service User
JTAC Joint Technical Advisory Committee
JTACS Japan TACS
JTACS Japanese TACS
JTAG Joint Test Access Group
JTAM Job Transfer And Manipulation
JTAPI Java Telephony API
JTC Joint Technical Committee (EBU/ETSI)
JTC Joint Technical Committee (IEC, ISO)
JTC1 Joint Technical Committee 1
JTCG Joint Technical Co-ordination Group
JTCI Joint Technical Committee on Information Technology
JTEC Japan Telecommunications Engineering and Consultancy
JTF Joint Task Force
JTM Job Transfer and Manipulation
JTPC Joint Technical Programming Committee (IEC)
JTPL Jini Technology Public License
JTR Japan Telecommunications Review (periodical)
JTS JNET Transport System
JTS Junctor Transport System
JTS/BFP Junctor Transport System/Basic Format Packetization
JTS-BFP Junctor Transport System-Basic Format Packetization
JUG Java Users Group
JUGFET Junction Field-Effect Transistor
JUGHEAD Jonzy's Universal Gopher Hierarchy Excavation and Display
JV Joint Venture
JVC Japan Victor Company
JVC Java Foundation Classes
JVC Juggling Virtual Connection
JVM Java Virtual Machine
JWG Joint Working Group
JWI Jumper Wire Interface
JWP Joint Working Party
K Authentication Key
K Constraint Length of the Convolutional Code
K Kelvin
K Key
K Kilo (1000 or 1024)
k kilo (1000)
k Kommende (Incoming)
K&R Kernighan and Ritchie
KAK Key-Auto-Key
KALM Keyed Association Link Manager
KAM Keyboard Action Mode
KAS Kiva Administrative Server
KAU Keystation Adapter Unit
KB Keyboard
kb Kilobit
KB KiloByte (1024 Bytes)
KB Knowledge Base
KB Knowledge-Based
KBD Keyboard
KBD Keyboard Dialing
KBD Keyboard Input (HTML tag)
KBHCA Thousand Busy Hour Call Attempts
Kbit/s Kilobits Per Second
kbps Kilobits Per Second
KBps Kilobytes Per Second
Kbs Kilobits Per Second
KBS Knowledge Based System
KBS Korea Bureau of Standards
kbyte Kilobyte
Kc ciphering Key
KCMS Kodak Color Management System
KCP Keyset Call Processing
kcps kilocycles per second (obsolete, now Hz)
KCR Key Call Receiver
kcs Kilocycles per Second
KCS Kiva C++ Server
KDC Key Distribution Center
KDD Kermit Dialing Directory
KDD Kokusai Denshin Denwa Co. Ltd. (Japan)
KDE KeyboarD Entry
KDE Kommunikationsdatenerfassung (Call Detail Recording)
KDS Keyboard Display Station
KDS Kommunikationsdatensatz (Call Detail Record)
KDT Keyboard Display Terminal
KDU Kommunikationsdatenubertragung
(operations system for the transfer of billing information)
KDV Kommunikationsdatennachverarbeitung (Billing Post-Processor ) (Host)
KE ISO country code for Republic of Kenya
KE KErnel
KE Key Equipment
KE Key Escrow
KEA Key Exchange Algorithm
KEC Key Escrow Component
KEES Key Escrow Encryption System
KEK Key Encrypting Key
KEMA N.V. tot Keuring van Electrotechnische Materialen (NL)
KES Key Escrow System
KETC Kelly Education and Training Center
KEV Kilo Electron-Volt
KEY personal KEY number
KEY HOLD Key Hold message
KEY REL Key Release message
KEY SETUP Key Setup message
KEY SETUP ACK Key Setup Acknowledge message
KG ISO country code for Kyrgyz Republic (Kyrgyzstan)
kg Kilograms
KGD Known Good Die
KGU Known Good Unit
KH ISO country code for Kingdom of Cambodia (formerly Kampuchea)
kHz kiloHertz
Ki individual subscriber authentication Key
KI ISO country code for Kiribati
KID key_instance_data
KIF Knowledge Interchange Facility
KIF Knowledge Interchange Format
KIP Kinetics Internet Protocol
KIPS Kilo Instructions Per Second
KIPS Thousands of Instructions per Second
KIS Knowbot Information Service
KIS Kodak Imaging Services
KISS Keep It Simple, Stupid
KISS Keep It Sweet and Simple
KISS Kristen Information and Software Services
KJS Kiva Java Server
KL Key Lever
KL Kilo Lines
KLIC Key-Letter In Context
KLM Kernel Lock Manager
KLOC Kilo Lines Of Code
KLOEC Kilo Lines of Executable Code
KM ISO country code for Federal and Islamic Republic of the Comoros
KM Key Mapping
km Kilometer
KM128X75 K Mod-128 Parameter for X.75
KM8X75 K Mod-8 Parameter for X.75
KMA Kernel Memory Allocator
kmc Kilomegacycles
KMS Knowledge Management System (AI)
KN ISO country code for Saint Kitts and Nevis
KNADR Koppelnetzaddresse (Switching Network Address) (Line Equipment Number)
KNCSL Thousand Non-Commentary Source Lines
KOB Kernel Object Browser
kohm Kilohm
KONTES Kundenorientierte Neugestaltung der Teilnehmerdienste
mit Einsatz von DV-Systemnen (Subscriber Service Management Application)
KOPS Kilo-Operation Per Second
KP Beginning of Pulsing Signal
KP ISO country code for Democratic People's Republic of Korea (North Korea)
KP Key Pulse signal
KP Keypad
KP KeyPad information element
KP Keypulse
KPA Key Pulse Adapter
KPD Keypad Digits
KPD Known Product Defect
KPF Key Pulse on Front
KPIC Key-Phrase In Context
kpsi Kilopounds Per Square Inch
KQML Knowledge Query and Manipulation Language
KR ISO country code for Republic of Korea (South Korea)
KR Knowledge Representation
KRB Kerberos
KRITIC Knowledge Representation and Inference Techniques in Industrial Control (Esprit)
KRS Knowledge Retrieval System
KS Authentication Session Key
KS Kapsch and Schrack
KS Kearney Specification
KS Key Set
KS Korean Standard
KS PP authentication Session Key
KS U.S. postal code for Kansas
KS' FP authentication Session Key
KSAM Keyed Sequential Access Method
KSC Knowledge Systems Corporation
KSD Kermit Services Directory
KSDS Key Sequenced Data Set
KSE Keyboard Source Entry
Kset Key Set
KSG Key Stream Generator
KSH Key Short Hunt
KSH Keyset Short Hunt
KSH Korn Shell
ksh Korn Shell
KSI Korea Standards Institute
KSLOC Kilo Source Lines of Code
KSMOH Key Set Music On Hold
KSPS Kilo Samples Per Second
KSR Keyboard Send/Receive
KSS Key Stream Segment
KSU Key Service Unit
KSU Key System Unit
KT Keying Trunk
KT Korea Telecom
KTA Key Telephone Adapter
KTH Swedish Royal Institute of Technology
KTILE Development Centre for Telecommunications (GR)
KTN Kernel Transport Network
kTN kernel Transport Network
KTRK Killer Trunk
KTS Key Telephone Set
KTS Key Telephone System
KTU Key Telephone Unit
kV Kilovolt(s)
kVA Kilovolt-Amperes
KVM Keyboard, Video, Mouse (generally KVM Switch)
KVSt Knotenvermittlungsstelle (Trunk Tandem Switching Exchange)
(regional exchange, 3rd level of transit/long distance network)
KW ISO country code for State of Kuwait
KW KiloWatt
KW Kilowatt(s)
KW KiloWord
KWIC Key-Word In Context
KWIT Key-Word In Title
KXS Kiva Executive Server
KY ISO country code for Cayman Islands
KY U.S. postal code for Kentucky
KZ ISO country code for Kazakhstan
L DC Balancing Bit L Inductance L Length L Line L Link Layer L Load current L Locator l LONG (long) L Long Duration L Low l Low Frequency L Radiance L.O. Local Oscillator L/A Loop Around L0 level zero L1 Layer 1 L1 Level 1 L1 A/D Layer 1 Activation/Deactivation L1A/D Layer 1 Activation/Deactivation L1ACT Layer 1 Activated L1AD Layer 1 Activation/Deactivation L1DEACT Layer 1 Deactivated L1GW Level 1 Gateway L1TH Layer 1 Thresholds L1THGP Layer 1 Performance Monitoring Thresholds Group Identifier L2 Layer 2 L2 Level 2 L2 Secondary Cache L2F Layer-2 Forwarding L2F Level 2 Forward L2FP Layer 2 Forwarding Protocol L2GW Level 2 Gateway L2IF Layer 2 Interface L2ML Layer 2 Management Link L2ML Layer 2 Management Link L2R Layer 2 Relay L2R BOP L2R Bit Oriented Protocol L2R COP L2R Character Oriented Protocol L2RCOP L2R Character-Oriented Protocol L2TP Layer 2 Tunneling Protocol L2TP Level 2 Tunneling Protocol L3 Layer 3 L3 Level 3 L3_end Indicates Last Packet of a layer 3 Message L3TV Low Level Light Television L4 Layer 4 L4 Level 4 LA ISO country code for Lao People's Democratic Republic (Laos) LA Light Armor LA Line Adapter LA Link Adaptation LA Listed Address LA Load Accepted LA Load Available LA Local Agent LA Local Authority LA Location Area LA Logic Analyser LA Logical Address La Tip Wire LA U.S. postal code for Louisiana LA5 International Alphabet No. 5 LAC L2TP Access Concentrator LAC Link Admission Control LAC Location Area Code LAD digitaler Leitungsanschluss (Digital Line Access Module) LADDR Layered Device Driver Architecture LADS Labor Distribution System LADS Local Area Data Set LADT Local Area Data Transport LAF License Authorization Form LAF Load Accepted Form LAI Location Area Identification LAI Location Area Identity LAIC Loopback Access Interface Card LAIS Line Alarm Indication Signal LALSD Language for Automated Logic and System Design LAM Land/Aeronautical/Maritime LAM Lobe Attachment Module LAM Location Accuracy Matrix LAMA Local Automatic Message Accounting LAMP Local Area Multiprocessor LAN Local Area Network LANA LAN Adapter LANCE Local Area Network Controller LANCOMM LAN Communications LANDP LAN Distributed Platform LANE LAN Emulation LAP Line Access Point LAP Line Access Protocol LAP Link Access Procedure LAP Link Access Protocol LAP Local Access Provider LAPB Link Access Procedure- Balanced LAPB Link Access Protocol Balanced LAP-B Link Access Procedure Balanced LAPC A DLC protocol LAPD Link Access Procedure for the D-Channel LAPD Link Access Procedure on the D-channel LAPD Link Access Protocol Digital LAPD Link Access Protocol for the D-Channel LAP-D Link Access Procedures for the D-Channel LAPDm Link Access Protocol Digital Mobile LAPDm Link Access Protocol on the Dm channel LAP-Dm Link Access Protocol on the Dm channel LAPF Link Access Procedure for Frame Mode Bearer Services LAPF Link Access Procedures for Frame Mode Bearer Services LAPF Link Access Protocol for Frame Relay LAPG Link Access Procedure on the G-Channel LAPM Link Access Procedure for Modems LAPM Link Access Procedure-Modem LAP-M Link Access Procedure-Modem LAPR Link Access Protocol for Radio LAPV5 Link Access Protocol for the V5 Interface LAPV5-DL LAPV5 Data Link Sublayer LAPV5-EF LAPV5 Envelope Function Sublayer LAR Load Access Rights LAR Load Access Rights LAR Local and Remote LAR Logarithmic Area Ratio LAR Lot Acceptance Rate LARP Local And Remote Printing LAS Local Analog Switch LAS Logic Analysis System LAS Low-Altitude Satellite LASCR Light-Activated Silicon Controlled Rectifier LASD Large Area Screen Display LASER Light Amplification by Stimulated Emission of Radiation LASS Local Alarm Scanning System LASS Local Area Signaling Services LASS Local Area Signaling System LASSO LAser Synchronisation from Stationary Orbit LAT Local Access Terminal LAT Local Area Terminal Lat Local Area Transport LAT Local Area Transport (DECnet) LAT Long-Term Architecture (ITU) LATA Local Access and Transport Area (US) LATA Local Area Transport Arrangement LATD LATA Digits LATID Large Angle Tilted Implant Drain LATIS Loop Activity Tracking Information System LATS Latin American Telecommunications Summit LATS Loop Access Test System LAU Line Adapter Unit LAURA Local Area network User Radio Access (ESPRIT) LAVC Local Area Vax Cluster (Network, Digital Equipment Corporation) LAWN Local Area Wireless Network LayMan Layered Development Manager LayMan Layered Manager LB ISO country code for Lebanese Republic (Lebanon) LB Leaky Bucket LB List Box LB Local Battery LB Local Bus LB Loop Back LB Loopback LB Low Band LB Postal code for Labrador Lb Ring Wire LBA Logical Block Address LBA Logical Block Addressing LBA Lower Boundary Address LBAND Local Band LBC LAN Buffer Controller LBC Logical Bearer Channel LBCST Local Broadcast LBE Load Build Element LBE Loopback Enable LBJ Light Bulb Joke LBN Line Balancing Network LBN List Box Notification LBN Logical Bearer Number LBO Line Built-Out (Network) LBOT Logical Beginning of Tape LBR Large Business Remote LBR Laser Beam Recording LBR Low Bit Rate LBRDC Low Bit Rate Data Communications LBRM Log-Based Reliable Multicast LBRV Low Bit Rate Voice LBS List Box Style LBS Load Balance System LBT Listen Before Talk (CSMA) LBT Listen Before Transmit LBT CBS Local-Battery Talking, Common Battery Signaling LBUS Line Card Bus LBX Low Bandwidth X LC Inductance/Capacitance LC ISO country code for Saint Lucia LC Last Card LC Leaving Conference LC Line Card LC Line Circuit LC Line Concentrator LC Link Connection LC Link Control LC Link Controller LC Loading Coil LC Local C-plane LC Location Counter LC Locator Collection LC Logical Channel LC Lower Case LCA Life Cycle Assessment LCA Line Concentrating Array LCA Local Calling Area LCA Local Carrier Agent LCA Logic Cell Array (Monolithic Memories Inc.) LCA Logical Channel Assignment LCA Lotus Communications Architecture LCAD Logical Channel Assignment for D-Channel LCAI ISDN Line Concentrating Array LCAMOS Loop Cable Maintenance Operations System LCANUPB Logical Channel Assignment for Nailed-Up B-Channels LCAODP Logical Channel Assignment for On-Demand B-Channels LCAP Local Craftsperson Access Panel LCC Large Cluster Controller LCC Leadless Chip Carrier LCC Life Cycle Cost LCC Line Card Carrier LCC Line Circuit Card LCC Line Class Code LCC Line Control Card LCC Link Control Card LCC Live-Cycle Costs LCC Local Calls Cleared (CSMA) LCC Logical Conference Circuit LCC Longitudinal Check Character LCCC Leadless Ceramic Chip Carrier LCCH Leash Control Channel LCCM LANClient Control Manager LCCT Logical Conference Circuit LCD Least Common Denominator LCD Line Card LCD Line Card Drawer LCD Line Concentrating Device LCD Liquid Crystal Display LCD Local Calls Delayed (CSMA) LCD Loss of Cell Delineation LCD Lost Calls Delayed LCD Lowest Common Denominator LCDR Local Call Detail Recording LCE Line Concentrating Equipment LCE Linear Cable Engine LCE Link Control Entity LCEI ISDN Line Concentrating Equipment LCF Line Control Feature LCF Load Content File LCF Location Confirm LCF Location Confirmation LCF Log Control Function LCFC Load Content File Consolidation LCFS Last-Come First-Served LCFSPR Last-Come First Served Preemptive LCGA Local Carrier Group Alarm LCGI Local Common Gateway Interface LCGN Logical Channel Group Number LCh Logical Channel LCI Local Craft Interface LCI Logical Channel Identifier LCID Locale Identifier LCID Logical Channel Identifier LCIE Laboratoire Central des Industries Electriques (F) LCIS Local Configuration Information Server LCK Lock File LCL Longitudinal Conversion Loss LCM LANDesk Configuration Manager LCM Least Common Multiple LCM Limited Conversation Mode LCM Line Card Multiplexer LCM Line Concentrating Module LCM Line Concentration Module LCM Link Continuity Monitoring LCM Liquid Crystal Module LCM Local Customer Manager LCM Logical Control Module LCM Loopback Coupler Module LCM Lowest Common Multiple LCME Enhanced ISDN Line Concentrating Module LCMI ISDN Line Concentrating Module LCMIP Lightweight CMIP LCMP Line Concentrating Module Processor LCN Local Communication Network LCN Local Communications Network LCN Logical Channel Number LCN Logical Connection Number LCN Loosely Coupled Network (CDC) LCO Landline Cellular Option LCO Line Cutoff LCO Local Coin Overtime LCo Logical Connection LCOM LIU Communication LCOS Liquid Crystal On Silicon LCP Least Congested Path LCP Link Control Procedure LCP Link Control Protocol LCP Local Charging Prevention LCP Local Control Point LCR Least Cost Routing LCR Line Concentration Ratio LCR Locating Channel Receiver LCR Lowest Cost Routing LCRF Local Connection Related Function(s) LCS Large Capacity Storage LCS Line Connection Subsystem LCS Location Services LCS Longest Common Subsequence LCS Lotus Communications Server LCSE Logical Channel Signalling Entity LCSMA-CD Local CSMA-CD LCSP Limited Cluster Server Process LCSU Local Concentrator Switching Unit LCT Laboratoire Central de Telecommunications LCT Last Compliance Time LCT Last Conformance Time LCTC Liquid Crystal Timing Controller LCU Last Cluster Used LCU Line Concentrating Unit LCU Link Control Unit LCUT Line Card Under Test LCV Line Code Violation LCV Line Coding Violation(s) LD Laser Diode LD Laser Disk LD Line Diagram LD Line Drawer LD Linker Directive LD Loaded LD Location Directory LD Logical Drawer LD Long Distance LD Long Duration LD Loop Detect LD Loop Disconnect LD Low Density LDA Logical Device Address LDAE Long Distance Alert Enhancement LDAP Lightweight Directory Access Protocol LDB Local Database LDB Location Database LDC Less Developed Country LDC Line Drawer Controller LDC Linear Divider and Combiner LDC Long Distance Carrier LDC Long Duration Call LDCELP Low Delay Codebook Excited Linear Prediction LD-CELP Low-Delay Code Excited Linear Prediction LDCM LANDesk Client Manager LDD Lightly Doped Drain LDD Linear Delay Distortion LDDCDDN LAPD D-Channel Default DN LDDCDN LAPD D-Channel Directory Number List LDE Long Duration Events LDF Linear Display File LDI Long Distance Indicator LDIF LDAP Data Interchange Format LDM Legacy Data Module LDM Limited Distance Modem LDM Linear Delta Modulation LDM Logical Data Model LDM Logical Device Manager LDMS LANDesk Management Suite LDN Listed Directory Number LDN Local Directory Number LDN Local Distinguished Name LDP Label Distribution Protocol LDP Linux Documentation Project LDR Light-Dependent Resistor LDR Line Driver-Receiver LDR Local Distribution Radio (Micro-Wave Telecom.) LDR Local Dump and Restore LDR Local Dynamic Routing LDRI Low Data Rate Input LDS Landesamt fur Datenverarbeitung und Statistik LDS Lightguide Distribution System LDS Local Digital Switch LDS Local Distribution System LDS Logic Design System LDS Logical Data Set LDS Long Distance Signal LDS Lower Data Strobe LDSH Logical Data Set Header LDST Logical Data Set Trailer LDSU Local Digital Service Unit LDT Line Appearance on a Digital Trunk LDT Link Diversion Transactor LDT Local Descriptor Table LDT Location Determination Technology LDTA Long Distance Telecommunications Administration LDTA Long Distance Telephone Administration LDTR Local Descriptor Table Register LDTS Low Density Telephony Service LDTV Low-Definition Television LDU Line Drawer Unit LDU Long Distance Usage LDU Low Speed Data Unit LDX Long Distance Xerography LE LAN Emulation LE Late Entry (TETRA) LE Less Than or Equal To LE Line Equipment LE Linear Executable LE Link Engine LE Linkage Editor LE Little-Endian LE Local Echo LE Local Exchange LE Loop Extender LE1 Link Engine, Type 1 LEA LATA Equal Access LEA Line Extender Amplifier LEAF Law Enforcement Access Field LE-ARP LAN Emulation Address Resolution Protocol LEAS LATA Equal Access System LEC LAN Emulation Client LEC Light Energy Converter LEC Liquid Encapsulated Czochralski LEC Local Exchange Carrier LECID LAN Emulation Client Identifier LECS LAN Emulation Configuration Server LED Light Emitting Diode LED Light Emitting Diode LEDA Light Emitting Diode Array LEM Logical End of Media LEMP Lightning ElectroMagnetic Pulse LEN Length LEN Line Equipment Number LEN Local Exchange Network LEN Local Exchange Node LEN Logical Entity Number LEN Low-Entry Networking LEN Low-Entry Networking (SNA) LENNI LAN Emulation Network-to-Network Interface LEO Local End Office LEO Low-Earth-Orbit (satellites) LEOS Lasers and Electro-Optic Society LEOS Low Earth Orbit Satellite LEOSAT Low-Earth-Orbit Communications Satellite LEP Large Electron Positron LEP Light-Emitting Polymer LEQ Link Emission Queuing LER Label Edge Router LERG Local Exchange Routing Guide LES LAN Emulation Server LES Land Earth Station LES Line Errored Second(s) LES Load ES Register (80x86 inst) LET Line Equipment Transfer LET Link Establishment Time LETB Local Exchange Test Bed LETI Laboratoire d'Electronique et des Techniques de l'Information (F) LEV Loader/Editor/Verifier LEx Link Engine, Type x LEX Local Exchange Lf feeding inductor LF Line Feed (ASCII Character) LF Line Filter LF Line Finder LF List File LF Logical Facility LF Low Float LF Low Frequency (30...300 kiloHertz) LFA Line Feature Action LFA Loss of Frame Alignment LFACS Loop Facility Assignment and Control System LFAQ Less Frequently Asked Questions LFB Look for Busy LFB Look-Ahead for Busy LFC Link FBUS Controller LFC Local Functional Capability(ies) LFD Line Fault Detector LFE Log Front End LFN Long Fat Network LFN Long Filename LFO Low Frequency Operation LFPM Linear Feet Per Minute LFS Link Fault Sectionalization LFS Log File Service LFS Logical File System LFS Log-Structured File System LFSE Linear Fractional Spaced Equalization LFSR Linear Feedback Shift Register LFU Least Frequently Used LFU Link Forced Uninhibit message LG DDOC Section: Log Reports LG LetterGram LG Link Group LG Logic Ground LGA Laser Gate Array LGA Leadless Grid Array LGA Line Group Array LGAI ISDN Line Group Array LGC Line Group Controller LGCI ISDN Line Group Controller LGCO Offshore Line Group Controller LGCOI ISDN Offshore Line Group Controller LGCOi ISDN Offshore Line Group Controller LGE Line Group Equipment LGEI ISDN Line Group Controller Equipment LGN Logical Group Node LGP Link General Processor LGPL Library General Public License LH Line Hunting LH Link Handler LH Link Header (SNA) LH Local Host LH Long Haul LHB Limited-Hard-Blocking LHC Left-Hand Circular Polarization LHP Local Host Processor LHS Left Hand Side LHT Long Holding Time LHT Long-Haul Transoceanic LI ISO country code for Principality of Leichtenstein LI Leap Indicator LI Length Indication LI Length Indicator LI LIaison li Line LI Line Identity LI Line Interface LI Lines View LI Link Interface LI List Item (HTML tag) LI Loader Information LI Local Interface LI Logical Indications LIA Link Inhibit Acknowledgment message LIB Label Information Base LIB Library lib Library LIB Library File LIB Object Code Library LIB Run-Time Library LIC Line Interface Card LIC Linear Integrated Circuit LIC Link Identification Code LIC Links Command LIC Lowest Incoming Channel LID Link ID LID Link IDentification code LID Link Inhibit Denied message LIDA Load- and Interference-Based Demand Assignment LIDAR LIght Detection And Ranging LIDB Line Information Database LIDF Line Intermediate Distribution Frame LIDT Load Interrupt Descriptor Table Register (80x86 inst) LIF Layer Interface LIF Length Indicator Field LIF Lifetime Television LIF Logical Interchange Format LIF Logical Interface LIF Logical Interface Transactor LIF Low-Insertion Force (IC-Sockets) LIFE-911 Location Information for Enhanced 911 LIFO Last-In First-Out LIFO Last-In, First-Out LIH Last Image Hold (Video) LII Location Independent Invocation LIJ Leaf Initiated Join LIJP Leaf Initiated Joint Parameter LILO Last-In, Last-Out LILO Linux Loader LILO Look-In/Look-Out LIM (Power) Line Isolation Monitor LIM Call Limiter LIM Language Interface Module (HLLAPI) LIM Line Interface Module LIM Load Information Manager LIM Lotus/Intel/Microsoft LIMDO Light Intensity Modulation-Direct Overwrite LIMS Lotus- Intel- Microsoft LIN Line Index Number LIN Link Inhibit message LIN Listing Index Number LINC Legacy Internetworking Capability LINC Localized Intelligent Network Control LINC Long Term Intelligent Network Controller LINCMOS LINear Complementary Metal Oxide Semiconductor LINE Line Maintenance LINFO Linker Information LInh Local Inhibit LINK Encoded Link Register LINPACK LINear equations software PACKage (test for PC) LION Line Information for Open Networks LION Listing Information for the Open Network LION Local Integrated Optical Network LION LPS Line Information for Open Networks- Line Profiling System LIP Large Internetwork Packet lip Local Interested Party LIPC Long Interprocessor Communication LIPS Library of Image Processing Software LIPS Logical Inferences Per Second LIS Library and Information Science LIS Line Interface Shelf LIS Logical IP Subnetwork LIS Lot Identification System LISA Large Installations Systems Administration LISA Local Integrated Software Architecture LISA Localization Industry Standard Association LISB Lithium Ion Storage Battery LISN Line Impedance Stabilization Network LISP Limited Instructions Set Processor LISP List Processing LISP LISt Processing language LISU Local Integrated Switching Unit LIT Line Insulation Test LIT Link Local Inhibit Test message LIT Literal Text (HTML tag) LIT Local Intelligent Terminal LIU LAN Interface Unit LIU Link Interface Unit LIU7 CCS7 Link Interface Unit LIU-COM Link Interface Unit- Communication LIV Link Integrity Verification LIW Long Instruction Word LJ LaserJet LK ISO country code for Democratic Socialist Republic of Sri Lanka LK Line Key LK Link LK Looking for Party LKDO Locked Out LKED LinKage EDitor LL Land-Line LL Leased Line LL Line Leg LL Link Layer LL Link Level LL Local Loopback LL Long Lines LL Lower Layer LL Low-Low LL Low-Low Algorithm LL Lunchtime Learning LLA Link Level Access LLA Logical Layered Architecture LLA Low Level Access LLAR Local Line Automatic Routing LLAR Local Loop Access Ring LLB Latching Loop Back LLB Latching Loopback LLB Line Loopback LLB Local Loopback LLBE Latching Loopback Enabled LLC Limited Liability Company LLC Line Load Control LLC Link Layer Control LLC Logical Link Connection LLC Logical Link Control LLC Low Layer Capabilities LLC Low Layer Compatibility LLC Lower Layer Compatibility LLCDBL1 Low-Layer Compatibility Information Delivery Billing Records (Intranetwork) LLCDBL1P Low-Layer Compatibility Information Delivery Billing Records (Intranetwork) for PRI LLCDBL2 Low-Layer Compatibility Information Delivery Billing Records (Internetwork) LLCDBL2P Low-Layer Compatibility Information Delivery Billing Records (Internetwork) for PRI LLCDU LLC Data Unit LLCIT Low Layer Compatibility Information Transfer LLCP Link Layer Core Parameters LLCT Local Line Connected Terminal (TETRA) LLD Logical Line Drawer LLD Low-Level Driver LLDN Local Line Distribution Network LLDR Low-Level Design Review LLE Large Local Exchange LLE Long Line Equipment LLF Line Link Frame LLF Low Layer Function(s) LLF Low-Level Format LLF Low-Level Formatting LLFSQ Link Layer Frame Sequencing, LAPB LLFSQX75 Link Layer Frame Sequencing for X.75 LLI Link Local Inhibit Signal LLI Logical Link Identifier LLI Low-Layer Information LLID Low-Level Identifier LLL Low-Level Language LLLTV Low Level Light Television LLM L-band Land Mobile LLM Logical Link Manager LLME Lower Layer Management Entity LLN Line Link Network LLN Logical Link Number LLNL Lawerence Livermore National Laboratory LLP Line Link Pulsing LLP Link Layer Protocol LLPP Link Layer Protocol Parameters LLS LAN-Like Switching LLS Link Layer Software LLSC Link Set Control LLSU Low Level Signaling Unit LLWS Link Layer Window Size, LAPB LLWSX75 Link Layer Window Size for X.75 LM Layer Management LM Layer Management LM Leg Multiple LM Line Mode LM Line Module LM Line Multiplexer LM Linear Multicast LM Line-Monitoring LM Link Manager LM Link Monitor LM Load Monitor LM Local Member LM Location Manager Lm Low-Mobile Channel lm lumen Lm Traffic channel with capacity lower than Bm LMA Local Mean Attenuation LmAN Limited LAN (low cost/performance LAN) LMAN Load Management LMAP Lower Mapping Module LMB Left Mouse Button LMB Line Module Busy LMB Lower Middle Byte LMC Line Module Controller LMC Loop Maintenance Center LMC LSI Messaging Card LMCS Local Multipoint Communications System LMCUT Line Maintenance Cutover LMD Line Module LMDS Local Multichannel Distribution Services LMDS Local Multipoint Distribution Service LMDS Local Multipoint Distribution System LME Layer Management Entity LME Line Module Equipment LME Line Monitoring Equipment LME LM Ericsson LMES Land Mobile Earth Station Lmest Sidetone path loss LMF Language Media Format LMI Laser Module with Isolator LMI Layer Management Interface LMI Link Management Information LMI Link Management Interface LMI Local Management Interface LMMP LAN/MAN Management Protocol LMMS Local Message Metering Service LMOS Loop Maintenance Operations System LMP LAN Management Protocol (IBM) LMP Layer Management Protocol LMP Local Management Protocol LMPS Land Mobile Products Sector (Motorola) LMR Land Mobile Radio LMRQAS Land Mobile Radio Quality Assurance Scheme LMS Land Mobile Satellite LMS Least Mean Squares (Algorithm) LMS Level Measuring Set LMS License Management Services LMS Line Monitoring System LMS Local Measured Service LMS Local Message Switch LMS Location and Monitoring Services LMS Logical Messages LMS Lotus Messaging Switch LMSC LAN-MAN Standards Committee LMSI Local Mobile Station Identity LMSK Level-controlled Minimum-Shift Keying LMSP Local Message Switch Processor LMSS Land Mobile Satellite Service LMT Lightwave Microcell Transceiver LMT Local Maintenance Terminal LMT Local Mean Time LMU LAN Management Utilities LMU LAN Manager for UNIX LMU Line Monitoring Unit (ATT) LMU Local Message Unit LMWS Licensed Millimeter-Wave Service LMX Link Multiplexer LMX L-type Multiplex LN Line LN Line Number LN Load Number LN Local Network LN Local Number LN Logical Network ln natural logarithm LNA Local Network Architecture (IBM Inc.) LNA Local Numbering Area LNA Low Noise Amplifier LNB Low Noise Block (down converter) LNB Low-Noise Block LNC Layer Network Coordinator LNC Local Node Clock LNC Local Node Control LNC Low Noise Converter LND Last Number Dialed LND Local Number Dialed LNI Line Interface LNI Line Number Identification LNI Local Network Interface LNK Shortcut (Link) File LNLS Layered Networks' Integrated Services LNM Linefeed/Newline Mode LNN Logical Network Number LNNI LAN Emulation Network-to-Network Interace LNNI LANE NNI LNP Local Number Portability LNR Last Number Redial LNr Leitungsnummer (Line Number) LNR Low Noise Receiver LNRA Last Number Redial Associated with Set LNS L2TP Network Server LNS Lines LNS Lines Maintenance Subsystem LNW Local NetWork LNX Low Noise high stability block downconverter LO Lamp Only LO Learning Organization LO Link Option LO Local Origination LO Local Oscillator LO Lockout LO Low Priority LO Lower Order LOA Letter of Agency LOA Library Object Adapter LOB Line of Business LOC Lines of Code LOC Linked Object Code LOC Local LOC Local End, No NUI LOC Localizer LOC Locality LOC Location LOC Location Number LOC Loss of Clock LOC Loss of Continuity LOC Lowest Incoming Channel LOC Lowest Outgoing Channel LOCAP Low Capacitance cable LOCN Location LocNo Location Number LOCNUI Local End, NUI Recorded LOCOS LOCal Oxidisation of Silicon (IC Technology) LOCREQ Location Request message LOD Level of Detail LOD Line Overflow to Directory Number LODA Local Optimized Dynamic Assignment LOF List of Figures LOF Loss of Frame LOF Loss of Framing LOF Lowest Observable Frequency LOFA Loss Of Frame Alignment LOG Call Logging Log Logarithm to the base 10 LOGAL LOGical ALgorithmic language LOH Line Overhead LOI Letter Of Intend LOL Laughing out loud LOLA LOTOS LAboratory LOM Local Operations Manager LONAL Local Off-Network Access Line LONESL List of Non-Empty SNO Lists LOO Likelihood Of Occurrence LOOPUS geostationary LOOPs in orbit occupied permanently by Unstationary Satellites LOP Line of Product LOP Loop Optical Carrier LOP Loss of Pointer LOP Loss of Power LOP Lower Order Path LOPA Lower Order Path Adaptation LOPSN Lower Order Path Sub-Network LOPT Lower Order Path Termination LOR Line Overflow to Route LOR Logical Object Reference LORAN Long Range Navigational System LORE Logic Oriented Repair Environment LOS Line Of Side LOS Line Out of Service message LOS Line-of-Sight LOS Loss Of Signal LOSDG Loss of Signal/Loss of Synchronization Word with Dying Gasp LOSNDG Loss of Signal/Loss of Synchronization Word with No Dying Gasp LOST Local Originating Station Treatment LOST Lost Message LOSW Loss Of Synchronization Word LOT Lapped Orthogonal Transform LOT List of Tables LOTOS Language for Temporal Ordering Specification LOTOS Language of Temporal Ordering Specifications LOUISA Lunar Optical-Ultraviolet-Infrared Synthesis Array LOVC Lower Order Virtual Container LOW Low-Overhead Wakeup LP Language Processing LP Licensed Product LP Line Printer LP Linear Prediction LP Linear Program LP Linear Programming LP Link Processor LP Local Packing LP Local Processor LP Logical Port LP Logical Processsor LP Long (radio) Path LP Long Playing (record) lp Long pointer LP Longitudinal Parity LP Loop LP Loss Priority LP Low Pass (filter) LP Low Priority LPA Linear Power Amplifier LPA Logical Page Address LPA Loop Back Acknowledgment message LPA Loudspeaker Paging Access LPA Lower-order Path Adaptation LPAM Line Power and Alarm Module LPAS Linear Prediction Analysis-by-Synthesis LPB Link Interface Paddle Board LPBK Loopback LPBK Loopback Trunk LPC Linear Prediction Coding (Speech Synthesis) LPC Linear Prediction Coefficient LPC Linear Predictive Code LPC Linear Predictive Coder LPC Linear Predictive Coding LPC Local Port Controller LPC Local Procedure Call LPC Loop Provisioning Center LPC Lower-order Path Connection LPCS Licensed Personal Communications System LPCVD Liquid Phase Chemical Vapor Deposition LPCVD Low Pressure Chemical Vapour Deposition (IC Technology) LPD Line Printer Daemon LPD Link Protocol Discriminator LPD Loop Timed LPD Low Power Device (transmitter) LPD Low Proability Detection LPDA Link Problem Determination Aid (IBM) LP-DDCA Local Packing Dynamic Distributed Channel Assignment LPDU Link Protocol Data Unit LPE Layout Parameter Extraction LPF Low Pass Filter LPI Lightning Protection unit lpi Lines Per Inch LPI Lines Per Inch LPIC IntraLATA PIC LPIC Local Primary Intra-LATA Carrier LPIC Per-Line Primary InterLATA Carrier LPIF L-Bus/P-Bus Interface LPII Line Privileges Information Indicator LPLF Least Power Level First LPLMN Local PLMN LPM Linearly Polarized Mode LPM Lines Per Minute LPM Linux Projects Map LPM Logical Port Multiplexer LPN Local Packet switched Network (BOC) LPO Local Processor Outage LPP Licensed Program Product LPP Lightweight Presentation Protocol LPP Link Peripheral Processor LPR Line Printer LPR Line Printer Requester LPR Line-Protected Ring LPRA Low Power Radio Association LPRI Loss Priority LPS Lightning Protection System LPS Line Profiling System LPS Local Processor SRAM LPS Low Power Satellite (...50W) LPS Low-Power Schottky lpsz Long pointer to a string terminated by a zero byte LPT Line Printer LPT Logical Processor Type LPT Lower-order Path Termination LPTS Loop Time Slot LPTV Low Power Television LPU Line Processing Unit LPU Link Processing Unit LPV Lowest PVC LPVS Link Packet Voice Server LPWA Lucent Personalized Web Assistant LQ Letter Quality LQA Line Quality Advisor LQM Line Quality Manager LQM Link Quality Monitoring LQN Line Quality Network LQP Letter-Quality Printer LR ISO country code for Republic of Liberia LR Last Record LR Link Register LR Location Register LR Logic Return LR Long Reach LR Loudness Rating LRA Line Reversal on Answer LRAM Local RAM LRB Loop Reverse Battery LRC Layout-Rule Check (IC Design) LRC Learning Resource Center LRC Line Restriction Code LRC Local Routing Center LRC Longitudinal Redundancy Check LRC Lost Record Count LRCC Longitudinal Redundancy Check Character LRCF Location Registration Control Function LRD Long Route Design LRDF Location Registration Data Function LRDI Line Remote Defect Indication LRE Logic Return Equalizer LRE Low Rate Encoding LRE Low Rate Encoding LRF Location Registration Function LRFSM Location Registration Function State Model LRGP Loudness Rating Guarding Position LRI Link Remote Inhibit Test Signal LRJ Location Reject LRM Language Reference Manual LRM Least Recently used Master LRM Local Receiver Module LRMPS Local-to-Remote Maximum Packet Size LRN Local Reference Number LRN Location Routing Number LRPC Lightweight Remote Procedure Call LRQ Location Request LRR Learning With Random Routing LRS Line Reversal on Seizure LRTC Local-to-Remote Throughput Class LRU Least Recently Used LRU Least Replaceable Unit LRU Line Remote Unit LRU Line Resource Unit LS ISO country code for Kingdom of Lesotho LS Least Significant LS Letter Shift LS Line Station (TETRA) LS Line Subgroup LS Line Switch LS Link Set LS Link State LS Link Switch LS Local Single-Layer LS Local Switch LS Locking Shift LS Loop Start LS LoudSpeaker LS Low Speed LS(0/1) Link Status bits LSA Link State Advertisement LSA Local Security Authority LSA Low Speed Adapter LSA Low-Speed Access LSA RC Low Speed Access Resource Complex LSAC Signaling Link Activity Control LSAP Link Layer Service Access Point LSAP Link SAP LSAP LLC Service Access Point LSAPI License Server API LSAPI License Service API LSAS Line Side Answer Supervision lsb Least Significant Bit LSB Least Significant Bit (byte) LSB Lower Sideband LSB Lower SideBand LSC Large Scale Configuration LSC Large System Configuration LSC Line Screening Code LSC Link State Control LSC Link State Controller LSC List Search Call (TETRA) LSC Location Service Center LSC Logical Signaling Channel LSC Loopback Select Code LSCC Local Servicing Control Center LSCNB LIDB-Specified Called Number Blocking LSCP Low-Speed Card Punch LSD Least Significant Digit LSD Least Significant Digit LSD Line Signal Detector LSD Line-Sharing Device LSD Low Speed Data LSDA Signaling Data Link Allocation LSDB Link State Database LSDB Listing Services Database LSDB Load Sharing Database LSDBMS Listing Services Database Management System LSDS Standby Data Link Selection LSDU Link Layer Service Data Unit LSDU Link Service Data Unit LSDU Link Service Data Unit LSDU Low Speed Data Unit LSE Language Sensitive Editor LSE Line Signalling Equipment LSE Local Single-Layer Embedded LSE Loop Signaling Equipment LSES Line Severe Errored Second(s) LSF Line Spectral Frequency LSF Line Spread Function (Imaging) LSF Line Switch Frame LSF Load Sharing Facility LSG Line Subgroup LSH Least Significant Half Word LSI Large-Scale Integration LSI Line Side Interface LSI Load Status Information LSI Low Speed Interface LSID Local Session Identification LSL Link Support Layer LSL Linux System Labs LSL Load Segment Limit LSL Local Serial Link LSLA Signaling Link Activation LSLD Signaling Link Deactivation LSLR Signaling Link Restoration LSM Limited Size Messaging LSM Line Switch Marker LSM Link Set Management LSM Link Status Message LSM Linux Software Map LSMS Local Service Management System LSO Line Signalling Oscillator LSO Local Serving Office LSOA Local Service Order Administration LSP Label Switched Path LSP Link State Packet LSP Link-State PDU LSP Liskov Substitution Principle LSP Listing Services Platform LSP Local Service Provider LSP Logical Service Port LSP Loudspeaker Paging LSPI Local Service Provider Identification LSPID Local Service Provider ID LSPK Loudspeaker LSPP Local Service Provider Portability LSPTR Low-Speed Paper Tape Reader LSR Label Switch Router LSR Label Switching Router LSR Leaf Setup Request LSR Loose Source Route LSR Loose Source Routing LSROS Limited Size Remote Operation Services LSRPA Loudspeaker and Radio Paging Access/Answerback LSRR Loose Source and Record Route LSS Laboratory Support System LSS Link Status Signal LSS Loop Switching System LSSD Level-Sensitive Scan Design (IC) LSSGR LATA Switching Systems Generic Requirements LSSGR Local Switching Systems General Requirements (obsolete meaning) LSSU Link Status Signal Unit LSSU Link Status Signal Unit LST Laplace-Stieltjes Transform LST Listing LST Listing File LST Local Symbol Table LSTA Signaling Terminal Allocation LSTDN Listed Directory Number LSTP Local Signal Transfer Point LSTR Listener Sidetone Rating LSTTL Low-power Schottky Transistor-Transistor Logic LSU LAN Service Unit LSU Leading Signal Unit LSU Line Shelf Unit LSU Line Sub-Unit LSU Local Support Unit (viz CSU) LSU Local Switching Unit LSU Lone Signal Unit LSV Line Status Verifier LSV Low Speed Variant LSW Least Significant Word LSZH Low Smoke Zero Halogen LT ISO country code for Lithuania LT Lab Trial LT LATA Tandem LT Less Than LT LeTter LT Line Terminal LT Line Termination LT Link Trailer LT Local Tandem LT Logical Terminal LT Logical Tuple LT Long-Term LT Low Tension LT Low Tone LT Lower Tester LT Lucent Technologies LTA Line Test Access LTA Load-Transfer-Acknowledgement signal LTA Local Transport Address LTA Long Term Architecture LTAP Logical Terminal Access Privileges LTB Last Trunk Busy LTC Line/Trunk Controller LTC Local Test Cabinet LTC Longitudinal Time Code (VTR) LTC Lowest Two-way Channel LTCCS Last Trunk CCS LTCF Lower Tester Control Function LTCI ISDN Line/Trunk Controller LTCLASS Logical Terminal Class LTCO Line/Trunk Controller Offshore LTCP Lower Tester Communication Point LTCT LATA Tandem Connection Trunk LTD Licensed-In Technology Directory LTD Local Telecom Division (Sprint) LTD Local Test Desk LTE Line Terminal Equipment LTE Line Terminating Equipment LTE Line Termination Equipment LTE Line Trunk Equipment LTE Linear Transversal Equalizer LTE Lite Terminating Equipment LTE Local Terminal Emulator LTEI ISDN Line Trunk Equipment LTF Long-Term Failure LTF Loop Testing Frame Ltg Leitung (Line) LTG Line Treatment Group LTG Line/Trunk Group LTG Logical Terminal Group LTGRP Logical Terminal Group LTH Line and Trunk Hunting (supplementary service) LTID Local Trunk Identification LTID Logical Terminal Identifier LTIP Long-Term Investment Plan LTL Local/Toll Services LTL Lunchtime Learning LTLI Local/Toll Services International LTLS Lunch Time Learning Session LTM Line and Trunk Maintenance LTNUM Logical Terminal Number LTOM Less Than One Minute LTORG Literal Pool Origin LTOS Less Than One Second LTP Line and Trunk Peripherals LTP Line Test Position LTP Line Trunk Peripheral LTP Local Test Position LTP Long Term Prediction LTR Load Task Register (80x86 inst) LTR Load Transfer LTR Load-Transfer signal L-TRIB Link-Transfer Rate of Information Bits LTRS LeTteR Shift LTS Labelled Transition System LTS Laboratory Test System LTS Library of Test Specification LTS Lightwave Telecommunication System LTS Line Traffic Simulator LTS Line Trunk Server LTS Long-Term Storage LTS Loop Test System LTS Loop Testing System LTT Line Termination Type LTU Line Terminating Unit LTU Line Test Unit LTU Lower Test Unit LTUA Line Test Unit, Analog LTUD Line Test Unit, Digital LTUMF Loss of TU Multiframe LU ISO country code for Grand Duchy of Luxembourg LU Line Unit LU Linux Universe LU Living Unit LU Local Units LU Location Update LU Location Updating lu Logical Unit LU Logical Unit (IBM-SNA) LUA Link Uninhibit Acknowledgment message LUA Logical Unit Application LUF Line Unit Failed LUF Lowest Usable Frequency (Short Wave Propagation) LUG Linux User's Group LUH Logical Unit Handler LUI Line-by-Line User Interface LUID Locally Unique Identifier LULT Line Unit/Line Termination LUN Link Uninhibit message LUN Logical Unit Number LUNI LAN Emulation User-Network Interface LUNI LANE UNI L-UNI LAN Emulation User-to-Network Interface LUNT Line Unit Network Termination LUNT Line Unit/Network Termination LUP Location Update Protocol LUP Logical User Port LUT Lookup Table LUT Look-Up Table LUTI Line Unit T Interface LUTS Locked-Up Trunk Scan LUX Lbus to Xlbus ASIC LV ISO country code for Latvia LV LaserVision LV Length and Value LV List Volumes LV Logical Volume LV Low Voltage LVA List Viterbi Algorithm LVC Logical Virtual Circuit LVC Low-Order Virtual Container LVD Low Voltage Directive LVD Low Voltage Disconnect LVDT Linear Variable Differential Transformer LVIC Liquid crystal display Video Interface Controller LVL Level LVM Leave Message LVM Logical Volume Manager LVR Low Voltage Reconnect LVR Low Voltage Relay LVS Layout vs. Schematic LVS Local Video Server LVT Link Verification Transactor LVX LAN/WAN Exchange LW Leave Word LW Lightwave LW Long Wave (100...500 kiloHertz) LW Long-Wavelength LWA Light Wire Armor LWA Light Wire Armored LWC Leave Word Calling LWE Lower Window Edge LWER Lightweight Encoding Rules LWI Logical Work Item LWL LichtWellenLeiter LWP Library for WWW Access in Perl LWP Lightweight Process LWP Logical Work Processor LWT Listen While Talk LWT Listen While Talk (CSMA/CD) lx lux LXP LSI Crospoint LY ISO country code for Libya LZ Landing Zone LZ Lempel-Ziv LZW Lempel-Ziv-Welch
M Magenta
M Maintenance
M Management
M Manager
M Mandatory
M Mantissa
M Mega (10+6 or 1024*1024)
M Member
M Memory
m Meter(s)
M Million
M Modified
M Modifier
M Monitor
M Monitor Bit
m Monospace
M More
M More Data
M Multiframing
M OSI Management Service
M&C Mapping and Coordination
M&HIRS Multimedia and Hypermedia Information Retrieval Services
M&P Methods and Procedures
M/IO Memory/IO
M/O Mandatory/Optional
M/QPR Modified/Quadrature Partial Response
M/S Master/Slave
M/U Multi-User
M/W Microwave
M2M Manager-to-Manager
MA ISO country code for Kingdom of Morocco
MA MAC Layer Service
MA Maintenance Action
MA Maintenance Attendant
MA Major
MA Management
MA Media Adaptor
MA Medium Adaptor
MA Memory Administration
MA Message Analysis
MA Message Analyzer
MA Metropolitan Area
mA Milliampere(s)
MA MJU Alert
MA Mobile Allocation
MA Moving-Average
MA Multiple Access
MA My Address
MA U.S. postal code for Massachusetts
M-A Manager-Agent
MA OA Memory Administration Operations Application
MA&E Market Awareness and Education
MAANR Management-and-Abnormal
MAC Machine Administration Center
MAC Macintosh
MAC MACRO-11 File
MAC Maintenance Action Client
MAC Mandatory Access Controls
MAC Mandatory Authorization Code Collection
MAC Measurement and Analysis Center
MAC Media Access Control
MAC Medium Access Control
MAC Memory Administration Center
MAC Message Authentication Code
MAC Message Authenticity Check
MAC Mobile Attenuation Code
MAC Moves, Adds, and Changes
MAC Multiple Access Control
MAC Multiplexed Analog Components
MAC Multiplier-Accumulator Chip
MAC Multiply Accumulate
MAC Multiply-Accumulate
MAC Multipurpose Access Client
MACA Mobile-Assisted Channel Allocation
MACA Mobile-Assisted Channel Assignment
MACD Meridian Automatic Call Distribution
MACE Macintosh Audio Compression/Expansion
MACF Multiple Association Control Function
MACN Mobile Allocation Channel Number
MACR Modified Allowed Cell Rate
MACRO Machine Assembled Code for Routine Operations
MACS Meeting Access and Control System
MacSRP Macintosh Software Release Package
MACSTAR Multiple Access Customer Station Rearrangement
MAD Michigan Algorithmic Decoder
MADE Manufacturing and Automated Design Engineering
MADN Multiple Appearance Directory Number
MADO Meridian Asnchronous Data Option
MADS Maintenance And Diagnosis System
MADS Multiple Access Data System
MAE Mac Emulator Environment
MAE Macintosh Application Environment
MAE Merchant Asic Engineering
MAE Message Addressable Entity
MAE Message Arrival Element
MAE Metropolitan Area Exchange
MAF Management Application Function
MAF Minimum Audible Field
MAF Mobile Additional Function
MAF Multiple Access Facility
MAFF Market Access Fact Finding
MAG Metropolitan Area Gateway
MAGIC Multidimensional Applications and Gigabit Internetwork Consortium
MAH Mobile Access Hunting (supplementary service)
MAHD Mobile Assisted Handoff Denied
MAHO Mobile Assisted Handoff
MAHO Mobile Assisted Handover
MAI Magellan Access Integrator
MAI Mobile Allocation Index
MAI Multiple Access Interface
MAI Multiple Access Interference
MAID Maidenhead
MAINT Maintenance
MAIO Mobile Allocation Index Offset
Maj Major
MAK Make File
MAL Application Layer-Management Entity Interface
MAL Mobility Adaptation Layer
MALSAN Maximum Authorised Length of Subaddress Accepted by Network
MAMI Modified Alternate Mark Inversion
MAMSK Multiamplitude Minimum Shift Keying
MAMSK Multi-Amplitude Minimum Shift Keying
MAN Manual
MAN Manual Line
MAN Metropolitan Area Network
MAN Multiple Area Network
MAN SIG MANagement Special Interest Group (OSF)
ManB Maintenance Busy
MANB Manual Busy
ManB Manual Busy
MANIAC Mechanical And Numerical Integrator And Computer
MANIC MANufacturer Identity for Cordless fixed part and Cordless portable part
MAO Maintenance, Administration and Operations
MAOA Memory Administration Operation Application
MAOS Memory Administration Operations System
MAP Maintenance and Administration Position
MAP Maintenance-Analysis Procedure
MAP Management Application Process
MAP Management Assessment Program
MAP Manufacturing and Planning
MAP Manufacturing Automation Protocol
MAP Maximum A Posteriori Adaptation
MAP Mediated Access Point
MAP Medium Access Protocol
MAP Microelectronics Application Project
MAP Minimum Acceptable Performance
MAP Mobile Application Part (GSM 09.02)
MAP Mobile Application Part (SS7)
MAP Multi-Aspect PAD
MAPCI MAP Command Interpreter
MAPDU MA Protocol Data Unit
MAPDU Management-Application Protocol Data Unit
MAPI Messaging Application Programming Interface
MAPI Microsoft Application Programming Interface
MAPOS Multiple Access Protocol Over SONET/SDH
MAQ Message Arrival Queue
MAR Memory Address Register
MAR Multialternate Route
MAR Multialternate Routing
MARC Machine Readable Cataloguing
MARCH Bellcore operations support system for
Memory Administration/Recent Change of SPCS administrable data
(Bellcore trademark)
MARECS MARitime European Communications Satellite
MAROTS MARitime Orbital Test Satellite
MARPAL Marseilles-Palo submarine cable
MARS Message Archiving and Retrieval Service
MARS Multicast Address Resolution Server
MARS Multipurpose Access Remote Server
MARTEL Marseilles-Tel Aviv submarine cable
MAS Managed Access System
MAS Management Application System
MAS Mass Announcement System
MAS Mass Calling
MAS Memory Administration System
MAS Meridian Attendant Service
MAS Mobile Access Station
MAS Muenzanschluss (Prepayment Terminal)
MAS Multimedia Applications Support
MAS MAP Application Service (IBM)
MASA Main Store Arrays
MASC Main Store Controller
MASC MOBITEX Asynchronous Communications User Interface
MASE Message Administration Service Element
MASER Microwave Amplification by Stimulated Emission of Radiation
MASI Multimedia Application/Services Interface
MASK Logical Mask Immediate (88100 inst)
MASM Microsoft Assembler
MASQ Meridian Attendant Service Queueing
MASR Memory Address Select Register
MASS Multiple Access Sequential Selection
MAT Machine-Aided Translation
MAT Meridian Administration Tools
MAT Metropolitan Area Trunk
MATD Maximum Acceptable Transit Delay
MATD Maximum Allowable Transit Delay
MATE Modular Automatic Test Equipment
MATES Management of Training and Expertise System
MATH Matheson
MATM Multiple Area Transfer Mode
MATSE Mobile Automatic Telephone System (F)
MATV Master Antenna TeleVision system
MAU Mathematical Acceleration Unit (Floating-Point Co-Processor)
MAU Media Access Unit (IEEE 802)
MAU Media Attachment Unit
MAU Medium Attachment Unit
MAU Memory Access Unit
MAU Multiple Access Unit
MAU Multistation Access Unit (token ring/IBM)
MAVT Mobile Audio-Visual Terminal
MAX Cinemax
MAX Maximum
MAX Media Access Exchange
MAXCR Maximum Number of Non-Call-Associated Call Reference Values
MAXIT Maximum Interference Threshold
MAXS Metallic Automated Cross-Connect System
MAXTRIG Maximum Trigger Count
MAZ MagnetAufZeichnung
MB Macro Block
MB Macroblock
MB Magnetband (Magnetic Tape)
MB Mail Box
MB Mailbox
MB Main Battery
MB Maintenance Busy
MB Make Busy
MB Manual Busy
MB Medium Band
MB MegaBit
MB Megabyte
MB Message Box
MB Message Buffer Size
MB Moon Bounce
MB Motherboard
MB Postal code for Manitoba
MBA Macroblock Address
MBA Maintenance Group Blocking Acknowledgment Signal Message
MBA Masters in Business Administration
MBA Modular Business Access
MBA Multimedia Business Applications
MBA Multiple-Bridged Arrangement
mbar milibar
MBASET Make Busy Application Sets
MBC Modified Bi-phase Code (Telecom.)
MBC Multi Bearer Control
MBC Multiple Bearer Control
MBCD Man Busy Card
MBCE Manual Bridged Call Exclusion
MBCEACC Manual Bridged Call Exclusion Access Codes
MBCETACC Manual Bridged Call Exclusion Toggle Access Code
MBCF Mobile Bearer Control Function
MBCS Multibyte Character Set
MBCT Make Busy Control Terminals
MBCTANL Make Busy Control Per Analog Terminal
MBCTTSP Make Busy Control Terminal Per TSP
MBD Management By Delegation
MBDS Modular Building Distribution System
MBE Molecular Beam Epitaxy
MBE Molecular Beam Epitaxy (GaAs Process, VHSIC Technology)
MBE Multi-Byte Extension
MBF Microsoft Binary Format
MBFM Medium-Band Frequency Modulation
mbg Money Back Guarantee
MBG Multilocation Business Group
MBG Multiswitch Business Group
MBGE Multiswitch Business Group Element
MBI Message Billing Index
MBI Message Billing Indicator
MBIC Modular BiCMOS
MBIF Maintenance Bus Interface
MBIT Metering Bit
M-bit More data bit
Mbit/s Megabits per Second
MBK Make Busy Key
MBKU Multi-Button Key Unit
MBLAM Memory-Based Listing Access Method
MBM Magnetic Bubble Memory
MBM Motion Boundary Marker
MBNQA Malcom Baldrige National Quality Award
MBONE Multicast Backbone
MBone Multicast Backbone
MBONE Virtual Internet Backbone for Multicast IP
MBPC Multiple Burst Per Carrier
MBPG Mobile Paging
MBPS Measure-Based Priority Scheme
Mbps Megabits Per Second
MBPS MegaBytes Per Second
MBPT Multiple Burst Per Transmitter
MBR Master Boot Record
MBS Master Boot Sector
MBS Maximum Burst Size
MBS M-bit Sequence
MBS Meridian Business Set
MBS Microcell Base Station
MBS Mobile Broadband Services
MBS Mobile Broadband System
MBS Multi-Block Synchronization signal unit
MBSCO Meridian Business Set Camp-On
MBSCW Meridian Business Set Call Waiting
MBSY Manual Busy
MBTI Meyers-Briggs Type Indicator
MBU Message Buffer Unit
MBUR Maintenance Group Blocking/Unblocking Reception
MBUS Maintenance Group Blocking/Unblocking Sending
M-BWO M-type Backward Wave Oscillator (Microwaves)
MBX Multi-Buffering Extension
MBYTE Match Byte
Mbyte Megabyte
MC ISO country code for Principality of Monaco
MC Machine Congestion
MC Maintenance Center
MC Maintenance Control
MC Maintenance Controller
MC Major Class
MC Major Line Class
MC Management Client
MC Management Committee
MC Marks Committee (CENELEC)
MC Media Copy
Mc Megacycle
MC Message Center
MC Message Controller
MC Message Converter
MC MHz
MC Module Code
MC Motion Compensated
MC Motion Compensation
MC Moving Coil
MC Multi Carrier (TDMA)
MC Multiple Carrier
MC Multiplex Code
MC Multipoint Control Entity
MC Multipoint Controller
MC1 Machine Congestion Level 1
MC2 Machine Congestion Level 2
MC3 Machine Congestion Level 3
MCA Manual-Changeover-Acknowledgement signal
MCA MDII: Misrouted CAMA
MCA Micro Channel Architecture
MCA Mobile Corporate Access
MCA Multichannel Access
MCA Multiple Call Arrangement
MCA Multiplexing Channel Adapter
MCAD Mechanical CAD
MCAM Meridian Cabinet Auxiliary Module
MCAST Multicast
MCB Memory Control Block
MCB Message Control Block
MCB Mobile Communications Bureau
MCBTS Multi-Channel Basestation Transceiver Subsystem
MCC Call Control-Management Entity Interface
MCC Maintenance and Control Center
MCC Maintenance Control Center
MCC Maintenance Control Circuit
MCC Master Control Center
MCC Master Control Complex
MCC Message Channel Controller
MCC Miscellaneous Common Carrier
MCC Mobile Control Center
MCC Mobile Country Code
MCC Mobile Crosstalk Control
MCC Multi-Channel Connection
MCC Multiple Channel Coordination
MCC Multipoint Command Conference
MCCC Multi Connection Call Control
MCCD Mechanized Calling Card Service Digits
MC-CDMA Multicode CDMA
MCCOI Multimedia Conferencing Community of Interest
MCCS Mechanized Calling Card Service
MCD Maintenance Cell Description
MCD Minimum Charge Duration
MCD Minimum Chargeable Duration
MCD Mobile Communications Division
MC-DCT Motion Compensation-Discrete Cosine Transform
MCDN Meridian Customer Defined Networking
MCDN Message Center Directory Number
MCDN Micro-Cellular Data Network
MCDR Meridian Cabinet Digital Remote
MCDS Multi-Channel Data System
MCDU Thousands, Hundreds, Tens, Units
MCDV Maximum Cell Delay Variance
MCE M Bus Checker Enable
MCE Management Control Entity
MCEI MAC Connection Endpoint Identification
MCF Maintenance Control Flag
MCF Master Configuration File
MCF Media Access Control Convergence Functions
MCF Medium access control Convergence Function
MCF Message Communication Function
MCF Message ConFirmation
MCF Meta Content File
MCF Meta Content Framework
MCF Mobile Control Function
MCF Most Critical First
MCFS Modem Characteristics Facility Support
MCG Maintenance Code Gap
MCG Motorola Computer Group
MCGA Memory Controller Gate Array
MCGA Multicolor Graphics Array
MCGAM MIXER Conformant Global Address Mapping
MCH Maintenance Channel
MCH Malicious Call Hold
MCH Matcher
MCHO Mobile Controlled Handover
MCI Malicious Call Identification
MCI Media Control Interface
MCI Message Compatibility Information
MCI Microwave Communications Inc.
MCID Malicious Call IDentification (supplementary service)
MCIDRi MCID Request Indicator
MCIDRi MCID Response Indicator
MCIL Manufacturing Compatible Issue Lineup
MCIS Microsoft Commercial Internet Service
MCL McLean
MCL Mercury Communications Ltd.
MCL Microsoft Compatibility Labs
MCL Multipoint Communication Layer
MCLM Meridian Cabinet Line Module
MCLM-E Meridian Cabinet Line Module-Enhanced
MCLPA Multi Channel Linear Power Amplifier
MCLR Maximum Cell Loss Ratio
MCM Maintenance Control Module
MCM Message Channel Maintenance
MCM Message Channel Manager
MCM Multicarrier Modulation
MCM Multichip Module
MCM Multi-Chip Module
MCMP Manual Camp-On
MCN M-Communication Network
MCN Mobile Cellular Network
MCN Mobile Control Node
MCN Multipoint Command Negating
MCNC Microelectronics Center of North Carolina
MCNS Multimedia Cable Network Systems
MCNT Meter Pulse Count
MCO Manual-Changeover signal
MCO Mobility Call Origination
MCO Multi-Console Organizer
MCOM Mosaic Communications Corporation
MCompI Message Compatibility Information
MCOS Message Waiting Class of Service
MCOS Messaging Class of Service
MCP Management and Control Processor
MCP Maritime Cargo Processing
MCP Message Control Program
MCP Microsoft Certified Professional
MCP Mobility Control Point
MCPA Multicarrier Power Amplifier
MCPC Multiple Channels Per Carrier
MCPN Mobile Customer Premises Network
Mcps Megacycles per second (obsolete)
MCPS Microsoft Certified Product Specialist
MCPS Multi-CPS
MCPT Multiple Channels Per Transmitter
MCR Mapped Conversation Record
MCR Mate Communications Register
MCR Minimum Cell Rate
MCR Mirror Consistency Record
MCR Module Configuration Register
MCR Monitor Console Routine
MCRD Maximum Call Redirections and Deflections
MCRT Maintenance CRT
MCRU Meridian Cabinetized Remote Unit
MCRW Memory-Card Reader/Writer
MCS MAP Communication Server (IBM)
MCS Maritime Communications System
MCS Message Collection System
MCS Message Command System
MCS Message Control System
MCS Micro Controller System
MCS Microcontrol Store
MCS Microcontroller Subsystem
MCS Micro-Controller Subsystems
MCS Microsoft Consulting Services
MCS Mini Cable Ship
MCS Multicast Server
MCS Multi-Channel Scaler (Counter)
MCS Multimedia Communications Systems
MCS Multipoint Command Symmetrical Data Transmission
MCS Multipoint Communication Service (ITU)
MCS Multipoint Communications Service(s)
MCS Multipoint Communications System
MCSA Multi-Channel Spectrum Analyser
MCSA Multimedia Communications Systems Architecture
MCSD Microsoft Certification for Software Developers
MCSD Microsoft Certified Solution Developer
MCSE Multiplex Configuration Signalling Entity
MCSN Monitoring Cell Sequence Number
MCSS Meridian Cabinet Spare Storage
MCT Malicious Call Trace
MCT Metric Color Tag
MCT Mobile Communication Terminal
MCT Modem Conformance Tester
MCTCB Maximum Combined Throughput Class for B-Channel
MCTCD Maximum Combined Throughput Class for D-Channel
MCTD Maximum Cell Transfer Delay
MCTG Multicast Translation Group
MCTSI/DLI Module Controller Time-Slot Interchanger/Dual-Link Interface
MCTU Module Controller Time Slot Interchange Unit
MCU Main Control Unit
MCU Master Control Unit
MCU MicroComputer Unit
MCU Microcontroller Unit
MCU Microprocessor Control Unit
MCU Minimum Coded Unit
MCU Mobile Computing Unit
MCU Multipoint Conference Unit
MCU Multipoint Connection Unit
MCU Multipoint Control Unit
MCUP Mechanization and Cooperative User Programming
MCVD Modified Chemical Vapor Deposition
MCVFT Multichannel Voice Frequency Telegraphy
MCW Modulated Continuous Wave
MCZA Multiple Channel Zone Access (Telecom.)
MD ISO country code for Republic of Moldova
MD Management Domain
MD Manufacture Discontinue
MD Manufacture Discontinued
MD Manufacturer-Defined
MD Manufacturing Discontinued
MD Mediation Device
MD Message Definition
MD Message Delimiter
MD Message Digest
MD Microsoft DoubleSpace
MD Mini-Disk
MD Mission Domain
MD Monochrome Display
MD More Data
MD Moving Direction
MD Multi-Destinational
MD Multiple Digit
MD U.S. postal code for Maryland
MD2 Message Digest 2
MD4 Message Digest 4
MD5 Message Digest 5
MDA Manufacturing Design Authorization
MDA Mechanical Design Automation
MDA Mechanized Directory Assistance
MDA Modular Digital Architecture
MDA Monochrome Display Adapter
MDA Multiple Digit Absorbing
MDB Maintenance Device Buffer
MDB Message Data Block
MDB Meta Database
MDB Modified Duobinary
MDB Module Database
MDBS Mobile Data Base Station
MDC Manipulation Detection Code (OSI/security)
mdc Markup Declaration Close
MDC Meridian Digital Centrex
MDC Message and Device Controller
MDCB Meridian Digital Centrex Base
MDCD Meridian Digital Centrex Data Services
MDCT Modified Discrete Cosine Transform
MDDS Message Definition Data Structure
MDE Message Departure Element
MDE Multi-Processing Development Environment
MDF Main Distributing Frame
MDF Main Distribution Frame
MDF Maintenance Disable Flag
MDH Mission Domain Host
MDI Manipulation Dependent Interface (IEEE 802)
MDI Media Dependent Interface
MDI Medium Dependent Interface
MDI Message Desk Indicator
MDI Mobile Data International Inc.
MDI Multiple Document Interface
MDII Machine-Detected Interoffice Irregularities
MDII Machine-Detected Interoffice Irregularity
MDIS Mobile Data Intermediate System
MD-IS Mobile Data Intermediate System
MDK Multimedia Development Kit
MDL Data Link Connection Management
MDL Data Link Layer (Layer 2)-Management Entity Interface
MDL Management Data Link
MDL Mobile Data Link
MDLP Mobile Data Link Protocol
MDM Media Device Manager
MDM Memory and Device Module
MDM Normal Disconnected Mode
MDMF Multiple Data Message Format
MDN Multiple Access Directory Number
MDN Multiple Appearance Directory Number
MDNS Managed Data Network Services (CEPT)
MDNS Meridian Data Network Systems
mdo Markup Declaration Open
MDP Magellan Data Provider
MDP Markov Decision Process
MDP MFOS Demonstration Program
MDP Microsoft Developer Studio Project Workspace file
MDP Multicast Dissemination Protocol
MDPSK Modified Differential Phase Shift Keying
MDQ Message Departure Queue
MDR Management Data Router
MDR Meeting Details Recording
MDR Message Detail Recording
MDR7 CCS7 Message Detail Recording
MDRACC Message Detail Recording Account Codes
MDRAM Multibank DRAM
MDRCODES MDR Account Codes
MDRCP Message Detail Recording- Customer Premises
MDR-CP Message Detail Recording to the Customer's Premises
MDRDT1 Message Detail Recording Data 1
MDRDT2 Message Detail Recording Data 2
MDRDT3 Message Detail Recording Data 3
MDRDT4 Message Detail Recording Data 4
MDRID Message Detail Recording Customer Identification
MDRID Message Detail Recording Identification
MDRRAO Message Detail Recording to Revenue Accounting Office
MDR-RAO Message Detail Recording via Revenue Accounting Office
MDRS Message Detail Recording System
M-DRU Multiple DRU
MDS Malfunction Detection System
MDS Message Delivery Service
MDS Message Delivery System
MDS Message Desk Service
MDS Microprocessor Development System
MDS Microsoft Directory Services
MDS Microwave Distribution Service
MDS Modular Documentation System
MDS MTX Data Server
MDS Multipoint Distribution Service
MDS Multipoint Distribution System
MDSC Message Distribution Control
MDSE Message Delivery Service Element
MDSL Medium-Bit-Rate Digital Subscriber Line
MDT Mean Down Time
MDT Motor Data Terminal
MDT Mountain Daylight Time
MDTRS Mobile Digital Trunked Radio System
MDU Magnetic Disk Unit
MDU Maximum Data Unit
MDU Meridian Data Unit
MDU Multi Disk Unit
MDU Multiple Dwelling Unit
MDV Meridian Display Vehicle
MDW Multiline Digital Wireless
MDW Multiple Drop Wire
MDX Modular Digital Exchange
ME Maintenance Entity
ME Managed Element
ME Management Entity
ME Mapping Element
ME Measurement Entity
ME Memory Access
ME Message Expert
ME Messsage Element
mE Milli Erlangs
ME Mobile Equipment
ME Motion Estimation
ME U.S. postal code for Maine
MEA Maintenance Entity Assembly
MEA Mismatch of Equipment and Attributes
MEA Multi-Element Array
MEANS Minnesota Equal Access Network Services Inc.
MEAS Measure
MEB Mate Exchange Bus
MEBO Marine Etc Broadcasting Offences (Act)
MEC Memory Echo Canceller
ME-C Management Entity Control
MECAB Multiple Exchange Carrier Access Billing
MECCA Mechanized Evaluation of Call Completion Anomalies
MECG Maternal Electro CardioGram
MECL Motorola (Inc.) Emitter-Coupled Logic
MECO Main Engine CutOff
MECOD Multiple Exchange Carriers Ordering and Design
MED Management Evaluation and Development
MED Manchester Encoder/Decoder
MED Modular Electronic Device
MEDLARS MEDical Literature Analysis and Retrieval System
MEE Message Extension Element
MEEQ Message Extension Element Queue
MEF Maintenance Entity Function
MEF Measurement Function
MEF MEssage Field
MEG Magneto-EncephaloGraphy
MEG Mobile Experts Group
MEI Maintenance Event Information
MEI MBus to ECORE Interface
MEI Mobile Equipment Identity
MEI Modified, Exclusive, Invalid
MEI Multiple Extension Interworking
MEIF Management Entity Interface
MEL Market Expansion Line
MEL Match Enable Latch
MEL Material Equipment List
MEL MEssage Length
MEM Cluster Member
MEM Memory
MEMCALC Memory Calculation
MEMS Micro-Electromechanical Systems
MEO Medium Earth Orbit
MEO Monomorphic Embedded Object
MEOS Medium Earth Orbit Satellite
MEP Member of European Parliament
MEP Message Encoding Problems
MEQ Message Extension Queue
MER Meriline
MER Message Error Rate
MERLIN Multi-Element Radio Link Interferometry Network
MERP Multiple-Entry Retrieval Process
MERR Multiple Error
MERS Most Economical Route Selection
MERT Multi-Environment Real Time
MES Manufacturing Execution System
MES Mobile Earth Station
MES Mobile satellite Earth Station
ME-S Mobile Data End System
M-ES Mobile End Station
M-ES Mobile End System
MESFET Metal Semiconductor Field-Effect Transistor
MES-FET MEtal-Semiconductor (hot carrier contact) GaAs-FET
MESH MEdical Subjects Headings (Dedicated DB Retrieval Language)
MESH-BN MESHed Bonding Network
MESH-IBN MESHed Isolated Bonding Network
MESI Modified, Exclusive, Shared, Invalid
MESSR Multispectral Electronic Self-Scanning Radiometer
MET Memory Engineering Tool
MET Multi-Button Electronic Set
MET Multi-Emitter Transistor
MET Presentation Manager Metafile
META Metrics, Tools and Analysis
METD Maximum End-to-End Transit Delay
METER Metering Team
METRAN Managed European Transmission Network
METRO Metropolitan
METSAT METeorlogical SATellite
MEV Mega Electron-Volt
MeV Million Electron Volts
MEX Memory Extension
MEXE Mobile Execution Environment
MF Main Frame
MF Management Function
MF Mandatory Fixed Length
MF Mapping Function
MF Mediation Function
MF Medium Frequencies (300- 3000kHz)
MF Menu Flag
MF Micro-Fiche
MF Micro-Film
MF More Fragments flag
MF Multiframe
MF Multifrequency
MFA Management Functional Area
MFA Managing For Achievement
MFA Modular Front Access
MFADS Mechanized Force Administration Data System
MFAQ Most Frequently Asked Questions
MFAS Multiframe Alignment Symbol
MFC Manufacturer's Code
MFC Memory Fault Correctable
MFC Microsoft Foundation Classes
MFC Multi-Frequency Code
MFC Multifrequency Compelled
MFD Management Functional Domain
MFD Master File Directory
MFE Multiple Frame Established
MFE Multiple Frame Establishment
MFG Manufacturer Code
MFIR Mate Fault Indication Register
MFJ Modification of Final Judgment
MFJ Modified Final Judgement
MFL Message Framework Library
MFLD Modified FLooDnet (LAN protocol)
MFLOP Million Floating Point Operations Per Second
MFLOPS Mega FLoating-Point Operations Per Second
MFLOPS Millions of Floating Point Operations Per Second
MFLR Maximum Frame Length Register
MFM Modified Frequency Modulation
MFM Modified Frequency Modulation (magnetic recording)
MFO Multifrequency Signaling Originating
MFO Multiple Frame Operation
MFOS Multifunction Operations System
MFP Multifrequency Pulsing
MFP Multifunction Peripheral
MFP Multi-Function Peripheral
MFP Multifunction Printer
MFP Multi-Function Protector
MFPB Multifrequency Pushbutton
MFPC Multiple Function PC
MFPLS Mainframe PLS
MFR Manufacturer
MFR MF Receiver
MFR MultiFrame Register
MFS Macintosh File System
MFS Memory File System
MFS Metropolitan Fiber Systems
MFS MF Sender
MFS MultiFrame Sender
MFS Multiprotocol Controller Fast Simulator
MFSK Multilevel Frequency Shift Keying
MFSK Multiple Frequency Shift Keying
MFSP Modular Frame Supervisory Panel
MFT Manual File Transfer
MFT Master File Table
MFT Meridian Feature Transparency
MFT Metallic Facility(ies) Terminal
MFT Multiprogramming with Fixed Number of Tasks
MFTP Multicast File Transfer Protocol
MFU Most Frequently Used
MFV Message Format Violation
MG ISO country code for Republic of Madagascar
MG Master Group
MGA Matrox Graphics Architecture
MGA Monochrome Graphics Adapter
MGB Main Ground Bus
MGB Maintenance Group Blocking Signal
MGB Master Ground Bar
MGC Mentor Graphics Corporation
MGCM Meridian General Cabinet Module
MGE ManaGement Entity
MGE Message Generation Element
MGI Mechanized Generic Interface
MGM Multicast Group Management
MGMT Management
MGMT Management System
MGN Multi-Grounded Neutral
MGQ Message Generation Queue
MGR Manager
MGT Master Group Translator
MGT Mobile Global Title
MGTS Message Generator/Traffic Simulator
MGU Maintenance Group Unblocking Signal
MH ISO country code for Marshall Islands
MH Manhole
MH Merkle-Hellman
MH Message Handler
MH Message Handling
MH Mobile Host
MH Modified Huffman
MH Multimedia and Hypermedia information
MHD Moving Head Disk
MHEG Multimedia and Hypermedia Experts Group
MHEG Multimedia and Hypermedia information coding Experts Group (ISO/IEC)
MHF Message Handling Facilities
MHF Mobile Home Function
MHIC Multiport HDLC Interface Chip
MHLD Music On Hold Treatment
MHO Host Application-Management Entity Interface
MHO My Humble Opinion
MHP Message-Handling Processor
MHPROC Message Handling Process
MHRP Mobile Host Routing Protocol
MHS Message Handling Service
MHS Message Handling System
MHT Mean Hold Time
MHTML Meta-HyperText Markup Language
MHz Megahertz
MHz MegaHertz
MI Maintenance Initiate
MI Management Interface
MI Mechanized Interface
MI Message Interface
MI Method Identifier
MI Minimum Interference
MI Miscellaneous Item (ETSI)
MI Mode Indicate
MI Mode Indicative
MI Mode Indicator
MI Modem Indicator
MI Multiple Inheritance
MI U.S. postal code for Michigan
MI/MIC Mode Indicator/Mode Indicator Common
MIA Manual Incoming Allowed
MIA Multiple Index Approach
MIAM Miami
MI-API Management Interface- Applications Programming Interface
MIB Management Information Base
MIB Management Information Block
MIC Maintenance Interface Card
MIC Management Integration Consortium
MIC Manufacturer Identity Code
MIC Media Interface Connector
MIC Media Interface Connector (Fibre-Optic Data Communications)
MIC Medium Interface Connector
MIC Message Integrity Check
MIC Message Integrity Code
MIC Message Interface Card
MIC MICrocomputer
MIC Microwave Integrated Circuit
MIC Mobile Interface Controller
MIC Mode Indicate Common
MIC Mode Indicator Common
MIC Modem Interface Card
MICA Management of Information as a Corporate Asset
MICC Maintenance Information at Customer Contact point
MICE Microtek (Inc.) In-Circuit Emulator
MICP Mobile Internetworking Control Protocol
MICR Magnetic Ink Character Recognition
MICS Maintenance Inventory Control System
MICS Modular Integrated Communications System
MICU Message Interface and Clock Unit
MID Manual Incoming Denied
MID Maritime Identification Digit
MID Mean Interruption Duration
MID Message Identified
MID Message Identifier
MID Metafile for Interactive Documents
MID MIDI Sequence file
MID Mobility Incall Delivery
MID Module Identifier
MID Multiplexing Identification
MID Multiplexing Identifier
MIDA Message Interchange Distributed Application (ECMA)
MIDA Multiple Integrated Digital Access (UK)
MIDAS Multitier Distributed Application Services
midc Message Intercept and Dispatch Control
MIDI Musical Instrument Digital Interface
MIDL Microsoft Interface Definition Language
MIEE Member of Institution of Electrical Engineers (UK)
MIEE Member of the Institute of Electrical Engineers
MIEEE Member of Institute of Electrical and Electronics Engineers, Inc. (US)
MIEIE Member of Institution of Electronics and Electrical Incorporated Engineers (UK)
MIF Machine-to-Machine Interface Format
MIF Maintenance Interface
MIF Maker Interchange Format
MIF Management Information File
MIF Management Information Format
MIFF Machine Independent File Format
MIFR Master International Frequency Register
MIG Metal-In-Gap
MII Media-Independent Interface
MII Mobile Information Infrastructure
MIL 1/1000 of an Inch (0,0254 millimetres)
MIL Maintenance Interface Layer
MIL Management Information Library
MIL Military
MIL MILitary (quality standard)
mil Military groups domain
MIL Military Standard
MIL STD Military Standard
MILNET Military Network
MILS Missile Impact Location System
MIL-STD Military Standard
MIM Management Information Message
MIM Management Information Model
MIM Management Inhibiting Messages
MIM Man-in-the-Middle
MIM Metal Insulator Metal
MIM Modifier Information Manager
MIM Module Information Memory
MIMD Multiple Instruction Multiple Data
MIME Multipurpose Internet Mail Extensions
MIMS Messaging, Information, and Media Sector
MIN Minimum
Min Minor
MIN Mobile Identification Number
MIN Mobile Identity Number
MIN Multiple Interaction Negotiation service element (OSI/VT)
MIN Multistage Interconnection Network
MINCM Management Intelligent Network Conceptual Model
MINE Microbial Information Network for Europe
MINIT Minimum Interference Threshold
MIO Multistationary Inclined Orbits
MIP Maintenance in Progress
MIP Maintenance Interface Protocol
MIP MCI ISN (Intelligent Services Network) Platform
MIP Mobile IP
MIPPS Micro Integrated Project Planning System
MIPS Management Information Protocol Specification
MIPS Mega Instructions Per Second
MIPS Microprocessor Without Interlocking Pipe Stages
MIPS Millions of Instructions Per Second
MIR Management Information Repository
MIR Maximum Information Rate
MIR Microinstruction Register
MIRS Motorola Integrated Radio System
MIS Machine Instruction Set
MIS Management Information Services
MIS Management Information System(s)
MIS May I Send
MIS Mechanized Interface Specification
MIS Metal Insulator Silicon (IC Technology)
MIS Microcode Instruction Sequencer
MIS Miscellaneous
MIS Miscellaneous Equipment Frame
MIS Multimedia Information Service
MISC Miscellaneous
MISD Management Information Service Definition
MISD Multiple Instructions Single Data
MISD Multiple-Instruction Single-Data
MISFET Metal, Insulator, Semiconductor Field-Effect Transistor
MISM Mismatch
MIS-MLHG Management Information System for Multiline Hunt Group
MISSI Multi-Level Information Systems Security Initiative
MIT Management Information Tree
MIT Massachusetts Institute of Technology (USA)
MITE Modem Interface to Ethernet
MITI Massachusetts Information Turnpike Initiative
MITI Ministry of International Trade and Industry (US)
MITS Macintosh ISDN Terminal Simulator
MIU Maintenance Interface Unit
MIU Memory Interface Unit
MIU Mimimum Investment Unit
MIU Multistation Interface Unit
MIX Modem Interface to Xlbus ASIC
MIXER MIME Internet X.400 Enhanced Relay
MJ Major
MJD Modified Julian Date
MJPEG Motion JPEG
MJU Multipoint Junction Unit
MK ISO country code for Macedonia (former Yugoslav Republic of)
MK Mouse Key
MKR Marker
MKR MarKeR-beacon
MKS Metre, Kilogram, Second (system of measurement)
MKS Mortice Kern Systems
MKV MasterKey Vector
ML ISO country code for Republic of Mali
ML Machine Language
ML Maintenance Limit
ML Managed Links (GNS-BT)
ML Matching Loss
ML Maximum Latency
ML Maximum Length
ML Maximum Likelihood
ML Message Length
ML Message Link
ML MetaLanguage
MLA Microprocessor Language Assembler
MLA Microwave Link Analyser
MLA Modern Language Association
MLA Multiline Addressing
MLAMP MADN Lamp
MLAP MAC Level Access Protocol
MLAP Metallic Line Access Port
MLB Multilayer Board
MLB Multi-Line Business
MLC MPC, Link, and Conversation Number
MLC Multi-Layer Ceramic (Capacitor)
MLC Multi-Line Card
MLC Multilink Control Field
MLCS MegaLink Channel Procedure
MLD Mean Logistic Delay
MLD Median Lethal Dose
MLDA Multiple Listing Directory Assistance
MLE Medium Local Exchange
MLE Message-List Editing
MLE Microprocessor Language Editor
MLE Mobile Link Entity (TETRA)
MLF Management Leadership Forum
MLG Multiline Group
MLH Multiline Hunt(ing)
MLHG Multiline Hunt Group
MLHG-I ISDN Multiline Hunt Group
MLI Message Link Interface
MLI MultiLeaving Interface
MLI Multilink Irregularity
MLID Multiple Link Interface Driver
MLIPS Mega Logical Inferences Per Second
MLL Mode-Locked Laser
MLLE Medium Large Local Exchange
MLM Multi-Level Metal
MLM Multi-Longitudinal Mode
MLMR Maximum Likelihood Multiuser Receiver
MLNR Motorola Lab Non Res
MLOC Multiple Locations Resource Finder
MLP Multi-Layer Perception
MLP Multilayer Protocol
MLP Multilink Procedure(s)
MLP Multiple License Pack
MLP Multiple Line Printing
MLP Multiple Link Procedure
MLPP Multi-Level Precedence and Preemption
MLPPP Multilink PPP
ML-PPP Multilink Point-to-Point Protocol
MLQ Message Length Qualifier
MLR Mechanized Line Record
MLR Multiple Line Reading
MLRD Modified Long Route Design
MLS Microwave Landing System (Avionics)
MLS Modulated Light Source
MLS Multilayer Switching
MLS Multilevel Secure
MLS Multilevel Security
MLS Multiline Selection
MLS Multilingual Listing Services
MLS Multiple Listing Service
MLSD Maximum Likelihood Sequence Detection
MLSE Maintenance Loop Signalling Entity
MLSE Maximum Likelihood Sequence Estimation
MLSE Maximum Likelihood Sequence Estimator
MLSO Mode-Locked Surface-Acousticwave Oscillator
MLT Mechanized Line Testing
MLT Mechanized Loop Test
MLT Mechanized Loop Tester
MLT Mechanized Loop Testing
MLT Median Lethal Time
M-LT Metropolitan area network-Line Termination
MLTERM Multiline Hunt Group Terminal
MLTERM Multiline Hunt Group Terminal Number
MLTERMTYP Multiline Hunt Group Terminal Type
MLTS Microlevel Test Set
MLTS Multiline Telephone Set
MLU Multi Line Unit
MLV Marne La Vallee
MLVP Multiline Variety Package
MM DDOC Section: Man-Machine Interface
MM ISO country code for Myanmar
MM Man Machine
MM Man-Month
MM MannMonate
MM Mapping Mode
MM Mate Manager
MM Meet Me
MM Meeting Minutes
MM Meetingless Meeting
MM Memory Manager
MM Message Mode
MM Messaging Manager
mm Millimeter(s)
mm millimetre
MM Mismatch
MM Mixed Mode
MM Mobility Management
MM Mobility Manager
Mm Modem
MM Multi Mode (Fibre Optics)
MM Multimedia
MM Multimode
MMA MIDI Manufacturers Association
MMA Multiple Message Alerting
MMAB Multimedia Applications Base
MMB Man Made Busy
MMB Middle Mouse Button
MMBN Multimedia Broadband Network
MMBS MultiMedia Base Station
MMC Man-Machine Communication
MMC Meet-Me Conference
MMC Meet-Me Conference (supplementary service)
MMC Microsoft Management Console
MMC Microwave/Millimeterwave Components
MMC Mobile Multimedia Communications
MMC Monolithic Multicomponents Ceramic
MMC Monopolies and Mergers Commission
MMC Multimedia Collaboration
MMC Multimedia Multiparty Conferencing
MMCD Multimedia Compact Disc
MMCF Multimedia Communications Forum
MMCS Multimedia Carrier Switch
MMCX Multimedia Call Exchange
MMCX MultiMedia Communications Exchange
MMD Multimedia
MMDS Microwave Multipoint Distribution System
MMDS Multichannel Microwave Distribution Service
MMDS Multichannel Multipoint Distribution Service
MMDS Multichannel Multipoint Distribution System
MMDS Multichannel, Multipoint Distribution System
MME Mobile Management Entity
MME Multi-Modal Estimation
MMEI Management to Managed Element Interface
MMES Maritime Mobile Earth Station
MMF Magneto-Motive Force
MMF Microsoft Mail File
MMF MSS Management Function
MMF Multimode Fiber
MMFS Manufacturing Messaging Format Standard (MAP)
MMG Motorola Multimedia Group
MMgr Messaging Manager
MMH Maintenance Man-Hours
MMI Machine-to-Machine Interface
MMI Man-Machine Interaction (interface)
MMI Man-Machine Interface
MMIC Monolithic Microwave Integrated Circuit
MMIC Monolithic Millimeter-wave IC
MMIO Multimedia I/O
MML Maker Markup Language
MML Man-Machine Language
MML Multimedia Module Library
MMM Multi Media Multiplexer
MMM Multimedia Mail
MMM Multiunit Network Management and Maintenance message
MMN Multimedia Network
MMO Mobile Module
MMP Maintenance Modem Pool
MMP Memory Management Process
MMP Mobility Management Protocol
MMP Module Message Processor
MMP Multichassis Multilink PPP
MMPM Multimedia Presentation Manager
MMPM/2 Multimedia Presentation Manager/2
MMPP Markov Modulated Poisson Process
MMPT Mismatch Path Trace
MMR Modified Modified Reed
MMRL Multimedia Resource Layer
MMRM Multimedia Resource Manager
MMS Manufacturing Message Service/Specification
MMS Manufacturing Message Services (EWOS)
MMS Manufacturing Message Specification
MMS Manufacturing Messaging Service (MAP)
MMS Message Management Service
MMS Message Management Subsystem
MMS Mini-Micro Systems (periodical)
MMS MMCS Management System
MMS Modified Monitoring State
MMS Module Management System
MMS 43 Modified Monitoring State 4B/3T
MMS43 Modified Monitoring State 4B/3T
MMSE Minimum-Mean-Squared Error
MMSL Mismatch Signal Label
MMSRK Mismatch Between Sent and Received K-Bytes
MMSS Maritime Mobile Satellite Service
MMSU Modular Metallic Services Unit
MMTA Multimedia Telecommunications Association
MMTF Mobile Management Task Force
MMTS Manual Mobile Telephone System
MM-TSC Messaging Management Technical Subcommittee
MMU Memory Management Unit
MMU Metered Message Unit
MMU Multi-Message Unit
MMUI Multi Media User Interface
MMUM Miscellaneous Multiunit Message
MMUSR MMU Status Register
MMVF Multimedia Video File
MMVI Multimedia Voice Interface
MMW Millimeterwave Microwave
MMX Multimedia Extensions
MN ISO country code for Mongolian People's Republic (Mongolia)
MN Matched Node
MN Metropolitan Area Network Node
MN Microwave Network
MN Minor
MN Mobile Node
MN U.S. postal code for Minnesota
MNA Multiple Network Appearance
MNAC Message Network Access Code
MNAS Multinetwork Access Services
MNC Meridian Network Control
MNC Mobile Network Code
MNC Multiplicative Noise Compensator
MNCC Meridian Network Control Centre
MNCL Maintenance NCL
MNIC Mobile Network Identification Code
M-NIU Multiple Dwelling Network Interface Unit
MNL Maintenance Noise Limit
MNL Network Layer (Layer 3)-Management Entity Interface
MNLP Mobile Network Location Protocol
MNOS Metal-Nitride-Oxide Semiconductor
MNP Microcom (Inc.) Network Protocol
MNP Microcom Networking Protocol
MNP Microcomputer Networking Protocol
MNP Multicontrol Networking Platform
MNP Multi-Network Protocol
MNRP Mobile Network Registration Protocol
MNRU Modulated Noise Reference Unit
MNS Managed Network Solutions
MNT Maintenance
M-NT Metropolitan area Network-Network Termination
MO ISO country code for Macau
MO Magneto-Optical
MO Managed Object
MO Master Oscillator
MO Message Object
MO Message Objectizer
MO Message-Oriented
MO Mobile Originated
MO U.S. postal code for Missouri
MO EOC Message-Oriented Embedded Operations Channel
MO&O Memorandum Opinion and Order
MOA Managed Object Agent
MOA Manager of Object Adapters
MOA Manual Outgoing Allowed
MOA Mobitex Operators Association
MOB Memory-Order Buffer
MOB Mobile
Mobitex Swedish mobile data standard
MOC Maintenance and Operations Console
MOC Managed Object Classe(s)
MOC Ministry of Communications
MOC Mobile Originating Call
MOC Mobile-Originated Call
MOC Multiproduct Operations Controller
MOCROM MicrO-Coded Read-Only Memory
MOCS Managed Object Conformance Statement
MOCVD Metal Organic Chemical Vapor Deposition (GaAs VHSIC Process)
MOD Magnetic Optical Disk
MOD Manual Outgoing Denied
MOD Ministry Of Defence (UK)
MOD Modem
MOD Modify
MOD MODulator
MOD Module
MOD Modulo
MOD Modulus
MOD Movies On Demand
MODEL manufactures cordless portable part model identity code
MODEM MOdulator/DEModulator
MODFET MOdulation-Doped Field-Effect Transistor
MODWB Module Designers Workbench
MOF Managed Object Format
MOF Maximum Observed Frequency
MOH Music On Hold
MOHSOURCE Music On Hold Source
MOL Maximum Output Level
MOL Microsoft Open License
MOM Maintenance and Operations Manual
MoM Manager of Managers
MOM Message-Oriented Middleware
MOM Microsoft Office Manager
MOM Mini Object Manager
MOMA Message-Oriented Middleware Association
MON Monitor
MON MONitor
MONA Meridian Off-Net Access
MONET Mobile Networks
MONET Multiwavelength Optical Network
MOO MUD Object-Oriented
MOOS Maintenance Out-of-Service
MOOS Manual Out-of-Service
MOOSE Metrics for Object-Oriented Software Engineering
MOP Mailbox Observer Proxy
MOP Maintenance Observer Proxy
MOP Maintenance Operation(s) Protocol
MOP Method of Procedure
MOPA Master Oscillator Power Amplifier
MOPS Management Operations per Second
MOPS Mega (Million) Operations Per Second
MOPS Mega Operations Per Second
MOPT Mean One-Way Propagation Time
MOR Multi-Wavelength Optical Repeater
MOS Maintenance Out-of-Service
MOS Manager-Operator Services
MOS Mean Opinion Score
MOS Metal-Oxide Semiconductor
MOS Model Output Statistics
MOS Mux Out-of-Sync
MOSFET Metal-Oxide Semiconductor Field-Effect Transistor
MOS-FET Metal Oxide Semiconductor Field-Effect Transistor
MOSI Master Out / Slave In
MOSPF Multicast Extensions for OSPF
MOSPF Multicast Open Shortest Path First
M-OSPF Multicast Extensions for OSPF
MOSS MIME Object Security Service(s)
MOST Metamorphosis of Service Agent Team
MOSY Managed Object Syntax Yacc-based (4BSD/ISODE SNMP)
MOSY Managed Object Syntax-Compiler (YACC-Based)
MOT Managed Object Under Test
MOT Means of Testing
MOTD Message of the Day
MOTIS Message Oriented Text Interchange System (MHS/ISO)
MOTIS Message-Oriented Text Interchange System
MOTIS MOS Timing Simulator
MOU Memorandum of Understanding
MOU Minutes of Use
MOV Metal-Oxide Varistor (VDR)
MOV Move Instruction
MOVCC Multi Open Via Chip Carrier (VLSI Package)
MOVPE Metal Organic Vapor Phase Epitaxy
MOX Multiple Over/Underlay Extension
MP ISO country code for Northern Mariana Islands
MP Machine Processable
MP Machine Processable Form
MP Machine-Processible
MP Main Processor
MP Management Platform
MP Management Process
MP Managing Process
MP Master Position
MP Master Processor
MP Math Present
MP Measuring Point
MP Memory Protect
MP Metallised Paper
MP Micro-Processor
MP Modem Pool
MP Modulation de Phase
MP Modulation Parameter
MP Module Processor
MP Monitor Coprocessor
MP Multilink Point-to-Point Protocol
MP Multilink PPP
MP Multilink Protocol
MP Multiparty
MP Multipoint
MP Multipoint Processor
MP Multiprocessing
MP Multiprocessor
MP MultiProgramming
MP Multipurpose
MP Multipurpose Position
MP/M MultiProgramming CP/M
MP+ Multilink Protocol Plus
MP3 MPEG-2 audio stream layer-3 compression
MPA Magellan Passport Access
MPa MegaPascal
MPA Modular Power Adapter
MPA Modulating Power Amplifier
MPA Multi-PTN Attendant (supplementary service)
MPAC Multichannel PAC
MPB Multi-Party Bridging
MPBAC Multiple Port Bus Access Circuit
MPBT Modem Pool Busy Time
MPC Maintenance Process Control
MPC Maintenance Processing Control
MPC Message Protocol Card
MPC Message Protocol Circuit
MPC Message-Passing Coprocessor (Multibus 2)
MPC MPOA Client
MPC Multi Purpose Controller
MPC Multimedia Personal Computer
MPC Multimedia Planning and Coordination (ETSI STC)
MPC Multiparty RTP Transport Connection
MPC Multiple Protocol Capability
MPC MultiProCessing
MPC Multi-Protocol Client
MPC Multiprotocol Controller
MPCC MultiProtocol Communications Controller
MPCM Multi-Part Class Manager
MPCNET Multi-Protocol Controller Network
MPD Maximum Permissible Dose
MPD Message Processing and Dispatch
MPD Message Processing and Dispatching
MPD Midnights Passed Digit
MPD Miniport Driver
MPD Model-Pane-Dispatcher
MPD Multiple Path Detector
MPDA Meridian Programmable Data Adapter
MPDC Meridian Power Distribution Center
MPDRAM Multiport DRAM
MPDU Message Protocol Data Unit
MPE Maximum Permissible Exposure
MPE Multi-Point Extension (IEEE 802.3)
MPE Multi-Programming Executive (Hewlett Packard Inc. Computer Operating System)
MPE Multiprotocol Encapsulation
MPEC MultiPulse Excited Coding
MPEG ISO/IEC Moving Pictures Experts Group
MPEG Motion Pictures Experts Group
MPEG Motion/Moving Picture Experts Group
MPEG Moving Picture Experts Group
MPEG Moving Pictures Experts Group
MPEG-1 Motion Picture Experts Group 1
MPEG-2 Motion Picture Experts Group 2
MPEG-3 Motion Picture Experts Group 3
MPEG-4 Motion Picture Experts Group 4
MPE-LPC Multipulse Excited Linear Predictive Coding
MP-EOC Multipoint Embedded Operations Channel
MPER Maintenance Procedural Error Rate
MPF Mapping Field
MPF Multiprocessing Features
MPG Managing Personal Growth
MPG MPEG File
MPG Multiplayer Games
MPG-Net Multi-Players Games Network
MPH (mobile) Management (entity)- PHysical (layer) [primitive]
MPH Miles Per Hour
MPH Multi-Physical
MPH Multiple Position Hunt
MPH Multi-Position Hunt
MPH Physical Layer (Layer 1)-Management Entity Interface
MPH- communication between Management and Data Link layer
MPHT Modem Pool Holding Time
MPI Message Passing Interface
MPI Minimum Picture Interval
MPI Multiple Protocol Interface
MPK Mission Park
MPK Multiprocessing Kernel
MPL Multischedule Private Line
MPLC Modem Pool Line Card
MPLH Multiple Port Link Handler
MPLPC Multipulse Linear Predictive Coding
MP-LPC Multipulse Linear Predictive Coding
MPLS Multiprotocol Label Switching
MPM Master Processor Memory
MPML Meta-Phone Markup Language
MP-MLQ Multipulse Excitation with a Maximum Likelihood Quantizer
MPNS Managed Private Network Service (GNS-BT)
MPOA Multiprotocol Over ATM
MPOL Multi-Protocol Over LANs
MPP Massively Parallel Processing
MPP Massively Parallel Processor
MPP Message Posting Protocol
MPP Microsoft Project file
MPP Multichannel Point-to-Point Protocol
MPP Multilink Point-to-Point Protocol
mp-p Multipoint-to-Point
MPPC Microsoft Point-To-Point Compression
MPQ Multi-Processor Queue
MPR (Swedish national board for measurement and testing)
MPR Misdialed Trunk Prefix message
MPR Modular Power Rectifier
MPR Multi Protocol Router
MPR Multiple Provider Router
MPR Multiprotocol Router
MPR Multi-Purpose Riser
MPROM Mechanized Power Room Operations Monitor
MPRT Master Primary Reference Terminal
MPRT Modem Pool Reservation Time
MPS Maximum Packet Size
MPS MDII: Address Signaling Error- Misplaced Start
MPS Medium Power Satellite (...250 Watt)
MPS MicroProceSsor
MPS Minimal Part Set
MPS Model/Policy Split
MPS Modular Power Shelf
MPS MPOA Server
MPS Multi-Page Signal
MPS Multiple Priority System
MPS Multipriority System
MPS Multi-Processor Specification
MPSC Multi Protocol Serial Controller
MPSK Multiple Phase Shift Keying
MPSP Marketing/Product Strategic Plan
MPSR Mechanical Product Status Review
MPSR Multipath Self-Routing
MPT Ministry of Post and Telegraph
MPT Ministry of Posts and Telecommunications
MPT Multiple PIN Table
MPT Multipoint to Point Tree
MPT Multiport Protocol Tester
MPT 1327 UK Trunked Radio Standard
MPT1 Measurement Point
MPTM Multi-Party Test Method
MPTN Multiprotocol Transport Networking
MPTS Multi-Protocol Transport Services
MPTY Multiparty
MPTy Multiparty
MPTY Multi-ParTY (supplementary service)
MPU Main Processing Unit
MPU MicroProcessor Unit
MPU Micro-Processor Unit
MPV Message Protocol Version
MPVCB Multipoint Video Conference Bridge
MPWD Machine-Prepared Wiring Data
MPX Composite Demodulated Stereo Multiplex (Signal)
MPX multiplex
MPX Multipurpose Extended
MPXC Multipoint Cross-Connection
MPX-IWS Multipurpose Extended Intelligent Workstation
MPyT Multi-Party Testing
MPyTM Multi-Party Testing Methodology
MQ ISO country code for Martinique
MQ Message Queuing
MQA Multiple Queue Assignment
MQFP Metric Quad Flat Pack
MQI Managed Queueing Interface
MQI Message Queue Interface
MQW Multi Quantum Well (Laser Diodes)
MQW Multiple Quantum Well
MQW Multi-Quantum Well
MR ISO country code for Islamic Republic of Mauritania
MR Magnetic Resonance
MR Magnetoresistive
MR Magneto-Resistive
MR Mandatory Requirement
MR Manual Request
MR Measured Rate
MR Meeting Room
MR Message Rate
MR Message Receiver
MR Message Register
MR Message Router
MR Microid Research
MR Mobile Router
MR Modification Request
MR Modified READ (Relative Element Address Designate)
MR Multicast Router
MRA Message Rate Area
MRA Multirate Area
MRA Mutually Restricted Access
MRB Management Request Broker
MRBLR Maximum Receive Buffer Length Register
MRC Maximal Ratio Combining
MRC Monthly Recurring Charge
MRCA Most Recent Common Ancestor
MRCC Maritime Rescue Coordination Centre
MRCF Microsoft Real-Time Compression Format
MRCI Microsoft Real-Time Compression Interface
MRCS Meeting Reservation and Control System
MRD Manual Ring Down
MRD Master Recognition Database
MRD Message Rate Detailed
MRD Message Retrieval Display
MRD Modified Resistance Design
MRDF Machine-Readable Data Files
MRDX Multiple Rate Digital Switch
MREG Message Register
MREL MADN Release
MRF MADN Ring Forward
MRF Maintenance Restart Function
MRF Message-Refusal signal
MRFF Master Reference Frequency Frame
MRFM MADN Ring Forward Manual
MRG Modification Request in Generic
MRI Machine-Readable Imaging (Medical)
MRI Magnetic Resonance Imaging
MRI Microtec Research Inc.
MRJ Mac OS Runtime for Java
MRL Match Recognition Latch
M-RLCM Mini-Remote Line Concentrating Module
MRLE Match Recognition Latch Enable
MRLM Mate Remote Line Module
MRM Message Receiver Manager
MRM Message Resource Monitor
MRM Most Recently used Master
MRM Motif Resource Manager
Mrm Motif Resource Manager
MRN Mobile Routing Number
MRP Materials and Resource Planning (MAP)
MRP Mouth Reference Point
MRQ automatic Repeat reQuest with Memory
MRRC Mobile Radio Resource Control
MRRU Maximum Reconstructed Receive Unit
MRS Magneto-Resistive Sensor
MRS Maintainable Resource Surrogate
MRS Message Rate Service
MRS Mobile Radio Stack (TETRA)
MRS Mobile Radio System
MRS Module Resident Software
MRSA Message Rate Serving Area
MRSE Message Retrieval Service Element
MRSE Microwave Remote Sensing Experiment
MRSE Mode Request Signalling Entity
MRSG Mobile Radio Study Group
MRT Magnetic Resonance Tomography
MRT Mean Repair Time
MRT Medical Response Team
MRT Message Rate Timed
MRT Message Routing Table
MRT Model Reference Testing
MRTD Maximum Resolvable Temperature Difference (Thermometry)
MRTD Message Rate Timed/Detailed
MRTIE Maximum Relative Time Interval Error
MRTO Memory Reference Time Out
MRTR Mobile Radio Transmit Receive
MRTT Mobile Radio Training Trust
MRU Maximimum Receive Unit
MRU Media Resource Unit
MRU Modular Recording Unit
MRU Most Recently Used
MRUA Mobile Radio Users Association
MRV MTP Routing Verification
MRVA MTP Routing Verification Acknowledgement
MRVR MTP Routing Verification Result
MRVT MTP Routeing Verification Test
MRVT MTP Routing Verification Test
MRX Message Routing Exchange (DECnet)
MS ISO country code for Montserrat
MS Main Station
MS Management Server
MS Management Service(s)
MS Management System
MS Master Station
MS Master-Slave
MS Measured Service
MS Measurement Signal
MS Media Sensor
MS Memory System
MS Message Service(s)
MS Message Store
MS Message Switch
MS Message Switching
MS Message System
MS Microsoft
MS MicroSoft
ms millisecond
ms Millisecond(s)
MS Mission Slice
MS Mobile Service
MS Mobile Station
MS Mobile Subscriber
MS Mode Sifter
MS Mode Sifting
MS Most Significant
MS Multiplex Session
MS Multiplexer Section
MS U.S. postal code for Mississippi
MS6E Message Switching 6 Equipment
MS7E Message Switching 7 Equipment
MSA Message Status Area
MSA Message System Agent
MSA Metropolitan Service Area
MSA Metropolitan Serving Area
MSA Metropolitan Statistical Area
MSA Mobile Serving Area
MSA Multiplex Section Adaptation
MSAA Microsoft Active Accessibility
MSAC Meridian Services Attendant Console
MSACM Microsoft Audio Compression Manager
MS-AIS Multiplex Section AIS
MSAL Media Services Access Layer
MSAL Multimedia Service Access Layer
MSAP MAC Service Access Point
MSAP Medium Access Control Service Access Point
MSAP Mini-Slotted Alternating Priority
MSAP Mobile Services Application Part
MSAP Multi-Services Application Platform
MSAT Mobile Satellite
MSAU Multistation Access Unit
MSB Make Set Busy
MSB Message Switch and Buffer
MSB Most Significant Bit
MSB Most Significant Bit
MSB Most Significant Byte
MSB Most-Significant Bit (byte)
MSB6 CCS6 Message Switch and Buffer
MSB6 Message Switch and Buffer 6
MSB7 CCS7 Message Switch and Buffer
MSB7 Message Switch and Buffer 7
MSBI Make Set Busy Intragroup
MSBL MLHG Special Billing
MSBLN MLHG Special Billing Number
MSBVW Magnetostatic Backward Volume Wave
MSC Main Switching Centre
MSC Maintenance Service Charge
MSC Management Service Component
msc Marked Section Close
MSC Message Sequence Chart
MSC Message Switch (Central)
MSC Message Switching Center
MSC Message Switching Concentration
MSC Microsoft C
MSC Mobile Services Switching Center
MSC Mobile Switching Center
MSC Mobile Switching Centre
MSC Modem Shelf Controller
MSC Most Significant Character
MSC Mouse Systems Corporation
MSC Multislot Cell
MSCDEX Microsoft CD-ROM Extension
MSC-H Home MSC
MSCM Mobile Station Class Mark
MSCP Mass Storage Control Protocol
MSCP Mean Spherical Candle Power
MSCP Mobile Service Control Point
MSCS Microsoft Clustering Server
MSCU Message Switch Control Unit
MSCU Mobile Station Control Unit
MSC-V Visited MSC
MSD Mass Storage Device
MSD Microsoft Diagnostics
MSD Modifier Service Directory
MSD Most Significant Digit
MSD Multi Standard Decoder (Television)
MSDC Message Sending Control
MSDEV Microsoft Developer Studio
MSDL Microsoft Download Service
MSDL Multi-Purpose Serial Data Link
MSDN Microsoft Developer Network
MS-DOS Micro-Soft (Inc.) Disk Operating System
MS-DOS Microsoft Disk Operating System
MSDRA Master-Slave Dynamic Rate Access
MSDSE Maritime Satellite Data Switching Exchange
MSDSE Master Slave Determination Signalling Entity
MSDSE Mobile Satellite Data Switching Exchange
MSDT Multi-Services Distant Terminal
MSDTP Message Services Data Transmission Protocol
MSE Maintenance Sub-Entity
MSE Mean Squared Error
msec Millisecond
MSED Minimum Signal Element Duration
MSEE Master of Science and Electronic Engineering
MSF Message Store and Forward
MSF Mobile Serving Function
MSF Mobile Storage Function
MSF Multiscan Function
MS-FERF Multiplex Section FERF
MSFM Multistandard Fast Modem
MSFT Municipal, State, and Federal Tax
MSFVW Magnetostatic Forward Volume Wave
MSG Management Steering Group
MSG Message
MSG MeSsaGe
MSGB Monitoring Service of Great Britain
MSGCH Message Channel
MSGS Message Switch
MSH Most Significant Half Word
MSH Multi-Service Hub
MSI Manufacturer Specific Information
MSI Medium-Scale Integration
MSI Mobile Subscriber Identity (TETRA)
MS-I ISDN Message Service(s)
MSID Mobile Station Identity
MSIE Microsoft Internet Explorer
MSIN Mobile Station Identification Number
MSIN Mobile Subscriber Identity Number
MSIP Maintenance System Interaction Protocol
MSIR Minimum Signal-to-Noise Interference Ratio
MSISDN Mobile Station International ISDN Number
MSISDN Mobile Station ISDN Number
MSISDN Mobile Subscriber ISDN Number
MSJ Microsoft Systems Journal
MSJ The Main Street Journal
MSK Minimum Shift Keying
MSK Minimum Shift Keying (direct phase shifting of laser diode)
MSL Manual Stocklist
MSL Maximum Segment Lifetime
MSL Mean-Squared Loss
MSL Meridian SL-100
MSL Meridian Stored Logic
MSL Microsoft Software Library
MSL Module Structure List
MSL-1 Meridian SL-1
MSLS Most Significant-Least Significant
msm Market Segment Manager
MSM Memory/Space/Memory
MSM Microwave Switching-Matrix
MSMC Media Stimulated Mass Calling
MSMQ Microsoft Message Queue
MSN Meridian SuperNode
MSN Meridian Switched Network
MSN Message Sequence Number
MSN Message Switch Network
MSN Mobile Subscriber Number
MSN Mobility Support Network
MSN Most Significant Nibble
MSN Multiple Subscriber Number
MSN Multiple Subscriber Number (supplementary service)
MSN Multi-Service Network
MSN The Microsoft Network
MSNDS Microsoft NDS
MS-NET Microsoft Networks
MSNF Multiple-system Network ?
MSNF Multi-System Networking Facility
MSO Management Support Object
MSO Multiple Service(s) Operator
MSO Multiple System Operator
MSOH Multiplex Section Overhead
MSP Maintenance Service Provider
MSP Management Service Provider
MSP Master Service Processor
MSP Master Stack Pointer
MSP Message Security Protocol
MSP Message Switch Processor
MSP Microsoft Paint
MSP Microsoft Solution Provider
MSP Modifier Service Participant
MSP Modular Supervisory Panel
MSP Multichassis Synchronization Protocol
MSP Multiplex Section Protection
MSP Multiplex Shared Protection
MSP Multiserver Processor
MSP Multi-Service(s) Platform
MSP Multi-Tech Supervisory Protocol
MSPP Message Switch Peripheral Processor
MSPS Mega Samples Per Second
MSPU Message Switch Peripheral Unit
MSQ Mean Square
MSQS Multistage Queue Status
MSR Machine State Register
MSR Management System Review
MSR Message Send and Receive
MSR Message Storage and Retrieval
MSR Microsoft Research
MSR Mobile Service Region
MSR Mobile Serving Region
MSR Mobile Support Router
MSR Modular Square Root
MSRID Message Storage and Retrieval System Identification
MSRN Mobile Station Roaming Number
MSRP Manufacturer's Suggested Retail Price
MSRS Message Storage and Retrieval System
MSRT Message Switch Routing
MSS Maintenance Spare Storage
MSS MAN Switching System
MSS Maritime Satellite System
MSS Mass Storage Subsystem
MSS Mass-Storage System
MSS Maximum Segment Size
MSS Member of Scientific Staff
MSS Metropolitan area network Switching System
MSS Mobile Satellite Service
MSS Mobile Satellite System
MSS Mobile Support Station
MSS Multimedia System Services
MSS Multiple SMP Support
MSS Multiprotocol Switched Services
MSS Multi-Spectral Scanner
MSSC Message Switch Simplex Cabinet
MSSC Mobile Satellite Switching Centre
MSSE Message Submission Service Element
MSSF Mate Scanner Stop Failure
MSSI Mid-Span Spectral Inversion
MSSI Mid-System Spectral Inversion
MS-SPRING Multiplexer Section Shared Protection Ring
MSSW Magnetostatic Surface Wave
MST Maintenance State Table
MST Marconi Systems Technology
MST Message Sequence Thread
MST Minimum Spanning Tree
MST Mountain Standard Time
MST Multiple Service Terminal (RACE)
MST Multiplex Section Termination
MST Multi-Service Terminal
MSTCM Multiple Store Types Class Manager
MSTE Multiplex Section Terminating Equipment
MSTP Multiple Spanning Tree Protocol
MSTR Maximum Sustained Transmission Rate
MSTV Maximum Service Television
MSU Maintenance Signal Unit
MSU Management Signal Unit
MSU Message Service Unit (NetView)
MSU Message Signal Unit
MSU Metallic Services Unit
MSU Mobile Subscriber Unit
MSU Multiblock Synchronization Unit
MSU Multiple Signal Unit
MSU Multipoint Signaling Unit
MSUX Mass-Storage Unit specifier
MSV Major Software Vendor
MSV MTX Service Code Dialing
MSV Multiple Speed Variant
MSVC Meta-Signaling Virtual Channel
MSVC Microsoft Visual C++
MSVC MTX Service
MSVC++ Microsoft Visual C++
MSVCI Metasignaling Virtual Channel Identifier
MSVI Metasignalling Virtual Channel Identifier
MSW Machine Status Word
MSW Microsoft Windows
MSW Most Significant Word
mswm Microsoft Windows Windows Manager
MSX MicroSoft (Inc.) eXtended basic
MSX Mobile Services Exchange
MSYNC Master Synchronization
MT ISO country code for Republic of Malta
MT Machine Translation
MT Magnetic Tape
MT Maintenance
MT Management Tool
MT Measured Time
MT Mechanical Transfer
MT Message Transfer
MT Message Type
MT Mobile Terminal
MT Mobile Terminated
MT Mobile Termination
MT MultiThread
MT Multi-Threaded
MT U.S. postal code for Montana
MT (0,1,2) Mobile Termination
MT&T Maritime Telegraph and Telephone Company
MTA Mail Transfer Agent
MTA Mail Transport Agent
MTA Maintenance Set Allowed
MTA Major Trading Area
MTA Message Transfer Agent
MTA Message Transport Address
MTA Message Transport Agent
MTA Metallic Test Access
MTA Multimedia Terminals and Applications
MTAC Mathematical Tables and other Aids to Computation
MTAE Message Transfer Agent Entity
MTAE Metallic Test Access Equipment
MTAE Multi Terminal ASCII Emulator (IBM)
MTAR Multiple Terminal Address Registration
MTAS Maintenance Trunk Access System
MTAU Metallic Test Access Unit
MTB Metallic Test Bus
MTBB Mean Time Between Breakdowns
MTBCF Mean Time Between Component Failures
MTBCF Mean Time Between Critical Failures
MTBD Mean Time Between Degradations
MTBDL Mean Time Before Data Loss
MTBE Mean Time Between Errors
MTBF Mean Time Between Failures
MTBF Mean Time Between Faults
MTBI Mean Time Between Interruptions
MTBO Mean Time Between Outages
MTBO Mean Time Between Overhauls
MTBP Mean Time Between Pointers
MTBSO Mean Time Between Service Outages
MTC Magnetic Tape Cartridge
MTC Magnetic Tape Center
MTC Magnetic Tape Controller
MTC Main Transit Center
MTC Maintenance
MTC Maintenance Task
MTC Maintenance, Timing, and Control
MTC Master Test Component
MTC Matrix-to-Cross-Thread Index
MTC Mini Test Cycle
MTC Mobile Terminating Call
MTC Mobile-Terminated Call
MTCB Maintenance Base
MTCE Maintenance
MTCELIMD Maintenance Limited
MTCK Maintenance Check
MTCNF Meet Me Conference Circuits
MTCP Mobile Transmission Control Protocol
MTCSI Maintenance Software Interface
MTCT Multi-Test Case Table
MTCXO Mathematically Temperature-Controlled Crystal Oscillator
MTD Magnetic Tape Drive
MTD Maintenance Set Denied
MTD MDII: Address Signaling Error- Mutilated Digit
MTD Memory Technology Driver
MTE Meridian Terminal Emulation
MTE Metallic Test Equipment
MTE Module Test Equipment
MTEX Multi-Tasking Executive
MTF Master Trouble File
MTF Microsoft Tape Format
MTF Modulation Transfer Function
MTG Main Traffic Group
MTG Multi-Tasking Graphics
MTI Moving Target Indicator (radar)
MTIE Maximum Time Interval Error
MTL Message Transfer Layer
MTL Message Transfer Layer (X.400)
MTL Montreal
MTL Multichannel Telecommunications Link
MTM Maintenance Trunk Module
MTM Milestone Task Manager
MTM Miscellaneous Trunk Module
MTM Mobile-To-Mobile
MTM Mobile-To-Mobile (call)
MTM Module Test and Maintenance
MTMP Magnetic Tape Maintenance Package
MTN Mega Transport Network
MTNJ Morristown, New Jersey
MTNN Multi-Telecommunications-Network Navigation
MTO Multitraffic Office
MTOPS Million Theoretical Operations Per Second
MTP Magnetic Tape Processor
MTP Master Time Plan
MTP Message Transfer Part
MTP Message Transfer Part (of ITU-T Signalling System No. 7)
MTP Mobile Transport
MTP Multicast Transport Protocol
MTP Multimedia Transport Protocol
MTP2 Message Transfer Part 2
MTR Mean Time to Repair
MTR Metering
MTRP Magnetic Tape Read and Print Program
MTRS Message Transport and Routing Service
MTS Manitoba Telephone Services
MTS Manitoba Telephone System
MTS Mechanized Translations System
MTS Member of Technical Staff
MTS Message Telecommunications Service
MTS Message Telephone Service
MTS Message Transfer Service
MTS Message Transfer Service (X.400)
MTS Message Transfer System
MTS Message Transmission Subsystem
MTS Message Transport System
MTS Methods for Testing and Specification
MTS Methods for Testing and Specification (ETSI TC, former ATM)
MTS Michigan Terminal System
MTS Microsoft Transaction Server
MTS Mobile Telephone Service
MTS Multichannel Television Sound
MTSE Message Transfer Service Element
MTSE Multiplex Table Signalling Entity
MTSO Mobile Telecommunications Switching Office
MTSO Mobile Telephone Switching Office
MTSP Mag Tape Summary Program
MTSR Mean Time to Service Restoral
MTT Mobile Test Terminal
MTT Multi-Transaction Timer
MTTD Mean Time To Diagnose
MTTF Mean Time To Fail
MTTF Mean Time To Failure
MTTFF Mean Time To First Failure
MTTR Mean Time To Repair
MTTR Mean Time To Restore
MTTS Meridian Text Telephony System
MTTSR Mean Time To Service Restoral
MTTY Maintenance TTY
MTU Magnetic Tape Unit
MTU Maintenance Terminating Unit
MTU Maintenance Termination Unit
MTU Maximum Transfer Unit
MTU Maximum Transmission Unit
MTU Maximum Transmittable Unit
MTU Maximum Transport Unit
MTU Metallic Test Unit
MTU Mobile Terminating Unit (TETRA)
MTU Multiline Test Unit
MTU Multiport Transceiver Unit
MTUP MCI TUP
MTV Mountain View
MTV Move-To-Vacant
MTV Music Television
MTWX Mechanized Teletypewriter Exchange
MTX Matrix
MTX Mobile Telephone Exchange
MTX Multiplexor Session
MTX Multiplexor Transactor
MU ISO country code for Mauritius
MU Mark Up
MU Memory Unit
MU Message Unit
MU Missed or Unprocessed
MU Mobile User
Mu Muenztelefon (Payphone)
MU Multidestinational Unidirectional
MU Multiple Directional, Unidirectional
MU Multipoint Unit
MUA Mail User Agent
MUA Maintenance Group Unblocking Acknowledgement Signal
MUAG Military Users Advisory Group
MUB Multi-Use Bearer
MUBS Multi-Use Bearer Service
MUBW Minimum Usable BandWidth
MUD Memory Usage Database
MUD Multiple User Dialogue
MUD Multiple User Dimension
MUD Multiple User Dungeon
MUD Multi-User Domain
MUF Maximum Usable Frequency (Short Wave Propagation)
MUF Maximum Useable Frequency
MUFASA Multiple-FPGA Alternative SIMBA Architecture
MUI Multimedia User Interface
MULDEM Multiplex/Demultiplex
MULDEX Digital Multiplexer Plus Demultiplexer
MULDEX MULtiplexer-DEmultipleXer
MULE Minimal USES List Enforcement
MULTICS Multiuser Interactive Computer System
MUM Multi-Unit Message
MUMPS Massachusetts General Hospital Utility Multi-Programming System
MUMPS Massachusetts general hospital Utility MultiProgramming System
MUMR Multiunit Message Rate
MUMS Multi User Mobile Station
MUMS Multiprocessor Utility and Monitoring System
MUP Management of User Ports
MUP Millenium Update Program
MUPID MultiUse Programmable Intelligent Decoder
MUS Music
MUSA Multiple-Unit Steerable Antenna
MUSC Multi User Signaling Channel
MUSE Multiple Sub-Nyquist Sampling Encoding
MUSE MUltiple sub-nyquist Sampling Encoding (HDTV)
MUSE Multi-User Shared Environment
MUSE Multi-User Simulation Environment
MUSH Multi-User Shared Hallucination
MUSI Macintosh/UNIX Systems Integration
MUSICAM Masking-pattern adapted Universal Sub-band Integrated Coding And Multiplexing
MUT Master Upper Tester
MUT Mean Up Time
MUT Modem Under Test
mutex Mutual Exclusion
MUX MUltipleX (multiplexer)
MUX Multiplexer
MUX MUltipleXer
MUX time MUXtiplexor
MUX1.2 Signalling MUltipleX Mode 1 (two-bit signalling)
MUX1.4 Signalling MUltipleX Mode 1 (four-bit signalling)
MUX2 Signalling MUltipleX Mode 2
MUX3 Signalling MUltipleX Mode 3
MV ISO country code for Republic of Maldives
MV Machine Vision
MV Mandatory Variable Length
MV Market View
mV Millivolt(s)
MV Motion Vector
MVAS Multi-Vendor Application Support+B3857
MVC Manual Volume Control
MVC Model-View-Controller
MVC Multivendor Capability
MVC Multivendor Capacity
MVCC Metasignaling Virtual Channel Connection
MVD Motion Vector Data
MVDM Multiple Virtual DOS Machine
MVDS Microwave Video Distribution Service
MVDS Microwave Video Distribution System
MVDS Multipoint Video Distribution System
MVFS Multiversion File System
MVGA Monochrome Video Graphics Array
MVI Multiple-Vendor Interface
MVI Multi-Vendor Interactions
MVIP Multi-Vendor Integration Protocol
MVM Meridian Voice Mail
MVME Motorola VME
MVN Multimedia Virtual Network
MVP Multiline Variety Package
MVP Multimedia Video Processor
MVP Multiple Vendor Program
MVP1D Multiline Variety Package 1-Digit
MVP1NL Multiline Variety Package 1-Digit Number List
MVP1SH Multiline Variety Package 1-Digit Shared List Owner
MVP2D Multiline Variety Package 2-Digit
MVP2NL Multiline Variety Package 2-Digit Number List
MVP2SH Multiline Variety Package 2-Digit Shared List Owner
MVPSH1 Multiline Variety Package Shared 1-Digit
MVPSH2 Multiline Variety Package Shared 2-Digit
MVR Multiple Virtual Router
MVS Multiple Virtual Storage
MVS Multiple Virtual System
MVS Multipoint Video Service
MVS Multipoint Videoconferencing Service
MVS/ESA Multiple Virtual Storage/Extended System Architecture
MVS/TSO Multiple Virtual Storage /TSO (IBM)
MVS/XA Multiple Virtual Storage/Extended Architecture
MVSt Muttervermittlungsstelle (parent exchange for foreign connection)
MVT MoVemenT
MVT Multiprogramming with a Variable Number of Tasks
MW ISO country code for Republic of Malawi
MW Medium Wave
MW Medium Wave (500...1600 kHz)
MW Message Waiting
MW Microwave
MW Milliwatt Test Line
mW Milliwatt(s)
MW Multilink Window
MW Multiwink
MW Multiwink Signaling
MWB Monitoring Workbench
MWBL Milliwatt Balanced Line
MWC Message Waiting Center
MWC Multi-Way Call
MWC Multi-Way Calling
MWCAM Multi-Way Calling for Analog Member of EKTS
MWI Message Waiting Indication
MWI Message Waiting Indicator
MWIC Message Waiting Indicator Control
MWICB Message Waiting Indicator Control Billing Records
MWID Message Waiting Indicator Deactivation
MWIDACC Message Waiting Indicator Deactivation Access Code
MWIDB Message Waiting Indicator Deactivation Billing Records
MWIDC Message Waiting Indication
MWIDGID Message Waiting Indicator Control Default Group Identifier
MWIMAX Maximum Number of Outstanding MWI Control Requests
MWINUM Number of Message Waiting Indicators Assigned
MWL Message Waiting Lamp
MWLC Modular World Line Card
MWM Motif Window Manager
mwm Motif Window Manager
MWN Message Waiting Notification
MWP Message Waiting Point
MWPT Message Waiting Point
MWPTAM Message Waiting Point for Analog Member of EKTS
MWQ Message Waiting Query
MWQRY Message Waiting Query
MWT Message Waiting
MWT Message Waiting Tone
MWTN Multiwavelength Transport Network
MX ISO country code for United Mexican States (Mexico)
MX Mail Exchange
MX Mail Exchanger
MX Mixed
MX MultipleXor
MXM Misaligned Access Enable
MXR Multiplexer
MXRVO Multiple Transmit/Receive Virtual Overhead
MXU Message Transfer Unit
MY ISO country code for Malaysia
MY Man-Year
MZ ISO country code for People's Republic of Mozambique
MZ Mark Zbikowski
n nano (10-9)
N Negative
N Network
N Network Layer
N Network Layer Service
N Neutral conductor
N newton
N Nibble
N No
N Node
N Noise
N None
N Normal
N North
n Number (short or int)
N(R) Receive Sequence Number
N(R) transmitter receive sequence number
N(S) Send Sequence Number
N(S) transmitter send sequence number
N(S)N National (Significant) Number
N/A Not Applicable
N/A Not Available
N/C Normally Closed
N/C Numerical Control
N/I Noise to Interference Ratio
N/O Normally Open
N/S Not Supported
N/W Network
N1 Maximum number of bits in an X.25 frame
as defined in Recommendation X.25, § 2.4.8.5 (LAPB)
N11 N11 Trigger
N11SC N11 Service Codes
N1X75 X.75 Parameter N1 (Maximum Number of Bits in an InformationFrame)
N2 Maximum Number of Attempts to Complete a SuccessfulTransmission, LAPB
N2 Maximum number of attempts to complete a transmission
N200 LAPD Number of Retransmittals Before Recovery Procedure
N200P LAPD Number of Retransmittals Before Recovery Procedure, for PRI
N2X75 X.75 Parameter N2 (Maximum Number of Attemps to Complete aTransmission)
N6 Number 6 Signaling
N6TU Number 6 Signaling Test Unit
NA ISDN Calling Name Identification Services
NA ISO country code for Namibia
NA National
NA Network Access
NA Network Adapter
NA Network Address
NA Network Architecture
NA Network Aspects (ETSI TC)
NA Night Alarm
NA No Assurance
NA North America
NA North American
NA Not Accessible
NA Not Applicable
NA Not Available
NA Numerical Aperture
NAA Node Administrator Application (DSA-Bull)
NAAD Nortel Access Authentication Daemon
NAAG North American Architecture Guild
NAB National Association of Broadcasters (USA)
NAB Netscape Application Builder
NABER National Association of Business and Educational Radio
NABTS National Association of Broadcast Transmission Standards
NABTS North American Basic Teletext Specification
NAC Network Access Corporation
NAC Network Administration Center
NAC Network Administrative Center
NAC Network Attendant Console
NAC Node Access Control
NAC Node Administration Card
NAC Non-Area Code
NACD Network Automatic Call Distribution
NACD Networked Automatic Call Distribution
NACK Negative Acknowledgement
NACK No ACKnowledgment
NACN North American Cellular Network
NACP North Atlantic Consultative Progress (CEPT-FCC)
NACS Network Asynchronous Communication Server
NACS No Active-Channel Selector
NAD Network Access Device
NADC North American Digital Cellular
NADC Not-Acceptable Data Code
NADF North American Directory Forum
NAE Network Address Extension
NAFIN Netherlands Armed Forces Integrated Network
NAFTA North American Free Trade Agreement
NAG Node Assessment Graph
NAG Numerical Algorithms Group
NAIS Network Access Interface Specification
NAK Negative Acknowledge
NAK Negative Acknowledgement
NAL Network Access Line
NAL Not Allowed
NAL Novell Application Launcher
NAM Network Access Method
NAM Network Access Module
NAM Number Assignment Module
NAMA North America Mobile Association
NAMAS National Measurement Accreditation Service
NAMF North American Multifrequency
NAMPS Narrowband Advanced Mobile Phone Service
NAMPS Narrowband Advanced Mobile Phone System
N-AMPS Narrowband Advanced Mobile Phone System
NAMTYP Name Delivery Type
NAN Neighborhood Area Network
NAN Network Access Node
NAN Norton Administrator for Networks
NAN Not a Number
NaN Not a Number
NAN Not-a-Number
NANA ASZ National Operator Signal message
NANA CBK National Clearback message
NANA EHZ National Onhook Signal message
NANA GRQ National General Request message
NANA GSM National General Forward Setup Information message
NANA IDE National Identification End message
NANA IDF National Identification message
NANA RAN National Re-Answer message
NANC North American Numbering Council
NANOG North American Network Operators' Group
NANP North American Numbering Plan
NANPA North American Numbering Plan Administration
NANPA North American Numbering Plan Administrator
NAP Network Access Point
NAP Network Access Provider
NAP Network Adjunct Peripheral
NAP Network Agent Protocol
NAP Network-Access Protocol
NAP Normal Approval Procedure (ETSI)
NAPI Numbering and Addressing Plan Indicator
NAPI Numbering/Address Plan Identifier
NAPLP North American Presentation Layer Protocol
NAPLPS North American Presentation Layer Protocol Syntax
NAR Name and Reason
NARC Node Aspect Return Code
NARC Non-Automatic Relay Center
NARP NBMA Address Resolution Protocol
NARRG North American Repair and Remanufacture Group
NARS Network Access Registers
NARS Network Alternate Route Selection
NARUC National Association of Regulatory and Utility Commissioners
NAS Netscape Application Server
NAS Network Access Server
NAS Network Access Signaling
NAS Network Administration System
NAS Network Analysis System
NAS Network Application Support
NAS Network Applications Services
NAS Network Applications System
NAS Network Attendant Service
NAS Nominal Aggregate Signal
NAS North American Standard
NASA National Aeronautic and Space Administration (USA)
NASC 800 Number Administration and Service Center
NASI NetWare Asynchronous Services Interface
NASNA National Association of State Nine-One-One Administrators
NASP Network Application Service Part
NASS Network Access Signalling System
NAT NATural unit of information control, information content natural unit
NAT Network Address Translation
Nat Network Address Translator
NATA North American Telecommunications Association
NATO North Atlantic Treaty Organisation
NATOA National Association of Telecommunications Officers & Advisors
NATS National Air Traffic Services
NATS North American Terrestrial System
NATTA Not AT&T Anymore
NAU Network Access Unit
NAU Network Addressable Unit (SNA)
NAU Network-Accessible Unit
NAV Net Allocation Vector
NAV Network Allocation Vector
NAV Network Applications Vehicle
NAV Norton AntiVirus
NAWS Negotiate About Window Size
NAXLAR North American Translations and Routing
NB Narrowband
NB Network Buffer
NB New Band
NB Non-Blocking
NB Normal Burst
NB Nota Bene (Mark Well)
NB Postal code for New Brunswick
NBBS Networking BroadBand Services
NBC National Broadcasting Company Inc. (USA)
NBC Network Bearer Channel
NBC Number of B-Channels
NBCCTOEDN Number of On-Demand B-Channels Per Call Type Per OE/DN
NBD Next Business Day
NBDG New Business Development Group
NBEC Non-Bell Exchange Carrier
NBF NetBEUI Frame
NBF CP NetBIOS Frames Control Protocol
NBFCP NetBIOS Frames Control Protocol
NBFM Narrow Band Frequency Modulation
NBH Network Busy Hour
NBI Northern Business Information
NBIN A parameter in the hopping sequence
NBL Notification Busy Limit
NBLH Network Blockage Heavy Traffic Treatment
NBLN Network Blockage Normal Traffic Treatment
NBM National Backward Message
NBMA Non-Broadcast Multiple Access
NBMS Nortel Business Management System
NBN Nonblocking Network
NBNS NetBIOS Name Server
NBO Network Build-Out
NBOC Network Build-Out Capacitance
NBOR Network Build-Out Resistance
NBS National Bureau of Standards (USA, now NIST)
NBS New British Standard
NBSS Nortel Base Station Subsystem
NBSV Narrow Band Secure Voice
NBT NetBIOS Over TCP/IP
NBTel New Brunswick Telephone
NBTR Narrow Band Tape Recorder
NBU Nortel Business Unit
NBVM Narrow Band Voice Modulation
NC ISO country code for New Caledonia
NC National Committee (CEN)
NC Netscape Communicator
NC Network Channel
NC Network Cluster
NC Network Computer
NC Network Computing
NC Network Congestion
NC Network Connect(ion)
NC Network Control
NC Network Controller
NC Network Crosspoint
NC No Circuit
NC Normally Closed
NC Normally Closed (Switch/Relay Contacts)
NC Not Connected
NC Number Complete indication
NC Numerical Control
NC U.S. postal code for North Carolina
NCA Network Computing Architecture (IBM)
NCA No-Circuit Announcement
NCA Non-Call Associated
NCAP Number of Call Appearances
NCAPI Netscape Client API
NCAR National Center for Atmospheric Research
NCAS Non-Call-Associated Signaling
NCB NetBIOS Control Block
NCB Network Control Block
NCC National Color Code
NCC National Computer Conference (USA)
NCC National Computing Center (UK)
NCC National Computing Center for OSTC
NCC National Co-ordination Centre
NCC Network Centric Computing
NCC Network Colour Code
NCC Network Communications Corporation
NCC Network Control Center
NCC Network Coordination Centre
NCC New Common Carrier
NCC Public Land Mobile Network Colour Code
NCCD Network dependent Call Connection Delay
NCCE Novell Collaborative Computing Environment
NCCF Network Communication Control Facility (NetView)
NCCF Network Communications Control Facility
NCCI Network Call Correlation Identifier
NCCI Network Control Center Interface
NCCI New Common Carrier Interface
NCCL Network Controlled Coin Line
NCCR Non-Continuous Coverage Region
NCCU North Carolina Central University
NCD Network Call Distributor
NCD Network Computing Devices
NCD Non-Check Dummy Character
NCDA No Call Delivery Activatable
NCDA No Call Delivery Activation
N-CDMA Narrowband CDMA
NCE Network Connection Endpoint
NCE Nomadic Computer Environment
NCEG Numerical C Extensions Group
NCEITA North Carolina Electronics and Information Technologies Association
NCELL Neighbouring (or current serving) CELL
NCF National Communications Forum
NCF Netware Configuration File
NCF Network Control Facility(ies)
NCFU Network Call Forwarding Universal
NCG Network-side Command Generator
NCGA National Computer Graphics Association (USA)
NCGN Calling Name
NCGN North Carolina GigaNet
nCgPC National Calling Party Category
NCHO Network Controlled Handover
NCI Network Channel Interface
NCI Network Component Interface
NCICS Networked Call-Independent, Connection-Oriented Signalling
NCID Network Clear Indication Delay
NCIH North Carolina Information Highway
NCIL Network Controlled Inmate Line
NCL Neighbor Cell List
NCL Network Control Language (IBM)
NCL Non CM Load
NCL Novatel Communications Ltd.
NCLK Network Clock
NCM Network Channel Manager
NCM Network Cluster Member
NCMS Network Connection Management Subprotocol (ISO)
NCNL Network Controlled Non-Coin Line
NCO Network Camp-On
NCO Network Control Office
NCO Numerically Controlled Oscillator
NCON Connected Name
NCOP Network Code Of Practice (ETSI)
NCOS Network Class of Service
NCOSE National Council on Systems Engineering
NCP NetWare Core Protocol
NCP Network Control Point
NCP Network Control Processor
NCP Network Control Program (SNA)
NCP Network Control Protocol
NCP Network Controller Processor
NCPAS Network Control Point Administration System
NCR National Cash Register Company
NCR Network Completion Reports
NCR Network-generated Call Reference
NCR No Circuit Available, Circuit Request Left
NCR Non-Call Related
NCR Null Call Reference
NCREN North Carolina Research and Education Network
NCRT No-Circuit Route Treatment
NCS National Communication(s) System
NCS Network Clock Synchronization
NCS Network Combiner and Switching
NCS Network Computing System (Apollo)
NCS Network Control Station
NCS Network Control System
NCS Network Coordination Station
NCS NORTEL Communications Systems
NCSA National Center for Supercomputing Applications
NCSA National Computer Security Association
NCSC National Computer Security Center
NCSI Network Communications Services Interface
NCSK Network-Controlled Soft Key
ncsl Non-Commentary Source Lines
NCSU North Carolina State University
NCT Network Control and Timing
NCT Night Closing Trunk
NCT No Call Transfer
NCTA National Cable Television Association
NCTC Network Configuration Tracking Capability
NCTE Network Channel Terminating Equipment
NCU NEAT Communication Unit
NCU Node Control Unit
NCUG National Centrex User Group
NCWV Noncall Work Volume
ND Neighbor Discovery
ND Network Equipment Building System Data
ND Non-Directional (antenna)
ND Nortel Dasa
ND Number Delivery
ND U.S. postal code for North Dakota
NDA National Directory Assistance
NDA Network Design and Analysis Corp.
NDA Non-Disclosure Agreement
NDAC No Data ACcepted (IEEE-488 Bus Signal)
NDB Network Data Base
NDB Network Database
NDB Network-Determined Busy
NDB Non Directional Beacon
NDBM New Database Manager
NDC National Destination Code
NDC Network Data Collection
NDC Network Destination Code
NDC No Double Connect
NDC Normalized Device Coordinates
NDCOS Network Data Collection Operations System
NDD Network Diagnostic Division
NDES Normal Digital Echo Suppressor
NDF New Data Flag
NDFA Non-Dedicated File Area
NDFSM Non-Deterministic Finite State Machine
NDIS Network Device Interface Specification
NDIS Network Driver Interface Specification
NDL Natural Database Language
NDL Non-Defined Customer Location
NDLC Non-Data-Link Console
NDM Network Data Model
NDM Network Data Mover
NDM Normal Disconnected Mode
NDN National Data Number
NDN Non-Delivery Notification
NDP Numeric Data Processor
NDPS NetWare Distributed Print Services
NDPS Nondisruptive Path Switch(ing)
NDPS Nonstandard Default Packet Sizes
NDPS Novell Distributed Print Services
NDR Network Data Representation
NDR Non-Delivery Report
NDR Non-Destructive Read
NDRO Non-Destructive Read Out
NDS NetWare Directory Services
NDS Network Data System
NDS Novell Directory Services
NDS1 Number of DS1 Facilities
NDSE National Data Switching Exchange
NDSF Non-Dispersion-Shifted Fiber
NDT Net Data Throughput
NDT No Dial Tone
NDT Non-Destructive Testing
NDU Network Data Unit
NDUB Network-Defined User Busy
NDVA Network Design & Validation Authority
NDW Norton Desktop for Windows
NDWS Nonstandard Default Window Sizes
NE ISO country code for Republic of the Niger
NE Near End
NE Negotiated Exit
NE Network Element
NE Network Entity
NE Network Equipment
NE New Executable
NE Northeast
NE Northern Electric
NE Not Equal To
NE Numeric Error
NE Numeric Exception
NE U.S. postal code for Nebraska
NEA NEtwork Architecture (Siemens)
NEA Non-Equal Access
NEAB NEA User Layer Protocol (Siemens)
NEAN NEA Network Layer Protocol (Siemens)
NEAT Network Evaluation and Test System
NEATE NEA Transport Layer Protocol (Siemens)
NEB Netscape Extension Builder
NEBE Near End Block Error
NEBS Network Equipment-Building System
NEBSFR Network Equipment- Building System Family of Requirements
NEC National Electrical Code
NEC National Electronics Conference
NEC Nederlands Elektrotechnisch Comite (NL)
NEC New Entrant Carrier
NEC Nippon Electric Comp. (JAP)
NEC Northern Electric Company
NECA National Exchange Carrier Association
NECM Network Element Configuration Management
NECOS Network Coordinating Station
NECQ National Electronic Components Quality
NECRD NEC Reasearch and Development (periodical)
NECS Network Element Capability Specification
NECTI Network Enabled Computer Telephony Integration
NED National ETSI Delegation
NEDT Network Editor Tools
NEED Nodal End-to-End Data message
NEF Network Element Function
NEF/CA Network Element Function/Capability Assignment
NEFA Near End Failure
NEG Negative
NEGT Near End (Initiator) Global Title
NEGX Negate with Extend (680x0 inst)
NEI Network Element Interface
NEI Network Entity Identifier
NEI Network Equipment Identifier
NEIT Negative Enhanced Imaging Technology
NEK Norsk Elektroteknisk Komite (N)
NEL Network Element Layer
NEL Next Event List
NEL Next Line
NELB Near-End Loopback
NEM Network Element Management
NEM Network Event Monitor (Bell)
NEMA National Electrical Manufacturers Association (USA)
NEMA Network Element Memory Administration
NEMAC Network Management and Control
NEMESYS Network Management Expert System
NEMKO Norwegian Board for Testing and Approval of Electrical Equipment
NEMOS Network Management Operations System
NEMP Nuclear ElectroMagnetic Pulse (EMI)
NEMS Network Executive Message Service
NEMW Network Executive Message Waiting
NENA National Emergency Number Administrators
NEO Network Objects
NEO Networked Objects
NEOFF Near-End Office
Nep NailedUpEndPoint
NEP Noise Equivalent Power
NEPC Near End (Initiator) Point Code
NEQ Not Equipped
NERA National Economic Research Associates
NERVE Network Evaluation, Reporting and Verification
NES Network Encryption System
NES Non-Expanded Spectrum
NESAC National Electronic Systems Assistance Center
NESC National Electrical Safety Code
NESP Near End (Initiator) Signalling Point
NEST Novell Embedded Systems Technology
net Major network support centers domain
NET Network
NET New England Telephone
NET Norme Européenne de Télécommunication
NET Null End-Tag
NETBEUI NETBios Extended User Interface (IBM)
NetBIOS Network Basic Input/Output System
NETBLT Network Block Transfer
NETC Network Combined
NETC Network Evaluation and Test Center
NETCGID Network Customer Group Identifier
NETD Noise-Equivalent Temperature Difference (Thermometry)
NETG National Educational Training Group
NETI Network Management International
NETID NETwork IDentification (SNA)
NetLS Network License System
NETM Network Maintenance
NETMATE NeETwork Management Analysis and Testing Environment
NETRAG Network Ring Again
NETS Nationwide Emergency Telecommunications Service
NETSTAR Network Subscriber Transaction and Recording System
NEV Network Event
NEW Establish service
NEWACD Establish new Automatic Call Distribution set
NEWDN Assign block of DNs, RCF
Newi New World Infrastructure
NEWRO New Responsible Organization
NEWS NetWare Early Warning System
NEWS Network Error Warning System (Net/Master, IBM)
NeWS Network-Extensible Window System
NEXT Near-End Crosstalk
NF ISO country code for Norfolk Island
NF Nested Flag
NF Network Function
NF Node Function
NF Noise Factor
NF Noise Figure
NF Normal Frame
NF Not Found
NF Notch Filter
NF NUI Format
NF Postal code for Newfoundland
NFA Network Facility Access
NFA Network File Access (MAP/TOP- upper 3 layers from IBM, Intel, Microsoft)
NFA Nondeterministic Finite Automaton
NFAS Non-Facility Associated Signaling
NFE Network Facilities Extension
NFE New Front End
NFET N-Channel Junction Field-Effect Transistor
NFF Neutral File Format
NFF No Fault Found
NFI Network Function Identification
NFM National Forward Message
NFM Network File Manager
NFOEC National Fiber Optic Engineering Conference
NFOS Near Field Optical Scanning
NFP Nonpreemptive Fixed Priority
NFP Note Format Parameter
NFPA National Fire Protection Association
NFR Near-Field Recording
NFS Name File System
NFS Network File System (SUN)
NFY Notify
NG ISO country code for Federal Republic of Nigeria
NG Newsgroup
NG Next Generation
NG Noise Guard
NG Non-Gating
NG Number Group
NGDLC Next-Generation Digital Loop Carrier
NGI Next Generation Internet
NG-IDLC Next Generation Integrated Digital Loop Carrier
NGIS Next Generation Information System
NGLC New Generation Line Circuit
NGN Next Generation Network(s)
NGN Next Generation Node
NGN-CS NGN Call Server
NGN-MSH NGN Multi-Services Hub
NGO Nongovernment Organization
NGP Next Generation Products
NGS Next Generation Switch
NGSO Non-Geostationary Satellite Orbit
NH National Host
NH Network Header
NH U.S. postal code for New Hampshire
NHB Non-Hard-Blocking
NHC Negative High Current
NHC Next Hop Client
NHC NHRP Client
NHD Networking Hardware Division
NHK Nippon Hoso Kyokai
NHLF Network High Level Function
NHLFE Next Hop Label Forwarding Entry
NHN Non-Hunt Terminal
NHOB Non-specific Hierarchical Operational Binding
NHRP Next Hop Resolution Protocol
NHRP Next Hop Routing Protocol
NHS Next Hop Server
NHS NHRP Server
NHT No Hazard Test
NHTML Netscape HTML
NI ISO country code for Republic of Nicaragua
NI National Indicator
NI National ISDN
NI Network Identifier
NI Network Identity
NI Network Indicator
NI Network Interconnect
NI Network Interconnection
NI Network Interface
NI Network Inventory
NI New Instructions
NI No Impact
NI No Increase
NI Non-Interlaced
NI Normalized Indicator
NI Notification Indicator
NI Number Incomplete Indicator
NI-1 National ISDN-1
NI-2 National ISDN-2
NI-3 National ISDN-3
NIA Network Information Appliance
NIA Network Interface Adapter (OSI-SNA)
NIA Number of Initial Address
NIB Negative Impedance Booster
NIB Network Indicator Bit
NIC National ISDN Council
NIC Near-Instantaneous Companding
NIC Nearly Instantaneous Companding
NIC Negative Impedance Converter
NIC Network Independent Clock
NIC Network Independent Clocking
NIC Network Information Center
NIC Network Interface Card
NIC Not In Context
NIC2S Network-Intensive Computing and Communicating Systems
NiCad Nickel Cadmium
NICAM Near-Instantaneous Companded Audio Multiplex
NICAM Nearly-Instantaneous Companded Audio Multiplex
NICC Network Interoperability Consultative Committee
NICE Network Information Control Exchange (DECnet protocol)
NICE Nonprofit International Consortium for Eiffel
NID Network Identifier
NID Network Interface Device
NID Network Inward Dialing
NID Next IDentification
NIDL Network Interface Definition Language
NIF Neighborhood Information Frame
NIFC Netscape Internet Foundation Classes
NIFE Near Inhibition Far Excitation
NIH National Institutes of Health
NIH Not Invented Here
NIHCL National Institutes of Health Class Library
NII National Information Insfrastructure (USA)
NII Network Independent Interface
NIIF Network Interconnection & Interoperablity Forum
NIIT National Information Infrastructure Testbed
NIK Nickelodeon
NIL Network Interface Layer (DPA)
NIM Network Install Manager
NIM Network Installation Maintenance
NIM Network Interface Module
NIM Number of Inherited Methods
NiMH Nickel-Metal-Hydride
NIN Network Interface Node
NIN Nortel Information Network
NINT Network INTerception (supplementary service)
NIOAG National ISDN Operations Advisory Group
NIOD Network Inward and Outward Dialing
NIP Network Identification Plan
NIP Network Integrated Processing
NIP Network Intelligence Platform
NIP Next Instruction Pointer
NIP Non-Impact Printer
NIR Network Information Retrieval
NIS Name Information Service
NIS Network Information Service
NIS Network Information System
NIS Network Interface Specification
NIS Northern Telecom Interface Specification
NIS Not In Service
NIS+ Network Information Services Plus
NISC Network Information Service Center
NISDN Narrowband ISDN
NISDN National ISDN
N-ISDN Narrow Integrated Services Digital Network
N-ISDN Narrowband ISDN
n-ISDN Narrowband ISDN
N-ISDN Narrow-band ISDN
NISI Network Information Service Infrastructure
NISL Network Interface SubLayer (NIL)
NISO National Information Standards Organization
NISP National Internet Service Provider
NIST National Institute for Standards and Technology (US)
NIT Network Interface Tap
NIT Network Interoffice Transmission
NIT Non-Initializing Terminal
NITEC Northern Ireland Telecommunications Engineering Center
NITS National ISDN Technical Subcommittee
NIU Network Interface Unit
NIUF National ISDN Users' Forum
NIUF North American ISDN Users' Forum
NIU-Forum North American ISDN Users' Forum
NIUG National IGES User Group
NIW Network Interworking
NIX Node Identifier Exchange
NIXCR Notification of Incoming X.25 Call Request
NJ U.S. postal code for New Jersey
NJC Network Junctor Connecting
NJE Network Job Entry
NKP MDII: No Key Pulse
NKRO N-Key-Roll-Over
NKT Nederlands Keuringsinstituut voor Telecommunicatieapparatuur (NL)
NL Call Control-Network Layer (Layer 3) Interface
nl Internet country code for the Netherlands
NL ISO country code for Kingdom of the Netherlands
NL Native Language
NL Network Layer (OSI)
NL Network Link
NL New Line
NL Niederlassung (Branch Office)
NL Noise Limiter
NL Non Listed
NL Non-Loaded
NLA Non-Linear Amplified
NLC Negative Low Current
NLC Number of Logical Channels
NLCB Network Link Control Block
NLCM New LCM
NLDM Network Logical Data Manager (NetView)
NLDM Normalized Logical Data Model
NLFPR Non Linear Fabry-Perot Resonator (optical transistor)
NLM National Library of Medicine (USA)
NLM NetWare Loadable Module
NLM Network Level Management
NLM Network Link Module
NLM Network Lock Manager
NLM Number of Local Methods
NLMS Normalized Least Mean Square
NLO New Licensed Operator
NLOS Non-Line-of-Sight
NLP Natural Language Processing
NLP Nonlinear Processor
NLP Nonlinear Program
NLPID Network Layer Protocol Identifier
NLPS Network Listener Protocol Service
NLQ Near Letter Quality
NLQP Near Letter-Quality Printer
NLR Network Layer Relay
NLR Noise Load Ratio
NLR Non Linear Resistor
NLRI Network Layer Reachability Information
NLS National Language Support
NLS Nonlocking Shift
NLSE Nonlinear Schrodinger Equation
NLSP NetWare Link Services Protocol
NLSP Network Layer Security Protocol
NLSS Non-Locally Switched Special
NLST Non Listed Name
NLT No Line Insulation Testing
NLTS Network Load Test System
nm Nanometer(s)
NM Nautical Mile
NM Network Management
NM Network Manager
NM Network Module
NM Noise Margin
NM Notification Manager
NM Notification Message
NM U.S. postal code for New Mexico
NMA Network Management Application
NMA Network Message Analyzer
NMA Network Monitoring and Administration
NMA Network Monitoring and Analysis
NMAS Network Management System
NM-ASE Network Management Application Service Element
NMB Network Management Busy
NMB Number of Macroblocks
NMC Network Management Center
NMC Network Message Controller
NMC Network Model Coverage
NMC Network Module Controller
NMC Networked Multimedia Connection
NMC New Media Center
NMC Nortel Matra Cellular
NMCS Network Management and Control System
NMCT Network Management Co-ordination Team (ETSI, proposed)
NME Network Management Entity
NME Network Management Equipment
NME Network Media Engine
NME Norton Mobile Essentials
NMF Network Management Forum
NMFA Network Management Functional Area
NMFUD Network Management Functional Unit Deployment
NMG Network Measurements Group
NMI Non-Maskable Interrupt
NMIF Network Management Interface
NMIS Network Management Interface System
NML Network Management Layer
NML Noise Maintenance Limit
NML NM Listener (DECnet)
NMLIS Native Mode LAN Interconnection Service
NMM Network Management Module
NMM Network-Management and Maintenance signal
NMMW Near Millimeter Wave
NMO Network Managed Object
NMO Network Management Option
NMOS N-channel Metal Oxide Semiconductor
NMOS Network Management and Operations Support
NMOSFET n-Type MOSFET
NMP Network Management Position
NMP Network Management Protocol (ATT)
NMP No Modem Pool
NMP NUC Management Process
NMPF Network Management Productivity Facility
NMPF NM Productivity Facility (NetView)
NMPORT Network Module Port
NMR Noise-to-Mask Ratio
NMR Nuclear Magnetic Resonance
NMS NetWare Management Services
NMS NetWare Management System
NMS Network Management Server
NMS Network Management Services
NMS Network Management Signal
NMS Network Management Station
NMS Network Management System
NMS Network Management System/Network Management Station (Internet)
NMS Network Message Service
NMS Networked Multimedia System
NMS Noise Measuring Set
NMS Number of Message Sends
NMSI National Mobile Station Identification
NMSI National Mobile Station Identification number
NMSI National Mobile Station Identity
NMSI Nonmultiplexed Serial Interface
NMSIG Network Management Special Interest Group
NMSSDK NetWare Management System Software Development Kit
NMT National Mobile Telecommunications
NMT Nordic Mobile Telecommunications
NMTI National Message Type Indicator
NMTS Nordic Mobile Telephone System
NMVT Network Management Vector
NMVT NM Vector Transport (NetView-SNA)
NMWI Network Message Waiting Indicator
NN National Network
NN National Number
NN Nearest Neighbor
NN Netscape Navigator
NN Network Node (SNA-IBM)
NN Neural Network
NN Node Number
NN1 Next Name 1
NN2 Next Name 2
NN3 Netscape Navigator Version 3.0
NNC National Network Congestion message
NNC National Network Congestion signal
NND National Network Dialing
NNI Nederlands Normalisatie Instituut (NL)
NNI Nederlands Normalisatie-instituut
NNI Network Node Interface
NNI Network-to-Network Interface
NNID Non-Adjacent Network Identifier
NNM Network Node Manager
NNM Number of New Methods
NNR National Number Routed
NNS NetWare Naming Service
NNSC NSFnet Network Services Center
NNSS Navy Navigational Satellite System
NNTEM Neural Networks Traffic Enforcement Mechanism
NNTP Network News Transfer Protocol
no Internet country code for Norway
NO ISO country code for Kingdom of Norway
NO Normally Open (switch/relay-contacts)
NO6 Number 6 Signaling
NOA Nature of Address
NOA Number of Attributes
NOAA National Oceanic and Atmospheric Administration
NOAA Network Operations Analyzer and Assistant
NOAO National Optical Astronomy Observatories
NoAP Narrowband over ATM Products
NOB Network Operator Byte
NOBCOEDN Number of On-Demand B-Channels Per OE/DN
NOC Nature of Connection
NOC Network Operating Centre
NOC Network Operational Center
NOC Network Operations Center
NOC Number of Children
NOCD Original Called Name
NoCi Nature of Connection Indicator
NOCS Network Operations Center System
NOD Near-On-Demand
NOD Network Operations Domain
NOD Network Outward Dialing
NODAN Noise-Operated Device for Anti-Noise
NOET Network Operations Education and Training
NOF Network Operations Forum
NOF Node Operator Facility
NOF Normal Operational Frames
NOG Network Operators Group
NOGAD Noise-Operated Gain Adjusting Device
NOH Network Overhead
NOH No Receiver Off-Hook Tone
NOI Network Operator Interface (NAA-DSA-Bull)
NOI Notice of Inquiry
NOL Network Operations Layer
NOLM Nonlinear Optical Loop Mirror
NOM Network Order Management
NOMS Network Operations and Management Symposium
NOMS Network Operations Management Services (GNS-BT)
NON-GSO NON-Geo Stationary Orbit
NOP Network Operations Plan
NOP Network Operations Protocol
NOP No Operation
NOP Number Of Packet
NOPMD No Packet Mode Data
NOR Normal
NOR Not OR (function)
NORC Network Operators RACE Committee (CEPT)
NORC Network Operators Research Committee
NOREC No Record
NORGEN Network Operations Report Generator
NORM Normal
NORMA No Remote Memory Access
NORTEL Northern Telecom
NOS Network Operating System
NOS Network Operations System
NOS Next On Stack
NOSC No Service Circuit
NOSFER Nouveau Systeme Fondamental Europeen Reference pour laTransmission Telephonique
NOSFER Nouveau Systeme Fondamental Pour la Determination desEquivalents de Reference
NOSR No Software Resource Treatment
NOT Notification
NOT RDY Not Ready
NOTIFY Notify message
NOTIS Network Operations Trouble Information System
NOTRS No Terminal Responding
NOU Network Operations Unit
NOV News Overview
NOVRAM NOn Volatile Random Access Memory
NOW NAV Operations Workstation
NOW Network of Workstations
NP ISO country code for Kingdom of Nepal
NP National Parameter
NP Network Pause
NP Network Performance
NP Network Peripheral
NP Network Port
NP Network Processor
NP Network Protocol
NP Network Provided
NP Network-Provided
NP New Page
NP Next Page
NP No Prefix
NP No Print
NP No Pulse
NP Node Processor
NP Nondeterministic Polynomial
NP Not Planned
NP Notification Point
NP Number Portability
NP Number Privacy
NP Number Private
NP Numbering Plan
NP ID Network Peripheral Identification
NP&P Network Protection and Power
NPA Numbering Plan Area
NPAC Nortel X.25 Controller
NPAC Number Portability Administration Center
NPAI Network Protocol Address Information
NPC Network Protocol Control (SNA/SAA)
NPCI Network Protocol Control Information
NPCS Narrowband Personal Communications Services
NPD Network Protection Device
NPD Numbering Plan Digit
NPDA Network Problem Determination Application
NPDA Network Problem Determination Application (NetView-IBM)
npdgp No Padgroup
NPDU Network Protocol Data Unit (OSI-NL)
NPE Network-Protection Equipment
NPE Numbering Plan Evolution
NPG Network Product Group
NPI Network Protocol Indicator
NPI New Product Introduction
NPI Null Pointer Indication
NPI Number Plan Identification
NPI Number Plan Indicator
NPI Numbering Plan Identification
NPI Numbering Plan Identifier
NPI Numbering Plan Indication
NPI Numbering Plan Indicator
NPIAC Network Plug-In Administration Center
np-ISMA Nonpersistent Inhibit Sense Multiple Access
NPL National Physical Laboratory (UK)
NPL Network Planning Letter
NPM NetView Performance Monitor (IBM)
NPM New Peripheral Module
NPM New Product Module
NPMA Nonpreemptive Multiple Access
NPN Network Provider Network
NPNB No-Primary/No-Backup
NPO Negative/POsitive zero(-temperature-coefficient capacitor)
NPO New Product Opportunity
NPP Network Programming Platform
NPR National Public Radio
NPR Noise Power Ratio
NPR Non-Primary Residential
NPR Non-Processor Request
NPRM Notice of Proposed Rulemaking
NPRZ Non-Polarized Return-to-Zero (recording)
NPS Network Processing System
NPS Network Provisioning System
NPS Network User Identification Profile Screening
NPS Non-Payer Screening
NPS Non-Prioritized Scheme
NPS Northern Procurement Specification
NPS NUI Profile Screening
NPSC National Protocol Support Center
NPSI NCP Packet Switching Interface
NPSI Network Packet Switching Interface
NPSI NPC Packet-Switched Interconnect (SNA/SAA)
NPSR New Product Summary Report
NPT Network Provided Tones
NPT Non Programmable Terminal
NPT Nortel Post and Telecommunications
NPV Net Present Value
NPX Numeric Processor Extension
NQA Niveau de Qualite Acceptable
NQWV Nonqueue Work Volume
NR ISO country code for Republic of Nauru
NR Network Ready
NR Network Resume
NR Nibble Register
NR Normal
Nr Nummer (Number)
NR/CD Non-Reproducible CD
NR0 Non-Reserved 0
NR1 Non-Reserved 1
NR2 Non-Reserved 2
NR3 Non-Reserved 3
NRA Network Remote Access
NRA Network Routing Address
NRA Non-Resident Area
NRA Notrufamt (Emergency Bureau)
NRAG Network Ring Again
NRA-I NRA-International
NRAM Nonvolatile Random Access Memory
NRAs Notrufanschluss (Emergency Call Lines)
NRC National Research Council of Canada
NRC Network Reliability Council
NRC Network Research Corporation
NRC Network Routing Centre
NRC Non-Recurring Charge
NRC NoRestart Cutover
NRDC Nashville Repair and Distribution Center
NRDY Not Ready
NRE National Reference Exchange
NRE Negative Resistance Elements
NRE Nonrecurring Engineering Cost
NRED Redirecting Name
NREN National Research and Education Network
NREST Number Restrictions
NRFD Not Ready For Data (IEEE-488 Bus Signal)
NRIC Network Reliability and Interoperability Council
NRIM Network Resource Information Model
NRM Negotiated Rule Making
NRM Network Reference Model
NRM Network Resource Management
NRM Network Resource Management message
NRM Network Resource Manager
NRM Normal Response Mode
NRM Notrufmelder (Emergency Caller)
NRM Number of Refined Methods
NRMS Network Reference and Monitor Station
NRN Network Routing Number
Nrp NailedUpRelayPoint
NRP Network Resource Planning
NRPB National Radiological Protection Board
NRS Network Reconfiguration Service
NRS Network Resource Selection
NRS Network Resource Selector
NRS No Restart Swact
NRS Novell Replication Services
NRSC National Radio Systems Committee
NRT Near Real Time
NRT Nonreal Time
NRT Notruftelefon (Emergency Call Telephone)
NRTC National Rural Telecommunications Cooperative
NRTL Nationally-Recognized Testing Lab
nrt-VBR Non-Real-Time Variable Bit Rate
NRU Network Resource Unavailable signal
NRUM Number of Reused Methods
NRV Named Return Value
NRZ Non-Return to Zero
NRZ Non-Return-to-Zero recording,
NRZ-0 Non-Return-to-Zero change-on-zeros recording
NRZ1 Non-Return to Zero Change at Logic 1
NRZ-1 Non-Return-to-Zero change-on-ones recording
NRZ-C Non-Return-to-Zero Change recording
NRZI Non-Return to Zero Inverted
NRZL Non-Return to Zero Level
NRZ-L Nonreturn to Zero-Level
NRZ-M Non-Return-to-Zero Mark recording
NS AT&T Network Systems
NS Name Server
ns nanosecond
NS Netscape
NS Network Series
NS Network Service(s)
NS Network Signaling
NS Network Software
NS Network System
NS New Signal
NS Night Service (supplementary service)
NS No Answer Supervision
NS No Screening
NS Non-Standard
NS Not Screened
NS Not Specified
NS Not Supported
NS Postal code for Nova Scotia
NS OA Network Surveillance Operations Application
NS&C Network Surveillance and Control
NS/CC Network Service/Control Centre
NS/EP National Security/Emergency Preparedness
NSA National Security Agency (USA)
NSA Network Service Agent
NSA Network Signaling Agent
NSA Network Switched Access
NSA Non-Service Affecting
NSAI National Standards Authority of Ireland (IRL)
NSAP Network Service Access Point
NSAPA Network Service Attachment Point Address
NSAPI Netscape Server Application Programming Interface
NSC National Support Center
NSC Network Service Center
NSC Network Services Complex
NSC Network Signaling Channel
NSC Network Specialized Center
NSC Network Speed Call
NSC Network Speed Calling
NSC Network Switching Center
NSC Network Systems Corp.
NSC Non-Standard facilities Command
NSC Number Service Code
NSC Number Services Code
NSCS Network Service Center System
NSCX Network Services Complex
NSD Network Services Division (AT&T)
NSD Network Systems Division
NSDB Network and Services Data Base
NSDN Night Service Directory Number
NSDP Non-Signaling Data Protocol
NSDU Network Service Data Unit (OSI-NL)
NSE Network Services Engine
NSE Network Software Environment
NSE Network Switching Element
NSE Nortel Standard English
nsec Nanosecond
NSEP National Security Emergency Preparedness
NSERC Natural Sciences and Engineering Research Council of Canada
NSET Network Switching Education and Training
NSF National Science Foundation
NSF Network Specific Facility(ies)
NSF Non-Standard Facilities
NSF Norges Standardiseringsforbund (N)
NSFNET National Science Foundation Network (USA, connected to Internet)
NSG Network Subgroup
NSGR Network Systems Generic Requirements
NSH Nashville
NSI NASA Science Internet
NSI Network Solutions, Inc.
NSI Network Surveillance Interface
NSIC Not In Service For Incoming Call
NSK Norsk Standard Krypto
NSL Net Switching Loss
NSL Network Speech Link
NSL Network-to-SLC
NSL Number of Signaling Links
NSLT Narrowband Subscriber Line Terminal
NSM Netscape Server Manager
NSM NetWare Services Manager
NSM Network Services Management
NSM Network Status Monitor
NSMA National Spectrum Managers Association
NSM-I Network Service Module for ISDN
NSN National Significant Number
NSN Network Switch Number
NSO National Standards Organization (ETSI)
NSO Notification Subscription Option
NSP National Signaling Point
NSP Native Signal Processing
NSP Network Service Part
NSP Network Service Participant
NSP Network Service Point
NSP Network Service Protocol (DNA)
NSP Network Service Provider
NSP Network Services Part
NSP Network Services Protocol
NSP New Services Prototyping
NSP Not Sent-Paid
NSPC National Sound-Program Center
NSPMP Network Switching Performance Measurement Plan
NSPS Node Support Software
NSR Network Systems Release
NSR Non-Source Routed
NSS National Standard System
NSS Network and Switching Subsystem
NSS Network Service Solutions
NSS Network Services Software
NSS Network Services System
NSS Network Statistics System (DSM-Tandem)
NSS Network Subscriber Service
NSS Network Subsystem
NSS Network Support Sub-System (GSM term)
NSS Network Support System
NSS Network Surveillance System
NSS Network Switching Subsystem
NSS Network Switching System
NSS Nodal Switching Subsystem
NSS Non-Standard Set-up
NSS Novell Storage Services
NSSA Network Services and Software Applications
NSSA Not So Stubby Area
NSSC Network Services Surveillance Center
NSSCDT NSS Carrier Dial Tone
NSSD Network Support Systems Division
NSSN National Standards System Network
NSSOG Network Security Standards Oversight Group
NSSR Non-Specific Subordinate Reference
NSTAC National Security Telecommunications Advisory Committee
NSTL National Software Testing Laboratory (USA)
NSTN Non-Standard Telephone Number
NSTS Network Services Test System
NT ISO country code for Neutral Zone (obsolete)
NT Nested Task
NT Network Tailoring
NT Network Termination
NT Network Testing
NT Network-Terminating Equipment
NT New Technology (Windows)
NT Non Transparent
NT Nortel Networks
NT Northern Telecom
NT Postal code for Northwest Territories
NT OA Network Testing Operations Application
NT1 Network Termination- Type 1
NT1 Network Termination 1
NT-1 Network Termination- Type 1
NT12 Network Termination- Type 1 and 2
NT1B Network Termination 1 Broadband
NT1PS NT1 Power Status Change
NT1TM NT1 Test Mode Change
NT2 Network Termination- Type 2
NT-2 Network Termination- Type 2
NTA National Telecommunications Alliance
NTA Network Terminal Adapter
NTA Network Termination Analog
NTA Network Transport Address
NTAAB New Type Approval Advisory Board
NTACS Narrowband TACS
N-TACS Narrowband TACS
NTAS Windows NT Advanced Server
NTB New Technology Building
NTBA Network Termination Basic Access
NTBS Null-Terminated Byte String
NTC National Telecommunications Conference
NTC National Telesystems Conference
NTC National Television Center
NTC NEAT Test Centre
NTC Negative Temperature Coefficient
NTC Negative Temperature Coefficient (Resistor)
NTC Network Terminating Circuit
NTC New Table Control
NTCA National Telephone Cooperative Association
NTD Network Technology Development
NTD Network Toll Denied
NTD Network Tone Detector
NTD Network Topological Design
NTE Network Terminal Emulator
NTE Network Terminal Equipment
NTE Network Terminating Equipment
NTE Network Test Environment
NTE Network Transport Element
NTE Windows NT-Embedded
NTF No Trouble Found
NTFMT Northern Telecom AMA Format
NTFS New Technology File System (Windows NT)
NTFS Northern Telecom Federal Systems
NTG Integrity Value
NTG Network Transformation Group
NTI Network Time Synchronization Agent
NTI Noise Transmission Impairment
NTIA National Telecommunications and Information Administration
NTIS National Technical Information Service
NTLM NT LAN Manager
NTM Network Termination Maintenance
NTM Network Tone Module
NTM Network Traffic Management
NTM NT Test Mode Indicator
ntm NT Test Mode Indicator
NTM NT1 Test Mode
NTMBS Null-Terminated Multibyte String
NTMF Network Traffic Management Forum
NTMFT NT Meridian Feature Transparency
NTMOS Network Traffic Management Operations System
NTMSS Network Tone Module Service Supervisor
NTM-U Universal Network Tone Module
NTN National Telecommunications Network
NTN National Terminal Number
NTN Network Terminal Number
NTN Network Terminating Number
NTNAPRI Northern Telecom North American Primary Rate Interface
NTOA Nortel Operator Assistance
NTOC Northern Telecom Object Center
NTON National Transparent Optical Network
NTONC National Transparent Optical Network Consortium
NTP Network Termination Point (User Interface)
NTP Network Time Protocol
NTP Network Trouble Patterning
NTP Normal Transmitted Power
NTP Northern Telecom Practice
NTPF Number of Terminals Per Failure
NTPFC Northern Telecom Pacific
NTRA Norwegian Telecommunications Regulatory Authority
NTRAC New Technical Regulations Approval Committee (former TRAC)
NTRAS New Technology Remote Access Services
NTRS No Terminal Responding
NTS NetWare Telephony Services
NTS Network Test System
NTS Network Time Synchronization
NTS Network Tracking System (SNA)/Network Troubleshooting Consultant (DEC)
NTS Nodal Timing Supply
NTS Non-Traffic Sensitive
NTS Novell Telephony Services
NTSA NetWare Telephony Services Architecture
NTSC National Technical Supply Center
NTSC National Television Standards Committee
NTSC National Television System Committee (USA)
NTSC National Television Systems Committee
NTSC Network Test System Controller
NTSC North American Television Standards Committee
NTSC Notification Signaling Channel
NTSIG Northern Telecom Signature
NTT Nippon Telegraph and Telephone
NTT No Test Trunk
NTTA Network Terminating and Testing Apparatus
NTTC National Technology Transfer Center
NTTMP Network Trunk Transmission Measurement Plan
NTTP Network Test and Termination Point
NTTPC Nippon Telegraph and Telephone Public Corporation
NTTRF NT Bellcore TR-Compliant Functional
NTU National Technological University
NTU NEAT Test Unit
NTU Network Terminating Unit
NTV Network Test Vehicle
NTWCS Null-Terminated Wide-Character String
NTWK Network
NU ISO country code for Niue
NU Nailed Up
NU NUll
NU Number Unavailable
NU Number Unobtainable
NU/NP Number Unavailable/Number Private
NUA Network User Access
NUB National Unsuccessful Backward Setup Information Message
NUB Network Utility Box
NUC Nailed Up Connection
NUC Non-Upward Compatible
NUC Nucleus
NUD Neighbor Unreachability Detection
NUG Network User Group
NUI NetWare Users International
NUI Network User Identification
NUI Network User Identity
NUI Network User Interface
NUI Nodal User Interface
NUI Notebook User Interface
NUI NTELPAC User Identification
NUIAPA NUI AP Address
NUIAPAL List of NUI AP Addresses
NUIAPCUG CUG Interlock Code for the AP
NUIBPQHA NUI Backup PQH Address
NUIDTEVP DTE NUI Validation Possible
NUIN0 Threshold for NUI Fraud Control Alerting
NUIN1 Threshold for NUI Deactivation
NUIO Network User Identification Override Capability
NUIOP Network User Identification Override Permission
NUIPPQHA NUI Primary PQH Address
NUIPQHCUG CUG Interlock Code for the PQH
NUISCA NUI Selection on Call Acceptance
NUISUI NUI Supplemental User Identification Acceptance
NUIT0 NUI TO Time Interval
NUIT1 NUI T1 Interval Timer
NUITA1 NUI TA Time Interval
NUIUVA User Validation of NUI Allowed
NUIVCIC NUI Valid Card Issuer Codes
NUIVH User Access Inconclusive NUI Validation Handling
NUIVHIX75 Incoming X.75 Inconclusive NUI Validation Handling
NUL Null
NUM Numeric
NUMA Non-Uniform Memory Access
NUMC Number of Calls Allowed
NUP Nailed Up
NUP National User Part (of signalling system No7)
NUPB Nailed Up B Channels
NUPB Nailed-Up B-Channels for PMD
NUR Not-Used-Recently
NURBS Non-Uniform Rational B-Spline (CAD/CAE)
NUS Number Search
NUT Number Unobtainable Tone
NUTS Non-Usage Trunk Scan
NV Nonvolatile
NV U.S. postal code for Nevada
NVAS Network Voice Activated Services
NVFS Network Virtual File System
NVL Nashville
NVLAP National Voluntary Laboratory Accreditation Program (USA)
NVM Non-Volatile Memory
NVOD Near Real-Time Video On Demand
NVP Name-Value Pair
NVP Network Voice Protocol
NVP Nominal Velocity of Propagation
NVRAM Non-Volatile Random-Access Memory
NVS Non Volatile Storage
NVT Network Virtual Terminal
NVT Novell Virtual Terminal
NW NetWare
NW Network
NW Northwest
NW Not Write-Through
NWC Native Window Control
NWC Network Management Control
NWCTP Network Connection Termination Point
NWG Network Working Group
NWI New Work Item (initial proposal of activity within ISO)
NWK Network
NWK Network Layer
NWM Network Management
NWML National Weights and Measurements Laboratory
NWN Nationwide Wireless Network
NWOF Network of the Future
NWS Novell Web Server
NWSAA NetWare for SAA
NWT Network Technologies
NWT Network Technology
NWT Norstar, Wireless, and Terminals
NWT Nortel World Trade
NWTP Network Termination Point
NWTTP Network Trail Termination Point
NX64 Channelized N x 64 kbps
NXCP Non-Crossthreaded Call Processing
NXID Number Exchange Identification
NXS MDII: No Expected Stop
NXSP Network Transcoder Service Pack
NXT Next
NXTGRP Next Group
NY U.S.postal code for New York
NYBC May Not Yet Be Connected
NYIT New York Institute of Technology
NYNEX New York New England Exchange
NYPS National Yellow Pages Service
NYSE New York Stock Exchange
NYSTA New York State Telephone Association
NYT New York Telephone
nz Internet country code for New Zealand
NZ ISO country code for New Zealand
o Object Code
O Objective
o Oblique
O Octal
O Open
O Optical
O Optional
O Order of
O Other
O Overflow
O&M Operation(s) and Maintenance
O/A Originate/Answer
O/E Odd/Even
O/E Optical-to-Electrical
O/E Opto-Electronics
O/G Outgoing
O/P Outpulsing Utility
O/P OutPut
O/R Originator/Recipient
O/S Operating System
O/S Out-of-Service
O+I Originating-plus-Incoming
O+T Originating-plus-Terminating
OA Object Adapter
OA Office Automation
OA Operand Address
OA Operation Agent
OA Operational Amplifier
OA Operations Application
OA Operator Assistance
OA Operator Assisted
OA Operator Attached
OA Optical Amplifier
OA Order Administration
OA Outgoing Access
OA Overflow Accept
OA&M Operation, Administration and Maintenance
OA&M Operation(s), Administration and Management
OABU Operation Agent Back-Up
OAC Operator Assisted Call
OAC Opto Active Connector
OACSU Off-Air Call Set-Up
OAD Origination-Address Display
OADM Optical Add/Drop Multiplexer
OAF Origin Address Field
OAG Official Airlines Guide
OAM Object Access Model
OAM Once-a-Month
OAM Operation(s) and Maintenance
OAM Operations and Management
OAM Operations, Administration, and Maintenance
OAM Oscillator Activity Monitor
OAM&P Operations, Administration, Maintenance and Provisioning
OAMC Operation, Administration, and Maintenance Centre
OAMDB OA&M Database
OAMP Operations, Administration and Maintenance Processor
OAMP Operations, Administration, Maintenance and Provisioning
OAMTD OAM Traffic Descriptor
OAN Optical Access Network
OAN Optical Access Node
OAO Orbiting Astronomical Observatory
OAP Open Automated Protocol
OAR Operand Address Register
OAR Outgoing Access Restrictions
OARAC On Air (de-) Registration ACknowledge information element
OAS Office Alarm System
OAS Office Automation Systems
OAS On-line Automated Support
OAS Organization of American States
OASE Object Aided Software Engineering
OATS Open Air Test Site
OATS Orthogonal Array Testing
OAU Office Alarm Unit
OAW Optically Assisted Winchester
OB Object-Based
OB Obligatory Joke
OB Offboard
OB Out-Band
OB Outgoing Busy
OB Output Buffer
OB Outside Broadcast(ing)
OBA Object Behavior Analysis
OBA Out-of-Band Announcement
OBA/D Object Behavior Analysis and Design
OBAF Originating BAF
OBAM Object-Action Manager
OBC On-Board Controller
OBC Originating Basic Call
OBC Other side Bearer Channel
OBCA Originating Bearer Control Agent
OBCI On-Board Controller Interface
OBCi Optional Backward Call Indicator
OBCI Optional Backward Call Indicators
OBCM Originating Basic Call Model
O-BCM Originating Basic Call Model
OBCS Originating Basic Call Service
OBD Object Behavior Design
OBEX Object Exchange
obex Object Exchange
OBF Offboard Framework
OBF Ordering and Billing Forum
OBH Office Busy Hour
OBH Originating Busy Hour
OBHC Originating Basic Half Call
OBI Object Binary Interface
OBI Odd Bit Inversion
OBJ Object Code
OBJ Object Code File
OBJ Object Module
OBJ Obligatory Joke
OBN Office Balancing Network
OBN Out-of-Band Noise
OBO Or best offer
OBP On-Board Processing
OBS ACD Observe Agent
OBS Call Observing
OBS Observe
OBS Outdoor Base Station
OBTS Optical Bandwidth Test Set
OBTW Oh, by the way
O-BWO O-type Backward-Wave Oscillator
OC Object Centre
OC ObjectCenter
OC Octet Counter
OC Open Circuit
OC Open-Captioned
OC Operand Fetch Cycle
OC Operations Channel
OC Operations Controller
OC Operator Centralization
OC Optical Carrier
OC Organization Code
OC Originating Call
OC Outgoing CAMA
OC Output Compare
OC Output Controller
O-C Object Centre
OC1 Optical Carrier-Level 1
OC-1 Optical Carrier-Level 1
OC12 Optical Carrier-Level 12
OC-12 Optical Carrier-Level 12
OC18 Optical Carrier-Level 18
OC-18 Optical Carrier-Level 18
OC192 Optical Carrier-Level 192
OC-192 Optical Carrier-Level 192
OC24 Optical Carrier-Level 24
OC-24 Optical Carrier-Level 24
OC3 Optical Carrier-Level 3
OC-3 Optical Carrier-Level 3
OC36 Optical Carrier-Level 36
OC-36 Optical Carrier-Level 36
OC48 Optical Carrier-Level 48
OC-48 Optical Carrier-Level 48
OC9 Optical Carrier-Level 9
OC-9 Optical Carrier-Level 9
OC96 Optical Carrier-Level 96
OC-96 Optical Carrier-Level 96
OCA Open Communications Architecture (IBM)
OCA Optical Customer Access
OCA Origin Connection Agent
OCA Outgoing Call Allowance
OCAA Outside Calling Area Alerting
OCAD Optical Character and Detect
OCB Outgoing Call Barring
OCB Outgoing Calls Barred
OCB-F Fixed Outgoing Call Barring (supplementary service)
OCBT Office Compatible Basic Toolkit
OCB-UC User Controlled Outgoing Call Barring (supplementary service)
OCC Occupancy
OCC Operations Control Centre
OCC Optical Cross-Connect
OCC Other Common Carrier
OCC OUTWATS Carrier Code
OCC Overflow Call Condense Block
OCCA Originating Call Control Agent
OCCC One Connection Call Control
OCCF Operator Communication-Control Facility (SNA)
OCCP Occupancy Peak
OCD Out-of-Cell Delineation
OCDM Optical Code Division Multiplexing
OCdNo Original Called Number
OCEF Optical Cable Entrance Facility
OCF ObjectComponents Framework
OCF Open Communication(s) Facility
OCF Open Computing Facility
OCG Operational Co-ordination Group
OCH Optical Channel
OCHC Operator Call Handling Center
OCI Object Code Insertion
OCI Optical Carrier Interface
OCI Oracle Call Interface
OCI Orient Communications Industry Inc.
OCI Originating Carrier Identification
OCL Overall Connection Loss
OCLC Online Computer Library Center
OCM Object Communication Model
OCM Originating Call Model
OCM Outgoing Call Memory
OCMS Optional Calling Measured Service
OCN Operating Company Number
OCn Optical Carrier-Level n
OCN Original Called Number
OC-N Optical Carrier-Level N
OCNC Operator Centralization Night Closedown
OCOC Object Centre Operations Committee
OCP Optional Calling Plan
OCP Original Called Party
OCP-L Optional Calling Plan-Local
OCP-T Optional Calling Plan-Toll
OCR Optical Character Reader
OCR Optical Character Recognition
OCR Outgoing Call Restriction
OCRIT Optical Character Reader Intelligent Terminal
OCS Operations Communications System
OCS Optical Cross-Connect System
OCS Originating Call Screening
OCS Outgoing Call Screening
OCS Overlap Carrier Selection
OCS Overload Control System
OCT Octal
OCT OCTAVE
OCT Office Code Trigger
OCT Overload Condition Treatment
OCTAVE Object-Centered Test Automation and Verification Environment
OCTPET OCTAVE Package Execution Tool
OCTUTIL OCTAVE General Utilities
OCU Office Channel Unit
OCUDP Office Channel Unit Dataport
OCU-DP Office Channel Unit-Dataport
OCV Open-Circuit Voltage
OCV Oscillator Control Voltage
OCW Odd Control Word
OCWR Optical Continuous Wave Reflectometer
OCX OLE Custom Control
OCX OLE Custom Extension
OD Optical Disc
OD Optional for operators to implement for their aim
OD Origination Dialog
OD Out-Band
OD Output Distributor
OD Outside Diameter
O-D Origination-Destination
ODA Object Database Adapter
ODA Office Data Assembler
ODA Office Document Architecture
ODA On-Line Delivery Acknowledgement
ODA Open Document Architecture
ODB On-Demand B-Channels
ODBC Open Database Connectivity
ODBE Office Database Editor
ODBMS Object Database Management System
ODBMS Object-Oriented Database Management System
ODC Office Default Carrier
ODC On-Duty Coordinator
ODC Optical Directional Coupler
ODC Orthogonal Defect Classification
ODCA Ordered Channel Assignment Scheme with Rearrangement
ODCL Optical Data Communication Link
ODCP One-Digit Code Point
ODD Office-Dependent Data
ODD Office-Dependent Database
ODD Operator Distance Dialing
ODE Object Database & Environment
ODE Office 97 Developer Edition
ODETTE Organization for Data Exchange via TeleTransmission in Europe
ODF Network Management Forum
ODF Object Distribution Facility (NetView)
ODF OpenDoc Development Framework
ODgVSt Ortsdurchgangsvermittlungsstelle (local tandem exchange)
ODI Open Datalink Interface
ODI Open Data-Link Interface
ODI Open Device Interface
ODIF Office Document Interchange Format
ODIF Open Document Interchange Format
ODK OEM Developer Kit
ODL Object Definition Language
ODL Object Description Language
ODL Office Document Language
ODL Optical Data Link
ODLI Open Data Link Interface
ODLS Optical Disk Library System
ODM Object Data Manager
ODM Object Data Model
ODM Object Display Map
ODM OCTAVE Data Manager
ODM Office Data Modification
ODM Optimized Distribution Model
ODM Organization Domain Modeling
ODMA Open Distributed Management Architecture
ODMA Opportunity-Driven Multiple Access
ODMG Object Database Management Group
ODMG-93 Object Database Management Group-93
ODMI OCTAVE Data Manager Interface
ODN Open Data Network
ODN Optical Distribution Network
ODNA Originating DNA
ODP Object Delivery Program
ODP Office Dialing Plan
ODP Open Distributed Processing
ODP Optical Distribution Point
ODP Optical Diverse Protection
ODPE ODP Environment
ODP-RM Open Distributed Processing Reference Model
ODR Optimized Dynamic Routing
ODR Origin-Dependent Routing
ODS Open Data Services
ODS Open Distributed Systems
ODS Optical Data Storage
ODS Ozone Depleting Substances
ODSA Open Distributed Systems Architecture
ODSI Open Directory Services Interface
ODT Operator Display Terminal
ODT Optical Distribution Terminal
ODT Outage Down Time
ODU Optical Demultiplexer Unit
OE ISDN Access Line View
OE Object Engine
OE Office Equipment
OE Office Equipment Identification
OE Office Equipment Number
OE Operating Equipment
OE Operations Event
OE Originating Equipment
OE Originating Exchange
OE Output Enable
OE Overrun Error
OEA Operating Environment Architecture
OEA Optimized Effective-Address
OECD Organisation for Economic Cooperation and Development
OED Oxford English Dictionary
OED2 Oxford English Dictionary, Second Edition
OEDN Office Equipment/Directory Number
OEF Origin Element Field
OEIC Optoelectronic Integrated Circuit
OEIC Opto-Electronic Integrated Circuit
OEM Operating Efficiency Measurement
OEM Operations Event Monitoring
OEM Original Equipment Manufacturer
OEM Other Equipment Manufacturers
OEM Outside Equipment Manufacturer
OEMF HP OpenView Element Management Framework
OEP Operand Execution Pipeline
OERC Optimum Earth Re-entry Corridor
OES Österreichisches EinheitswählSystem
OES Outgoing Echo Suppressor
OES-D (Austrian variant of DMS-100)
OET Office of Engineering and Technology
OEW Object Engineering Workbench
OF Object Framework
OF Optional Fixed Length
OF Overflow
OF Overflow Flag
OFA Off-Net Access
OFA Optical Fiber Amplifier
OFA Output Function Array
OFB Output Feedback
OFC Office
OFC Official
OFC Open Financial Connectivity
OFC Optical Fiber Conference
OFCi Optional Forward Call Indicator
OFDM Optical Frequency Division Multiplexing
OFDM Orthogonal Frequency Division Multiplexing
OFDM Orthogonal Frequency Domain Multiplexing
O-FDM Optical Frequency Division Multiplexing
OFDMA Orthogonal Frequency-Division Multiple Access
OFE Old Front End
OFF Object File Format
OFFL Offline
OffL Offline
OFFLN Offline
OFGQ Outgoing Facility Group Queuing
OFHC Oxygen-Free, High-conductivity Copper (Cables)
OFHK Off-Hook
OFL Overflow
OFM Operations Feature Matrix
OFM Outage Frequency Measurement
OFM Outgoing Formatter
OFMC Optical Fibre Measurement Conference
OFR Off Frequency Rejection
OFR Overflow Register, Signal Distribution Point
OFS Object File System
OFS Office-side Frame Synchronization
OFS Open File Server
OFS Operational Fixed Service
OFS Optical Fiber System
OFS Out-of-Frame Second
OFS Output Field Separator
OFS Overflow Register, Software
OFTEL Office for Telecommunications (UK)
OG Outgoing
OG Outside BBG
OGC Outgoing Trunk Circuit
OGDD Outgoing/Delay Dial
OGID Outgoing/Immediate Dial
OGR Outgoing Repeater
OGT Outgoing Toll
OGT Outgoing Trunk
OGW Operations Gateway
OGWS Outgoing/Wink Start
OGXPT Outgoing Crosspoint
OH Off Hook
OH Operator Handled
OH Overhead
OH U.S. postal code for Ohio
OHBT Off Hook Balance Test
OHC Originating Half-Call
OHD Offhook Delay
OHD Off-Hook Delay Trigger
OHD Optical Heterodyne Detection
OHD Over-Heat Detector
OHDACC Operator Handled Directory Assistance Call Completion
OHECD Outgoing Half Echo Control Device
OHI Off-Hook Immediate Trigger
OHI Off-Hook Subscriber Service Indicator
OHIP Office Hardware Inventory Package
OHP Over-Head Projector
OHQ Off-Hook Queuing
OHQT Off Hook Queue Tone
OHS Off-Hook Service
OHSP Operator-Handled Split-Referral
OHT On Hook Transmission
OI Number of Outstanding I Frames
OI Object Identifier
OI Object Interface
OI Open Interface
OI Operator Identification
OIA Office Information Architecture
OIA Open Information Access
OIA Open Interface Access
OIC Oh, I see
OIC Originating InterLATA Carrier
OICS Object Implementation Conformance Statement
OID Object Identifier
OID Object Interaction Diagram
OID Object-ID
OIDL Object Interface Definition Language
OIFDC Outstanding Information Frames for LAPD, Parameter K for Call Control
OIFDP Outstanding Information Frames for LAPD, Parameter K for X.25 Packet
OIGP Open Interior Gateway Protocol
OII Office Information Interchange (SNA)
OIL Optimizable Intermediate Language
OIL Optimizing Intermediate Language
OIL Orange Indicating Lamp
OIM Open Information Management
OIM Operations Interface Module
OIM Operator Interface Message
OIM Oracle In Motion
OIM OSI Internet Management
OINC Originating International Carrier
OINF Originating Rate Center Information
OIRT Organisation internationale de radiodiffusion et de télévision
(International Radio and Television Organisation)
OIS Office Information System
OIS Optical Interface System
OIS Originating International Switch
OIU Office Interface Unit
OIU Operator Interface Unit
OIW Open Systems Environment Implementors Workshop
OIW OSI Implementers Workshop
OIW OSI Implementor's Workshop
OJ Ordinary Joint meeting (ETSI)
OJ Originating Junctor
OJT On-the-Job Training
OJUG Ottawa Java Users Group
OK U.S. postal code for Oklahoma
OKITAI Okinawa-Taiwan submarine cable
OKQPSK Offset Keyed Quadrature Phase Shift Keying
OKTR Operator Keyed Trouble Report
OL Open License
OL Ordered List (HTML tag)
OL Other Line
OL Overhead Line
OLA Operational Level Agreement
OLAP On-Line Analytical Processing
OLB Object Library file
OLB OCU Loop Back
OLB One Line Business
OLB On-Line Bibliography
OLC Optical Loop Carrier
OLCP On-Line Complex Processing
OLCR On-Line Character Recognition
OldRT Old Remembered Table
OLE Object Linking and Embedding
OLE Originated Local Exchange
OLE2 Object Linking and Embedding 2
OLEC Other Local Exchange Carrier
OLFR On-Line Facility Registration
OLHB Outgoing Line History Block
OLI Originating Line Information
OLIP Originating Line Information Parameter
OLIT OPEN LOOK Intrinsics Toolkit
OLIU Optical Line Interface Unit
OLL Open-Loop Loss
OLM Overload Message
OLNS Originating Line Number Screening
OLO Other Licensed Operator
OLP On Line Processor
OLP Originating Line Privileges
OLR Off-Line Recovery
OLR Overall Loudness Rating
OLRT On-Line Real-Time
OLS On-Line Service
OLS Operator Load Simulator
OLS Optical Line System
OLS Originating Line Select
OLS Originating Line Selection
OLSOA Over-Load Safe Operating Area (Power Semiconductors)
OLT Optical Line Terminal
OLT Optical Line Termination
OLT Optical Line Terminator
OLTE Optical Line Terminating Equipment
OLTM Optical Line Terminating Multiplexer
OLTM Optical Line Termination Module
OLTP On-Line Transaction Processing,
OLTS Optical Line Transmission System
olwm Open Look Window Manager
OM DDOC Section: Operational Measurements
OM ISO country code for Sultanate of Oman
OM Object Manager
OM Object Model
OM Old Man (radio amateur)
OM Operational Measurement
OM Operations Management
OM Originating Marker
OM Output Message
OM Output Message Manual
OM-1 Open MPEG-1
OM2 Operational Measurements Integrity Check
OMA Open Management Architecture (3Com)
OMA Organizational Mission Analysis
OMAP Operations, Maintenance and Administration Part
OMAP Operations, Maintenance, and Administration Protocol (SS7)
OMASE Operations and Maintenance Application Service Element
OMAT Operational Measurement Analysis Tool
OMB Outgoing Message Buffer
OMBE Outgoing Message Buffer Empty
OMC OM Collector
OMC Operating and Maintenance Centre
OMC Operations and Maintenance Center
OMD Object Model Development
OME Open Messaging Environment
OMF Object Management Framework
OMF Object Management Function
OMF Object Manager Framework
OMF Object Model Format file
OMF Object Module Format
OMF Open Message Format
OMFS Office Master Frequency Supply
OMG Object Management Group
OMI Open Microprocessor Initiative
OMI Optical Modulation Index
OMI Organisation Maritime Internationale
OMID Operational Measurement ID
OML Object Manipulation Language
OML Object Model Library
OML OPEN Modeling Language
OML Operations and Maintenance Link
OML Outgoing Matching Loss
OML Overload Messaging Limit
OMMO Object Manager Managed Object
OMNCS Office of the Manager, National Communications System
OMNI Open Management Network Interoperability
OMNIPoint Open Management Network Interoperability Point
OMO OEM Modules Operation
OMP Open Management Platform
OMP Operations and Management Platform
OMP Outbound Modem Pooling
OMPI Organisation Mondiale pour la Propriété Intellectuelle
OMPR Operational Measurements Print
OMQ Outgoing Message Queue
OMR Optical Mark and Read
OMR Optical Mark Reader
OMRS Operational Measurement Reporting System
OMS Object Management System
OMS Open Management System
OMS Optical Multiplex Section
OMS Outgoing Memory Slot
OMSP Optical Multiplex Section Protection
OMS-V Open Management System-Vector
OMT Object Modeling Technique
OMT Operation and Maintenance Terminal
OMT Original Message Type
OMT OrthoMode Transducer
OMT Overhead Message Train
OMTool Object Modeling Tool
OMU Operand Modifier Unit
OMU Operation and Maintenance Unit (Nokia)
OMU Optical Multiplexer Unit
OMUP Operation and Maintenance User Part
ON Order Number
ON Originating Number
ON Ortsnetz (Local Network)
ON Österreichisches Normungsinstitut (A)
ON Postal code for Ontario
ONA Open Network Architecture (ISO)
ONA Open NM Arch (IBM, FCC, BOC, BT)
ONAC Operations Network Administration Center
ONAL Off-Network Access Line
ONAT Originating No Answer Timer
ONC Off-Net Calling
ONC ONMS Node Commander
ONC Open Network Computing
ONC Operator Network Center
ONC Operator Network Console
ONC Ordinary National Certificate
ONC+ Open Network Computing Plus
ONC-A Operator Network Center-A
OnCE On-Chip Emulation
ONE One Number
ONE Open Network Environment
ONE Open Networks Engineering
ONE Optical Network
ONE Optimized Network Evolution
ONE Other Network Entity
ONI ODS Nucleus Interface
ONI Open Network Interconnect
ONI Operator Number Identification
ONI Optical Network Interface
ONID Operator Number Identification
ONKZ National Destination Code
ONKz Ortsnetzkennzahl (Local Exchange/Area Dialing code)
ONLN Online
ONMA Open Network Management Architecture
ONMS Optimized Network Management System
ONP Address complete, subscriber Free, Charge
ONP One Night Process
ONP On-Premise Extension
ONP Open Network Provision(ing)
ONP Open Numbering Plan
ONPS Origin of Number and Presentation Status
ONS Open Network Service
ONSD Optional Network Specific Digit
ONT Optical Network Termination
ONTC Optical Networks Technology Consortium
ONU Optical Network(ing) Unit
ONU Organisation des Nations Unies
OO Object-Oriented
OO Operator Office
O-O Object-Oriented
OOA Object-Oriented Analysis
OOAD Object-Oriented Analysis and Design
OOB Out-of-Band
OOBE Out-of-Box Experience
OOBF Out-of-Box Failure
OOC Optical Orthogonal Codes
OOC Overseas Operator Center
OOD Object-Oriented Design
OODB Object-Oriented Database
OODBMS Object-Oriented Database Management System
OODLE Object-Oriented Design Language
OOE Organizations Outside ETSI
OOF Object-Oriented Framework
OOF Out of Frame
OOK On Off Keying (ASK)
OOK On/Off Keying
OOK On-Off Keyed
OOL Object-Oriented Language
OOLR Overall Objective Loudness Rating
OOO Out Of Order
OOP Object-Oriented Programming
OOPL Object-Oriented Programming Language
OOPM Object Oriented Process Metric(s)
OOPS Object-Oriented Programming System
OOPSLA Object-Oriented Programming Systems, Languages, and Applications
OOR Object-Oriented Representation
OOR Object-Oriented Requirements
OOR Operator Override
OOR Operator Override message
OORP Object-Oriented Rapid Prototyping
OORTL Object-Oriented Run-Time Library
OOS Object-Oriented Systems
OOS Out Of Service
OOS Out of Synch
OOSA Object-Oriented Systems Analysis
OOSD Object-Oriented Software Development
OOSE Object-Oriented Software Engineering
OOSP Out-of-Service Permanent
OOST Out-of-Service Temporary
OOST Out-of-Service Time
OOT Object-Oriented Technique
OOT Object-Oriented Technology
OOTC O-O Technology Center (IBM)
OOUI Object-Oriented User Interface
OOZ Out Of Zone
OP Off-Premises
OP Operate
OP Operator
OP Originating Party
OP Originating Protocol
OP Outside Plant
OPA Operator System Access
OPA Origin Protocol Agent
OPAC Online Public Access Catalog
OPAC Outside Plant Access Cabinet
OPAL Optical Access Line
OPAL Optische Anschlussleitungen (DBPT-defined FITL system)
OPC Operations Controller
OPC Operations Position Controller
OPC Organic Photoconductor
OPC Originating Point Code
OPC Origination Point Code
OPC Outgoing Peg Count
OPC Output Port Controller
OPCN Operation Condition message
OPD Oberpostdirektion (DBPT regional operations area)
OPDU Operation Protocol Data Unit
OPE Outside Plant Module Equipment
OPEN Object-oriented Process, Environment and Notation
OpEN Open Protocol Embedded Networking
OPEN Open Protocol Enhanced Networks
OPI Open Prepress Interface
OPID OPerator Identity
OPL DTMF Outpulsing to a Line
OPL Originating Packet Limit
OPLL Optical Phase-Locked Loop
OPM Operations Per Minute
OPM Optical Power Meter
OPM Optical Protection Module
OPM Outside Plant Module
OPN Open
OPND Outpulse Number Digits
OPOTS OCTAVE POTS
OPP Office of Plans and Policy
OPP Open Position Protocol
OPP Operator Position Protocol
OPR Office Performance Report
OPR Operate
OPR Operator(s)
OPR Optical Pattern Recognition
OPRF Override Presentation Restrictions on Forwarding DN
OPRN Originating Private Number
OPS Off-Premise Station
OPS Open Profiling Standard
OPS Operations Per Second
OPS Operations System
OPS Operator Services
OPS Operator System
OPS Outgoing Packet Size
OPS/INE Operations System for Intelligent Network Elements
OPS/INE Operations System/Intelligent Network Element
OPSC Optical Protection Switching Controller
OPSE Operation Protocol Service Element
OPSIC Operators Identification Code
OPSK Offset Phase Shift Keying
OPSM Outside Plant Subscriber Module
OPT Optional
OPTS OCTAVE PTS
OPUS Object-Oriented PROTEL-2 User System
OPX Off-Premises Extension
OQAM Offset Quadrature Amplitude Modulation
OQL Object Query Language
OQPSK Offset Quadrature Phase-Shift Keying
O-QPSK Offset Quadrature Phase Shift Keying
OQSM OCTAVE Query Set Manager
OR Office Regenerator
OR Office Repeater
OR Operator Released
OR Option Register
OR ORdinary Meeting (ETSI)
OR Originator/Recipient
OR U.S. postal code for Oregon
OR0 Option Register 0
OR1 Option Register 1
OR2 Option Register 2
OR3 Option Register 3
ORA Opportunities for Rural Areas (EC R&D programme)
ORA O'Reilly & Associates
ORA Override Restrictions Allowed
ORB Object Request Broker
ORB Office Repeater Bay
ORB Omnidirectional Radio Beacon
ORC Object Responsibility Collaboration
ORC Originating Rate Center
ORCC Originating Rate Center Code
ORD Override Restrictions Denied
ORDB Operator Reference Database
OREP Optical Repeater Equipment
org Miscellaneous organizations domain
ORG Origination Utility
ORI Operation or Result Identification
ORICO ORadio Interface CardO
ORIG Origination
ORIGDN Originating DN
ORJ Operator Requested Job
ORJGEN Operator Requested Job Generator
ORL Olivetti Research Laboratory
ORL Optical Return Loss
ORM Optical Remote Switching Module
ORM Optically Remoted Module
ORMA Optical Reservation Multiple Access
OROM Optical Read-Only Memory
ORPC Object RPC
ORR Office Release Record
ORR Original Redirection Reason
ORS Operations Readiness Solutions
ORS Output Record Separator
ORT Optical Receiver Transmitter
ORU Office Repeater Unit
OS Operating System
OS Operation(s) System
OS Operator Service(s)
OS Operator System
OS Optical Sender
OS Originating Service
OS Originating Subaddress
OS Origination Service
OS Out of Service
OS Output Signal
OS/2 Operating System/2
OS/NE Operations System to Network Element
OS/NMS Operation System/Network Management System
OSA Office System Architecture
OSA Open Scripting Architecture
OSA Open Systems Architecture (Olivetti)
OSA Operator System Access
OSA Optical Society of America
OSA Optical Spectrum Analyzer
OSA-A Operator System Access- Alternate Access
OSAC Operator Speed of Consistency
OSAC OSSAIN Centralization
OSAF Origin Subarea Field
OSAL OAM Services Access Layer
OSA-P Operator System Access- Principle Access
OSB Office Shortcut Bar
OSB Optical Switch Board
OSB Output Signal Balance
OSBCM Operator Services Basic Call Model
OSC Object Server Connectivity
OSC Ohio Supercomputer Center
OSC Operating System Command
OSC Operator Service Call
OSC Operator Service(s) Center
OSC Operator Services Client
OSC Operator Services Complex
OSC Oscillator
OSCA Open Systems Cabling Architecture
OSCA Operations System Computing Architecture
OSCAR Orbit Satellite Carrying Amateur Radio
OSCAR Orbiting Satellite Carrying Amateur Radio
OSCAS Operator Services/Separations Call Analysis System
OSCI Open Service Control Interface
OSD On-Screen Display
OSD Open Software Distribution
OSD Optical Scanning Device
OSD OSI Session Driver
OSDE On-Site Data Evolution
OSDL Object-Oriented SDL
OSDS Operating System for Distributed Switching
OSDT Operations Systems Demonstration Tools
OSF Offset Field
OSF Open Software Foundation (USA)
OSF Open Systems Foundation
OSF Operation System Functions
OSF Operations System Function
OSF Operations Systems Functions
OSF OS' Functional Block
OSFP Offset Field Parity
OSHA Occupational Safety and Health Act (USA)
OSHA Occupational Safety and Health Administration (USA)
OSI Open Switching Interval
OSI Open Systems Interconnection
OSI/NMF Open Systems Interconnection/Network Management Forum
OSIA Operation System Impact Analysis
OSIA OSI Architecture
OSI-ALS OSI Application Layer Structure
OSIE Open Systems Interconnection Environment
OSIMIS OSI Management Information Service
OSIMIS OSI Management Information System
OSINCP OSI Network Layer Control Protocol
OSINLCP OSI Network Layer Control Protocol
OSIRM Open Systems Interconnection Reference Model
OSI-RM Open Systems Interconnection Reference Model
OSITOP Open Systems Interconnection Technical and Office Protocol
OSITOP OSI Technology and Office Protocols
OSI-TP Open Systems Interconnection-Transaction Protocol
OSL ObjectSupport Library
OSL Operating System Independent Layer
OSLP Operations Service Logic Program
OSM Office of Spectrum Management
OSM Off-Screen Model
OSM On Screen Manager
OSM On Site Message
OSM Organization Structure Manager
OSM Originating State Machine
OSM OS-Specific Module
OSMINE Operations System Modifications for the Integration of Network Elements
OSN Observational Standard Number
OSN Office System Node (DIA/SNADS)
OSN Operating System Nucleus
OSN Operations System Network
OSN OSSAIN Node
OSNA Open Service Network Architecture
OSNL Operating System Nucleus Language
OSNM Operator Services Node-Maintenance
OSNR Optical Signal-to-Noise Ratio
OSNS Open Systems Network Support (SNA)
OSO Originating Screening Office
OS-OPAL Operations System for OPAL Fiber Optic Networks
OSP Online Service Provider
OSP Open Services Platform
OSP Open Signal Processor
OSP Operator Service Provider
OSP Optical Storage Processor
OSP Originating Service Provider
OSP Other Service Provider
OSP Outside Plant
OSPF Open Shortest Path First (IETF/TCP/IP)
OSPFv1 OSPF Version 1
OSPFv2 OSPF Version 2
OSPS Operator Services Position System
OSQL Object-oriented Structured Query Language
OSR Operator Services Record
OSR1 OEM Service Release 1
OSR2 OEM Service Release 2
OSS Operation Subsystem
OSS Operational Support System
OSS Operations Support System
OSS Operator Service(s) Signaling
OSS Operator Services Switch
OSS Operator Services System
OSS7 Operator Services Signaling Using Signaling System No. 7
OSSAIN Operator Services System Advanced Intelligent Network
OSS-C Operator Services Steering Committee
OSSDI OSS Data Interface
OSSGR Operator Services Systems Generic Requirements
OSSI Operations Support Systems Interface
OSS-IA Operational Support System Integration Architecture
OSSU Operator Services Switching Unit
OST Office of Science and Technology
OST Operating System Trap
OST Originating Station
OST Originating Station Treatment
OSTC Open Systems Testing Consortium
OSTR Operator Services Trouble Report
OSTT Open Systems Technology Transfer
OSTTP OS Technology Transfer Program (UK)
OSU The Ohio State University
OSVR Operator Service Voice Response
OSWS Operating System Workstation
OT Object Table
OT Object Technology
OT ObjecTime
OT Operation Type
OT Operator Terminal
OT Optical Translator(s)
OT Originating Time
OT Overtime
OTA Office of Technology Assessment
OTA Operational Transconductance Amplifier
OTA Operation-Triggered Architecture
OTA Over-the-Air Activation
OTAR Over the Air Registration
OTAU Optical Test Access Unit
OTC Old Table Control
OTC One Time Charge
OTC Operating Telephone Company
OTC Originating Toll Center
OTC Outgoing Throughput Class
OTC Overseas Telecommunication Commission
OTC Terminating Carrier Identification
OTD Observations of Time Differences
OTD Observed Time Differences
OTDM Optical Time Division Multiplexing
OTDR Optical Time-Domain Reflectometer
OTE Hellenic Telecommunication Organization
OTER Operator Team Efficiency Ratio
OTF Object Testing Framework
OTF On-The-Fly
OTF Open Token Foundation
OTF Optical Transfer Function
OTG Originating Trunk Group
OTGR Operations Technology Generic Requirements
OTH Other Trunk
OTH Over The Horizon
OTH-B Over-The-Horizon Backscatter (Military Radar)
OTI Object Technology International Inc.
OTI Outgoing Trunk Identifier
OTL OSI Testing Liaison group
OTM Object Transaction Manager
OTM Optical Terminal Multiplexer
OTOH On the other hand
OTOR Omni Transmit, Omni Receive
OTP Office of Telecommunications Policy
OTP One Time Pad
OTP One Time Password
OTP One-Time-Programmable (IC-Device, Memories)
OTP Open Telecom Platform
OTP Open Trading Protocol
OTQ Outgoing Trunk Queuing
OTR Operational Trouble Report
OTR Operator Trouble Report
OTR Optical Transmitter and Receiver
OTS Object Transaction Service
OTS Office Traffic Summary
OTS Operator Telephone System
OTS Optical Transmission Section
OTS Orbital Test Satellite
OTSR Omni Transmit, Sectored Receive
OTSS Off-The-Shelf System
OTSS OS Transport and Session Support (SNA)
OTTO On-line Transmission Time Optimizer (SNA)
OTUG Object Technology Users Group
OTW Occasional Trainer Workshop
OU Organization Unit
OUB Occasionally Used Bands
OUI Organizationally Unique Identifier
OUP Originating User Prompter
OUPI Originating User Participant Information
OURS Open User Recommended Solutions
OUSP Originating User Service Participant
OUT Object Under Test
OUT Remove service
OUTDN Delete block of DNs, RCF
OUTIN OUTput and INput workstation
OUTPUT OUTPUT only workstation
OUTS Originating Utility Telemetry Service
OUTWATS Outward Wide Area Telecommunications Service
OUTWATS Outward Wide Area Telephone Service
OV Optional Variable Length
OV Overvoltage
OVCC Open Via Chip Carrier (VLSI Package)
ÖVE Österreichischer Verband für Elektrotechnik (A)
OVEC Originating Vector Coordinates
OVED COSOVE Code Digits
OVF Overflow
OVFL Overflow
OVFLINQ Incoming Overflow Queue
OVFPT Overflow Point
OVFREG Overflow Register
OVFTRT Overflow Treatment
OVFTRTPM Overflow Treatment, Packet-Mode
OVID Object View Interaction Design
OVIDE Organization of Videotex for Information of Deputies in Europe
OVL Overlay Files
OVLD Overload
OVLD Overload message
OVLP Overlap Outpulsing
OVLY Overlay
OVP Over Voltage Protection
OVS Open Video Systems
OVS Overseas
OVSt Ortsvermittlungsstelle (local exchange/local switch)
ÖVSV Österreichischer VersuchsSender Verband (A)
OW ObjectWorks
OW Open Wire
OW Order Wire
OWATSBLN OUTWATS Billing Number
OWATSCB OUTWATS Call-by-Calling Billing Records
OWATSSCR OUTWATS Screening Sets
OWC One-Way Communication
OWF Optimum Working Frequency
OWFBD OUTWATS Full Business Day
OWG Optical Wave Guide
OWL ObjectWindows Library
OWMT OUTWATS Measured Time
OWS Operator Work Station
OWS Outgoing Window Size
OWST ObjectWorks/Smalltalk
OWT Operator Work Time
OWT OUTWATS
OX Originating Switch Complex
OXC Optical Crossconnect
OXCN Optical Cross-Connect
OXCO Oven-Controlled Crystal Oscillator
oz ounce(s) weight, approx. 28.3 g
P Paragraph (HTML tag)
P Parallel
P Parity
P Pending
P Peripheral side
p pico (10-12)
P Planning
P Point
P Poll
P Poll bit
P Positive
P Power (in dB)
p power (in watts)
P Predicted (frame)
P Predictive
P Preload Register
P Presentation
P Presentation Layer
P Presentation Layer Service
P Primitive
P Priority
P proberen (Dutch for "to test")
P Processor
P Profile in data syntax II
P Prohibited
p Proportional
P Protocol
P Puncher
P Wait
P&A Privacy and Authentication
P&E Planning and Engineering
P&L Peripheral and Loading
P&L Profit and Loss
P&S Publish and Subscribe
P(R) Packet Receive Sequence Number
P(R) Packet Receive sequence number
P(S) Packet Send Sequence Number
P(S) Packet Send sequence number
p.e.p. peak envelope power
P/A Programmer/Analyst
P/AR Peak-to-Average Ratio
P/C Primitive/Constructed
P/F Poll/Final
P/F Poll/Final bit (0 = Unacknowledged Operation; 1 = Acknowledged Operation)
P/PC Palm-Size PC
P/S Parallel-to-Serial
P1 Number of User-Assigned Packet Control TEI Values
P1 to P5 Compatible Photographic Profiles, numbered 1 to 5
P1FCC Phase 1 First Call Configuration
P2 Number of Switch-Assigned Packet Control TEI Values
P2 PROTEL-2
P2MET-D Protel-2 Metrics Generation Tool for Designers
P2P Point-to-Point
P2SC IBM Power 2 Super Chip
P3P Platform for Privacy Preferences Project
PA ISO country code for Republic of Panama
PA Paging Area
PA Paper
Pa Pascal(s)
PA Path Administrator
PA Peripheral Adapter
PA Peripheral Applications
PA Personal Agent
PA Physical Agreement
PA Portable Application
PA Power Amplifier
PA Preamble
PA Pre-Arbitrated
PA Precision Architecture
PA Primary Access
PA Process Alive
PA Program Address
PA Protocol Abnormality
PA Protocol Agent
PA Protocol Analyzer
PA Public Address
PA Public Address system
PA Pulse Amplifier
PA U.S. postal code for Pennsylvania
PAA Paging Area controller Address
PAA Policy Approving Authority
PAA Protocol Analysis Application
PAB Personal Address Book file
PAB Phase Aligned Passive Bus
PAB Protel Advisory Board
PABX Private Automatic Branch Exchange
PAC ETSI Programme Advisory Committee
PAC Paging Area Controller
PAC Parallel Access Circuit
PAC Perceptual Audio Coder
PAC Perceptual Audio Coding
PAC Personal Acoustic Control
PAC Platform Adaptor Component
PAC Point-and-Click
PAC Privilege Attribute Certificate
PAC Program Address Counter
PAC Programme Advisory Committee (ETSI)
PAC Prompted Automatic Callback
PAC Protection Against Collision
PACA Priority Access and Channel Assignment
PACCH Packet-Associated Control Channel
PACDAC Packet DAC
PACE Performance (Inc.) Advanced CMOS Engineering (High-Speed IC)
PACE Priority Access Control Enabled
PACE Product Assurance Component Engineering
PACES Product and Component Enterprise System
PACET Programmable Attendant/Agent Console and Electronic Telephone
PACK Package
PACK Positive Acknowledgement
PACKET Layer two entity comprising ACW and any following DCWs transmitted
as a single unit over which the s
PAC-OS Paging Area Controller- Operating System
PACS Patch Administration Control System
PACS Personal Access Communications Services
PACS Personal Access Communications System
PACS Picture Archiving and Communication System
PACS Picture Archiving and Communication System (Siemens)
PACS-L Public Access Computer Systems List
PACS-UA PACS-Unlicensed A
PACS-UB PACS-Unlicensed B
PAC-T the part of the Paging Area Controller dealing with the Traffic control process
PAD Packet Assembler/Disasssembler
PAD Packet Assembly/Disassembly
PAD Packet Assembly/Disassembly facility (CCITT Rec. X.3, X.28, X.29)
PAD Padding
PaDIUC ParcPlace and Digitalk International Users Conference
PADN Patch Administration and Downloading
PAE Parameter Arrival Element
PAF Problem Already Fixed
PAF Project Application Form
PAG Program Administration Group
PAG Project Advisory Group
PAGCH Packet Access Grant Channel
PAGCH Paging and Access Grant Channel
PAGE PABX Access for GSM Extensions
PAGE PM Automation Generic Environment
PAI Protocol Addressing Information
PAIH Public-Access Internet Host
PAIS Public-Access Internet Site
pal Packet Links
PAL Paradox Application Language
PAL Participant's ACT Lost
PAL Phase Alternate Line (analogue TV system)
PAL Phase Alternating Line
PAL Phase Alternation by Line
PAL Phase Alternation Line
PAL Phase-Alternation Line
PAL Product Application Letter
PAL Programmable Array Logic (Monolithic Memories Inc.)
PAL Public Access Line
PALA Precedence Access Limitation Announcement
PALC Plasma-Addressed Liquid Crystal
PALplus widescreen variant of PAL system
PAM Partition to Antenna Mapping
PAM Pass Along Message
PAM Personal Application Manager
PAM Pluggable Authentication Module
PAM Power and Alarm Module
PAM Pulse Amplitude Modulation
PAMA PreAssigned Multiple Access
PAMA Pulse Address Multiple Access
PAMR Public Access Mobile Radio
PAMS Preselected Alternate Master-Slave
PAN Personal Area Network
PAN Public Addressed Node
PANS Peculiar and Novel Services
PANS Potentially Attractive New Services
PANS Pretty Amazing New Services
PANS Pretty Amazing New Stuff
PANS Pretty Awesome New Services
PAP Password Authentication Protocol
PAQ Parameter Arrival Queue
PAQ Personal Agent Queue
PAQS Provisioning Automated Quotation System
PAR PARameter
PAR Parity
PAR Peak-to-Average Ratio
PAR Periodic And Random deviation
PAR PNNI Augmented Routing
PAR Positive Acknowledgement and Retransmission
PAR Precission Approach Radar
PAR Programme Aid Routine
PAR Programme d'Action de Recherche
PAR Project Authorization Request
PAR ProSTAR Analysis Report
PARADISE Piloting A ReseArchers DIrectory Service in Europe
PARB Process Architecture Review Board
PARC Palo Alto Research Center (Xerox)
PARC Paragraph Control Element
PARG Play, Acquire. Recognize, Get DTMF
PARI Primary Access Rights Identity
PARI Primary ARI
PA-RISC Precision Architecture-Reduced Instruction Set Computing
PARK Portable Access Rights Key
PARK{y} PARK with value y for it's park length indicator
PARM Parameter
PARM Parameter Downloading
PARMCAII Process Alive + Role Mapping + Content Alignment + Interactive Framework
PARS Personal Advanced Radio System
PARS Personal Audio Response System
PARS Personalized Audio Response System
PartMan Partition Manager
PARTS Parts Assembly and Reuse Tool Set
PAS Personal Access Service
PAS Personal Access Services
PAS Product Administration System
PAS Protected Application Segment
PAS Public Access Service
PAS Publicly Available Specification
PASC PCS Access Service for Radio Controllers
PASC PCS Access Services for Controllers
PASM Protocol Adaptable State Machine
PASP PCS Access Services for Ports
PASP PCS Access Services for Radio Ports
PAT Post Announcement Treatment
PAT Productization Architecture Team
PAT Program Association Table
PATC Page Address Translation Cache
PATED Prefix Analysis and Task Element Determination
PATH Program on Advanced Technology for the Highway
PATROL Program for Administrative Traffic Reports On-Line
PATS Parameterized Abstract Test Suite
PATU Pan African Telecommunications Union
PAU Pause message
PAWL Public Access Workstation Laboratory
PAWS Protection Against Wrapped Sequence Numbers
PAWS Provisioning Analyst Workstation System
PAX Private Automatic Exchange
PB Packet Bus
PB Paddle Board
PB Parameter Block
PB Parity Block check
PB Personal Base Station
PB Pipeline Burst
PB Play Back
PB Power Box
PB PowerBuilder
PB Proportional Bidding
PB Provisioned B-Channel
PB Public Number
PB Pushbutton
PBA Physical Block Address
PBA Printed Board Assembly
PBA Provider Based Address
PBAC Peripheral Bus Access Controller
PBC Peripheral Board Controller
PBC Peripheral Bus Computer
PBC Physical Bearer Channel
PBC Physical Bearer Connection
PBC Postal Business Center
PBC Program Booking Center
PBC Programming By Contract
PBCCH Packet Broadcast Control Channel
PBDK PowerBASIC Developer Kit
PBE P-Bus Extender
PBE Preferred Binary Encoding
PBF Proportionate Bidding Facility
PBGA Plastic Ball Grid Array
PBI Phone Based Interface
PBI Profiler Batch Input file
PBITS Pac Bell Integrated Test System
PBK Phone Book file
PBL Private Business Line
PBM PBX Message Rate
PBM PBX Message Register
PBM Physical Bus Maintenance
PBM Portable Bitmap
PBN Packet Based Network
PBO Profile-Based Optimisation
PBO Profiler Batch Output file
PBPVACC Public-to-Private Access Code
PBS Personizable Basic Service
PBS Portable Base Station
PBS Public Broadcasting System
PBsy P-Side Busy
P-BSY Peripheral Side Busy
PBT Pass-Band Tuning (Radio Communications)
Pbus Processor Bus
P-BUS Processor Bus
PBW Power Band-Width
PBX PBX Flat Rate
PBX Private Branch Exchange
PBX Private Business Exchange
PBX(PABX) Private Automatic Branch Exchange
PC Paddle Card
PC Paper Cassette
PC Parameter Combination
PC Path Control
PC Peg Count
PC Peripheral Control
PC Peripheral Controller
PC Personal Computer
PC Personality Card
PC Physical Connection
PC Point Code
PC Point Coordinator
PC Power Control
PC Power Converter
PC Precision Control
PC Preset Conference
PC Primary Center
PC Printed Circuit
PC Priority Call (TETRA)
PC Priority Control
PC Private Circuit
PC Process Control
PC Program Commit
PC Program Complete
PC Program Counter
PC Programming Committee
PC Protection Channel
PC Protocol Capabilities
PC Protocol Control
PC/AT Personal Computer/Advanced Technology
PC/S Personal Computer/Standard
PC/T Personal Computer/Tape
PC/XT Personal Computer/eXtended Technology
PCA Personal Communicating Assistant
PCA Policy Certification Authority
PCA Policy Creation Authority
PCA Port Channel Address
PCA Power Control and Alarm
PCA Printed Circuit Assembly
PCA Privacy Change Allowed
PCA Process Component Architect
PCA Product Content Administration
PCA Product Content Application
PCA Protective Connecting Arrangement
PCA Protocol Conformance Analyzer
PCA Protocol Conformance Application
PCAA Portable Computer and Communications Association
PCAC Point Code Allowed Control
PCAM Packaged Core Auxiliary Module
PCB Party Control Block
PCB Person Call Back
PCB Printed Circuit Board
PCB Process Control Block
PCB Protocol Control Block
PCB Public Coin Box
PCBA PCB Assembly
PCBC Plaintext Cipher Block Chaining
PCBM Packaged Core Basic Module
PCC Parallel Connection Control
PCC Permanent Consultative Committee
PCC Personal Companion Computer
PCC Philips Consumer Communications
PCC Plastic Chip Carrier
PCC Power Control Channel
PCC Primary Circuit Components (Power Line)
PCC Process Control Computer
PCC Pseudo Country Code
PCC Punctured Convolutional Code
PCCA Portable Computer Communications Association
PCCAB Prefetcher with Circular Content Addressable Buffer
PCCB Product Configuration Control Board
PCCH Physical Control Channel
PC-COE PC-Common Operating Environment
PCCU Personal Computer Communication Unit
PCD Page-Level Cache Disable
PCD Personal Communication Device
PCD PhotoCD
PCD PhotoCD File
PCD Picture Coding Delimiter
PCD Program-Counter Calculation and Decoding
PCDDS Private Circuit Digital Data Service
PC-DOS Personal Computer Disk-Operated System (IBM Inc.)
PCE P Bus Checker Enable
PCE Picture Control Entity
PCE Position Controller Equipment
PCF Plastic Clad Fiber
PCF Point Coordination Function
PCF Portable Compiled Format
PCFSK Phase Continuous Frequency-Shift Keying
PCH Paging Channel
PCH Patch Subsystem
PCH Precompiled Header file
PCH PunCHer
PCHK Parity Check
PCI Panel Call Indicator
PCI Peripheral Component(s) Interconnect(ion)
PCI Personal Communications Interface
PCI Personal Communications Internetworking
PCI Personal Computer Interface
PCI Presentation Context Identifier
PCI Programmable Communications Interfaces
PCI Programming Communication Interface
PCI Programming Communications Interface
PCI Protocol Control Indicator
PCI Protocol Control Information
PCIA Personal Communications Industry Association
PCIB Personal Computer Interface Bus
PCID Product Content Identifier
PCIM Packaged Core Interface Module
PCIU Power Cabling Interface Unit
PCL Portable Channel List
PCL Printed Circuit Layout
PCL Printer Control Language
PCL Product CM Lineup
PCL Product Computing Module Load
PCL5 Printer Control Language 5
PCLID Port Client ID
PCLM Packaged Core Line Module
PCM PC Magazine (periodical)
PCM Persistent Class Manager
PCM Personal Call Manager
PCM Plug-Compatible Manufacturer
PCM Pulse Code Modulation
PCM Punched Card Machine
PCM30 CEPT 30-channel PCM carrier system
PCMCIA Personal Computer Memory Card International Association
PCME Packet Circuit Multiplication Equipment
PCMF Persistent Class Manager Framework
PCMI Photo-Chromic Micro Image
PCMM Packaged Core Memory Module
PCMS Power Control and Monitoring System
PCMS Product Configuration Management System
PCN Personal Cellular Network
PCN Personal Communications Network
PCN Personal Communications Service
PCN PointCast Network
PCN Preliminary Completion Notice
PCN Presentation of Calling Name
PCN Product Change Notice
PCN Public Carrier Networks
PCNE Protocol Converter for Native X.25 Equipment
PCNE Protocol Converter for Non-SNA Equipment (SNA)
PCNM Packaged Core Network Module
PCNP PC Network Program (IBM)-SNA)
PCNT Public Carrier Networks Technology
PCO Percent Overflow
PCO Point of Control and Observation
PCompI Parameter Compatibility Information
PCOS Priority Class of Service
PCOS Public Class of Service
PCP Peripheral Call Process
PCP Primary Control Program
PCP Primary Cross-connection Point
PCP Printed Circuit Pack
PCP Product Cost Performance
PCP Protocol Conversion Permission
PCPC Point Code Prohibited Control
PCPM Packaged Core Power Module
PCPS Private Carrier Paging System
PCPT Precise Call Progress Tone
PCQ Per-Call Queue
PCR PC Resource (periodical)
PCR Peak Cell Rate
PCR Pont-to-Point SVC Cell Rate
PCR Portable Common Runtime
PCR Preventive Cyclic Retransmission
PCR Program Clock Reference
PCRT Process Cross-Reference Table
PCS PC Services
PCS PC Support/400
PCS Personal Call Screening
PCS Personal Communications Server
PCS Personal Communications Service
PCS Personal Communications Services
PCS Personal Communications System
PCS Personal Communicator System
PCS Personal Conferencing Specification
PCS Physical Coding Sublayer
PCS Plastic-Clad Silica
PCS Plastic-Clad Silica (Fibre Optics)
PCS Plesiochronous Connection Supervision
PCS Point Coordinated Station
PCS Power Conditioning System
PCS Preliminary Commercial Specification
PCS Processor Control System
PCS Professional Communication Society
PCS1900 Personal Communications Service working at 1900 MHz
PCS911 PCS E911
PCSBSD Bell South-Only PCS Call Delivery
PCSBSO Bell South-Only PCS Call Origination
PCSC PCS Switching Center
PCSDEL PCS Call Delivery
PCSG Public Contracts Specialists Group
PCSM Packaged Core Service Module
PCSMWT PCS Message Waiting
PCSO Power Control Safety Officer
PCSORG PCS Call Origination
PCSREG PCS Registration
PCSS Personal Communications Satellite Service
PCSS Programmable Cell Site Simulator
PCT Macintosh PICT File
PCT Per Call Type
PCT Per CenT
PCT Private Communications Technology
PCT Protocol Conformance Testing
PCT Public Cordless Telephone
PCTA Personal Computer Terminal Adapter
PCTE Portable Common Tool Environment (MAP/TOP)
PCTF Per-Call Test Failure
PCTJ PC Tech Journal (periodical)
PCTM Packaged Core Trunk Module
PCTR Protocol Conformance Test Report (ISO 9646)
PCTS Public Cordless Telephone Service
PCTS Public Cordless Telephone System
PCU Paging Control Unit
PCU Power Control Unit
PCU Primary Control Unit
PCUG Preferential CUG
PCUP Pipelined Cyclic Upstream Protocol
PCW PC World (periodical)
P-CW PCS Call Waiting
PCWG Personal Conferencing Work Group
PCWT Precedence Call Wait Terminating
PCX PC Paintbrush File
PCX PC Paintbrush Format
PCXM Packaged Core Expansion Module
PD Packed Decimal
PD Packet Data
PD Parameter Downloading
PD Partial Decorrelation
PD Partial Dial
PD Peripheral Device
PD Permanent Data
PD Personal Display
PD Phase-Change Dual-Technology
PD Photo Detector
PD Photo Diode
PD Photodetector
PD Photodiode
PD Physical Delivery
PD Physical Design
PD Polarity Detect
PD Post Dialing
PD Potential Difference
PD Power Distribution
PD PowerDrive
PD Profile Directory
PD Propagation Delay
PD Protocol Discriminator
PD Public Data
PD Public Domain
PD Pulse Dialling
PD Pulse Duration
PD&T Physical Design and Technology
PD/CD Phase-Change Dual/CD-ROM
PDA MDII: Partial Dial Abandon
PDA Personal Digital Assistant
PDA Power-Delay-Angle
PDA Process Deviation Authorization
PDA Programmable Digital Assistant
PDAD Proposed DAD
PDAS PCS Data Access Services
PDATA POTS Data Unit
PDAU Physical Delivery Access Unit
PDB Program Database
PDBCH Packet Data Broadcast Channel
PDBN Parameter Downloading Bundled Notify
PDBR Page Directory Base Register
PDC Page Description Communications
PDC Passive Dispersion Compensator
PDC Personal Digital Cellular
PDC Personal Digital Communications
PDC Personal Digital Communicator
PDC Plaza Distribution Center
PDC Policy Drafting Party
PDC Power Distribution Cabinet
PDC Power Distribution Center
PDC Primary Domain Controller
PDC Processor Daughter Card
PDC Professional Developers' Conference
PDC Program Delivery Control
PDC Propagation Delay Counter
PDCH Packet Data Channel
PDCH Physical Data Channel
PDD Packet Mode Data Terminating on the D-Channel
PDD Post Dialing Delay
PDD Product Definition Document
PDDA Physical Defined Display Area
PDE Page Directory Entry
PDE Parameter Departure Element
PDE Picture Data Entity
PDE Portable Data Entry (Unit)
PDE Presentation Data Element
PDE Product Development Environment
PDE Professional Development Environment
PDEF Physical Design Exchange Format
PDES Product Data Exchange Standard (TOP)
PDES Product Data Exchange Using STEP
PDF Portable Document File
PDF Portable Document Format
PDF Post-Detection Filter
PDF Power Density Function
PDF Probability Density Function
pdf Product Description File
PDFFA Praesodymium-Doped Fluoride Fiber Amplifier
PDG Program Dependence Graph
PDG Program Dependency Graph
PDH Plesiochronous Digital Hierarchy
PDI Personal Data Interchange
PDI Picture Description Instruction
PDIAL Public Dialup Internet Access List
PDIF Product Definition Interchange Format
PDIL Partial Dial
PDIL Plastic Dual-In-Line
PDIP Plastic Dual In-line Package
PDIP Plastic Dual-In-Line Package
PDI-P Path Payload Defect Indication
PDL Page Description Language
PDL Parameter Downloading
PDL Peripheral Diagnostic Language
PDL Program Description Language
PDL Project Description Language
PDL Project Description Language File
PDM Physical Data Model
PDM Physical Data Move
PDM Private Management Domain
PDM Pulse Density Modulated
PDM Pulse Duration Modulation
PDMA Phase Division Multiple Access
PDMA Polarisation Division Multiple Access
PDMA Provisioning-Driven Memory Administration
PDMX Programmable Digital Multiplexer
PDN Packet Data Network
PDN Parameter Downloading Notification
PDN Passive Distribution Network
PDN Plesiochronous Digital Network
PDN Positive Delivery Notification
PDN Power-DowN
PDN Premises Distribution Network
PDN Primary Directory Number
PDN Prime Directory Number
PDN Public Data Network
PDNP Parameter Downloading Notification Process
PDO Packet Data Optimized
PdO Palladium Oxide
PDO Performance Design Objective
PDO Portable Distributed Object
PDO Portable Distributed Objects
PDP Packet Data Protocol
PDP Parallel Data Processing
PDP PDN Protocol
PDP Plasma Display Panel
PDP Power Delay Profile
PDP Process Database
PDP Process Development Plan
PDP Programmed Data Processor
PDP Project Development Plan
PDPS Product Definition Process and Solutions
PDQ Parameter Departure Queue
PDQP Project Development Quality Plan
PDR Physical Data Receiver
PDR Pulse Density Requirement
PDS Pack Driver Specification
PDS Partitioned Data Set
PDS Persistent Data Service
PDS Physical Delivery Service
PDS Physical Delivery System
PDS Planetary Data System
PDS Power Distribution Shelf
PDS Power Distribution System
PDS Premises Distribution System (ATT)
PDS Priority Distribution System
PDS Processor Direct Slot
PDS Program Documentation Standard
PDS Project Data Server
PDSO Packet Data Security Overlay
PDSS Procurement Decision Support System
PDT MDII: Partial Dial Timeout
PDT Pacific Daylight Time
PDT Performance Diagnostic Tool
PDT Physical Data Transmitter
PDT Portable Data Terminal
PDT Prefix Digit Translation
PDT Product Development Team
PDT Program Development Tool
PDT Project Development Tool
PDT Protel Development Tool
PDT Protel-2 Development Tool
PDTC PCM-30 Digital Trunk Controller
PDTE Packet Data Terminal Equipment
PDU Packet Data Unit
PDU Payload Data Unit
PDU Plug Distribution Unit
PDU Port Data Unit
PDU Power Distribution Unit
PDU Protocol Data Unit
PDV Performance Data Visualization
PDV Presentation Data Value
PDV Prozess-Daten-Verarbeitung
PE Emergency Proving Period
Pe Emergency Proving Period
PE ISO country code for Republic of Peru
PE Packet leyer reference Event
PE Parity Error
PE Path End
PE Pathend
PE Peripheral Equipment
PE Phase Encoded
PE Phase Encoded (Digital Magnetic Disk/Tape Recording Format)
PE Phase Encoding
PE Physical Entity
PE Pictorial Element
PE Picture Element, pixel
PE Picture Entity
PE Port Enable
PE Portable Executable
PE Postal code for Prince Edward Island
PE Presentation Element
PE Probable Error
PE Processing Element
PE Processor Element
PE Programming Enabled
PE Protection Enable
PE Protective conductor
PE Protective Earth
PE Public Enquiry (ETSI)
PE Public Environment
PEB Peripheral Expansion Bus
PEB Process Environment Block
PEC Peak Digital Eye Closure
PEC Product Engineering Code
PEC Product Equipment Code
PEC Public Extension Circuit
PECC Product Engineering Control Center
PECR Pan European Cellular Radio
PECS Pan-European Cellular System
PED Protocol Encoder/Decoder
PEDN Pan-European Digital Network
PEDP Public Environment Dial Plan
PEE Processing Element Emulator
PEF Preferred Executable Format
PEFS Percentage Error Free Seconds
PEG Photographic Experts Group
PEG Process Engineering Group
PEG Public, Educational, or Governmental Access
PEGAD Permission Granted To Add
PEI Peak Emission Interval
PEI Progress Event Information
PEL Picture ELement
PEL Public Environment Element
pel (pixel) picture element
PELV Protective Extra Low Voltage
PEM Privacy Enhanced Mail
PEM Processing Entity Maintenance
PEN combined Protective conductor and Neutral conductor
PENBAL Peninsular Spain-Balearic Islands submarine cable
PENC Maximum Number of Protocol Errors Not Associated With A Call, Class I
PENCAN Peninsular Spain-Canary Islands submarine cable
PENCII Maximum Number of Protocol Errors Not Associated With A Call, Class II
PEND Pending Order System
PEo Originating Pathend
PEO Polymorphic Embedded Object
PEO Professional Engineers Ontario
PEP Packet Ensemble Protocol
PEP Peak Envelope Power
PEP Preemptive External Priority
PEP Protocol Extension Protocol
PEPR Physical End Point Reference
PER Packed Encoding Rules
PER Packet Error Rate
PER Permission
PERF PERForator
Perl Practical Extraction and Report Language
perl Practical Extraction and Report Language
pero Parameter Entity Reference Open
PERT Program Evaluation and Review Technique
PES Packetized Elementary Stream
PES Percentage Errored Seconds
PES Power and Environmental Systems
PES Privacy Enhanced Sockets
PES Proposed Encryption Standard
PET Positron Emission Tomography
PET PSTN Enhanced Trunk
PEt Terminating Pathend
PETAR Pan European Television Audience Research
PETS Parameterized Executable Test Suite
PEV Peak Envelope Voltage
PEX Packet Exchange Protocol
PEX PHIGS Extension to X Window System
PEX-SI PEX Sample Implementation
PF ISO country code for French Polynesia
PF Parameter Format
PF Parity Flag
pf Picofarad
PF Power Factor
PF Power Failure
PF Power Feature
PF Presentation Function
PF Program Feature
PF Programmable Function
PF Protocol Family
PF Pulse Frequency
PF Punch ofF
PFA Packet and Frame Access
PFA Page Frame Address
PFA Perfluoralkoxy
PFA Project Feedback Assessment
PFA Protocol Fault Analyzer
PFAC Private Facility Access
PFAR P Bus Fault Address Register
PFB Provisional Frequency Board
PFBPSM Protected Fixed Block Pool Store Manager
PFC Port Flow Control
PFC PowerBuilder Foundation Classes
PFC Protocol Field Compression
PFD Power Flux Density
PFE Passive Feature Element
PFE Power Feed Equipment
PFEP Programmable Front-End Processor
PFG PathFile Generator
PFG Private Facility Group
PFI Pbus-Fbus Interface
PFI Physical Fault Insertion
PFIX Power Failure Interrupt
PFJ Parts for Java
PFK Program Function Key
PFM Parameter Frame Management
PFM Printer Font Metrics
PFM Proto Flight Model
PFM Pulse Frequency Modulation
PFN Page Frame Number
PFN Physical Frame Number
PFN Pseudo Facility Number
PFN Pulse Forming Network
PFP Preemptive Fixed Priority
PFQ Performance Feedback Questionaire
PFR MDII: Polarity Failure
PFR Periodical Physical Frame Sublayer
PFR Power-Fail Restart
PFS Physical File System
pFS Primary Frequency Supply
PFSR P Bus Fault Status Register
PFT Page Frame Table
PFX Personal Information Exchange
PFX Prefix
PFXA Prefix Announcement
PG ISO country code for Papua New Guinea
PG PaGe
PG Paging
PG Pattern Generator
PG Peer Group
PG Protective Ground
PG Pulse Generator
PGA Page Always
PGA Pin Grid Array
PGA Pin Grid Array (VLSI Packaging)
PGA Professional Graphics Adapter (PC's)
PGA Programmable Gate Array
PGC Polynomial Generator Checker
PGC Positive Graphic Controller ("Paper-white" Screen)
PGI Parameter Group Identifier
PGID Peer Group Identifier
PGID Process Group ID
PGL Peer Group Leader
PGM Portable Graymap
PGM ProGraM
PGML Precision Graphics Markup Language
PGN Portable Game Notation
PGP Pretty Good Privacy
PGP Pretty Good Protection
PGPS Packet Generalized Processor Sharing
pgs Pages
PGS Pair Gain System
PGS Professional Graphical system (IBM)
PGTC Pair-Gain Test Controller
PH Data Link Layer (Layer 2)-Physical Layer (Layer 1) Interface
PH ISO country code for Republic of the Philippines
PH Packet Handler
PH Page Header
PH Phantom Circuit
PH Phase
PH PHysical (layer)
PH Physical Layer
PH Physical Layer Service
Ph Physical Layer Service
PH Prentice Hall
PH Presentation Header
PH Protocol Handler
PH- communication between data link layer and PHysical layer
PHA Protocol Handler for ATM
PH-AI Primitive Activate Indication
PHARE Poland-Hungary Assistance on the Economic Reconstruction
PHASE Philips Advanced Synchronous Equipment
PhC Physical Connection
PHC Positive High Current
PHD Permanent Hold
PHd Pocket Hard-disk
PH-DI Primitive De-activate Indication
PHF Packet Handler Function
PHF Packet Handling Function
PHGI Programmer Hierarchical Graphics Interface
PHI Packet Handler access point Interface
PHI Packet Handler Interface
PHIGS PHotorealistic Interactive Graphic System (3-Dimensional Imaging Standard)
PHIGS Programmer's Hierarchical Interactive Graphics Standard
PHIGS Programmer's Hierarchical Interactive Graphics System
PHILSIN Philippines-Singapore submarine cable
PHIU Packet Handler Interface Unit
PHL PHysicaL
PhL PHysical Layer (OSI)
PHM Packet Handling Module
PhM PHase Modulation
PHOTAC Photo Typesetting And Composing
PHP Personal Handy Phone
PHP Pocket Handy Phone
PHS Personal Handy Phone System
PHS Personal Handyphone System
PhS PHysical Service
PHS Portable HandSet
PHT Packet Hashing Table
PHV Protocol Handler for Voice
PHY Physical
PHY Physical Layer
PHY Physical Medium Dependent Sublayer
PHZ Pre-Handover Zone
PI Parameter Identifier
PI Participant Information
PI Pause Insertion
PI Peripheral Interface
PI Personality Interface
PI Physical Interface
pi Pica
PI Picture Identifier
PI Presentation Indicator
PI Privacy Indicator
PI Private Interface
PI Process Instructions
PI Processor Interface
PI Product Improvement
PI Product Integrity
PI Program Identified
PI Progress Indicator
PI Protocol Identifier
PI Protocol Interpreter
PIA Peripheral Interface Adapter
PIA Personal Information Appliance
PIAS PCS Integrated Access Systems
PIAT Peripheral Interface And Timer
PIC Payload Integrity Check
PIC Peripheral Interface Card
PIC Peripheral Interface Controller
PIC Personal Identification Code
PIC Personal Intelligent Communicator
PIC Plastic-Insulated Cable
PIC Point In Call
PIC Polyethelene Insulated Cable
PIC Polyolefin Insulated Cable
PIC Position-Independent Code
PIC Power Integration Coordinator
PIC Preferred Interexchange Carrier
PIC Pre-subscribed Interexchange Carrier
PIC Primary Interexchange Carrier
PIC Primary InterLATA Carrier
pic Processing Instruction Close
PIC Programmable Interrupt Controller
PIC Protocol Implementation Conformance
PICB Peripheral Interface Control Bus
PICC Primary Interexchange Carrier Charge
PICH Pilot Channel
PICS Platform for Internet Content Selection
PICS Platform for Internet Content Specification
PICS Plug-in Inventory Control System
PICS Protocol Implementation Conformance Statement
PICT Macintosh Bitmap File
PID Packet Identifier
PID Parameter Identifier
PID Password Identification
PID Persistent Identifier
PID Persistent Object ID
PID Personal Information Delivery
PID Portable Identification Code (=MIC+HIC)
PID Private Identifier
PID Process ID
PID Process Identifier
PId Process Identifier
PID Processor Identification
PID Processor Identification Register
PID Proportional/Integral/Differential (Controller)
PID Protocol Identifier
PIDB Peripheral Interface Data Bus
PIDL Pseudo IDL
PIE Product Information Environment
PIE Protocol Independent Environment
PIEEE Proceedings of the IEEE
PIER Procedures for Internet/Enterprise Renumbering
PIF Physical Interface
PIF Program Information File
PIFS Point Coordination Function Interframe Space
PIG Practical Information Guide (ETSI)
PIG Process Improvement Group
PIGI Processor Interface to Gigabit Interconnect
PIGUI Platform-Independent GUI
PIH Pin In Hole
PII Pentium II
PIL PILot
PILOT Pilot Directory Number
PIM Personal Information Management
PIM Personal Information Manager
PIM Process Information Model
PIM Protocol-Independent Multicast
PIM Pulse Interval Modulation
PIM-DM Protocol Independent Multicast-Dense Mode
PIMRC Personal, Indoor and Mobile Radio Communications
PIM-SM Protocol Independent Multicast-Sparse Mode
PIN Personal Identification Number
PIN P-Intrinsic Diode
PIN Positive material-Intrinsic-Negative material
PIN Positive-Insulator-Negative
PIN Positive-Intrinsic-Negative
PIN Procedural Interrupt Negative
PIN Public Infrastructure Network
PIN Public Initiating Node
PINC Preferred International Carrier
PINC Preferred International IC Indicator
PINCI Preferred International Carrier Indicator
PIND Particle Impact Noise Detection
PIND PIN Digits
Pine Program for Internet News & Email
PINEC Private Networks and Interexchange Carriers
PING Packet Internet Groper
PING Packet Internet Groper (test tool for Ethernet)
PINT PSTN and Internet Interworking
PINX Private Integrated Network eXchange
PINX Private Integrated Network Exchange
PINX Private Integrated Services Network Exchange
PIO Parallel Input/Output
pio Processing Instruction Open
PIO Programmable Input/Output
PIO Programmed Input/Output
Pip "P" Internet Protocol
PIP Partners in Provisioning
PIP Peripheral Interchange Program
PIP Peripheral Interface Process
PIP Peripheral Interface Processor
PIP Personal Information Processor
PIP Picture in Picture
PIP Procedural Interrrupt Positive
PIP Product Integration Program
PIP Product Introduction Planning
PIP Product Introduction Procedure
PIP Proposed Implementation Plan
PIPO Parallel-In Parallel-Out
PIPO Platform-Independent Portable Objects
PIR Peak Information Rate
PIR Program Interrupt Request
PIRS Personal Information Retrieval System (PC Data Base)
PIS Procedure Interrupt Signal
PIS Product Interface Specification
PIS Project Information Summary
PISN Private Integrated Services Network
PISN Private Integrated Services Networking
PISO Parallel-In Serial-Out
PISTOL IBM PC-based ISDN Test Tool
PIT Participant Information Time
PIT Personal Information Telecommunication
PIT Process Improvement Team
PIT Programmable Interval Timer
PITCOM Parliamentary Information Technology COMmittee (UK)
PIU Path Information Unit (SNA)
PIU Peripheral Interface Unit
PIU Plug In Unit
PIV Peak Inverse Voltage
PixBlt Pixel Block Transfer
pixel picture element
PIXIT Protocol Implementation Extra Information for Testing
PIXIT Protocol Implementation eXtra Information for Testing
PJ Pointer Justification
PJC Pointer Justification Count
PJE Pointer Justification Event
PJL Printer Job Language
PJPEG Progressive JPEG
PK ISO country code for Islamic Republic of Pakistan
PK Protection Key
PK Protocol Kernel
PK Public Key
PKCS Public Key Crypto System
PKCS Public Key Cryptography Standards
PKCS Public Key Crypto-System
PKE Public Key Encryption
PKERN Protocol Kernel
pkern Protocol Kernel
PKI Philips Kommunikations Industrie
PKI Public Key Infrastructure
PKIX Public Key Infrastructure Working Group
PKMS Public Key Management System
PKP Public Key Partners
PKT Packet
PL ISO country code for Polish People's Republic (Poland)
PL PAD Length
PL Parameter Length
PL Party Line
PL Path Loss
PL Permanent Line
PL Photoluminescence
PL Physical Layer
PL Planning Letter
PL Precedence Level
PL Presentation Layer (OSI)
PL Private Line
PL Programming Language
PL Proprietary Link
PL&T Programming Languages and Tools
PL/1 Production Level 1
PL/1 Programming Language One
PL/2 Production Level 2
PL/I Programming Language One
PL/M Programming Language for Microcomputers
PL/M Programming Language for Microprocessors
PL1 Proprietary Link 1
PL2 Proprietary Link 2
PL3 Proprietary Link 3
PLA Physical Level Adapter
PLA Plex Load Appraisal
PLA Programmable Logic Array
PLACO PLAnning COmmittee (ISO)
PLAR Private Line Automatic Ringdown
PLAS Private Line Assured Service
PLATINUM Platform providing Integrated services to New Users of Multimedia
PLB Personal Locator Beacon
PLBP Packet-Layer Binary Parameters
PLC Permanent Logical Connection
PLC Physical Layer Control
PLC Planar Lightwave Circuit
PLC Plant Level Controller
PLC Positive Low Current
PLC Power Line Carrier (Telecommunication over power lines)
PLC Powerline Communication
PLC Power-Line Communication
PLC P-phone Line Card
PLC Private Leased Circuit
PLC Private Line Concentrator
PLC Product Line Center
PLC Programmable Logic Controller
PLCA Personalized Local Calling Area
PLCA Programmable Logic Cell Array
PLCC Plastic Lead Chip Carrier
PLCC Plastic Leadless Chip Carrier
PLCP Physical Layer Convergence Procedure
PLCP Physical Layer Convergence Protocol
PLD Partial Line Down
PLD Physical Line Drawer
PLD Power Line Disturbance
PLD Programmable Logic Device
PLE Path Length Efficiency
PLE Programmable Logic Element
PLGA Plastic Land-Grid Array
PLGC PCM-30 Line Group Controller
PLI Park Length Indicator
PLI Physical Layer Interface
PLIN Point List Index Number
PLIT Prohibit Line Insulation Testing
PLK Primary Link
PLL Permanent Logical Link
PLL Permanent Logical Loop
PLL Phase-Locked Loop
PLL Physical Link Sublayer
PLLC Permanent Logical Link Connection
PL-LCD Photoluminescent Liquid Crystal Display
PLM Path Label Mismatch
PLM PCM Level Meter
PLM Physical Link Maintenance
PLM Product Line Management
PLM Product Line Manager
PLM Pulse Length Modulation
PLM Pump Laser Module
PLMN Public Land Mobile Network
PLMR Private Land Mobile Radio
PLMTS Public Land Mobile Telecommunication Systems
PLO Permanent Lockout
PLO Permanently Locked Out
PLO Phase Locked Oscillator
PLOAM Physical Layer OA&M
PL-OAM Physical Layer Operation and Maintenance
PLOP Pattern Languages of Programs
PL-OU Physical Layer Overhead Unit
PLP Packet Layer Procedures
PLP Packet Layer Protocol
PLP Packet-Level Procedure
PLP Plug-Up
PLPP Physical Layer Protocol Processor
PLR Pulse Link Repeater
PLS Personal Library Software
PLS Physical Layer Service
PLS Physical Layer Signalling (IEEE 802)
PLS Physical Signaling
PLS PhysicaL Signalling
PLS Prime Line Select
PLS Private Line Service
PLS Product Library System
PLS Program Load Segment
PLSQ Packet Layer Sequencing
PLSQ Packet Level Sequencing
PLT Parallel Lower Tester
PLT Procedure Linkage Table
PLTC PCM30 Line/Trunk Controller
PLTTY Private Line Teletypewriter Service
PLU Partial Line Up
PLU Primary Logical Unit
PLUS Peripheral Life Upgrade Strategy
PLV Presentation-Level Video
PLV Production Level Video
PLWS Packet-Layer Window Size
PM ISO country code for Saint Pierre and Miquelon
PM Packet Mode
PM Packet Multiplexer
PM Performance Management
PM Performance Monitoring
PM Peripheral Module
PM Person Month
PM Personal Mobility
PM Phase Modulation
PM Photo Multiplier
PM Physical Medium
PM Picture Mode
PM Post Meridian
PM Power Management
PM Presentation Manager
PM Preventative Maintenance
PM Preventive Maintenance
PM Primary Maintenance
PM Privacy Message
PM Process Manager
PM Process Monitor
PM Processable Mode
PM Profile Manipulation
PM Project Management
PM Project Manager (ETSI)
PM Protocol Machine
PM Pulse Modulation
PM11 Processable Mode No. 11
PMA Period Measurement with Additional Transition Detection
PMA Physical Medium Attachment
PMA Prompt Maintenance Alarm
PMAC Performance Monitoring Adjunct Circuit
PMAN Personal MOBITEX Access Number
PMAP Personal Mobility Application Part
PMB Peripheral Module Busy
PMB Pilot Make Busy
PMB Processor-Memory Bus
PMBS Packet Mode Bearer Service(s)
PMBX Private Manual Branch Exchange
PMBX Private Manual Branch eXchange
PMC PCI Mezzanine Card
PMC Peripheral Component Interconnect Mezzanine Card
PMC Peripheral Message Controller
PMC Personal Mobile Communicator
PMC Port Message Channel
PMC Printed Meter Check
PMC Private Meter Check
PMC Process Management Council
PMC Project Management and Committee support department (ETSI)
PMD Packet Mode Data
PMD Packet-Mode Data
PMD Physical Layer Medium Dependent
PMD Physical Media Dependent
PMD Physical Media Dependent Layer (FDDI)
PMD Physical Medium Dependent
PMD Polarization Mode Dispersion
PMDARI Packet-Mode Data Aggregate Recording Interval
PMDB Packet-Mode Data Billing Records
PMDB Personal Mobility Database
PMD-B Packet Mode Data on the B-Channel
PMD-D Packet Mode Data on the D-Channel
PMDE Peripheral Module Development Environment
PMDEBUG Peripheral Module Debug
PMDIPVCB Packet-Mode Data Intercom PVC Calls Billing Records
PMDIVCB Packet-Mode Data Intercom Virtual Calls Billing Records
PMDVCB1 Packet-Mode Data Virtual Circuits Billing Records for Type 1 Usage
PMDVCB2 Packet-Mode Data Virtual Circuit Billing Records for Type 2 Usage
PME Previous Message Error
PMEXEC Peripheral Module Executable Program
PMF Parameter Management Frame
PMF Primary Master Format
PMFDA Packet Module File Data Access
PMFJI Pardon Me For Jumping In
PMH Protocol Message Handler
PMHS Private Message Handling System
PMI Performance Monitoring Inhibited
PMI Peripheral Module International
PMID Portable Part MAC Identity
PMIST Peripheral Module Intercept System Test
PML Peripheral Messaging Link
PML Peripheral Module Load
PML Phone Markup Language
PML Process Maturity Level
PML Programmable Macro Logic
PMLCD Passive-Matrix LCD
PMLT Prohibit Mechanized Line Testing
PMM Period Measurement with Missing Transition Detection
PMM Personal Mobility Manager
PMMA Polymethyl Methacrylate
PMMU Paged Memory Management Unit
PMO Present Method of Operation
PMO Process Management Object
PMO Project Management Office
PMON Power Supply Monitor
PMOS P-Channel Metal Oxide Semiconductor
PMOSFET p-Type MOSFET
PMP Parallel Multi-Path
PMP Point-to-Multipoint
PMP Process Management Process
PMP Project Management Plan
PMP Protected Monitoring Point
P-MP Point to MultiPoint
p-mp Point-to-Multipoint
PMR Private Land Mobile Radio
PMR Private Mobile Radio
PMR Public Mobile Radio
PMRO Pilot Measurement Request Order
PMS Pantone Matching System
PMS Performance Management System
PMS Permitted Maximum Signal
PMS Processor, Memory, Switch
PMS Production Management System
PMS Property Management Systems
PMS Public Message Service
PMT Personal Mobile Telecommunications
PMT Photomultiplier Tube
PMT Process Management Team (ETSI)
PMT Program Management Team
PMT Program Map Table
PMTS Pruefen, Messen und Melden fur die DSt TS (Q-3 Based Testing,
Measuring, and Recording for TS Service Center)
PMTS Pruf-, Mess- und Meldesystem fur den Telekom Service (Q.3-based
testing, measuring and recording for TS service centre)
PMTU Path Maximum Transmission Unit
PMU PLL Management Unit
PMVC Permanent Multicast Virtual Circuit
PMX Packet MultipleXer (ISDN)
PMX Private Manual Exchange
PMxAs Primaermultiplexanschluss (Primary Access Unit)
PN ISO country code for Pitcairn Island
Pn Normal Proving Period
PN Packet Number
PN Part Number
PN Peripheral Node
PN Permanent Nucleus
PN Permanent Nucleus (CEPT)
PN Personal Number
PN Physical Network
PN Polish Notation (Calculators)
PN Private Network
PN Pseudonoise
PN Pseudorandom Noise
PN Pseudo-Random Number
PN Public Network
PN Publication Note
PN PuNch off
p-n Postive-Negative
PNA Packet Network Adapter
PNA Parallel Network Architecture
PNA Per Node Aggregator
PNA Phoneline Networking Alliance
PNB Pacific Northwest Bell Telephone
PnB Provisioning and Billing
PNC Paging Network Controller
PNC-H Paging Network Controller- Home
PNC-H(DIV) Divert Adc's Home Paging Network Controller
PNC-H(FS) Fixed Subscriber's Home Paging Network Controller
PNC-I Paging Network Controller- Input
PNC-OS Paging Network Controller- Operations System
PNCP Peripheral Node Control Point (SNA)
PNCS Passport Network Clock Synchronization
PNC-T Paging Network Controller- Transmit
PND Personal Name Delivery
PND Present Next Digit
PND Private Network Traveling Class Mark Digits
PND Public Networks Development
PNDDB Personal Name Delivery Database
PNE Parameter Notification Element
PNE Path Number Efficiency
PNE Présentation des Normes Européennes (CEN/CENELEC)
PNFC Primal Network Flow Convex
PNG Portable Network Graphics
PNI Permit Next Increase
PNI Privacy Name Indicator
PNI Privacy of Name Indicator
PNIC Private data Network Identification Code
PNID Precedence Network In-Dialing
P-NID Precedence Network In-Dialing
PNLU Public Network serving the Local User
PNM Portable Any Map
PNM Pulse Number Modulation
PNNI Private Network-Network Interface
P-NNI Private Network-to-Network Interface
PNO Public Network Operator
PNOIG Public Network Operators Interconnect Group
PnP Plug and Play
PNP Positive-Negative-Positive
PNP Private Numbering Plan
p-n-p Positive-Negative-Positive
PNQ Parameter Notofication Queue
PNR Private Network Record
PNR Private Number Rejection
PNS Personal Number Service
PNS Private Network Signalling
PNT Paint document file
PNT Private Network Termination
PNVS Pilot Night Vision Sensor (Military Avionics)
PNWB Pacific Northwest Bell
PNX Private Network Exchange
PO Parameter Object
PO Partial Outage
PO Pending Order
PO Persistent Object
PO Post Office
PO Presentation Object classes
PO Primary Objective
PO Protocol Object
PO Protocol Operation
PO Punch
PO Purchase Order
POA Portable Object Adapter
POA Post Office Agent
POACH Personal computer On-A-CHip (ZyMOS Inc.)
POC Point of Contact
POC Power-On Confidence
POC Processor Outage Control
POCE Pantone Open Color Environment
POCSAG Post Office Code Standardisation Advisory Group
POD Pay On Delivery
PODP Public Office Dialing Plan
PODS Plain Old Digital Services
POEEJ The Post Office Electrical Engineers' Journal (periodical)
POF Pending Order File
POF Plastic Optical Fiber
POF Point of Failure
POFID Pending Order File Identifier
POFS Private Operational Fixed Services
POGA Pictures of Graph Algorithms
POH Path Overhead
POI Path Overhead Indicator
POI Point of Initiation
POI Point Of Interconnection (with PSTN)
POI Point of Interface
POL POLarisation
POL Policy file
POL Portable Originated Link
POL Problem Oriented Language
POLL Polled
POM Path Overhead Monitoring
POM Persistent Object Manager
POMMO Page OMMO
POMS Port Management System
PON Passive Optical Network
PON Purchase Order Number
POO Post Office Order
POP Percentage of Ownership times Population of the market
POP Performance-Oriented Practice
POP Picture Outside Picture
POP Point of Presence
PoP Point of Presence
POP Post Office Protocol
POP Procedure-Oriented Practice
POP2 Post Office Protocol 2
POP3 Post Office Protocol 3
POPL Principles of Programming Languages
POR Pacific Ocean Region (INTELSAT)
POR Plan of Record
POR Plan of Reorganization
POR Point of Return
POR Power On Reset
PORS Path-Oriented Routing Software
PORS Path-Oriented Routing System
POS Packet Over SONET
POS Passive Optical Splitter
POS Persistent Object Service
POS Point of Sale
POS Point of Synchronization
Pos Position
POS Positive
POS Priority On-Site service
POS Programmable Option Select
POSE Portable Operating System Extension
POSI Promotion Conference for OSI
POSIX Portable Operating System for computer environment (IEEE/UNIX)
POSIX Portable Operating System Interface
POSIX Portable Operating System Interface based on UNIX
POSIX Portable Operating System Interface for Computer Environments
POSIX Prortable Operating System Interface for Unix
POSR Private Operator Services Record
POST Power On Set Test
POST Power-On Self Test
POT Plain Ordinary Telephone
POT Point of Termination
POT(S) Plain Old Telephone (Service)
POTS Plain Old Telephone Service
POTS Plain Ordinary Telephone Service
POTV Plain Old Television
POV Persistence of Vision
POV Point of View
POWER Performance Optimization With Enhanced RISC
PP Packet Pipe
pp Pages
PP Paper tape Punch
PP Parallel Port
PP ParcPlace
PP Peripheral Processor
PP Pointer Processor
PP Point-to-Point
PP PolyPropylene
PP Portable Part
PP Power Platform
PP PowerPC Platform
PP Preceding Page
PP Preferred Plane
PP Preplan
PP Previous Page
PP Program Port
PP Project Plan
PP Protocol Processor
PP Provisioning Point
p-p peak-to-peak
p-p Point-to-Point
PP1 Power Platform, Type 1
PP2 Power Platform, Type 2
PPA Physical Point of Attachment
PPA Plesiochronous Path Adaptation
PPA Position Probability Area (ship-navigation)
PPA Primary Physical Address
PPB Parts Per Billion
PPB Permanent Packet B Channel
PPBL Peripheral Platform Base Library
PPC Packet Processing Complex
PPC Pay-Per-Channel
PPC Peak Power Control
PPC Portable Personal Computer
PPC PowerPC
PPC Pre-emptive Priority Call (TETRA)
PPC Prepaid Card
PPC Primary Point Code
PPC Pump Peripheral Controller
PPCH Packet Paging Channel
PPCS Person to Person Collect and Special Instruction
PPD ParcPlace-Digitalk
PPD Partial Packet Discard
PPD PostScript Printer Description
PPDCI Provisioning PSE Driver CI
PPDF Programmable Pulse Driver/Formatter (High-Speed GaAs IC,Harris)
PPDN Public Packet Data Network
PPDTR Preplanned Dynamic Traffic Routing
PPDU Packet Data Protocol PDU
PPDU Presentation Protocol Data Unit
PPE Packet Processing Element
PPE Personal Protective Equipment
PPE Primative Procedure Entity
PPE Primitive Procedure Entity
PP-EOC Point-To-Point Embedded Operations Channel
pp-eoc Point-To-Point Embedded Operations Channel
PPF Photosensitive Polymer Film
PPF Primitives Processing Function
PPFY Post Programming Functional Yield (PAL Devices)
PPG Public Procurement Group
PPGA Plastic Pin-Grid Array
PPhone Proprietary Phone
P-Phone Proprietary Phone
PPI Phase Parity Identifier indicating which CW must be used for descrambling
PPI Plan Position Indicator (radar)
PPI Plesiochronous Physical Interfaces
PPI Precise-Pixel Interpolation
PPI Processor Peripheral Interface
PPI Program Port Interface
PPI Programmable Peripheral Interface
PPIC Primary Preferred IC Indicator
PPIC Primary Preferred Interexchange Carrier
PPICI Primary Preferred Interexchange Carrier Indicator
PPID Parent Process ID
PPK Perimeter Park
PPL Point-to-Point Link
PPL Pre-Patched XPM Load
PPL Product PM Lineup
PPL Programmable Path Logic
PPL PVN Priority Line
PPLN Preplan
ppm Pages Per Minute
PPM Pages Per Minute (Printers)
ppm parts per million
PPM Periodic Pulse Metering
PPM Peripheral Processor Message
PPM Portable Pixmap
PPM Presentation Protocol Machine
PPM Pulse Phase Modulation
PPM Pulse Position Modulation
PPMP Peripheral Processor Message Processor
PPN Process Primes Network
PPP Paging Party Pays
PPP Parametric Performance Prediction
PPP Point-to-Point serial-line Protocol (IETF/TCP/IP)
PPP Priority Bits
PPP-M PPP Multilink
PPPML PPP Multilink
PPQFP Power Plastic Quad Flat Pack
PPQN Parts Per Quarter Note
PPR Partial Page Request
PPR Path-Protected Ring
PPR Pulsed Progressing Read-out (TV Cameras)
PPRCH Packet Paging Response Channel
Ppriv Private Photographic Profile
PPRS Public Policy and Regulatory Solutions
PPS Packets Per Second (PSDN/X.25)
PPS ParcPlace Systems
PPS Partial Page Signal
PPS Path Protection Switching
PPS Permanent Presentation Status
PPS Port Presentation Services
PPS Pre-/Post-Service
PPS Preliminary Product Specification
PPS Public Packet Switched Network
PPS Pulses Per Second
PPSC-IT Public Procurement SubCommittee for Information Technologies (CEC)
PPSC-IT Public Procurement Subcommittee-Information Technology Sector
PPSN Public Packet-Switched Network
PPSNGR Public Packet Switched Network Generic Requirements
PPSRV Pre/Post-Service
PPSS Public Packet Switched Services
PPST ParcPlace Smalltalk
PPT Packet Payload Type
PPT Permanent Part Time
PPT PowerPoint
PPTM Protocol Profile Test(ing) Methodology
PPTP Point-to-Point Tunneling Protocol
PPTU PDUs Per Time Unit
PPU Packet Processing Unit
PPV Pay Per View
PPV Pay-Per-View
PPV Perprocess Vector
ppv Perprocess Vector
PPVM Peripheral Processor Virtual Machine
PPVW ParcPlace VisualWorks
PPWA Period/Pulse-Width Accumulator
PPx Power Platform, Type x
PPXL PrePatched XPM Load
PQ Postal code for Quebec
PQ Primary Questionnaire (CEN)
PQ Priority Queuing
PQ Product Quality
PQET Print Quality Enhancement Technology
PQFP Plastic Quad Flat Pack
PQFP Plastic Quad Flat Package
PQH Packet Query Handler
PQR Patch Quality Record
PQR Post-Queue Routing
PR ISO country code for Puerto Rico
PR Paging Receiver
PR Paper tape Reader
PR Partial Response
PR Path Replacement
PR Pattern Recognition
PR Phase Recording
PR Photoresist
PR Phrase Representation
PR Phrase SDL Representation
PR Preamble
PR Preference
PR Premature Release
PR Pre-Release
PR Preroute
PR Presentation Restriction
PR Primary Radar
PR Primary Residential
PR Priority
PR Product Reliability
PR Program-Like Representation
PR Pseudo-Random
PR Public Relation
PR Pulse Rate
PR Pulsing Relay
PR1 Priority One Line
PR2 Priority Two Line
PR4ML Partial Response Class 4 Maximum Likelihood
PRA Primary Rate Access
PRA Product Release Authorization
PRACH Packet Random Access Channel
PRACL Page-Replacement Algorithm and Control Logic
PRAG Primary Rate Agency
PRAM Parallel Random-Access Machine
PRAM Parameter RAM
PRART Problem Reporting and Resolution Tracking
PRB Primary Reference Burst
PRB Process Review Board
PRB Product Release Baseline
PRBS Pseudo-Random Binary Sequence
PRBS Pseudo-Random Binary Source
PRBS Pseudo-Random Bit Sequence
PRBS(215-1) Pseudo Random Bit Sequence as defined in subclause 2.1 of CCITT Recommendation O.151
PRBX Polled Report-By-Exception
PRC Primary Reference Clock
PRC Primary Routing Center
PRC Priority Request Channel
PRC Processor Return Code
PRC Protocol Reference Configuration
PRCA Proportional Rate Control Algorithm
PRCC PCM-30 Remote Cluster Controller
PRD Performance Requirement Document
PRD Pseudo-Random Data
PRDB Policy Routing Database
PRDI Path Remote Defect Indication
PRDMD Private Directory Management Domain
PRDN Primary DN
PRE Preemption
PRE PREfix
PRE Preformatted Text (HTML tag)
PRE Preliminary
PRE Prepay Coin Telephone
PRE Protectional Reservation Equipment
PRE Protective Reservation Equipment
PREAM Preamble
Pref CUG Preferential CUG
PREL Planned Release
prEN Proposed European Standard
PReP PowerPC Reference Platform
PREP Project Review Establishing Priorities
PREST Politique de REcherche Scientifique et Technique (EEC)
prETS Preliminary European Telecommunications Standard
PRF Pulse Repetition Frequency
PRFCUG Preferential Closed User Group
PRFD Pulse Recurrence Frequency Discrimination
PRFHNT Preferential Hunt
PRFLST Preferential Hunt List
PRFM Performance
PRG Progress Indicator message
PRG Progress Information
PRG Purge
PRH Preferential Hunt
PRH Primary Hunt
PRHW Plane Resolution Hardware
PRI Personal Identification Number Restriction Indicator
PRI Pre-Release Indication
PRI Primary
PRI Primary Rate Interface
PRI PRIority
PRI PRocedure Interrupt
PRI Protection Release Inhibited
PRIBCH PRI B-Channel Trigger
PRID2E Portfolio Renewal through Integrated Design and Delivery Excellence
PRI-ISDN Primary Rate ISDN
PRINAME Primary Rate Interface Name
PRINCE-S Private-Network Computer-Based Expert System for Synchronization
PRIPUB2WAY PRI 2-Way Traffic, from/to Public Network
PRIPUBIN PRI Inward Traffic, from Public Network to PRI
PRIPUBOUT PRI Outward Traffic, from PRI to Public Network
PRISM Protocol Independent Set of Messages
PRISS Primary Rate Interface Service Supervisor
PRJ Project File
PRK Call Park
PRL Peripheral Recovery Loader
PRL Peripheral Remote Loader
PRL Population Rule Language
PRL Privacy Release
PRM Packet Radio Measurement
PRM Packet Radio Monitoring
PRM Performance Report Message
PRM Physical Resource Manager
PRM Premium Rate
PRM Processor Recovery Message
PRM Programmer's Reference Manual
PRM Protocol Reference Model
PRM Pulse Rate Modulation
PRMA Packet Reservation Multiple Access
PRMC Premium Charging
PRMD PRivate Management Domain (MHS/X.400)
PRML Partial Response Maximum Likelihood
PRMP Product Release Management Process
PRN Periodic Ring Notification
PRN Print File
PRN Printer
PRN Pseudo-Random Noise
PRNA Private Network Access Billing Records
PRNET Packet Radio Net
PRNG Pseudorandom Number Generator
PRO Planning and Reporting Officer (ETSI)
PRO Processor Outage
PROC Procedure
PROC Processor
PROCVAR Procedure Variable
procvar Procedure Variable
PRODAT Planungssystem fur digitale Anschlusse (Planning System for Digital Lines)
PRODID Product Identifier
ProdID Product Identifier
PROFOT Productization Focus Team
PROFS PRofessional OFfice System (SNA)
PROG Program
PROG Progress message
PROLOG Programming in Logic
PROLOG PROgramming in LOGics (Groupe d'Intelligence Artificielle)
PROM Programmable Read-Only Memory
PROMETHEUS Programme for a European traffic system with highest efficiency and unprecedented safety
PROMETHEUS PROgraMme for European Traffic with Highest Efficiency and Unprecedented Safety
PROMIS-SS PROvisioning and Maintenance Info System-Special Services (CSC-ATT)
ProSTAR Problem and Service Tracking and Reporting System
PROT Protected Store
PROTEL Procedure-Oriented Type Enforcing Language
PROTEL-2 Procedure-Oriented Type Enforcing Language-2
PROV Provisioning
PROVE Provision of Verification
PROX Prohibit Interexchange Carrier Selection
PRP Path Replacement Propose
PRP Preroute Peg Count
PRP Primary Routing Point
PRR Path Replacement Re-use
PRR Previously Rerouted
PRR Pulse Repetition Rate
PRREC Premium Rate Recording
PRRM Pulse Repetition Rate Modulation
PRRR PRR Result
PRS Pairs
PRS Path Replacement Setup
PRS Premium Rate Service
PRS Primary Reference Source
PRS Print Services
PRS Problem Reporting System
PRS Problem Resolution System
PRS Pseudo Random Sequence
PRS Pseudo-Random Sequence
PRS CAT PRS Categorization
PRSB Pseudo-Random Sequence Binary
PRSDOC PRS Document
PRSG Pseudo-Random Sequence Generator
prsid PRS Identifier
PRSM Post Release Software Management
PRSM Post Release Software Manager
PRSM Post-Release Software Manager
PRSR PRS Result
PRSU Post Release Software Update
PRSU Post-Release Software Unit
PRT Payphone Recognition Tone
PRT PRinT
PRT Print File
PRT Printer
PRT Problem Resolution Team
PRTCL Protocol
PRTM Printing Response Time Monitor
PRTNM Pretranslator Name
PRTSC PRinT Screen (key)
PRU Primary Recording Unit
PRV Pre-Release Verification
PRV Privacy
PRVPUB Private to Public
PRW Paired Wire
PRZ Polarized Return-to-Zero
Ps location Probability
PS Packet Service
PS Packet Size
PS Packet Switch
PS Packet Switching
PS Packet-Switched
PS Paging System
PS Paging Systems (former ETSI TC)
ps Parameter Separator
PS Party Set
PS Passed Screening
PS Path Selection
PS Pay Station
PS Pen Style
PS Permanent Signal
PS Personal (radio) Station
PS Phase Shift
PS Physical Shelf
ps picosecond
PS PostScript
PS Power Sink
PS Power Source
PS Power Splitter
PS Power Supply
PS Presentation Services
PS Probability of Success
PS Processor Sharing
PS Processor Status
PS Product Specification
PS Program Store
PS Program Stream
PS Protection Switching
PS P-Side
Ps Public switched telephone network
Ps sending Power level
PS/2 Personal System/2
PS1 Power Source 1
PS1 Power Status Bit 1
PS1 Power Supply 1
PS2 Power Source 2
PS2 Power Status Bit 2
PS2 Power Supply 2
PS3 Power Source 3
PS3 Power Supply 3
PSA Partial Stand-Alone
PSA Path Selection Algorithm
PSA Power Serving Area
PSA Processor Save Area
PSA Product Service Assurance
PSA Product Specification Agreement
PSA Programmable Services Architecture
PSA Protocol-Specific Annex
PSA Provisioned Service Actions
PSA Proxy Signaling Agent
PSA Python Software Activity
P-SAE PSE Service Alteration Element
PSAP Physical Service Access Point
PSAP Presentation Service Access Point
PSAP Public Safety Answering Point
PSAR Programmable Starting Address Register
PSC PCS Switching Center
PSC Permanent Signaling Connection
PSC Persistent Signaling Channel
PSC Personal SuperComputer
PSC Physical Signaling Channel
PSC Picture Start Code
PSC Preset Conference
PSC Programming Support Centre
PSC Protection Switching Controller
PSC Protection Switching Count
PSC Public Service Commission
PSCAB Packet Services Compatibility Advisory Board (BOC)
PSCAB Packet Services Compatibility Users Group
PSCCP Packet Signaling Connection Control Part
PSCS Personal Space Communication Service
PSD Passive Service Directory
PSD Permanent Signal Detection
PSD Platform Schedule Dependency
PSD Platform-Specific Driver
PSD Power Spectral Density
PSD Programmable Sharing Device
PSD Protection Switching Duration
PSDC Public Switched Digital Capability
PSDDS Pilot Switched Digital Data Service
PSDDS Public Switched Digital Data Service
PSDI PIN Service Denial Indicator
PSDI PIN Service Denial Indicator Identifier
PSDN Packet Switched Data Network
PSDN Packet Switched Digital Network
PSDN Public Switched Data Network
PSDN Public Switched Digital Network
PSDR Periodic State Dependent Routing
PSDS Packet Switched Data Service
PSDS Public Switched Data Service
PSDS Public Switched Digital Service
PSDTS Packet Switched Data Transmission Service
PSDU Presenation Service Data Unit (OSI-PL)
PSE Packet Switching Exchange
PSE Passive Service Element
PSE Personal Security Environment
PSE Protection Switch Exercise
PSE Proxy Search Engine
PSE Published Software Environment
PSET Proprietary Business Set
Pset Proprietary Set
PSETF Preemptive Shortest Executive Time First
PSF Point Spread Function (Imaging)
PSF Power Separating Filter
PSF Print Services Facility
PSF Product Specification File
PSG Professional Services Group
PSH Property Sheet Header
PSH Push flag
PSI Performance Systems International
PSI Personal Subscription Identity
PSI Pitch Synchronous Innovation
psi Pounds Per Square Inch
PSI Precision Systems Inc.
PSI Product Support Information
PSI Product/Service Information
PSI Program-Specific Information
PSI Protection Switch Inhibited
PSI-CELP Pitch Synchronous Innovation-CELP
PSID Private System Identifier
PSIDE Peripheral Side
P-SIDE Peripheral Side
PSIG Permanent Signal
PSK Phase-Shift Keying
PSKMP Photuris Session Key Management Protocol
PSL Peripheral Speech Link
PSL Phantom Service Link
PSL PM-to-SLC
PSL Power Sum Loss
PSL Program Skeleton Language
PSL Protocol Specification Language
PSLK Peripheral Side Link
PSLT Periodic Signaling Link Tests
PSM Persistent Stored Modules
PSM Position Switching Module
PSM Property Sheet Message
PSM Protocol State Machine
PSM Provision of Stored Messages
PSM Pulse Step Modulation
PSMS PCS Service Management System
PSN Packet Switched Network
PSN Packet Switched Node
pSN Packet Switching Network
PSN Packet Switching Node
PSN Portable equipment Serial Number
PSN Power Switching Network
PSN Private Subscriber Network
PSN Programmable Services Node
PSN Property Sheet Notification
PSN Public Switched Network
P-SNE PSE Service Notification Element
PSNR Peak Signal-to-Noise Ratio
PSO Partial Store Ordering
PSO Professional Services Organization (Hewlett-Packard)
PSOF Pending Service Order File
PSOLA Pitch Synchronous OverLap and Add
PSOP Plastic Small Outline Package
pSOS Integrated Systems Inc. pSOSystem
PSP Packet Subscriber Profile
PSP Parameter Stack Pointer
PSP Payphone Service Provider
PSP PCS Service Provider
PSP Personal Software Products
PSP Physical Service Port
PSP Position-Synchronized Pulse Generator
PSP PPSN Subscriber Profile
PSP Product System Packaging
PSP Program Segment Prefix
PSP Programmable Signal Processor
PSPD Permanent Signal/Partial Dial
PSPDN Packet Switched Public Data Network
PSPDN Public Switched Packet Data Network
PSPROT Protected Program Store
PSPTF Preemptive Shortest Processing Time First
PSQX75 Packet Sequencing for X.75
PSR Passive Service Reference
PSR Powersoft Report File
PSR Previous Slot Received (BISDN)
PSR Priority Sharing with Restrictions
PSR Processor Status Register
PSRG Parallel Shift Register Generator
PSRR Power Supply Rejection Ratio
PSS Packet Switched Stream (X.25)
PSS Packet Switching System
PSS Performance Support System
PSS Product and System Specifications
PSS Product Support Services
PSS Public Safety Systems
PSS Pulse Signalling System
PSS1 Private Signalling System number one
PSSP Parallel System Support Programs
PST MDII: Permanent Signal Timeout
PST Pacific Standard Time
PST Permanent Signal Tone
PST Perprocess Segment Table
PST Pre-Structured Technology
PST Primary State
PST Protocol State Table
PSTC Public Switched Telephone Circuits
PSTN Public Switched Telephone Network
PSTO Permanent Signal Timeout
PSTQ Primary State Qualifier
PSTS Parallel Serial Time Switch
PSTS Profile Specific Test Specification
PSTV Protocol Specification, Testing and Verification
PSU Packet Switch Unit
PSU Packet Switching Unit
PSU Power Supply Unit
PSU Product/Service Update
PSUP Per Session User Profile
PSVC Point-to-Point Signaling Virtual Channel
PSVCI Point-to-Point Signaling Virtual Channel Identifier
PSW Peripheral Software
PSW Processor Status Word
PSW Program Status Word
PSWR Power Standing Wave Ratio
PT ISO country code for Portugese Republic (Portugal)
PT Packet Trunk
PT Paging Terminal
PT Paper Tape
PT Parallel Transmission
PT Part Time
PT Passthru
PT Pay Tone
PT Payload Type
PT Performance Technologies
PT Performance Telecom
PT Personal Telecommunications (service)
PT Physical Tuple
pt Point
PT Portable Radio Termination
PT Precise Tone
PT Private Trunking
PT Product Test
PT Product Testing
PT Program Test
PT Project Team
PT Protocol Tester
PT Pulse Transformer
PTA Posts and Telecommunications Administration
PTA Previous Transfer Address
PTA Product Test Acceptance
PTA Product Test Accepted
PTA Provincial Telecommunications Administration
PTAB Planning Table
PTAC Postal and Telecommunications Appliances Corporation
PTAE Pass Through Application Entity
PTAG PCS Technology Advocacy Group
PTAT Private Transatlantic Telephone
PTB Physikalisch-Technische Bundesamstalt (D)
PTBA Page Table Base Address
PTC Pacific Telecommunications Council
PTC Parallel Test Component
PTC Parametric Technology Corp.
PTC Permanent Technical Committee
PTC Positive-Temperature-Coefficient (resistor)
PTC Product Test Certification
PTC Product Test Complete
PTCH Packet Traffic Channel
PTCO Project Team Co-Ordinator assistant (ETSI)
PTD Personal Training Day
PTD Product Test Developed
PTE Packet Transport Equipment
PTE Page Table Entry
PTE Partitioned Table Editor
PTE Path Terminating Equipment
PTE Product Test Exit
PTE Protocol Testing Environment
P-Team Prototyping Team
PTEG Page Table Entry Group
PTF Permanent Text File
PTF Print Time Formatting
PTF Problem Trouble Fix
PTF Product Test Finish
PTF Programmable Transversal Filter
PTFE Poly-Tetra-Fluoro-Ethylene (Cable Insulator)
PTG Precise Tone Generator
PTGT Privilege Ticket Granting Ticket
PTI Packet Type Identifier
PTI Payload Type Identifier
PTI Payload Type Indicator
PTI Performance Technologies Inc.
PTI Personal Telecommunication Identity
PTL Physical Transport Layer (SNA)
PTL Push To Listen button
PTLU Pre-Transmission Line-Up
PTLXAU Public Telex Access Unit
PTM Packaged Trunk Module
PTM Packet Transfer Mode
PTM Packet Transport Mode
PTM Point-To-Multipoint
PTM Portable Traffic Monitor
PTM Programmable Timer Module
PTM Project Team Manager (ETSI)
PTM Pulse Time Modulation
PTM-G Point-To-Multipoint Group Call
PTM-M Point-To-Multipoint Multicast
PTMPT Point To Multipoint
Pt-Mpt Point-to-Multipoint
PTM-SC PTM Service Center
PTMT Project Team Management Team (ETSI)
PTN Personal Telecommunication Number
PTN Personal Telephone Number
PTN Plant Test Number
PTN Private Telecommunications Network
PTN Public Telephone Network
PTNX Private Telecommunications Network Exchange
PTO Public Telecommunications Operator
PTP Paper Tape Punch
PTP Peak To Peak
PTP Point-To-Point
PTP Precise Tone Plan
PTP Private Topology Partition
PTP Product Test Plan
PTP Product Test Process
Pt-Pt Point-to-Point
PTQ Per-Terminal Queue
PTR Paper Tape Reader
PTR Philips Telecommunication Review (periodical)
PTR Pointer
PTR Poor Transmission
PTR Printer
PTR Professional Technical Reference
PTRST Port Restore
PTS Paper Tape System
PTS Pay Terminals and Systems
PTS Personal Telecommunications Service
PTS Per-Trunk Signaling
PTS Portable Test Set
PTS Precise Tone Supply
PTS Presentation Time Stamp
PTS Probabalistic Transition System
PTS Proceed To Select
PTS Proceeed to Send
PTS Product Test Start
PTS Product Test Strategy
PTS Product Tracking System
PTS Profile Test Specification
PTS Protocol Test System
PTS Public Telecommunications Service
PTS Public Telephone Service
PTS Public Telephone System
PTSCS PTS Compliance Statement
PTSE PNNI Topology State Element
PTSE PNNI Topology Status Element
PTSP PNNI Topology State Packet
PTS-S Profile Test Specification Summary
PTST Product Test
PTST Product Test Strategy Team
PTT Plesiochronous Trail Terminations
PTT Postal, Telegraph, and Telephone
PTT Postes, Télégraphes et Téléphones
PTT Posts, Telecommunications et Telediffusion
PTT Posts, Telegraphs and Telephones
PTT Posts, Telegraphs and Telephones public operating company
PTT Push to Talk
PTT Push To Talk button
PTTC Paper Tape and Transmission Code
PTTI Precise Time and Time Interval
PT-VSI Performance Technologies VMEbus Slave Interface
P-TWC PCS Three Way Calling
PTX Performance Toolbox
PTY Party Line
PTY Party Line Ringing Code/Member Identifier
pty Pseudoterminal
PU Physical Unit
PU Plug-Up
PU Presentation Unit
PU Programme Unit
PU Protocol Unit
PU1 Private Use 1
PU2 Private Use 2
PUB Public
PUB Publication
PUB Technical Publication
PUBNET Public Network
PUBPRV Public to Private
PUC Path User Channel
PUC Public Utilities Commission
PUC Public Utility Commission
PUC PUnch Control
PUCI PIN Usage Category Indicator
PUCP Physical Unit Control Point (SNA)
PUCT Price per Unit Currency Table
PUF PRISM User Forum
PUGI Primary User Group Identity
PUH Physical Unit Handler
PUI Personal User Identity
PUK Personal Unblocking Key
PUK PIN Unblocking Key
PUM Personal User Mobility
PUM Positioning Unit Mode
PUMA Product Upgrade Manager
PUN Physical Unit Number
PUN Portable User Number
PUNA Public Network Access Billing Records
PUP PARC Universal Packet
PUP PARC Universal Packet Protocol
PUP Physical User Port
PUPS Point-of-Use Power Supply
PUT Parallel Upper Tester
PUT Portable User Type
PUT Programmable Unjunction Transistor
PV Parameter Value
PV Parameter Variation
PV Physical Volume
PV Private Number
PV Procedure Variable (Procvar)
PV Product Validation
PV Product Verification
PV Protocol Version
PVA Photo Voltaic AC-Relay
PVAL PRSM Validation
PVBR Peak-Allocated VBR
PVC Permanent Virtual Call
PVC Permanent Virtual Channel
PVC Permanent Virtual Circuit
PVC Permanent Virtual Connection
PVC Poly-Vinyle Cloride
PVC Protocol Variant Control
PVC Protocol Version Control
PVCC Permanent Virtual Channel Connection
PVCI Permanent Virtual Channel Identifier
PVCRI Permanent Virtual Circuit Recording Interval
PVCS Intersolv software configuration management product
PVD Physical Vapor Deposition
PVD Point of Video Delivery
PVDF piezoelectric PolyVinyliDene Fluoride (Acoustic Sensors)
PVDF PolyVinyliDene Fluorethylene (pyrosensor, IR-absorber)
PVDN Private Virtual Data Network
PVE Product Validation End
PVE Protocol Version Error
PVG Passport Voice Gateway
PVM Parallel Virtual Machine
PVM Passport Voice Manager
PVM Passthrough Virtual Machine (protocol)
PVM Position/Velocity-sense Module
PVN Private Virtual Network
PVN Private Virtual Networking
PVP Packet Video Protocol
PVP Permanent Virtual Path
PVP Programmable Video Processor
PVPBACC Private-to-Public Access Code
PVPC Permanent Virtual Path Connection
PVQ Pyramid Vector Quantization
PVR Processor Version Register
PVRA Physical Volume Reserved Area
PVS PowerPC Visual Simulator
PVS Product Validation Start
PVT Page View Terminal
PVT Private
PVTFAC Private Facilities Access
PVTNET Private Network Access Code
PW ISO country code for Palau
PW Password
PWB Printed Wiring Board
PWB Programmer's Workbench
PWBA Printed Wiring Board Assembly
PWD Password
PWF Preference Weighting Factor
PWFG Primary Waveform Generator
PWI Physical Work Item
PWI PoWer Indication
PWI Public Windows Interface
PWL Password List
PWL Password List file
PWM Pulse-Width Modulated
PWM Pulse-Width Modulation
PWP Physical Work Processor
PWP Primary-Writer Protocol
PWPD Process With Private Data
PWR Power
PWS Peer Web Services
PWT Page-Level Writes Transparent
PWT Page-Level Write-Through
pWT Personal Wireless Telecommunication
PWT Personal Wireless Telecommunications
PWT Personal Wireless Telephony
PWT-E Personal Wireless Telecommunications-Enhanced
PX Prefix Code
PX Private Exchange
PX Pulse transformer
PX peak power (watts, dB)
PXE Preboot Execution
PXL Product XPM Lineup
PXLA Pretranslation
PXML Private Exchange Master List
PXO Packaged crystal Oscillator
PY ISO country code for Republic of Paraguay
PY Person-Year
PY mean power (watts, dB)
PZ carrier power (watts, dB)
PZT Pb(lead)-Zirconate-Titanate (RAM) (Ferroelectronic RAM)
Q Q reference point Q Quadrature Q Quarter Q Quotation (HTML tag) Q Selectivity Q Transistor Q&A Questions and Answers Q&R Quality and Reliability QA ISO country code for State of Qatar QA Q (Interface)- Adapter QA Q-Adapter QA Q-Interface Adapter QA Quality Acceptance QA Quality Assurance QA Queue-Arbitrated QA Queued Arbitrated QA Quick Acting QAC Quality Assurance Cycle QAD Quality Assurance Directorate QADM Quadrature Audio/Data Modulation QAF Q Adaptor Functional block QAF Q-Adapter Function QAF Quality Audit Facility QAM Quadrature Amplitude Modulation QAM-SC Quadrature Amplitude Modulated- Suppressed Carrier QAN Q3 Interface on the Access Network QAR Quality Assurance Review QASK Quadrature Amplitude Shift Keying QBB Query Bb Channels QBE Quality Basic Education QBE Query By Example QBERT Query Bit Error Rate Testers QBIC Query By Image Content Q-bit Qualifier bit QBS Query Busy Station QC Qualcomm QC Quality Circle QC Quality Control QC Quantum Cascade QC Quantum Coprocessor QC Quartz Crystal QC Queue Controller QC Queued Channel QCC Quality Control Circle QCDMA Qualcomm CDMA QCIF Quarter CIF QCIF Quarter Common Image Format QCIF Quarter Common Intermediate Format QCK Quick Conference Key QCM Query Call Memory QCOUNTS Query Counts QCP Queue Control Program QCP Quick Connect Panel QCPUGNO Query CPU Group Numbers QCS Quadruple Current Switch QCT Quantitative Computerised Tomography (Medical) QCUST Query Customer Information QD Quad Density QD Queuing Delay QDC Quadrature Decoder Chip QDCH Query D-Channel Handler QDI Quality Document, Process, and Impact Report Information QDN Query Directory Number QDNA Query Directory Number Address QDNSU Query Software Unassigned Directory Numbers QDNU Query Directory Numbers Software Unassigned QDNWRK Query Working Directory Number QDPSK Quaternary Differential Phase Shift Keying QDRS Quantum Data and Routing System QDSX Quadruple DSX QDU Quantization Distortion Unit QDU Quantizing Distortion Unit QE QMS Element QEF Quasi-Error-Free QELIB Q+E Database Library 2 QEPC Quadruple Exchange Power Controller (ISDN) QFA Quick File Access QFADS QMS Force Administration Data System QFC Quantum Flow Control QFD Quality Function Deployment QFL Queue FiLe QFLIC Quad Fiber Link Interface Chip QFLIC Quad Fiber Link Interface Controller QFM Quantized Frequency Modulation QFP Quad Flap Pack QFP Quad Flat Package (Square IC Package) QFSK Quadrature Frequency Shift Keying QGP Quad Gateway Processor QGRP Query Group QH Query Handler QHA Query Hardware Assigned LEN QHASU Query Hardware Assigned Software Unassigned LEN QHU Query Hardware Unassigned LEN QI Quality Improvement QI Quality Indicator QIC Quality Improvement Council QIC Quality Information Center QIC Quarter Inch Compatibility QIC Quarter-Inch Cartridge QIC Quarter-Inch Cassette QID Queue Identifier QIF Quicken Import File QIL Quadruple-In-Line (IC Package) QIT Quality Improvement Team QIT Query ISDN Terminal QKD Quantum Key Distribution QKS Quasar Knowledge Systems QL Queue Length QLAMP1 Queue Call-Waiting Lamp 1 QLAMP2 Queue Call-Waiting Lamp 2 QLAMP3 Queue Call-Waiting Lamp 3 QLC Quad Line Card QLC Quad Link Controller QLE Q3 Interface on the Local Exchange QLEN Query Line Equipment Number QLENWRK Query Working LEN QLI Quad Link Interface QLI Query Language Interpreter QLLC Qualified LLC (SNA) QLLC Qualified Logical Link Control QLOAD Query Load QLOOP Query ISDN Loop QLPS Quad Link Packet Switch QLT Query Logical Terminal QM Quality Manager (ETSI) QM Quality Manual QM QuickMail QM Quiet Mode QMADN Query Multiple Appearance Directory Number QMAMSK Quadrature Multi-Amplitude Minimum Shift Keying QMF Quadrature Mirror Filter QMF Query Management Facility (IBM) QMI Quality Management Institute QMIP QualComm Managewment Information Protocol QMP Quality Measurement Plan QMS Quality Management System QMS Queue Management System QMS CAM Queue Management System Call and Agent Manager QMS CASE Queue Management System Customer Assistance Service Enhancements QMS LC Quality Management System Local Co-ordinator (ETSI) QMSCASE Queue Management System Customer Assistance Service Enhancements QMSK Quadrature Minimum Shift Keying QMTI Quadrature Moving Target Indicator (radar) QNaN Quiet Not-a-Number QNCOS Query Network Class of Service QNVW Queensview QO Query Originator QoR Query on Release QOS Quality of Service QoS Quality of Service QOSMIC QOS Verification Methodology and Tools for Integrated Communications QOSP Quality of Service Parameter QP Quadratic Program QP Query Processor QPA Quality Program Analysis QPC Quad Port Card QPDM Quadruple Pixel-Dataflow Manager (AMD Inc.) QPH QLPS Protocol Handler QPHF Query Packet Handler Facility QPL Qualified Products Listing (US-Military) QPL Queueing Priority Level QPM Quad-Port Module QPM Quantized Pulse Modulation QPR Quadrature Partial Response QPRIO Query PRIO QPRS Quadrature Partial-Response System QPS Quality Program Specification QPS Queries Per Second QPSK Quadrature (Quaternary) Phase Shift Keying (4-PSK) QPSX Queued Packet and Synchronous Circuit Exchange QPSX Queued Packet Synchoronous Exchange QPUG Quality Process Users Group QR Quality Record QR Quasi-Random QRA Quality Reliability and Assurance QRP QOS Reference Point QRS Quasi-Random Signal QRSF Quasi-Random Signal, Framed QRSS Quasi-Random Signal Source QRSU Quasi-Random Signal, Unframed QRY Query QS Queue Size QSA Quality System Analysis QSA Quality System Assurance QSAFA Quasi-Static Autonomous Frequency Assignment QSAM Quadrature Sideband Amplitude Modulation QSAM Queued Sequential Access Method QSCONN Query Special Connections QSCUGNO Query SCU Group Numbers QSD Quality System Document QSDA Quality System Documentation Assistant (ETSI) QSE Quality Software Engineering QSIG Q Interface Signaling QSIG Q Interface SignallinG protocol (ECMA standard) QSIG-GF Q Interface Signaling-Generic Functions QSL Queue Status Lamp QSM Query Set Manager QSPI Quality System Process Improvement QSS Quality Systems and Software Ltd. QSTN Question QT Quality Technology QT Queuing Time QTADS QMS Traffic Administration Data System QTAM Queued Telecommunications Access Method QTD Query Time and Date QTFW QuickTime for Windows QTM QuickTime QTOPSPOS Query Table TOPSPOS QUAD Typographic Quadding QUAM Quantized Amplitude Modulation quat Quaternary Symbol QUE Call Queuing QUE Queuing QUEST Quality, Engineering, Software, and Technology QUICC Quad Integrated Communications Controller QUIL QUad-In-Line (Package) QUIP Quad In-Line Package QUNI Query Useful Node Information QVC Quality, Value and Convenience QW Quad Word QW Quadword QW Quantum Well QWA Quarter Wave Antenna QW-DFB Quantum Well Distributed Feedback QWL Quantum Well Laser QWP Query With Permission QWUCR Query Wake-Up Call Requests
R Ramp time R Rapporteurs Meeting (ETSI) R Read R Ready R Receive (circuit) R Received R Recommendation R Red R Referenced R Register R Release R Reliability R Replied R Request R Requirement R Reservation R Resistance R Resistor R Resource R Response R Revision of existing document R Ring r Roman R Round R Router R&D Research and Development R&E Research and Education R&I Review and Inspection R&M Reliability and Maintenance R&O Report and Order R&Q Reliability and Quality R&Q Routing and Queuing R&R Request and Reply R&R Reward and Recognition R/DAT Rotary Digital Audio Tape R/M Register/Memory R/N Request/Notification R/O Read-Only R/O Responsible Organization R/T Receive/Transmit R/T Register Translator R/W Read/Write R2 Binary Raster Operation R2 signalling system R2 R4 Release 4 R5 Release 5 R50 Rad-50 R6 Release 6 RA Radio Altimeter RA Radio Astronomy RA Radio Resource Allocator RA Radiocommunication Assembly (ITU) RA Radiocommunications Agency (UK) RA Random Access RA RAndom mode request information field RA Rate Adapter RA Rate Adaption RA Recognition Agreement RA Recognition Arrangement RA Registered Area (TETRA) RA Registration Area RA Remote Access RA Request Access RA Request/Acknowledge RA Requirements Analysis RA Requirements Analyzed RA Resource Agent RA Resource Aggregate RA Resynchronize Acknowledgement RA Return Alarm RA Risk Analysis RA Roaming Area RA Routing Address RA Routing Arbiter RA Routing Area RA Rural Area RA1 Reanswer No. 1 signal RA2 Reanswer No. 2 signal RA3 Reanswer No. 3 signal RAB RAID Advisory Board RAB Random Access Burst RAB Registrar Accreditation Board RAC Remote Access Concentrator RAC Resources Available Confirm RAC Root Access Conditions RAC Routing Access Code RAC Routing and Access Controller RACE R&D in Advanced Communications technologies in Europe RACE Random Access Computer Equipment RACE Rapid Automated Connections Environment RACE Regional Automatic Circuit Exchange RACE Research and Development in Advanced Communication Technologies in Europe RACE Research in Advanced Communication in Europe RACE Research in Advanced Communications in Europe RACE Research into Advanced Communications in Europe RACE Research on Advanced Communication Systems in Europe RACF Radio Access Control Function RACF Remote Access to Call Forwarding RACF Remote Activation Call Forwarding RACF Resource Access Control Facility (IBM) RACFCD Remote Access Call Forwarding Code RACH Random Access Channel RACON RAdar beaCON RACOS Raised Cosine RACS Remote Access Computing System RACS Road/Automobile Communication System rad Radians RAD Rapid Access Disk RAD Rapid Application Development RAD Redirection-Address Display RAD Remote Access Device RAD Remote Antenna Driver RADAR Radio Detection And Ranging RADIUS Remote Authentication Dial-In User Service RadJa Rapid Application Development with Java RADR Receiver Attachment Delay Recorder RADSL Rate Adaptive Digital Subscriber Line RADSL Rate Adaptive Digital Subscriber Loop RAE Real-Time Analysis Engine RAF Rainbow Action Forum RAF Recorded Announcement Frame RAF Risk Assessment Form RAG Radiocommunications Advisory Group RAG Ring Again RAI Remote Alarm Indication RAI Resource Availability Index RAI Resources Available Indicate RAID Redundant Array of Inexpensive Disks RAINBOW Radio Independent Broadband on Wireless RAINV Resource Aggregate Inventory Table RAL Radio Access Layer RAL Raleigh RAL Resource Aggregate Locator RAL Resource Allocation RALA Registered Automatic Line Adapter RALU Register and Arithmetic and Logic Unit RAM Random Access Memory RAM Random-Access Machine RAM Remote Access Management RAM Reset Acknowledgement Message RAMA Resource Auction Multiple Access RAMAC Random Access Method of Accounting and Control RAMDAC RAM-based Digital to Analog Converter RAMDAC Random Access Memory with Digital to Analogue Converter RAMP RAM Alternate Messaging Protocol RAMP Reliable Adaptive Multicast Protocol RAMP Remote Access Maintenance Position RAMP Remote Access Maintenance Protocol RAMSH Reliability, Availability, Maintainability, Safety and Human Factors RAN Re-Answer message RAN Recorded Announcement RAN Regional Area Network RAN Remote Access Node RAN Residential Access Network RAN Room Area Network RAND Random Number RAND Random Number used in generating CKEY RANN Recorded Announcement RANTH Recorded Announcement Threshold RAO Raleigh-Area Operations RAO Record Digits as Outpulsed RAO Regional Accounting Office RAO Revenue Accounting Office RAP Radio Access Port RAP Rapid Application Prototyping RAP Recorded Announcement Processor RAP Recording-Announcement Processor RAP Reliability Assessment Plan RAP Route Access Protocol RAQ Recently Asked Questions RAR Rearrangement RAR Request for ACT Relationship RAR Resource Access Restriction RAR Return Address Register RARC Regional Administrative Radio Conference RARE Réseaux Associés pour le Recherche Européenne RARF Radio Administration, Regulation and Frequency management RARP Reverse Address Resolution Protocol RARP Reverse Address Resolution Protocol (TCP/IP-DoD) RAS Radio Access System RAS Radio Astronomy Service RAS Random-Access Storage RaS Range and Status RAS Registration, Admission, and Status RAS Reliablity, Availability, Serviceability RAS Remote Access Server RAS Remote Access Service(s) RAS Row Address Select RAS Row Address Strobe RASC Radio Access Service Controller RASC Radio Access System Controller RASCI Responsibility, Approval, Support, Consult and Inform RASCOM Regional African Satellite Communications Organization RASL Robust Application and Session Layer RASM Remote Abstract Service Module RASP RSC Alarm & Status Panel RASR Reliability, Availability, Serviceability, Recoverability RAST Receive and Send Terminal RAT Register Alias Table RAT Reliability Assessment Testing RAT Remote Access Telnet RAT Resource and Transport RAT Resource(s) Architecture Team RATP Reliable Asynchronous Transfer Protocol RATS Rainbow Action Tracking System RATT R1022 ATM Technology Testhead RAU Recorded Announcement Unit RAU Remote Access Unit RAU Reserved for Administrative Use RAV Remote Access Vehicle RAVE Remote Access to VCO Environment RAVE Rendering Acceleration Virtual Engine RAW Read After Writing RAX Rate Area Exception RAX Remote Access RB Redbook RB Reference Bit RB Return to Bias (recording) RB Reverse Battery RB Ringback RB Robustness RB Rollback RBA Relative Byte Address RBA Reset-Band-Acknowledgement message RBB Residential Broadband RBC Radio Bearer Control RBC Relay Bearer Control RBC Remote Bearer Channel RBCF Radio Bearer Control Function RBD Receiver Buffer Descriptor RBDS Radio Broadcasting Data System RBER Residual Bit Error Rate RBER Residual Bit Error Ratio RBF Random Block File (Manager) RBHC Regional Bell Holding Company RBI Reset-Band-Acknowledgement, All Circuits Idle signal RBID Reference Burst IDentification RBK Ring Back RBLO Remotely Blocked RbnNoR Redirection Number Restriction RBOC Regional Bell Operating Company RBP Reliable Broadcast Protocol RBP Ring Back Price RBQ Ring-Back Queuing RBR Real-time Bit Rate RBS Radio Base Station RBS Robbed-Bit Signaling R-BS Ranger Wireless Base Station RBSOA Reverse-Biased Save Operating Area (Power Semiconductors) RBT Remote Batch Terminal RBT Ringback Tone RBU Receive Baseband Unit RBV Return Beam Vidicon RBW Resolution Bandwidth RC Radio Controller RC Rate Center RC Read-Create RC Receive Common RC Recent Change RC Reception Control RC Recognition Context RC Recording Completing RC Reference Clock RC Reference Configuration RC Regional Center RC Remote Control RC Repeating Coil RC Reply Check RC Request Counter RC Requirements Captured RC Reservation Centre RC Resistance-Capacitance RC Resistor-Capacitor RC Resource Compiler RC Resource Control RC Resource Definition file RC Resource Script File RC Retransmission Counter RC Retry Counter RC Return Code RC Reverse Charging RC Revertive Call RC Ring Control RC Ringing Code RC Ringing Current RC Root Cause RC Routing Code RC Routing Controller rc Run Commands RC Runtime Customization RC&V Recent Change and Verify RC/V Recent Change and Verify RC/VP Recent Change/Verify Position RC2 Rivest Cipher #2 RC4 Rivest Cipher #4 RCA Radio Corporation of America RCA Receiver Collision Avoidance RCA Remote Controller Array RCA Reverse Charging Acceptance RCA Root Cause Analysis RCAA Root Cause Alarm Analysis RCAMA Remote Centralized Automatic Message Accounting RCAN Recorded Announcement RCAS Rapport Carrier Access Switch RCAT Release Coordination and Tracking RCAT Signaling-Route-Set-Congestion-Test Control RCB Reverse Channel Bank RCB Reverse Charging Barred RCB Ringing Control Block RCC Radio Common Carrier RCC Remote Cluster Controller RCC Remote Communication Controller RCC Requirements Change Control RCC Resource Capacity Coefficient RCC2 Remote Cluster Controller 2 RCCB Residual-Current Circuit Breaker RCCI ISDN Remote Cluster Controller RCCN Radio Common Carrier Number RCCO Offshore Remote Cluster Controller RCCR Receive Control Character Register RCCT Regression Code Coverage Tool RCD Rapid Cycle Development RCD Receiver-Carrier Detector RCD Reference Configuration Development RCD Residual Current Device RCD Resistor-Capacitor-Diode (protection circuit) RCD Reverse Coin Disposal RCD Route Control Digit RCDMA Rockwell CDMA RCE Radio Control Equipment RCE Remote Control Equipment RCE Remote Controller Equipment RCEE Resource Control Execution Environment RCEI ISDN Remote Controller Equipment RCER Remote Call Event Record RCES Remote Controlled Equaliser System RCF Radio Control Function RCF Registration Confirm RCF Registration Confirmation RCF Remote Call Forward RCF Remote Call Forwarding RCFEA Remote Call Forwarding Equal Access RCFLM Remote Call Forwarding Limit RCFN Remote Call Forwarding Number RCFW Remote Call Forwarding RCGA Remote Carrier Group Alarm RCGLI Request Calling Line Identity RCH Redundancy Check RCH Restoration Capacity Heuristic RCH Richardson RCHD Residential Call Hold RCHNL Remote Channel RCI Release Control Identifier RCI Remote Command Interpreter RCI Reverse Charging Indication RCI Root Cause Identification RCI Routing Control Indicator RCID Radio Call ID RCL Recall RCLI Remote Command Line Interface RCM Reject Connect Modify Message RCM Release Control Manager RCM Resource Configuration Manager RCMAC Recent Change Memory Administration Center RCME Remote Control and Maintenance Equipment RCMI Remote Cell-site Multiplex Interface RCMP Routing Control/Monitoring Policing RCO Receiver Cuts Out RCO Remote Central Office RCO Resource Control Object RCO2 Off-Shore RCC2 RCO2 Overseas RCC2 RCOS Routing Class of Service RCP Radio Control Point RCP Rainbow Computing Platform RCP Real-time Compute Platform RCP Regional Control Point RCP Restoration Control Point RCP Restore Cursor Position RCP Return to Control for partial Page RCP Right-hand Circular Polarization RCP Route Control Point RCP Route Set Test Cluster Prohibited message RCP Signaling-Route-Set-Test Cluster-Prohibited signal RCR Radio Center for Research RCR Radio Communications Report RCR Research and Development Center for Radio Systems RCR Role-Collaborator-Responsibility RCR Route Set Test Cluster Restricted message RCR Signaling-Route-Set-Test Cluster-Restricted signal R-C-R Role-Collaborator-Responsibility RCS Reaction Control Subsystem RCS Recall Services RCS Relay Control System RCS Remote Carrier SLC-96 RCS Remote CAT Scan RCS Remote Concentrator SLC-96 RCS Remote Concentrator Subscriber RCS Remote Connection Service RCS Remote Control Switching RCS Reserved Channel Scheme RCS Revision Control System RCSA Radio Carrier Serving Area RCSC Regional Customer Support Center RCSDRV Relay Control System Driver RCSENT Reverse Charging Sent RCT Remote Carrier Terminal RCT Remote Concentrator Terminal RCT Remote Control Terminal RCT Resonant Charge Transfer (Power Supplies) RCT Resource Cancellation Time RCT Resource Template file RCT Route Set Congestion Test message RCT Signaling-Route-Set-Congestion-Test signal RCTL Resistor-Capacitor-Transistor Logic RCTM Rate Conversion Traffic Monitor RCU Rack Controller Unit RCU Radio Channel Unit RCU Radio Control Unit RCU Remote Carrier Urban RCU Remote Concentrator Unit RCU Remote Concentrator, Urban RCU Remote Control Unit RCV Receive RCV Recent Change and Verify RCV Resistance/Capacitance/Voltage RCVD Received Digits Billing RCVR Receiver RCVRDGT Receiver-Digitone RCVS Recent Change and Verification Subsystem RCW Read/Compute/Write RCX Remote CI Command Execution RD Receive Data RD Received Data RD Recursive Design RD Reference Document RD Remote Diagnosis RD Request Disconnect RD Request for Disconnect (HDLC) RD Resistance Design RD Ring Detect RD Ringdown RD Root Directory RD Route Descriptor RD Routing Domain RDA Remote Data Access RDA Remote Database Access (protocol) RDACW RDAS Distinctive Alerting/Call Waiting RDAS Residence Distinctive Alerting Service RDAS Residential Distinctive Alerting Service RDAT Receive Data RDB Relational Database RDBL Relational DataBase Language RDBMS Relational Database Management System RDC Redirect Confirm RDC Remote Data Concentrator RDC Remote Device Controller RDC Routing Determination Check RDC Routing Domain Confederation(s) RDCLP Response Document Capability List Positive RDD Replace Dialed Digits RDD Replaceable Database Driver RDD Responsibility Driven Design RDE Redirect Expiry RDEP Response Document End Positive RDER Resource Data Entry Rules RDF Radio Direction Finder RDF Rate Decrease Factor RDF Redirect Flush RDFF RDF (Rate Decrease Factor) Factor RDG Reset Dialing RdgNo Redirecting Number RDI Remote Defect Indication RDI Remote Defect Indicator RDI Restricted Digital Information RDI Route Digit Indicator RDLD Red Lined RDLI Remote Digital Line Interface RDLM Remote Digital Line Module RDM Raw Data Mode RDM Reliably Delivered Message RDN Redirection Number RDN Relative Distinguishing Name RDN Remote Directory Number RdnAR Redirection Number Restriction RDND Roamer Do Not Disturb Rdni Redirection Information RdnNo Redirection Number RDO Relational Database Operator RDO Result Data Object RDOC Remote Dynamic Overload Control RDP Reliable Data Protocol RDP Reliable Datagram Protocol RDP Route Discovery Protocol RDQ Redirect Query RDR ReaDeR RDR Redirect Request RDR Redirection Reason RDR Regional Dynamic Routing RDR Remote Dump and Restore RDRAM Rambus DRAM RDS Radio Data System RDS Radio Diagnostic Software RDS Remote Data Services (IBM) rDS Remote Digital Section RDS Remote Download Site RDS Running Digital Sum RDSC Rainbow Distributed Software Communications RDSS Radiodetermination Satellite Service RDT Radio Deployment Tool RDT Rearm Dead-Time (Digital Storage Scopes) RDT Recall Dial Tone RDT Remote Digital Terminal RDTD Restricted Differential Time Delay RDTL Recall Dial Tone Launcher RDTM Recall Dial Tone Manager RDTP Recall Dial Tone Proxy RDU Remote Display Unit RDW Record Descriptor Word RDY Ready RE ISO country code for Reunion RE picture Response Equipment (Video Terminal) RE Radio Exchange RE Receiving Entity RE Record End RE Recovery-Enabled RE Reference Equivalent RE Regular Expression RE Remote Electronic(s) RE Requirements Engineer RE Requirements Estimated RE Research or Education RE Reset Event RE Return Error RE364 Restrict 64 Kbps Calls from Trunk Group Type 3 RE3H11 Restrict 1536 Kbps Calls from Trunk Group Type 3 RE464 Restrict 64 Kbps Calls from Trunk Group Type 4 RE4H10 Restrict 1472 Kbps Calls from Trunk Group Type 4 RE4H11 Restrict 1536 Kbps Calls from Trunk Group Type 4 REA Repeat Attempt message REA Rural Electrification Administration READ Real-time Electronic Access and Display (Networks) READ Relative Element Address Designate READY Rapid Engineering and Delivery ReBOC Regional Broadband Operations Center rec Newsgroups on recreation REC Receiver REC Recommendation REC Record(er) REC Recorder macro file REC RECovery REC Regional Electricity Company REC REquest Confirmation (packet) RECC Reverse Control Channel RECL Review of the Electrical Communications Laboratories (periodical) RECV Receive RED Random Early Detection RED Random Early Discard RED Redirection Information REF Reference ReFP Reference Fixed Part REG Range Extender with Gain reg Regenerator REG Register REG Register Message REG Registry File REG Regular Intercept REGEN Regenerator REGR Regression REI Remote Error Indication REI REset Indication REJ Reject(ion) REL Release message REL Released REL COM Release Complete message REL RB Release message RELGEN Release Note Generator RELIC Recall Last Incoming Call RELP Residual-Excited Linear Predictive Coding REM Indicates Number of Octets in Last Code Word REM Raster Elektronen Mikroskop REM Remark REM Remote End REM Remove REM Resource Management REM Resource Manager REM Ring Error Monitor REN Remote ENable (IEEE-488 Bus Signal) REN Ringer Equivalent Number REORD Reorder Tone REP Radio End Point REP Repeat Character or Control REP Repeater REPAIR Runtime Environment Performance Improvement REPL Report Log RePP Reference Portable Part REPROM Reprogrammable PROM REPT Report REQ Request REQ Required RER Residual Error Rate RER Residual Error Ratio RERN Reverse Explicit Route Number RES Binary Resource File RES Compiled Resource RES Compiled Resource file RES Radio Equipment and Systems (ETSI TC) RES Remote Entry System RES Remote Execution Server RES Reserved RES Reset request (packet) RES Resident Res Residential RES Residential Enhanced Services RES Resource Database RES Response RES Restore RES Restore service RES Restricted RES Restricted Idle RES Resume message RES Signed Response RES 6 Radio Equipment and Systems, Sub-technical Committee 6 RES1 a RESponse calculated by a PT RES2 a RESponse calculated by a FT RESB Residential Enhanced Services Base RESET RESETting RESGRP Restore service for a group of lines REST Restart message REST ACK Restart Acknowledge message REt Resolution Enhancement Technology RET Retiree RET Retrieve message RET ACK Retrieve Acknowledge message RET REJ Retrieve Reject message RETD Requested End-to-End Transit Delay RETMA Radio, Electronic and Television Manufacturers Association RETPD Retention Period REU Rainbow Equipment Unit REV Reversal REV Reverse Charging REV Revertive REV Revision REV(S) Reverse Charging at call Setup time (supplementary service) REV(U) Unconditional Reverse Charging (supplementary service) REVC Reverse Charging REVC Reverse Voice Control Channel REView Reverse Engineering View REVXLVER Reverse Translation Verification REW Rewind REX Relocatable Executable REX Remote Execution Facility REX Remote Execution Service REX Routine Exercise REXEC Remote Execution Protocol REXX Restructured Extended Executor RF DDOC Section: Internal References Rf feeding Resistor RF Radio Frequency RF References/Application Checklist RF Regional Festoon RF Register File RF Resource Finder RF Resume Flag RF Ring Forward RFA Radio Frequency Amplifier RFA Recurrent Fault Analysis RFA Request for Action RFBC Radio Frequency Bypass Capacitor RFC Radio Frequency Channel RFC Radio Frequency Choke RFC Request For Capability RFC Request for Comments RFC Request for Conductorship RFCC Radio Frequency Coupling Capacitor RFCH Radio Frequency Channel RFCR Receive Function Code Register RFD Report First Digit RFD Request for Discussion RFD Rete Fonia Dati (Speech and Data Network) RFDL Receive FDL Register RFE Radio Front End RFF Raster File Format RFF Request for Feature RFF Request for Feature Form RFF Request for Functionality RFFC Radio Frequency Feed-through Capacitor RFH Remote Frame Handler RFHI Remote Frame Handler Interface RFHMA Random Frequency Hopping Multiple Access RFI Radio Frequency Interface RFI Radio Frequency Interference RFI Remote Failure Indication RFI Remote Fault Indication RFI Request for Information RFI Return From Interrupt RFI RF Immunity RFID RF Identification RFL RF Sublayer RFLE Remote Fiber Line Extension RFM Ring Forward Manual RFN Reduced Frame Number RFN Reduced TDMA Frame Number RFNM Ready for Next Message RFO Reason For Outage RFP Radio Fixed Point RFP Remote Feature Pin RFP Report Format Procedure RFP Request for Proposal RFPI Radio Fixed Part Identity RFQ Request for Quotation RFS Ready for Sending RFS Ready For Service RFS Receive Frame Synchronisation RFS Regional Frequency Supplies RFS Remote File Sharing (ATT) RFS Remote File System RFS Request for Framework Service RFS Request for Framework Support RFS Request for Schedule RFS Request for Services RFT Radio Frequency Transformer RFT Regular Full-Time RFT Remote Fiber Terminal RFT Requests for Technology RFT Revisable-Form Text RFTDCA Revisable Form Text DCA (SNADS/DIA) RFT-DCA Revisable-Form Text Document Content Architecture RFTR Radio Frequency Transmit Receive RFTS Remote Fiber Testing System RFU Reserved for Future Use RFX Record Field Exchange RG Rapporteurs Group (ETSI) RG Regenerator RG Regular RG Regular Hunt RG Release Guard RG Ring Ground RG Ringing Generator RG Routing Goop RG/U Radio Government/Universal coax-cable (US MIL-C-17) RGA Reset Circuit Group Acknowledgement message RGB Red, Green, Blue RGB Red-Green-Blue (video signals) RGBA Red, Green, Blue, Alpha RGD Rainbow Generic Device RGI Raibow Generic Interface RGMI Remote Generic Maintenance Interface RGN Redirecting Number RGN Region RGP Raster Graphics Processor RGRP RDAS Group Option RGS Redirecting Subaddress RGS Route Guidance Service RGTR Regenerator RH Receive Hub RH Relative Humidity RH Request Header RH Request Header/Response Header RH Request/response header (SNA) RH Resource Header File RH Rocky Hill RHC Red Hat Commercial RHC Regional Holding Company RHC right-hand circular (polarization) RHCM Relative Humidity Control Module RHCP Right-Hand Circular Polarization RHCP Rural Health Care Provider RHD Residential Hold RHI Range-Hight Indicator (radar) RHOB Relevant Hierarchical Operational Binding RHP Right-Hand Plane RHS Right Hand Side RI Radio Identity RI Radio Infrastructure RI Rate Index RI Reference Identifier RI Reference Implementation Ri Reference Number RI Repeat Indication RI Requirements Identified RI Reset Indication RI Resource Index RI Response Identifier RI Restart Indicator RI Restriction Indicator RI Reverse Index RI Ring In (MAU) RI Ring Indicator RI Ring Interface RI Route Index RI Routing Indicator RI U.S. postal code for Rhode Island RIA Robotic Industry Association RIAA Recording Industry Association of America RIB RenderMan Interface Bytestream RIBE Reactive Ion Beam Etching RIC RACE Industrial Consortium RIC Radio Identity Code RIC Radio Interface Card RIC Realtime Interface Co-processor (IBM Inc.) RIC Remote Interface Controller RICCOM Remote Interface Controller Communication RICCOMM Radio Interface Card Communication System RIC-DS1 Radio Interface Card- DS1 Interface RICH Richardson RICMOS Radiation Insensitive Complementary Metal-Oxide Semiconductor RICOS Radio Interface Card Operating System RIC-T1 Radio Interface Card- T1 Interface RID Record Identifier RID Relative Identifier RID Remote Isolation Device RID Resource ID RID Response ID RID Routing Identifier RIDE Requirements Integrated Development Environment RIE Reactive Ion Etching RIF Rainbow Issue Forum RIF Rate Increase Factor RIF Route Information Field RIF Routing Information Field RIFF Resource Interchange File Format RIG Regional Interest Group RIG Relational Interface Generator RIL Radio Interface Layer RIL Resource Interface Layer RIM Receiver Intermodulation RIM Remote Interface and Maintenance RIM Request Initialization Mode (HDLC) RIN Relative Intensity Noise RINET Reinsurance and Insurance Network RInh Remote Inhibit RIO Reference Information Object (CCA/VTS) RIOT Random access memory Input/Output Timer RIP Radio Interface Protocol RIP Raster Image Processor RIP Remote Imaging Protocol RIP Request in Progress RIP Ring Interface Processor RIP Ring Interworking on Protection RIP Routing Information Protocol (TCP/IP-DoD) RIPE Reseaux IP Europeens RIPL Remote Initial Program Load RIPng RIP Next Generation RIPSO Revised IPSO RIPv2 RIP Version 2 RIRO Roll-In Roll-Out RIS Radio Interface Subsystem RIS Radio Investigation Service (RA-UK) RIS Radiology Information System (Siemens AG) RIS Random Interleaved Sampling RIS Recorded Information Service RIS Reference Information Store (VT) RIS Re-Inventing Information Systems RIS Reset to Initial State RIS Retransmission Identity Signal RISC Reduced Instruction Set Computer RISC Reduced Instruction Set Computing RISE Retrieval and Interchange of Standards in Europe RISLU Remote Integrated Services Line Unit RISP Regional Internet Service Provider RISU Remote Controlled System-Independent Switching Unit RIT Link Remote Inhibit Test message RIT Rate Index Table RIT Rate of Information Throughput, RIT Rate of Information Transfer RIT Raw Input Thread RIT Rochester Institute of Technology RIT Run Integrity Test RITA Reliable Internetwork Troubleshooting Agent RITS Review and Inspection Tool Set RITT Research Institute of Telecommunications and Transmission RIWS Remote Incoming Window Size RJ Rapporteurs Joint Meeting (ETSI) RJ Register Junctor RJ Registered Jack RJ Reject RJE Remote Job Entry RJS Remote Job Service RJU Residential Junction Unit RKB Ring Knowledge Base Rl load Resistance RL Rate Line RL Receive Leg RL Reflection Loss RL Register List RL Reinforced Learning RL Remote Login RL Remote Loopback RL Requirements List RL Reservation Level RL Resource Layer RL Resource Locator RL Return Loss RL Run-Length RL1 Reservation Level 1 RL2 Reservation Level 2 RLAN Radio Local Area Network RLAT Resource Layer Association Table RLB Remote Loopback RLC Radio Link Control RLC Release Complete message RLC Remote Line Controller RLC Resource Locator Class RLCE Remote Line Concentrating Equipment RLCM Remote Line Concentrating Module RLCN Remote Logical Channel Number RLD Relocation Dictionary RLE Remote Line Extension RLE réseau local d'entreprise RLE Run Length Encoded RLE Run Length Encoding RLF Reverse, Line Feed RLG MDII: Release Guard Signal Received- Nonstable Outgoing Trunk RLG Release Guard message RLG Release Guard signal RLI Remote Line Interface RLIN Research Libraries Information Network RLL Radio in the Local Loop RLL Radio Link Layer RLL Radio Local Loop RLL Radio on the Local Loop RLL Receive Loop Loss RLL Run Length Limited (Coding, Magnetic Recording) RLM Remote Line Module RLMPS Remote-to-Local Maximum Packet Size RLMS Return Loss Measuring Set RLN Remote LAN Node RLO Receiver Local Oscillator RLP Radio Link Protocol RLPF Reconstruction Low-Pass Filter RLR Receiver Loudness Rating RLRE A-RELEASE response/confirm RLRH Handset Receiving Loudness Rating RLRQ A-RELEASE request/indication RLS Call Release RLS Recursive Least Squares RLS Release RLS Release message RLS Release Utility RLS Remote Line Switch RLS Remote Logs System RLSD Receive Line Signal Detector RLSD Released Message RLSF ReLeaSe Failure RLSI Receive Line Signal Indicator RLSM Remote Line Switch Module RLST Release Timer RLT Release Link Trunk(ing) RLT Remote Line Test RLTC Remote-to-Local Throughput Class RLTP Remote Line Test Processor RLU Remote Line Unit RLWE Receive Lower Window Edge RM Rapid Messaging RM Rate Multiplier RM Record Mark RM Reference Manual RM Reference Model RM Regional Manager RM Reliable Multicast RM Remote Member RM Replication Manager RM Requirements Management RM Requirements Model RM Reservation Management RM Reset Mode RM Resolution Meeting (ETSI) RM Resource Management RM Resource Manager RM Resource Module RM Role Mapping RM/OSI Reference Model of Open Systems Interconnection RMA Random Multiple Access RMA RealMedia Architecture RMA Remote Administration module RMA Remote Management Agent RMA Request for Manual Assistance RMA Returned Merchandise Authorization RMAN Remote Load Management RMan Resource Management RMAP Remote Maintenance and Administration Position RMAP Remote Memory Administration Position RMAS Remote Memory Administration System RMATS-1 Remote Maintenance, Administration and Traffic System-1 RMB Remote Make Busy RMB Remote Manual Busy RMB Right Mouse Button RMBAM Remote Make Busy for Analog Member of EKTS RMBPT Remote Make Busy Point RMBPTAM Remote Make Busy Point for Analog Member of EKTS RMC Remote Maintenance Center RMC Resource Management Client RMCP Remote Module Control Processor RMCS Remote Monitor and Control System RMCS Resource Manager Communication System RMD RAM Mobile Data RMD Reliable Multicast Datagram RMD Required Markup Declaration RME Remote Miscellaneous Equipment RME Routing Management Entity RMESE Request Multiplex Entry Signalling Entity RMF Reliable Multicast Framework RMI Random Minimum Interference RMI Remote Maintenance Interface RMI Remote Method Invocation RMI Resource Manager Interface RMI Route Monitoring Information RMIA Resource Management Independent Access RMIB Remote Management Information Base RMIR Random Minimum Interference with Reassignment RML Resource Management Layer RMM Remote Maintenance Module RMM Resource Maintenance Manager RMN Remote Multiplexer Node RMN Remote Multiplexor Node RMO Real MO RMOA Real-time Multimedia Over ATM RMOD Requirements Modeling RModA Resource Module Agent RM-ODP Reference Model for Open Distributed Processing RMON Internet Remote Monitoring MIB RMON Remote Monitoring RMon Remote Monitoring RMOOS Rapid Messaging Out-of-Service RMOS Realtime Multitasking multiprocessor Operating System (Siemens AG) RMP Reference Model Processor RMP Release Management Process RMP Reliable Multicast Protocol RMP Remote Meter Pulsing RMP Resource Management Proxy RMP Routing Management Protocol RMP Rural Modernization Program RMR Remote Message Register, Reversal RMRP Remote Module Radio Port RMS Record Management System RMS Redundancy Management Services RMS Release Management System RMS Remote Measurement System RMS Remote Register, Signal Distribution Point RMS Resource Management System RMS RID/MID/PID System RMS Root Mean Square rms root mean square RMS Root Mean Square (value) RMS/D Remote Measurement System/Digital RMS/M Remote Measurement System/Metallic RMSC Remote Maintenance Switching Center RMS-D Remote Measurement System-Digital RMSG Rapid Messaging RMS-M Remote Measurement System-Metallic RMT Reliable Multicast Transaction RMT Remote Message Register for Toll Calls RMT Ring Management RMTA Remote Metallic Test Access RMTE ReMoTE RMTM Remote Maintenance Trunk Module RMTP Reliable Multicast Transport Protocol RMTP+ Reliable Multicast Transport Protocol Plus RMTS Remote Module Time Switch RMU Remote Maintenance Unit RMU Remote Measurement Unit RMU Remote Monitoring Unit RMUI Remote User Interface RMUI Resource Management User Interface RMV Remove RMW Read-Modify-Write RMWI Remote Message Waiting Indicator rn Read News RN Redirecting Number RN Reference Noise RN Regional Number RN Release Notes RN Re-routeing Number RN Routing Number RN Teilnehmer-Rufnummer (Subscriber Directory Number) RNA Remote Network Access RNA Ring Node Address RNAM Redirecting Name Delivery RNAMBL Redirecting Name Delivery Billing Records RNAMPN Redirecting Name Delivery with Personal Name Delivery RNC Radio Network Controller RNCC Regional Network Control Centre RNCPN Redirected Number/Calling Party Number RNCS Remote Network Communication System RND Random RND Redirecting Number Delivery RNDTYP Redirecting Number Delivery Type RNE Reseau National d'Essais (F) RNF Receiver Noise Figure RNG Redirecting Number RNG Ring RNHL Release Notes Help Line RNI Early Cut-Through for Remote Network Interworking RNI Radio Network Interface RNI Rainbow Network Interconnect RNI Raw Native Interface RNI Remote Network Interworking RNIBL Redirecting Number Information Delivery Billing Records RNIBLP Redirecting Number Information Delivery Billing Records for PRI RNIE Redirecting Number Information Element RNL Radio Network Layer RNM Resource Notification Manager RNMS Regional Network Monitoring System RNN Redirection Number RNN Rejection Information RNP Redirecting Number Privacy RNR Receiver Not Ready RNT Radio Network Termination RNTABLE Table of 128 integers in the hopping sequence RNU Radio Network Unit RNUM Registration Number RO ISO country code for Socialist Republic of Romania RO Ready-Only RO Receive Only RO Remote Operation(s) RO Reorder RO Request Object RO Responsible Organization RO Ring Out (MAU) RO ROSE Service RO- Remote Operation- ROA Recognized Operating Agency ROA Return On Assets ROAD Research on Object-Oriented Analysis and Design ROAD Routing and Addressing ROADS Running Out of Address Space ROB Reorder Buffer ROB Resilent Object ROBO Remote Office/Branch Office ROC Receiver Operating Characteristic ROC Regional Operating Company ROC RTP Object Center ROCH Rochester RODM Resource Object Data Manager RODR Reorder Treatment ROE Remote Office Equipment ROER RO-ERROR Application Protocol Data Unit ROES Receive Only Earth Station ROFL Rolling on the floor laughing ROH Receiver Off-Hook ROHP Receive Overhead Processor ROI Region Of Interest ROI Return On Investment ROIV Invoke (ROSE PDU) ROIV RO-INVOKE Application Protocol Data Unit ROL Read-Only Latch ROL ROtate to the Left ROLC Routing Over Large Clouds ROLR Receiving Objective Loudness Rating ROM Read-Only Memory ROM Relational Object Manager RON Radio Overlay Network RONI Remote Operator Number Identification ROOM Real-Time Object-Oriented Modeling ROOM ROSA Object Model ROOTSIG Research Triangle Area Object Oriented Technology Special Interest Group ROP Raster Operation ROP Read-Only Printer ROP Receive-Only Printer ROP RTP Object Center RoP Rules of Procedure ROP2 Binary Raster Operation ROPM Remote Operations Protocol Machine ROPM ROSE Protocol Machine ROPP Receive-Only Page Printer ROR Reorigination ROR ROtate to the Right RORE Return Error (ROSE PDU) RORJ ReJect (ROSE PDU) RORJ RO-REJECT Application Protocol Data Unit RORS Return Result (ROSE PDU) RORS RO-RESULT Application Protocol Data Unit ROS Read-Only Storage ROS Realtime Operating System ROS Remote Operation Service ROS Remote Operations ROS Remote Operations Server ROS Remote Operations Service ROS Remote Operator System ROS Remote Oscillator Shelf ROS Return On Sales ROSA RACE Open Services Architecture ROSE Remote Operations Service Element ROSE Research Open System for Europe ROSI Radio Signaling ROT Remote Operation Terminal ROTFL Rolling on the floor laughing ROTL Remote Office Test Line ROTR Receive Only Typing Reperforator ROTS Rotary Out Trunk Switch ROTT Reorder Tone Trunk ROUTOP Routing Optimizer ROV Remotely Operated Vehicle ROWS Remote Outgoing Window Size RP Radio Port RP Reference Point RP Remote Printer RP Remote Programming RP Rendezvous Point RP Requirements Process RP Resource Processor RP Resource Profile RP Routing Point RP Rules of Procedure RPA Repeated Alert RPA Resource Planning Appropriation RPA Resting Point of Accomodation RPAG Radio Paging RPAM Receive Pulse Amplitude Modulation RPC Radio Port Controller RPC Raster Printer Controller RPC Remote Procedure Call RPC Remote Process Creator RPC_M Remote Procedure Call Message RPCGEN Remote Procedure Call Protocol Compiler RPCM Receive PCM RPCM Remote Procedure Call Manager RPCM Remote Procedure Call Mechanism RPCU Radio Port Control Unit RPD Resource Profile Directory RPDI Radio Packet Data Infrastructure (TETRA) RPDN Radio Packet Data Network (TETRA) RPDU Receiver Power Distribution Unit RPE Regular Pulse Excitation RPE Regular Pulse-Excited RPE Remote Peripheral Equipment RPE Residual Pulse Excitation RPE Resource Profile Entry RPE-LPC Regular Pulse Excitation/Linear Predictive Coding RPELTP Regular Pulse Excitation Long-Term Prediction RPE-LTP Regular Pulse Excitation-Long Term Prediction RPE-LTP Residual Pulse Excitation- Long Term Predictive RPF Reverse Path Forwarding RPG Report Program Generator RPG Role-Playing Game RPG Rotary Pulse Generator RPI Radio Port Intermediary RPI Remote Packet Interface RPI Rensselaer Polytechnic Institute RPI Retail Price Index RPI Return to Point of Interrupt RPI Rockwell Protocol Interface RPI Routing Protocol Interface RPL Radio Physical Layer RPL Rapid Prototyping Language RPL Remote Program Load RPL Requested Privilege Level RPL Resource Profile Locator RPLPC Regular Pulse Linear Predictive Coding RPLSQ Remote Packet Level Sequencing RPM Radio Port Multiplexer RPM Red Hat Package Manager RPM Regular Peripheral Module RPM Reliability Performance Measure RPM Remote Port Module RPM Remote Power Monitor RPM Requirements Process Model RPM Revolutions Per Minute rpm revolutions per minute RPM Rotations Per Minute RPN Physical Page Number RPN Radio fixed Part Number RPN Real Page Number RPN Reverse Polish Notation (Calculators) RPO Remote Processor Outage RPOA Recognized Private Operating Administration RPOA Registered Private Operating Agency RPOAB Recognized Private Operating Administration Barred RPOAS Recognized Private Operating Administration Selection RPP Reliability Prediction Procedure RPS Recall Position Seizure RPS Reference Picture Selection RPS Regional Patch Selector RPS Regional Patching System rps Revolutions Per Second RPS Ring Parameter Server RPS Rotational Position Sensing RPSA Redirecting Party Subaddress RPSB Rate Period Specific Billing RPSL Routing Policy Specification Language RPT Radio Personal Terminal RPT Repeat RPT Repeater RPT Repetition RPT Report File RPTR Repeater RPU Radio Port Unit RPU Residential Power Unit RPV Remote Piloted Vehicle RPX Raster Printer Accelerator (Laser Printer Chip) RQ Rate Quotation RQ Request RQ Requests in Queue RQBE Relational Query By Example RQGR Reliability and Quality Generic Requirements RQMS Reliability and Quality Measurements for Telecommunications Systems RQMT Requirement RQMTS Requirements RQSSGR Reliability and Quality Switching Systems Generic Requirements RR Radio Regulations (ITU) RR Radio Regulatory (CEPT) RR Radio Resource RR Radio Resource management RR Rate and Route RR Receive Ready RR Receiver Ready RR Receiver Report RR Register-Register RR Relay Rack RR Remote Relay RR Repair Rate RR Required Resource RR Reroute RR Re-Route RR Rerouted RR Resource Record RR Return Rate RR Return Result RR Revertive Ring RR Ripple Rejection RR Round Robin RR Routing and Reporting RR Routing Registry RRAS Routing and Remote Access Service RRB Radio Regulations Board RRBC Release-to-Release Binary Compatibility RRBCME Request Report BCM Event RRC Radio Resource Control RRC Regional Control Center RRC Regional Radiocommunication Conference (ITU) RRC Root Raised Cosine RRCA Rapid Root Cause Analysis RRD Revised Resistance Design RRDS Relative Record Data Set RRE Receive Reference Equivalent RRE Receiving Reference Equivalent RRF Radio-Related Functions RRF Real Register File RRF Reliability Review Forum RRG Relay Rack Ground RRG Resistance Ring to Ground RRI request/response indicator (SNA) RRI Re-Route Inhibit RRIF Remote Radio Interface RRJ Registration Reject RRL Radio Research Laboratories RRM Radio Resource Management RRM Regenerative Repeater Machine RRM Remote Receiver Module RRN Rerouting Network RRQ Read Request RRQ Registration Request RRR Regular Reroute RRR Reservation Bits RRTE Reroute RS Radiocommunication Sector (ITU-RS) RS Rate Schedule RS Rate Step RS Reader Stop RS Recall Service RS Receive Signature RS Reception Status RS Recommended Standard (EIA) RS Record Separator (IA5) RS Record Start RS Redirecting Subaddress RS Reed-Solomon RS Regenerator Section RS Register/Sender RS Register-Storage RS Registration Services RS Relative Shelf RS Remote Single-Layer RS Request to Send RS Requirement(s) Specification RS Resource Surrogate RS ReSynchronize RS Route Selector RS Route Set RS Route Switch RS Route Switching RS Session Key for Routing R-S Reed-Solomon RSA Receiver Service Agent RSA Repair Service Answering RSA Repair Service Attendant RSA Reset Circuit Group Acknowledge message RSA Rivest-Shamir-Adleman RSA Root Service Allocator RSA Rural Service Area RSA Rural Serving Area RSA Rural Statistical Area RSAC Recreational Software Advisory Council RSADSI RSA Data Security Inc. RSAIT Redirecting Subaddress Information Transfer RSAT Reliability and System Architecture Testing RSB Repair Service Bureau RSB Reset-Band signal RSC Radio Station, Central RSC Rating System Client RSC Receiver Signaling Channel RSC Recognition Selection Committee RSC Recursive Systematic Convolutional RSC Remote Switching Center RSC Remote System Call RSC Reset Circuit message RSC Reset Confirmation message RSC Reset-Circuit signal RSC Route Set Congestion Access Test Message RSCI ISDN Remote Switching Center RSCM Reset Confirmation Message RSCS Remote Spooling Communications Subsystem RSCS Remote Switching Center- SONET RSCS Remote Switching Center Streamlined RSC-S Remote Switching Center- SONET RSD Redirecting Subaddress Delivery RSD Remote Serving Device RSD Requirements Specification Descriptor RSD Root Service Directory RSDR Real-Time State Dependent Routing RSDS Root Service Directory Surrogate RSE Radio System Entity RSE Register Signalling Element RSE Remote Service Equipment RSE Remote Single Layer Embedded (deprecated test method) RSEE Rainbow Software Engineering Environment RSET ReSET (HDLC) RSF Resource Finder RSFG Route Server Functional Group RSG Reset Circuit Group Message RSGB Radio Society of Great Britain (Radio Amateur) RSH Remote Shell RSH Restricted Shell rsh Restricted Shell RSI Rate Schedule Indicator RSI Record Status Indicator RSI Register Sender Inward RSI Repetitive Strain Injury RSI Repetitive Stress Injury RSI Reselection Indication message RSIDE Remote Side RSIE Redirecting Subaddress Information Element RSL Radio Signaling Link RSL Received Signal Level RSL Remote Serial Link RSL Request and Status Link RSLE Remote Subscriber Line Equipment RSLM Remote Subscriber Line Module RSLS Replypath SideLobe Suppression RSLT Radio Subscriber Line Terminal RSLT Result RSM Rainbow System Manager RSM Remote Service Module RSM Remote Switch(ing) Module RSM Reset message RSM Route Set Management RSM Route Set Method RSM Route Set Test Message RSM Route State Machine RSM Signaling-Route-Set-Test Message RSN Radio Station, Nodal RSN Real soon now RSN Record Sequence Number RSN Remote Switched Network Access RSO Regional Standard(s) Organization RSO Register Sender Outward RSOH Regenerator Section Overhead RSOS Remote Support Operating System RSP Real-time Service Processor RSP Response RSP Restricted Sent Paid RSP Root Service Proxy RSP Route Set Test Prohibited message RSP Runtime, Signaling & PRISM RSP Signaling-Route-Set-Test Prohibited signal RSPID Remote Service Profile Identifier RSR Reselect Request message RSR Reset Request message RSR Route Set Test Restricted message RSR Signaling-Route-Set-Test Restricted signal RSRM Reset Request Message RSRT Signaling Route Set Test Control RSS Received Signal Strength RSS Register Signalling System RSS Remote Switching Site RSS Remote Switching System RSS Residential Service System RSS Root Service Selector RSS Root-Sum of Squares RSS LIN Remote Switching System Line RSSI Radio Signal Strength Indication RSSI Radio Signal Strength Indicator RSSI Received Signal Strength Indication RSSI Received Signal Strength Indicator RSSI Received Signal Strength Information RST MDII: Reset Signal Received that Aborts Outgoing Call RST Radio Station, Terminal RST Regenerator Section Termination RST Repeater Station RST Reset RST Reset flag RST Reset-Circuit RST Restore RST Restricted RST Route Set Test message RST Route Set Test signal RST Routing and Screening Treatment RSTE Regenerator Section Terminating Equipment RSTP Real-Time Stream Transport Protocol RSTP Regional Signal Transfer Point RSTS Resource Sharing Time Sharing RSU Remote Subscriber Unit RSU Remote Subscriber(s) Unit RSU Remote Switch(ing) Unit RSUS Requested Suspended Line RSUS Requested Suspension RSVA Rate Schedule Variation RSVD Rapid Sequential Visual Display RSVD Reserved RSVD Reserved bits for future definition RSVP Resource Reservation Protocol RSX Real Time Resource Sharing Executive RSX Realistic Sound Experience RSZI Regional Subscription Zone Identity RT DDOC Section: Real Time RT Radio Telephony RT Radio Terminal RT Radiotelephone RT Rate RT Real Time RT Real Time RT Receive Timing RT Register Traffic RT Register Transfer RT Register Translator RT Reliable Transfer RT Remembered Table RT Remote Terminal RT Reorder Tone RT Request Type RT Resource Type RT Response Time RT Resume Typing RT Ring Timing RT Ring Trip RT Ringback Tone RT Ringing Tone RT Ring-Trip RT RoundTable RT Route RT Route Treatment RT Router RT Routing Table RT RTSE Service RT- Reliable Transfer- RT(X)-DOS Real-Time (Task)-DOS RT1 Real-Time-1 RT2 Real-Time-2 RTA Rapid Thermal Annealing RTA Real-Time (Data) Acquisition RTA Remote Test Access RTA Remote Trunk Arrangement RTA Remote Trunking Arrangement RTA Response Time Analyzer (INOS-ATT) RTA Routing and Terminal Administration RTAC Regional Technical Assistance Center RTAC Transfer Allowed Control RTAM Remote Terminal Access Method RTANNC Routed to an Announcement RTAP Real Time Application Platform RTAP Real-Time Applications RTB Real Time Billing RTB Retransmission Buffer RTB Route Block RTC Raleigh Training Center RTC Real Time Controller RTC Real-Time Chat RTC Real-Time Clock RTC Real-Time Control RTC Restart Confirmation RTC Restart Confirmation (packet) RTC Return To Control RTC Rich Text Compressed RTC Routing Control RTC Run-To-Completion RTCA Real Time Charge Advice RTCA Requirements and Technical Concepts for Aviation (USA) RTCC Transfer-Controlled Control RTCG Run-To-Completion Group RTCP Real Time Control Protocol RTCP Real-Time Transport Control Protocol RTCP RTP Control Protocol RTD Real Time & Distributed RTD Real Time Difference RTD Real Time Distributed RTD Record Type Descriptor RTD Reference Time Device RTD Reset Trunk Data RTD Resistive Temperature Detector RTD Round Trip Delay RTDC Regional Telecommunication Development Conference RTDE Round-Trip Delay Estimate RTDMS Real-Time Data Management System RTDMS Real-Time Database Management System RTDN Routed to the Specified DN RTDS Real-Time Distributed System Kernel RTDSE Round Trip Delay Signalling Entity RTDTR Real-Time Dynamic Traffic Routing RTE Real-Time Executive RTE Real-Time Extensions RTE Remote Terminal Emulator RTE Remote Terminal Emulator/response time estimator (SNA) RTE Route RTE Route Table Entries RTE Routing RTE Routing Enabled RTE Run-Time Environment RTEB Routing Block RTEC Raleigh Technical Education Center RTEI Remote Terminal Endpoint Identifier RTERMIDTYP Remote Terminal ID Type RTES Real Time Expert System (Bellcore) RTF Radio Terminal Function RTF Real Time Feed RTF Rich Text Format RTF-J Rich Text Format-Japanese RTFM Read the Fantastic Manual RTFM Read the Fine Manual RTFM Read the Friendly Manual RTFM Read the Funny Manual RTFM Read the manual RTFR Real Time Flexible Rating RTG Resistance Tip to Ground RTH Remote Telecommunications Hub RTI Rate Treatment Index RTI Referred To Input RTI Remote Terminal Interface RTI Response Type Indicator RTI RestarT Indication RTI Return from Interrupt RTI Road Transport Informatics RTI Road Transport Information systems RTI Route Index RTI Run Time Instrumentation RTIC Real Time Interface Coprocessor RTIE Relative Time Interval Error RTIF Remote Terminal Interface RTIF Remote Thumbwheel Interface RTIF Reset Terminal Interface RTIF Restart Terminal Interface RTIU Remote Terminal Interface Unit RTIX Rate Treatment Index Table RTL Radio Technology Laboratory (RA) RTL Register Transfer Language RTL Register Transfer Level RTL Resistor-Transistor Logic RTL Round Trip Loss RTL Runtime Library RTL Run-Time Library RTL Siemens Research and Technology Laboratories RTLP Receive Transmission Level Point RTLP Reference Transmission Level Point RTM Ready To Manufacture RTM Receive Transmit Multiplex RTM Reference Test Method RTM Release to Manufacturing RTM Reliablity Test Module RTM Requirements Traceability and Management RTM Response Time Monitor (SNA) RTM Runtime Manager RTM Run-Time Manager RTMC Real-Time Management Coordination RTMc RTM Candidate RTMC RTM Compile RTMP Routing Table Maintenance Protocol RTMP Routing Table Management Protocol RTMS Radio Telephone Mobile System RTMv3 Requirements Traceability and Management- Version 3 RTN Rate Treatment Number RTN Retrain Negative RTNR Real-Time Network Routing RTNR Ringtone No Reply RTO Ready To Order RTO Retransmission Time Out RTOFM Read the Other Fine Manual RTOFM Read the Other Friendly Manual RTOIS Ready To Order In-Service RTO-IS Ready To Order- In Service RTONIS Ready To Order Not In-Service RTO-NIS Ready To Order- Not In Service RTORQ RT-OPEN request/indication RTOS Real-Time Operating System RTP Rapid Thermal Processing RTP Rapid Transport Protocol RTP Real-Time Protocol RTP Real-Time Transport Protocol RTP Release To Pivot RTP Research Triangle Park RTP Retrain Positive RTP Room Temperature and Pressure RTPC Transfer Prohibited Control RTPM Reliable Transfer Protocol Machine RTPM RTSE Protocol Machine RTR Real-Time Reliable RTR Resistance Tip to Ring RTR RestarT Request (packet) RTRC Transfer-Restricted Control RTRS Real-Time Rating System RTRV Retrieve RTS Ready To Ship RTS Real-Time Simulator RTS Real-Time System RTS Reliable Transfer Service (OSI, X.400/MHS) RTS Remote Test System RTS Request To Send (signal) RTS Residual Time Stamp RTS Return from Subroutine RTS Return To Service RTS Runtime Service RTS Run-Time System RTS-5A Remote Test System-5A RTSA Real-Time Structured Analysis RTSE Reliable Transfer Service Element (OSI, X.400/MHS) RTSE Remote Transfer Service Element RTSI Real-Time System Integration RTSP Real Time Streaming Protocol RTSS Run-Time Support System RTT Radio Teletypewriter RTT Radio Transmission Technology RTT RadioTeleType RTT Regie des Telegraphes et des Telephones (B) RTT Resident Tunneling Transistors RTT Round-Trip Time RTT Route Translation Table RTT Run-Time Team RTTB Real-Time Testbed RTTF Routine Transmission Test Failure RTTH Radio To The Home (DECT) RTTI Road Traffic and Transport Informatics RTTI Run-Time Type Identification RTTI Run-Time Type Information RTTP RT-TURN-PLEASE RTTR TR-TRANSFER-REQUEST RTTS Receive Transmit Time Switch RTTT Road Transport and Traffic Telematics RTTU Remote Trunk Test Unit RTTY Radio Teletype RTTY Radio Teletypewriter RTU Remote Terminal Unit RTU Remote Test Unit RTU Residential Transceiver Unit RTU Right to Use RTU Routing Update RTV Real-Time Video RTV Room Temperature Vulcanising (Elastomer) rt-VBR Real-Time Variable Bit Rate RTW Rate Treatment Word RTWC Redirected Two-Way Call RTX Real-Time Executive RU Are you? RU ISO country code for Russian Federation (Russia) RU Recording Unit RU Release Unit RU Remote Unit RU request unit/response unit (SNA) RU Residential Unit RU Response Unit RUA Received Upstream Neighbor's Address RUA Remote User Area RUB Remote Unit Bay RUC Remote Unit Cabinet RUI Request Unit Interface RUN Runtime RUP Reuse Partitioning RUPI Remote Universal Peripheral Interface RURAX Rural Automatic Exchange RUS Restrict Usage Sensitive Use RUS Rural Utility Services RUWE Receive Upper Window Edge RV Remote Video RVA Recorded Voice Announcement RVA Review Announcements RvC Dutch Council for Certification RVC Rate Variation Code RVC Reverse Voice Channel RVD Remote Virtual Disk RVI ReVerse Interrupt (BSC) RVLC Reverse VLC RVM Review Minutes RVMS RDAS Voice Mail Service RVQ Recursive Vector Quantization RVR Rapid Virtual Reality RVSA Remote Variant Selection Algorithm RVT Reverse Trunk Timing RVT Routing Verification Test RW ISO country code for Rwandese Republic (Rwanda) RW Read/Write RW Regional Workshop RW Rogue Wave RWA Routing Wavelength Assignment RWC Reduced Write-Current RWI Radio and Wire Integration RWI Reset Window Indicator RWITM Read With Intent To Modify RWM Read-Write Memory RWOK Read/Write OK RWS Regional Workshop RWS-CC Regional Workshop Co-ordinating Committee RX Receive RX Receiver Rx Reception RX Register-Indexed Storage RX Remote Exchange RX Resume Execution RxBD Receive Buffer Descriptor RXD Receive Data RXLEV Received Signal Level RxM Receive Machine RXQUAL Received Signal Quality RxSB Received Signaling Bit Pattern RZ Resistance Zone RZ Return-to-Zero (recording) RZ(P) Polarized Return-to-Zero (recording)
S S reference point
S Screen
s second
S Segment
S Sent
S Serial
S Session
S Session Layer
S Session Layer Service
S Session Transactor
S Set-up
S Short Duration
S Sign
S Sleeve
S Solved
S South
S Spanish
S Station
S Status
S Sticky Bit
S Storage
S Strike-Through (HTML tag)
s String
S Student
S Supervisor
S Supervisory
S Supervisory function bit
S Surrogate
S Switch
S- Slotted
S&H Sample and Hold
S&SE Software and Systems Engineering
S/360 System 360
S/370 System 370
S/390 System 390
S/A Status/Alarm
S/D Signal/Distortion Ratio
S/D Source/Drain
S/DMS Supernode/DMS
S/H Sample and Hold
S/I Signal to Interference ratio
S/M/ST SCE Service/Modular/System Transferrence
S/MIME Secure MIME
S/N Signal to Noise ratio
S/P Serial-to-Parallel
S/PDIF Sony/Philips Digital Interface Format
S/P-DIF Sony/Philips Digital Interface Format
S/R Send/Receive
S/RSC SONET Remote Switching Center
S/S Summary/Status
S/SYS Storage System
S/T-ISLC S/T-Interface ISDN Line Card
S/U Single User
S/W Software
S/WAN Secure WAN
S1) Supervisory function bit
S12 System 12
s5fs System V File System
SA ISO country code for Kingdom of Saudi Arabia
SA Scientific American (periodical)
SA Search Area (TETRA)
SA Section Adaptation
SA Service Affecting
SA Service Agent
SA Service Alarm
SA Service Analysis
SA Service Area
SA Service Assistant
SA Set-up Acknowledge
SA Signaling Agent
SA Single Armor
SA Single Armored
SA Slow Acting
SA Source Address (IBM)
SA Source Allocation
SA Stand-Alone
SA Structured Analysis
SA Stubs Available
SA Sub-address
SA Switched Access
SA System Administration
SA System Administrator
SA System Agent
SA/IC Service Assistant/In Charge
SA/SD Structured Analysis/Structured Design
SAA Service Adaptive Access
SAA Service Architecture Analysis
SAA Service Aspects and Applications
SAA Standards Association of Australia
SAA System Application Architecture (IBM)
SAAL Signaling ATM Adaptation Layer
S-AAL Signaling ATM Adaptation Layer
SAAL-5 Signaling ATM Adaptation Layer 5
SABA Software Architecture Based Analysis
SABM Set Asynchronous Balanced Mode
SABME Set Asynchronous Balanced Mode Extended
SABT Status, Aborted
SAC SCE Access Control
SAC Service Access Code
SAC Service Access Controller
SAC Service Activation Controller
SAC Service Agent Connection
SAC Serving Area Concept
SAC Signaling Address Controller
SAC Site Administrative Computer
SAC Special Area Code
SAC Status and Command
SAC Status and Control
SAC STM-to-ATM Converter
SAC Synchronous-to-Asynchronous Converter
SAC Synchronous-to-ATM Conversion
SAC Syntax-Based Arithmetic Coding
SAC System Activity Coordinator
SACB Subscriber Activated Call Blocking
SACC Service Agent Connection Component
SACC Slow Associated Control Channel
SACCH Slow Associated Control Channel
SACCH Slow Associated Control CHannnel
SACCH/C4 Slow Associated Control Channel/SDCCH/4
SACCH/C4 Slow, SDCCH/4 Associated, Control CHannel
SACCH/C8 Slow Associated Control Channel/SDCCH/8
SACCH/T Slow Associated Control Channel/Traffic Channel
SACCH/T Slow, TCH-Associated, Control CHannel
SACCH/TF Slow Associated Control Channel/Traffic Channel Full Rate
SACCH/TF Slow, TCH/F-Associated, Control CHannel
SACCH/TH Slow Associated Control Channel/Traffic Channel Half Rate
SACCH/TH Slow, TCH/H-associated, Control CHannel
SACCS Strategic Air Command Control System
SACF Service Access Control Function
SACF Service Application Control Function
SACF Single Association Control Function
SACF Single Association Controlling Function
SACHH/C4 Slow, SDCCH/4 Associated, Control CHannel
SACK Selective Acknowledgement
SACL System Access Control List
SACR Set of Allowable Calling Rates
SACTS Sequentially Controlled automatic Transmitter
SAD Send All Digits message
SAD Sender Attachment Delay
SAD Service Attribute Determinator
SAD Single Administrative Document (UN/ECE)
SAD Space Antennae Diversity
SAD Speech Activity Detection
SADC Special Access Data Channel
SADM Synchronous Asynchronous Data Module
SADR Sender Atachment Delay Recorder
SADR Sender Attachment Delay Recording
SADS System Administration Data System
SAE Service Alteration Element
SAE Society of Automotive Engineers
SAE Switch Access Evolution
SAE Switched Access Evolution
SAE Systems Application Engineering
SAER Service and Equipment Record
SAF Service Access Facility
SAF Service Agency Framework
SAF Service Agent Framework
SAF Strategic Automation Framework
SAFE Security and Freedom through Encryption
SAFE Store And Forward Element
SAFER Split Access and Flexible Egress Routing
SAFT Service Agency Framework Team
SAF-TE SCSI Accessed Fault-Tolerant Enclosures
SAG SQL Access Group
SAGE Security Algorithms Group of Experts (ETSI)
SAGE SemiAutomatic Ground Environment,
SAGE Space-Alternating Generalized Expectation-Maximization
SAGFET Self Aligned Gate FET
SAGR Supergroup Automatic Gain Regulator
SAI S/T-Interface Activity Indicator
sai S/T-Interface Activity Indicator
SAI Security Association Identifier
SAI Service Access Indicator
SAI Service Area Interface
SAI Sub-Architecture Interface
SAI System Access Interface
SAIC Science Applications International Corporation
SAID Speech-Activated Intelligent Dialing
SAJI Self-Aligned Junction Isolation (IC Production)
SAL Service Access Layer
SAL Soft Adjacent Layer
SAL Solid ALuminum (Capacitor)
SAL Special Access Line
SAL SQL Windows Application Language
SALN Station Administration Line
SALT Subscriber's Apparatus Line Tester
SAM SDM ASCII MAPCI/CI
SAM Secure Access Manager
SAM Security Access Manager
SAM Sequential Access Methode
SAM Serial-Access Memory
SAM Service Access Multiplexer
SAM Service Alteration Manager
SAM Special Application Module
SAM Speech-Activated Manipulator
SAM Stand-Alone Micro-sequencer
SAM Stocklist Application Module
SAM Subscriber Access Multiplexer
SAM Subsequent Address Message
SAM Subsequent Address message
SAM Subsystem Access Model
SAM Surface-to-Air Missile
SAM Symantec Anti-Virus for Macintosh
SAM System Access Monitor
SAM System Administration Manager
SAM System Administration Memos
SAM1 Subsequent Address Message No. 1
SAM2 Subsequent Address Message No. 2
SAM3 Subsequent Address Message No. 3
SAM4 Subsequent Address Message No. 4
SAM5 Subsequent Address Message No. 5
SAM6 Subsequent Address Message No. 6
SAM7 Subsequent Address Message No. 7
SAMA Simple Asynchronous Multiple Access
SAMA Supplementary Automatic Message Accounting
SAMBO Simultaneous Auroral Multi Balloon Observation
SAMC Subscriber Access Maintenance Center
SAME Subscriber Access Maintenance Entity
SAME System Analyze Message Event
SAMS Services and Access Management System
SAMTS South American Mobile Telephone Service
SAN Server Area Networking
SAN Service Access Node
SAN Small Area Network
SAN Storage Area Network
SAN Switching Access Networks
SANC Signaling Area/Network Code
SANE Standard Apple Numeric Environment
SANSW Secure Answering
SANZ Standards Association of New Zealand
SAO Single Association Object
SAO Subsequent Address With One Signal message
SAP Second Audio Programme (Multi-Channel TV Sound)
SAP Service Access Point
SAP Service Advertisement Protocol
SAP Service Advertising Packet
SAP Service Advertising Protocol
SAP Service Alteration Point
SAP Station Auxiliary Power
SAP2 Service Access Point 2
SAPI Service Access Point Identifier
SAPI Service Access Point Indicator
SAPI Speech Application Programming Interface
SAPID Service Access Point Identifier
SAPR Source Address Pointer Register
SAPR Supervisor Area Pointer Register
SAR Search And Rescue
SAR Segmentation and Reassembly
SAR Segmentation And Reassembly
SAR Segmentation and Reassembly Sublayer
SAR Software Architecture Review
SAR Specific Absorption Rate (Watts/kilogram)
SAR Static Attachment Requirements
SAR Store Address Register
SAR Successive Approximation Register (ADC)
SAR Synthetic Aperture Radar
SAR System Address Register
SARA Software Architecture for Reuse in Access
SARB Status, All Resources Busy
SARC Symantec Anti-Virus Research Center
SARF Security Alarm Reporting Function
SARI Secondary Access Rights Identity
SARI Secondary ARI
SARM Set Asynchronous Response Mode (HDLC, LAPB)
SARME Set Asynchronous Response Mode Extended (HDLC)
SARP Standards And Recommended Practices (ICAO)
SARSAT Search And Rescue SATellite
SARTS Switched Access Remote Test System (CSC-ATT)
SAS Secure Access Service
SAS Sequenced Answer Signal
SAS Service Announcement System
SAS Single Attach Station
SAS Single Attachment Station (FDDI)
SAS SNMP Applet Server
SAS Software Application System
SAS Statistical Analysis System
SAS Subscriber Alerting Signal
SAS Support and Administration Services
SAS Surveillance Administration System
SAS Switched Access Service
SAS Switched Access System
SASA Service and SIB Archiving
SASC Service and SIB Cataloguing
SASC Sports and Social Club
SASCF Single Activation Selective Call Forwarding
SASE Special Application Service Element
SASE Specific Application Service Element
SASE Standalone Synchronization Equipment
SASH Stand-Alone Shell
SASI Send Additional Setup Information message
SASI Shugart Associates Standard Interface
SASI Shugart Associates System Interface
SASL Simple Authentication and Security Layer
SASM Softools Advanced Macro Assembler
SASO Saudi Arabian Standards Organization
SASP Standard Automated Split-Referral
SASUI Send Additional Setup Information message
SAT Satellite Indicator
SAT Satisfaction
SAT Scenario Analysis Tool (RACE)
SAT Services Architecture Team
SAT Societe Anonyme de Telecommunications (F)
SAT Software Agent Technology
SAT Subscriber Access Termination
SAT Supervisory Audio Tone
SATAN Security Administrators Tool for Analyzing Networks
SATM Selected Area Transfer Mode
SATS Selected Abstract Test Suite
SATT Strowger Automatic Toll Ticketing
SATT Swiss Army Test Tool
SAUG Software Architecture User Guide
SAW Software Assembly Workbench
SAW Surface Acoustic Wave
SAWF Surface Acoustic Wave Filter
SAWO Surface Acoustic Wave Oscillator
SAX Small Automatic Exchange
SB Broadband S-Interface
SB ISO country code for Solomon Islands
SB Scheduler Block
SB Scoreboard
SB Scroll Bar
SB Security Base
SB ServiceBuilder
SB Signaling Battery
SB Simple Borrowing
SB Simultaneous Broadcast
SB Soft Blocking
SB Sound Blaster
SB Special Billing
SB Speech Bus
SB Standby Indicator
SB Sub-Band
SB Subbundle
SB Suboption Begin
SB SuBstitution
SB Suspend Both
SB Suspend Both Origination and Termination
SB Synchronization Burst
SB System Busy
SB1 Scrambled Binary 1s
SBA Scene Balance Algorithms
SBA Single-Bridged Arrangement
SBA Small Business Access
SBA Software Generated Group Blocking-Acknowledgement Message
SBA SuperNode Billing Application
SBAC Station Billing of Attendant-Handled Calls
SB-ADPCM Sub-Band ADPCM
SBAR Status Bar
SBC S-Bus Circuit
SBC S-Bus Interface Circuit
SBC SCSI-3 Block Commands
SBC Single Board Computer
SBC Single Byte Command
SBC Single-Board Computer
SBC Southwestern Bell Communications
SBC Southwestern Bell Corporation
SBC Sub Band Coding
SBC Subband Coding
SBC Sub-Band Coding
SBC Switching and Bridging Control
SBC System Broadcast Channel
S-BCCH Short Message Service Broadcast Control Channel
SBCD System Busy Card
SBCE STM Broadband Control Element
SBC-HS Sub-band Coding Harmonic Scaling
SBCS Single-Byte Character Set
SBCS Source and Binary Control System
SBDA Shared-Buffer Direct Access
SBE Single Byte Extension
SBE Small Business Edition
SBE Software Build Environment
SBE Super-twisted Birefringence Effect (Advanced LCD Flat-Panels)
SBEC Subband Echo Canceler
SBERR Single-Bit Error Rate
SBF Sequential Block File Manager
SBF Speech Bus Formatter
SBG Small Business Group
SBH Strip-Buried Heterostructure
SBI Selective Barge-In
SBIC SCSI Bus Interface Controller
SBIC Shared-Bus Interface Controller
SBID Scheduler Block Identifier
SBIF Speech Bus Interface
SBIP ServiceBuilder Intelligent Peripheral
SBL Special Billing
SBLF Set Busy Lamp Field
SBLN Special Billing Number
SBM Small Business Marketing
SBM Successful Backward Set-Up Information Message
SBM SuperNode Billing Manager
SBN Special Billing Number
SBNM Standards-Based Network Management
SBP SCSI-3 Serial Bus Protocol
SBPC Single Burst Per Carrier
SBPT Single Burst Per Transmitter
SBR Segment Base Register
SBR Simple Borrowing from Richest
SBR Source Browser Information file
SBR Standby-Ready signal
SBR Statistical Bit Rate
SBR Subsystem Backup Routing message
SBRC Subsystem Backup Routing Control
SBS S/DMS Billing Server
SBS Satellite Business System (USA)
SBS Scheduler Block Scheduler
SBS Scroll Bar Style
SBS Server-Based Setup
SBS Siemens Base Station System
SBS Silicon Bilateral Switch
SBS Small Business Server
SBS Smart Battery Specification
SBS Supernode Billing System
SBSN ServiceBuilder Service Node
SBSY System Busy
SBT Services Base Team
SBT six-bit transcode (IBM)
SBT Spare Bits
SBU Strategic Business Unit
SBUR Software Blocking/Unblocking Reception
SBUS Software Blocking/Unblocking Sending
S-Bus Shorting Bus
SBV Syntax-Based Videotex
SBVP strict SBV Protocol test group
SBX Small Business Exchange
SBY Standby
SC ISO country code for Republic of Seychelles
SC Santa Clara
Sc Scan
SC Scanner
SC Scenario Compiler
SC Secondary Center
SC Secondary Channel
SC Sectional Center
SC Select Code
SC Send Common
SC Sending Complete
SC Sequence Count
SC Service Centre (used for SMS)
SC Service Channel
SC Service Code
SC Service Control
SC Service Controller
SC Session Control
SC Shelf Controller
SC Short Circuit
SC Signaling Channel
SC Signaling Controller
SC Signaling Converter
SC Signalling Capability
SC Signalling Component
SC Silicon Compilation
SC Silicon Compiler
SC Silk Covered
SC Slot Controller
SC Slow Channel
SC Source Code
SC Space Character
SC Spacer Controller
SC Special Connections
SC Spectrum Compatible
SC Speed Call
SC Speed Calling
SC Standard Components
SC Steel Cored
SC Steering Committee (EWOS)
SC Stromberg-Carlson
SC Structure Code
SC Study Committee
SC Sub-Committee
SC Subnetwork Controller
SC Subscriber Carrier
SC Summary punch
SC SuperCAMA
SC Superimposed Current
SC Supervisory Code
SC Suppressed Carrier
SC Switched Capacitor (Technology)
SC Switching Center
SC System Command
SC U.S. postal code for South Carolina
S-C Stromberg-Carlson
SC/A Signal Convertor/Allotter
SC/MP Single-Chip Microprocessor
SC++ Symantec C++
SC1 Speed Calling 1-Digit
SC1 Speed Calling Short List
SC1BG Speed Calling, 1-Digit, Business Group List
SC1CC Speed Calling, 1-Digit, Customer Controlled
SC1D Speed Calling, 1-Digit Individual
SC1NL Speed Calling 1-Digit Number List
SC1SH Speed Calling 1-Digit Shared
SC2 Speed Calling 2-Digit
SC2 Speed Calling Long List (L30)
SC2BG Speed Calling, 2-Digit, Business Group List
SC2CC Speed Calling, 2-Digit, Customer Controlled
SC2D Speed Calling, 2-Digit Individual
SC2NL Speed Calling 2-Digit Number List
SC2SH Speed Calling 2-Digit Shared
SC2SZ 2-Digit Speed Calling Size
SC3 Speed Calling Long List (L50)
SCA Selected Call Appearance
SCA Selective Call Acceptance
SCA Service Call Administration
SCA Service Change Agreement
SCA Shared Coverage Area
SCA Single Call Arrangement
SCA Single Channel Adaptation
SCA Single Connector Attachment
SCA Software Capability Agreement
SCA Standard Control Authority
SCA Synchronous Communication Adaptor
SCA System Change Analysis
SCA Systems Connectivity Architecture (Timeplex)
SCAAC Selective Call Acceptance Active/Inactive Status
SCAACC Selective Call Acceptance Activate/Deactivate Access Codes
SCAB Selective Call Acceptance Billing Records
SCABACC Selective Call Acceptance Activate/Deactivate Business Group Access Code
SCACI Selective Call Acceptance Confirmation Indication
SCADA Supervisory Control and Data Acquisition
SCAF Service Control Access Function
SCAFS Switched Capacitor Filter Synthesis
SCAI Small Computer Application Interface
SCAI Switch-Computer Application(s) Interface
SCALE Selective Call Acceptance List Editing
SCALEACC Selective Call Acceptance List Editing Access Code
SCALEBACC Selective Call Acceptance Business Group List Editing Access Code
SCAM SCSI Configuration Auto Magically
SCAM SCSI Configuration Automatically
SCAM Service Common Application Model
SCAM Services Common Analysis Model
SCAMA Super Centralized Automatic Message Accounting
SCAMFL Selective Call Acceptance Multiple Forwarding Limit
SCAMIS Schedule Control and Maintenance IS (CSC-ATT)
SCAMP Switched Capacitor Amplifier
SCAMS Scanning Microwave Spectrometer
SCAN Switched Circuit Automatic Network
SCANL Selective Call Acceptance Number List
SCANLS Selective Call Acceptance Number List Size
SCANS Software Change Administration and Notification System
SCAPIN Selective Call Acceptance Personal Identification Number
SCAPINEA Selective Call Acceptance Personal Identification Number Entry Attempts
SCAR SIMBA Commercial Alternative Realization
SCARAB Submersible Craft Assisting Repair and Burial
SCARC Selective Call Acceptance Restricted Control
SCARCAM Selective Call Acceptance Restricted Control for Analog Member of EKTS
SCARDN Selective Call Acceptance Remote Forwarding DN
SCARNP Selective Call Acceptance Redirecting Party Number Presentation
SCARRDN Selective Call Acceptance Restriction on Remote DN
SCART Syndicat des constructeurs d'appareils radio récepteurs et téléviseurs (France)
SCAT Scan and Trigger Utility
SCAT Selective Call Acceptance Toggle
SCATS Sequentialy Controlled Automatic Transmitter Start
SCATT Selective Call Acceptance Terminating Treatment
SCB South Central Bell
SCB String Control Byte
SCB Subnetwork Control Block
SCB System Configuration Block
SCC SAT Color Code
SCC Satellite Communications Controller
SCC Satellite Control Centre
SCC SCSI-3 Controller Commands
SCC Secure Computing Corporation
SCC Serial Communications Controller
SCC Service Configuration Control
SCC Service Control Customization
SCC Signal Conversion Circuit
SCC Signaling Conversion Circuit
SCC Software Change Control
SCC Software Control Category
SCC Specialized Common Carrier
SCC Standards Council of Canada
SCC Station Controlled Conferencing
SCC Station-Controlled Conference
SCC Supercomputer Center
SCC Supercomputing Center
SCC SuperNode Combined Core cabinet
SCC Switching Control Center
SCC System Control Center
SCC1 Software Control Category 1
SCCD/SU SMP-Created Service Data and SLP Update
SCCE SCC Event Register
SCCF Satellite Communication Control Facility
SCCM SCC Mask Register
SCCP Signalling Connection Control Part (SS7)
SCCS SCC Status Register
SCCS Source Code Control System
SCCS Switching Control Center System
SCCS Switching Control Center System (CSC-ATT)
SCD Selective Cell Discard
SCD Standard Color Display
SCD Structured Chip Design (IC Design)
SCD System Clock Disable
SCDI Session Call Distribution Interface
SCDL Software Components Description Library
SCDM Services Common Domain Model
SCDN Secondary DN
SCDP Subcomponent Development Plan
SCDS Simulation Continuous and Discrete Processes
SCE Service Configuration Element
SCE Service Control Entity
SCE Service Creation Element (Hewlett Packard)
SCE Service Creation Environment
SCE Shore-Controlled Equaliser (Telecom. Sea-Cables)
SCE Software Capability Evaluation
SCE System Capacity Engineering
SCEAF Service Creation Environment Agent Function
SCEC SCE Conversion
SCECE SCE Capability Expansion
SCEF Service Creation Environment Function
SCEN ISDN Scenarios Administrative View
SCEP Service Creation Environment Point
SCESC SCE-to-SCE System Consistency
SCF Selective Call Forwarding (supplementary service)
SCF Sequential Character File Manager
SCF Service Control Function (IN term)
SCF Shared Channel Feedback
SCF Signaling Control Function
SCF Software Change Form
SCF Switched Capacitor Filter
SCF Synchronization and Coordination Function
SCF(M) Service Control Function (Mobile)
SCFAC Selective Call Forwarding Access Code
SCFAC Selective Call Forwarding Active/Inactive Status
SCFB Selective Call Forwarding Management Events Billing Records
SCFCI Selective Call Forwarding Confirmation Indication
SCFDN Selective Call Forwarding Directory Number
SCFDN Selective Call Forwarding Remote Directory Number 1
SCFDN2 Selective Call Forwarding Remote Directory Number 2
SCFDN3 Selective Call Forwarding Remote Directory Number 3
SCFDN4 Selective Call Forwarding Remote Directory Number 4
SCFL Source Coupled FET Logic
SCFLE Selective Call Forwarding List Editing
SCFLEACC Selective Call Forwarding List Editing Access Code
SCFM Subcarrier Frequency Modulation
SCFMFL Selective Call Forwarding Multiple Forwarding Limit
SCFMNL Maximum Number of Selective Call Forwarding Lists
SCFNL Selective Call Forwarding Number List
SCFNL Selective Call Forwarding Number List 1
SCFNL1ACC Selective Call Forwarding List 1 Access Codes
SCFNL1T Selective Call Forwarding Number List 1 Toggle
SCFNL2 Selective Call Forwarding Number List 2
SCFNL2ACC Selective Call Forwarding List 2 Access Codes
SCFNL2T Selective Call Forwarding Number List 2 Toggle
SCFNL3 Selective Call Forwarding Number List 3
SCFNL3ACC Selective Call Forwarding List 3 Access Codes
SCFNL3T Selective Call Forwarding Number List 3 Toggle
SCFNL4 Selective Call Forwarding Number List 4
SCFNL4ACC Selective Call Forwarding List 4 Access Codes
SCFNL4T Selective Call Forwarding Number List 4 Toggle
SCFNLS Selective Call Forwarding Number List Size
SCFQ Self-Clocked Fair Queuing
SCFRC Selective Call Forwarding Restricted Control
SCFRCAM Selective Call Forwarding Restricted Control for Analog Member of EKTS
SCFRING Selective Call Forwarding Reminder Notification Suppression
SCFRNP Selective Call Forwarding Redirecting Party Number Presentation
SCFRRDN Selective Call Forwarding Restriction on Remote DN
SCG Semiconductor Components Group
SCG Software Concepts Group
SCG System Clock Generator
SCGA Software Carrier Group Alarm
SCH Schedule File
SCH Seizures per Circuit per Hour
SCH Seperate Confinement Heterostructure (Cavity Laser)
SCH Serial Channel
SCH Service Circuit Handler
SCH Sub-Carrier/Horizontal (Phase, Colour TV)
SCH Synchronization Channel
SCHED Scheduled
sci Newsgroups on science
SCI Scalable Coherent Interface
SCI Sci-Fi Channel
SCI SDM Command Interpreter
SCI Serial Communication Interface
SCI Serial Communications Interface
SCI Small Computer Interface
SCI Subscriber Carrier Interface
SCIS Service Cost Information System
SCIT Special Circuit Interface T
SCIT Steering Committee on Information Technology
SCK A Static Cipher Key
SCL Shelf Console Link
SCL Simulation Control Language
SCL Speed Call List
SCL Speed Call Long
SCL Speed Calling
SCL Speed Calling List
SCL Speed Calling Long List
SCLC SCCP Connectionless Control
SCLLI Short Common Language Location Identifier
S-CLNP Specific Connectionless Network Protocol
S-CLNS Specific Connectionless Network Service
SCLPA Single Channel Linear Power Amplifier
SCM SCC Mode Register
SCM Selected Communications Mode
SCM Selective Call Management
SCM Selective Call Messaging
SCM Service Connection Manager
SCM Service Control Manager
SCM Set Conducted Mode
SCM Single Carrier Modulation
SCM Single-Channel Modem
SCM Software Call Model
SCM Software Change Management
SCM Software Configuration Management
SCM Station Class Mark
SCM Subcarrier Multiplexing
SCM Subscriber Carrier Module
SCM Subsystem Communication Model
SCM Supply Chain Management
SCM Supressed Carrier Modulation
SCMA Subcarrier Multiple Access
SCME Service Control Management Entity
SCMG SCCP Management
SCML Software Configuration Management Library
SCMP Series Completion
SCMP Simple Connection Management Protocol
SCMS Serial Copy Management System (DAT)
SCM-U Subscriber Carrier Module-Urban
SCN Scan
SCN Self-Compensating Network
SCN Service Circuit Node
SCN State Change Notification
SCN Sub-Channel Number
SCN Switched Circuit Network
SCO Santa Cruz Operation
SCO Short Called Off-Hook
SCO SOS Command Object
SCOC SCCP Connection Oriented Control
SCOCS Selective Class of Call Screening
SCOCS Selective Class of Call Screening Selection
SCOCSBN Selective Class of Call Screening Service Selection Billing Number
SCOCSCS SCOCS Class of Service
SCOCSID SCOCS Service Identification
SCOCSSFG SCOCS Service Parameter/SFG Association
SCODL Scan Conversion Object Description Language
SCOF Selective Control of Facilities
SCON SCC Configuration Register
SCON Signaling Configuration
SCOPE Simple Communications Programming Environment
SCOT Steering Committee on Telecommunications
SCOTICE Scotland-Iceland submarine cable
SCOTS Surveillance and Control of Transmission Systems
SCP Save Cursor Position
SCP Secondary Cross-connection Point (Telecom)
SCP Selectable Code Point
SCP Serial Communication Port
SCP Serial Control Port
SCP Service Control Point (IN term)
SCP Shelf Control Processor
SCP Signaling Control Protocol
SCP Stromberg-Carlson Practice
SCP Switch Control Processor
SCP System Configuration Pointer
SCP System Control Point
SCP System Control Programme
SCP2 Service Control Point 2
SCPC Single Channel Per Carrier
SCPD Maintenance Scratchpad
SCPII Second Generation DMS SCP
SCPN Screening of Calling Party Number
SCPS Synchronous Composite Packet Switching
SCPT single carrier per transponder
SCPT Single Channel Per Transponder
SCR Saddle Coil Resonator (Medical)
SCR Screen Saver file
SCR SCReening (supplementary service)
SCR Selective Call Rejection
SCR Selective Charge Recording
SCR Silicon Controlled Rectifier
SCR Standard Context Routing
SCR Static Conformance Requirement(s)
SCR Static Conformance Review
SCR Sustainable Cell Rate
SCR Sustained Cell Rate
SCR System Change Request
SCR System Clock Reference
SCR System Command Register
SCR System Control Register
SCRA Small Call Reacting Apparatus
SCRAC Selective Call Rejection Active/Inactive Status
SCRACC Selective Call Rejection Activate/Deactivate Access Codes
SCRB Selective Call Rejection Billing Records
SCRC SCCP Routing Control
SCRCAR Selective Call Rejection Call Attempts Rejected
SCRJ Selective Call Rejection
SCRLE Selective Call Rejection List Editing
SCRLEACC Selective Call Rejection List Editing Access Code
SCRN SCReeM
SCRNL Selective Call Rejection Number List
SCRNLS Selective Call Rejection Number List Size
SCRRC Selective Call Rejection Restricted Control
SCRRCAM Selective Call Rejection Restricted Control for Analog Member of EKTS
SCRT Selective Call Rejection Toggle
SCS Secondary Clear to Send
SCS Sequential Channel Search
SCS Service Consumer System
SCS Service Creation System
SCS Siemens Communications Systems
SCS Signal Collection System
SCS Silicon Controlled Switch
SCS Single Change Supplement
SCS Single Conversion System
SCS SNA Character String
SCS Software Control System
SCS Speed Call Short
SCS Speed Calling Short List
SCS Structured Connectivity Solution
SCS Subcomponent Specification
SCS Submarine Cable Systems Inc. (KDD)
SCS System Conformance Statement
SCSA Signal Computing System Architecture
SCSA Standard Consolidated Statistical Area
SCSI Small Computer System Interface
SCSI-2 Small Computer System Interface-2
SCSI-3 Small Computer System Interface-3
SCSI-FCP SCSI Fibre Channel Protocol
SCSM Service Control Function Call State Model
SCSP Server Cache Synchronization Protocol
SCSS Special Connection Special Service
SCSS Special Connection Special Services
SCT Single Chip Transceiver
SCT Subscriber Carrier Terminal
SCTA Santa Cruz Technology Alliance
SCTE Society of Cable Television Engineers
SCTO Stalled Call Timed Out
SCTR System Conformance Test Report (ISO 9646)
SCTR System Control Register
SCU Service Circuit Unit
SCU Service Control Unit
SCU Signaling Channel User
SCU Speed Call Universal
SCU Speed Call User
SCU Speed Calling Universal
SCU Speed Calling User
SCU SRU Control Unit
SCU Subscriber Channel Unit
SCU System-Control signal unit
SCUAF Service Control User Access Function
SCUAF Service Control User Agent Function
SCV Section Coding Violation(s)
SCVFT Single Channel Voice Frequency Telegraphy
SCW Selective Call Waiting
SCW Setup Computer Wizard
SCWID Spontaneous Call Waiting Identification
SD ISO country code for Democratic Republic of the Sudan
SD Schematic Diagram
SD Schematic Drawing
SD Scroll Down
SD Secure Descriptor (Windows)
SD Send Data
SD Send Digits
SD Sequenced Data
SD Sequential Disk
SD Service Data
SD Service Desk
SD Service Directory
SD Service Disruption
SD Service Distribution
SD Signal Degrade
SD Signal Distribution
SD Signal Distributor
SD Single Density
SD Single Destinational
SD Single Digit
SD Software Development
SD Software Distributor
SD Speech Detector
SD Standard Deviation
SD Start Delimiter
SD Starting Delimiter
SD State Dependent
SD Static Data
SD Station Detail Records
SD Storage Device
SD Structural Diagram
SD Structured Design
SD Super Density
SD Super Disk
SD Switching Delay
SD U.S. postal code for South Dakota
S-D Signal-to-Distortion
SDA SCSI Disk Array
SDA Session Distribution Algorithm
SDA Single Digit Absorbing
SDA Source and Detector Assembly
SDA Swappable Data Area
SDA Synchronous Data Adapter
SDA System Design Authority
SDAI Standard Data Access Interface
SDB Services Data Base
SDB Set Data Block
SDB Supplemental Data Block
SDB Switched Digital Broadcast
sdb Symbolic Debugger
SDBAS Switched Digital Broadband Access System
SDC Server Display Control
SDC Subsequent Digit Collection
SDC Switched Digital Capability
SDC Syntax and Data Checking
SDCC Section DCC
SDCCH Stand-alone Dedicated Control CHannel
SDCCH/4 Stand-alone Dedicated Control CHannel/4
SDCCH/8 Stand-alone Dedicated Control CHannel/8
SDCP Service Design Capture Process
SDCR Supplemental Digit Collection Resource
SDCS Satellite Digital Communication System
SDCU Satellite Delay Compensation Unit
SDD Single Digit Dialing
SDD Software Design Document
SDD Space-Division Duplexing
SDD Speech Direction Detector
SDD System Dependent Data
SDDA Source Defined Display Area
SDDF Subscriber Digital Distributing Frame
SDDM System Dependent Data Management
SDDN Software Defined Data Network (AT&T)
SDDN-I Software Defined Data Network- International
SDE Software Development Environment
SDE Submission and Delivery Entity (X.400/MHS)
SDE Synchronization Distribution Expander
SDE System Development Environment
SDEA Supported Entity Absent
SDEE Supported Entity Exists
SDES Source Description
SDEV Smoothed Deviation
SDF Satellite Distribution Frame
SDF Service Data Function (IN term)
SDF Service Definition Function
SDF Signaling Data Function
SDF Standard Delay Format
SDF Structured Directory Format
SDF Structured Display File
SDF Supergroup Distribution Frame
SDF(M) Service Data Function (Mobile)
SDFP Service Data Function Point
SDFP Service Definition Function Point
SDFP Single Destination Freephone
SDG Service Design Guidelines
SDG Signal Distribution Group
SDG System Dependence Graph
SDGW Services Design Guidelines Workshop
SDH Static Data Handler
SDH Synchronous Digital Hierarchy
SDHT Selectively-Doped Heterojunction Transistor
SDI Sense Data Included Indicator
SDI Serial Data Interface
SDI Serial Data-link Interface
SDI serial digital interface
SDI Simplex DRU Interface
SDI Single Document Interface
SDI Software Developer's Interface
SDI Software Development Interface
SDI Strategic Defence Initiative (Star-War)
SDIF SGML Document Interchange Format
SDIP SCSI Device Interface Paddle Board
SDK Service Development Kit
SDK Software Developer's Kit
SDK Software Development Kit
SDKJ Software Development Kit for Java
SDL Functional Specification and Description Language
SDL Shielded Data Link
SDL Signaling Data Link
SDL Specification Description Language
SDL Stationary Data Link
SDL Systems Definition Language
SDL/GR SDL Graphical Representation
SDL/PR SDL Phrase Representation
SDLC SNA Data Link Control
SDLC Synchronous Data Link Control procedure,
SDLC Synchronous Data-Link Control (BOP, IBM Inc.)
SDLC Systems Development Life Cycle
SDM Service Domain Model
SDM Space Division Multiplex
SDM Space Division Multiplexer
SDM Space Division Multiplexing
SDM Subrate Data Multiplexing
SDM SuperNode Data Manager
SDM Surveillance Data Manager
SDM System Definition Manual
SDM/FT SDM Fault Tolerant
SDMA Serial Direct Memory Access
SDMA Space Division Multiple Access
SDMA Spatial-Division Multiple Access
SDMB Supernode Data Manager Billing
SDMC Single Destination Mass Calling
SDMF Single Data Message Format
SDMP Services Development Management Plan
SDMS SONET DMS
S-DMS SONET DMS
SDN Secondary Directory Number
SDN Shared Directory Number
SDN Software Defined Network
SDN Subscriber's Directory Number
SDN Switched Digital Network
SDN Synchronized Digital Network
SDN Synonym Directory Number
SDNA Set Up Directory Number Attributes
SDNC Status, Data, Not Consistent
SDNP Shared DNIC Numbering Plan
SDNS Secure Data Network System
SDNS Software Defined Network Service
SDNTX Selective Do Not Transmit
SDO Semantic Data Object
SDO Standards Development Organization
SDO Standards-Developing Organization
SDOC Selective Dynamic Overload Control
SDOC Software Document
SDP Scenario Design Paradigm
SDP Service Data Point (IN term)
SDP Session Description Protocol
SDP Signal Distribution Panel
SDP Simple Device Protocol
SDP Smart Dual Port Random Access Memory (Hitachi Inc.)
SDP Software Design Process
SDP Software Development Plan
SDP Software Development Process
SDP STP Datagram Protocol
SDP Supplementary Dial Plan
SDPC Single Destination Premium Charging
SDPO Sleeve Dial Pulse Originating
SDR Service Database Repository
SDR Speaker-Dependent Recognition
SDR Special Drawing Right
SDR Supplier Data Report
SDRAM Synchronous DRAM
SD-ROM Super-Density CD-ROM
SDRP Source Demand Routing Protocol
SDRSS Speaker-Dependent Recognition Service Supervisor
SDS Satellite Data System
SDS Schema/Subschema Definition Set
SDS SDH Data Subnetwork
SDS Signal Dependent Stereo (control)
SDS Software Development System
SDS Software Disk Striping
SDS Software Distribution Services
SDS Software Distribution Site
SDS Special Delivery Service
SDS Specific Digit String
SDS Speech Digit Signalling
SDS Static Data Store
SDS Station Detail Server
SDS Switched Digital Service
SDS System Developer's Seat
SDS1SO SWF-DS1 Selection Order
SDS3 Simplified DS3
SDSAF Switched Digital Services Applications Forum
SDSC Single Destination Split Charging
SDSL Single Line Digital Subscriber Line
SDSL Single-Pair Digital Subscriber Line
SDSL Symmetric Digital Subscriber Line
SDSL Symmetrical Digital Subscriber Line
SDSL Symmetrical Digital Subscriber Loop
SDSS Software Development Support System
SDT SDL Design Tool
SDT SDL Development Tool
SDT Serial Data Transfer
SDT Service Design Team
SDT Special Dial Tone
SDT Start Data Traffic
SDT Static Data Table
SDT Structured Data Transfer
SDT Stutter Dial Tone
SDTA Stepdown Transforner Adapter
SDTE Synchronous Data Terminal Equipment
SDTP Serial Data Transport Protocol
SDTP Services Designer Test Procedures
SDTP System Default Terminal Profile
SDTR Serial Data Transmitter/Receiver
SD-TSE State-Dependent Tentative Symbol Estimation
SDTV standard definition television
SDTV Standard-Definition Television
SDU Selection and Distribution Unit
SDU Service Data Unit
SDU Signal Distribution Unit
SDU SMDS Data Unit
SDU Software Distribution Utilities (HP)
SDU Source Data Unit
SDUN Single Destination Universal Number
SDUP System Default User Profile
SDV Switched Digital Video
SDVB Switched Digital Video Broadcast
SDVN Switched Digital Video Network
SDW Segment Descriptor Word
SDX Storage Data Acceleration
SDY Line Study
se Internet country code for Sweden
SE ISO country code for Kingdom of Sweden
SE SCSI/Ethernet
SE SCSI/Ethernet Adaptor
SE Segment End
SE Sending Entity
SE SErial call (supplementary service)
SE Service Element
SE Session Exchange message
SE Shared Explicit
SE Signalling Entity
SE Significant Event
SE Simple Element
SE Single-Ended
SE Software Engineering
SE Source Explorer
SE Southeast
SE Spectrum Engineering (CEPT)
SE Standard Edition
SE State Event
SE Status Enquiry
SE Structure Element
SE Suboption End
SE Support Entity
SE Switch Element
SE Switching Element
SE System Engineer
SE System Enhanced
SE System Enhancement
SE Systems Engineering
S-E Signal-to-Echo
SE1 SCSI/Ethernet, Type 1
SEA Society for Electronic Access
SEA Standard Extended Attribute
SEAC Signaling, Engineering, and Administration Center
SEAL Simple and Efficient Adaptation Layer
SEAL Software Engineering Assurance Laboratory
SEALCUR Sealing Current
SEAN Signaling Entity for ATM Networks
SEAS Signaling Engineering and Administration System
SEB System Engineering Bulletin
SEC SDH Equipment Clock
sec Second
SEC Secondary
SEC Security
SEC Security Code
SEC Security Screening
SEC Service Evaluation Center
SEC Service Execution Component
SeC Session Control
SEC Single Error Correction
SEC Single-Edge Connect
SEC Single-Edge Contact
SEC Single-Ended Connection
SEC Software Engineering Center
SEC Switching Equipment Congestion message
SEC Switching Equipment Congestion signal
SEC Synchronous Equipment Clock
SECAB Small Exchange Carrier Access Billing
SECAM Sequential Chrominance and Memory
SECAM Sequential Coleur Avec Memoire
SECAM Sequentiel Couleur Avec Memoire
SECAM SequentiellE Couleur Avec Memoire (French analogue TV system)
SECB Severely Errored Cell Block
SECBR Severely Errored Cell Block Ratio
SECO Secondary Engine CutOff
SECT Section
SECT Sectional Center
SECT Service Evaluation Circuit
SECU Security
SED SEDOS ESTELLE Demonstrator
SED Service Element Design
SED Stream Editor
SED Surface-Conduction Emitter Display
SED Systems Engineering Division
SEDOS Software Environment for the Design of Open distributed Systems
SEE Service de l'Energie de l'Etat
SEE Service Extension Element
SEE Software Engineering Environment
SEE Systems Equipment Engineer
SEED Self Electro-optic Effect Device (IC)
SEER System Event and Error Reports
SEF Severely Errored Frame
SEF Support Entity Function
SEFL Single-End Fault Locating
SEFS Severeley Errored Frame Seconds
SEG Segment
SEG Segmentation message
SEG Special-Effects Generator
SEGA Super Enhanced Graphic Adapter (PC)
SEGCT Segment Coverage Tool
SEH Structured Exception Handling
SEI Service Evaluation Interface
SEI Software Engineering Institute
SEK Svenska Elektriska Kommissionen
SEK Svenska Elektrotekniska Kommissionen
SEL Alcatel (D)
SEL Selector
SEL Standard Electrik Lorenz
SEL Surface-Emitting Laser
SELCAL SELective CALling (radio)
SELCALL SELective CALLing
SELD Service Element Level Design
SELP Sum-Excited Linear Prediction
SELV Safety Extra Low Voltage
SEM Scanning Electron Microscope
SEM Scanning Electron Microscopy
SeM Security Management
SEM Select Edit Extent Mode
SEM Service Element Design Model
SEM Service Extension Manager
SEM Standard Electronic Module
SEM Station Engineering Manual
SEM Super Element Manager
SEMF Synchronous Equipment Management Function
SEMI Semiconductor Equipment and Materials International
SEMKO Swedish Institute for Testing and Approval of Electrical Equipment (S)
SEMS Switching Element Management System
SEN Service Netze (Deutsche Telekom organization for network configuration)
SENDDD Send Dialed Digits
SENDTD Send Translated Digits
SEP SEParation
SEP SEParation character
SEP Sequential Exchange Protocol
SEP Service Evaluation Program
SEP Service Execution Platform
SEP Service Extension Point
SEP Signaling End Point
SEPG Software Engineering Process Group
SEPP Secure Electronic Payment Process
SEPP Secure Electronic Payment Protocol
SEPT Systemexterne Pruftechnik (External System Test Technology)
SEPT Systemunabhangige Externe Pruftechnik fur Telefonanschlusse
(system independent external test equipment for lines)
SEQ Sequence Number
SEQ Sequencer
SEQ Support Equipment
SEQNO Sequence Number
SER Attendant Console Serial Calling
SER Schedule Efficiency Ratio
SER Serial Mode
SER Series Completion
SER Service Element Reference
SER Service Event Registration
SER Soft Error Rate
SER Switch Event Record
SER Symbol Error Rate
SERC Science and Engineering Research Council
SERC Serial Calling
SERDN Series Completion Forwarding Directory Number
SERTYP Series Completion Hunting Type
SERV Service Base
SERV Service message
SERV ACK Service Acknowledge message
SERVORD Service Order System
SES Satellite Earth Station
SES Satellite Earth Stations and Systems (ETSI TC)
SES Scientific and Engineering Software
SES Service Evaluation System
SES Severely Errored Second(s)
SES Ship Earth Station
SES Single-Ended Supervision
SES Societe Europeenne des Satellites
SES Source End Station
SES Source End System
SES Special Exchange Service
SESAME Subscriber Enhanced Services Made Easy
SESC Software Engineering Standards Committee
SESD Severely Errored Seconds Daily Threshold
SESD Software Engineering Systems Division (Hewlett Packard)
SESE Security Exchange Service Element
SESH Severely Errored Seconds Hourly Threshold
SESKO Finnish Electrotechnical Standards Associatiom
SESR Severely Errored Second Ratio
SESS Session
SET Satellites Europeens de Telecommunication (CEPT)
SET Secure Electronic Transactions
SET Secure Encryption Transaction
SET Secure Exchange Transaction
SET Single-Electron Transistor
SET Software Engineering Technology
SET Software-Emulated Terminal
SET Standard Exchange Transfer
SET System Emulation Testing
SETI Search for Extra-Terrestrial Intelligence
SETM British Standard Method for Specifying Electronic Typographic Markup
SETPH Set Packet Handler X.25 Service Parameters
SETS Selected Executable Test Suite
SETUP Setup message
SETUP ACK Setup Acknowledge message
SEU Signal Extraction Unit
SEU Single-Event Upset (Radiation Hardened IC, Military Electronics)
SEU Source Entry Utility
SEU Systems Engineering University
SEV Schweizerischer Elektrotechnischer Verein (CH)
SEVM Switching Element Virtual Machine
SEx SCSI/Ethernet, Type x
SF Security Function
SF Select Facility point in call
SF Select Frequency
SF Service Feature
SF Services and Facilities (CEPT)
SF Sign Flag
SF Signal Fail
SF Single Frequency
SF Stack Fault
SF Status Field
SF Store File
SF Subscriber Feature
SF Super Frame
SF Super Frames
SF Superframe
SF/X Special Effects
SFB Sir Francis Bacon
SFB Standard Functional Block
SFBM Shared Frame Buffer Memory
SFC Single Functional Call
SFC Source Function Code
SFC Switch Fabric Card
SFD simple formattable document (X.400/MHS)
SFD Start Frame Delimiter
SFD Start of Frame Delimiter
SFDEV Store File Device
SFDEV System File Device
SFDL Structure and Function Description Language
SFDR Spurious Free Dynamic Range
SFE Switch Front End
SFET Synchronous Frequency Encoding Technique
SFF Small Forms Factors
SFF Switch Feature Forum
SFG Simulated Facilities Group
SFG Simulated Facility Group
SFG Simulated Facility Groups
SFG/C-I ISDN Simulated Facility Group for Circuit-Mode Calls
SFG/P-I ISDN Simulated Facility Group for Packet-Mode Calls
SFGBC Simulated Facilities Group Bearer Capabilities
SFGF Sliding-Frequency, Guiding Filter
SFG-I ISDN Simulated Facility Group
SFGNLC Simulated Facilities Group Packet Mode, Number of Logical Channels
SFGPM Simulated Facility Group, Packet Mode
SFGTC Simulated Facilities Group for Packet Mode, Throughput Class
SFGTR Simulated Facilities Group for Packet Mode, Traffic Rate
SFGTYP Simulated Facilities Group Type
SFH Slow Frequency Hopping
SFI MDII: Signaling Network Failure, Incoming Call
SFI Secondary File Index
SFI Service Feature Indicator
SFIB Syndicat Fabricants ensembles Informatique/Bureautique
SFIP Shadow Fetched Instruction Pointer
SFIT Software Fault Insertion Testing
SFL Sequential Forwarding Limit
SFL Symbolic Flowchart Language
SFM Switch Fabric Module
SFN Single-Frequency Network
SFNOI Second Further Notice of Inquiry
SFO MDII: Signaling Network Failure, Outgoing Call
SFP Super Frame Pattern
SFPL Source Follower Pull-Up Logic
SFR Single Frequency Reuse
SFRL Semi-Fully Restricted Line
SFRZ Shadow Freeze
Sfrz Shadow-Freeze
SFS Shadowed File System
SFS Single-Frequency Signaling
SFS Special Facility Selection
SFS Start of Frame Sequence
SFS Suomen Finland Standardisoimislutto (FL institute)
SFT Secure File Transfer
SFT System Fault Tolerance
SFT System Fault Tolerant
SFT System File Table
SFTP Simple File Transfer Protocol (TCP/IP-DoD)
SFTSS Standard Frequency and Time Signal Satellite
SFU Special Function Unit
SFU Status Fill-In Unit
SFU Store and Forward Unit
SFVN Secure Fast Virtual Networking
SFW Service Framework
SFX Sound Effects
SFX Special Effects
SFX Suffix
SG ISO country code for Republic of Singapore
SG Secretariat General (CENELEC)
SG Signal Ground
SG Signaling Ground
SG Specific Gravity
SG Steering Group
SG Stop-Go
SG Study Group (ITU-T)
SG Supergroup
SG SuperGroup
SGA Software Group Blocking Acknowledgment Signal
SGB Software Generated Group Blocking Message
SGB Software Group Blocking Signal
SGC SCSI-3 Graphics Commands
SGC Standard Graphics Connect
SGC Supergroup Connector
SGD Signaling Ground
SGDF Supergroup Distribution Frame
SGEO Supported Entity Outage
SGFS Special Group on Functional Standardization
SGI Segment Information
SGI Silicon Graphics Inc.
SGI Subgroup Identifier
SGID Set Group ID
SGM Segmentation Message
SGM SeGmentation Message
SGML Standard Generalized Markup Language
SGML Standard Generalized Markup Language
SGMP Simple Gateway Monitoring Protocol (TCP/IP-DoD)
SGNT Special Grade Network Trunk
SGO Silicon Graphics Object
SGR Select Graphic Rendition
SGR Set Graphic Rendition
SGRAM Synchronous Graphics RAM
SGS Software Generation System
SGSN Serving GSN
SGT SeGment Table
SGTE SuperGroup Translating Equipment
SGTYP Simulated Facility Group Type
SGU Software Generated Group Unblocking Message
SGU Software Group Unblocking Signal
SGW Service Gateway
sh Bourne Shell
SH ISO country code for Saint Helena
SH Send Hub
SH Server Host
SH Session Header
sh Shell
SH Short Haul
SH Start-of-Heading
SH Stop Hunt
SH Supervisor Host
SH Switch Hook
SH1 Shared Speed Calling, 1-Digit
SH1CC Shared Speed Calling, 1-Digit, Customer Controlled
SH2 Shared Speed Calling, 2-Digit
SH2CC Shared Speed Calling, 2-Digit, Customer Controlled
SHA SDM High Availability
SHA Secure Hash Algorithm
shab Show Acronyms/Abbreviations
SHAPE Sub-Half Micron CMOS Process for European Users
SHARP Self-Healing Alternate Route Protection
SHASET Stop Hunt Application Set
SHB Sharing with Bias
SHCB Simple Hybrid Channel Borrowing
SHCT Stop Hunt Control Terminals
SHCTANL Stop Hunt Control Per Analog Terminal
SHCTTSP Stop Hunt Control Terminal Per TSP
SHD Super-High-Definition
SHEFA Shetland Islands-Faero Islands submarine cable
SHF Super High Frequency (3...30 GHz)
SHFWSC Switch Hook Flash With Specified Code
SHG Segmented HyperGraphic
SHG-I ISDN Hunting Subgroup
SHIC Software/Hardware Inventory Collector
SHK Stop Hunt Key
SHKAM Stop Hunt Key for Analog Member of EKTS
SHKPT Stop Hunt Key Point
SHKPTAM Stop Hunt Key Point for Analog Member of EKTS
SHLR Standalone Home Location Register
SHM Shared Memory Extension to X Window System
SHM short hold mode (SNA)
SHM/MPS Short Hold Mode/Multiple Port Sharing (OSI-SNA)
SHN Self-Healing Network
SHO Showtime
SHO Soft Handover
SHOE Simple HTML Ontology Extensions
SHOT Selective Handover for Traffic Balance
SHR Self-Healing Ring
SHR Shared
SHR Shared Historical Record
SHR Shared Layer
SHS Secure Hash Standard
SHS Select Horizontal Spacing
SHS1 Stop Hunt Set 1
SHS1D Stop Hunt Set 1 CMD
SHS1V Stop Hunt Set 1 VI
SHS2 Stop Hunt Set 2
SHS2D Stop Hunt Set 2 CMD
SHS2V Stop Hunt Set 2 VI
SHS3 Stop Hunt Set 3
SHS3D Stop Hunt Set 3 CMD
SHS3V Stop Hunt Set 3 VI
SHS4 Stop Hunt Set 4
SHS4D Stop Hunt Set 4 CMD
SHS4V Stop Hunt Set 4 VI
SHTTP Secure Hypertext Transfer Protocol
S-HTTP Secure Hypertext Transfer Protocol
SHU Stop Hunt
SHV Standard High-Volume
SI International System of Units
SI ISO country code for Slovenia
SI Screening Indentification
SI Screening Indicator
SI Serial Interconnect
SI Service Identification
SI Service Indication
SI Service Indicator
SI Service Information
SI Service Initiation
SI Service Interworking
SI Session Protocol Data Unit Identifier
SI Setup Information
SI Shift In
SI Signaling Rate Indicator
Si Silicon
SI Single Inheritance
SI Software Indicator
SI Software Integration
SI Source Index
SI SPDU Identifier
SI Special Instruction
SI Speech Interpolation
SI Standard Interface
SI State Independent
SI Statutory Instrument (UK legislation)
SI Storage-Immediate
SI Subscriber Identification
SI Subsystem Interface
SI superimpose
SI Supplementary Information (SIA)
SI Synchronization Information
SI System Index
SI System Information
SI System Integrator
SI System Integrity
SI système international d'unités, International Measuring System (metric)
SI Systems Integrator
SI/OC Serial Input/Output Channel
SI0 Sequenced Information 0
SI1 Sequenced Information 1
SIA Semiconductor Industry Association
SIA Serial Interface Adapter
SIA Service Interface Area
SIA Special Intercept Announcement
SIA Supplementary Information A
SIABLK Special Intercept Announcement- Blocked Calls
SIAF Service Indicator Associated Field
SIA-I ISDN Special Intercept Announcements
SIANC Special Intercept Announcement- Incoming Calls
SI-ATMR Switch-Interconnected ATMR
SIAUDF Special Intercept Announcement- Undefined Code
SIB Scale, Index, Base
SIB Screen Image Buffer
SIB Service-Independent Block
SIB Service-Independent Building Block
SIB Status Indication "Busy"
SIB System Integration Block
SIBB Service Independent Building Block
SIBCC SIB Configuration Control
SIBD SIB Distribution
SIBH Semi-Insulated Buried Heterostructure
SIC Semantic Integrity Constraint
SIC Service Identification Code
SIC Service Indicator Code
SIC Service Interaction Context
SiC Silicone Carbide
SIC S-Interface Circuit
SIC Specific Inductive Capacity (Dielectric Constant)
SIC Standard Implementations Committee
SIC Station Identification Code
SIC System Information Channel
S-ICI SONET Inter-Carrier Interface
SICL Standard Instrument Control Library
SICMS Semantic Integrity Constraints Management Services
SICS Swedish Institute of Computer Science
SID SCCS Identification
SID Secure ID
SID Security Identifier
SID Segment Identifier
SID Sensor Identification
SID Service Identification
SID Service Identifier
SID Service Instance Data
SID Service Instantiation Denial
SID Session Identifier
SID Signaling Identifier
SID Silence Descriptor
SID Silence Information Descriptor
SID Silence Insertion Descriptor
SID Source Identification Parameter
SID Source Identifier
SID Station Identification
SID Sudden Ionospheric Disturbance (Short Wave Propagation)
SID System Identification
SID System Identifier
SIDF System Independent Data Format
SIDM Single Integration Delta Modulation
SIDX Service Index
SIE Services Interaction Environment
SIE Signal Information Element
SIE Simple Imaging Extension
SIE Status Indication "Emergency Alignment"
SIF Signaling Information Field
SIF Signalling Information Field
SIF SONET Interoperability Forum
SIF Source Input Format
SIF Standard InterFace
SIF Status Information Frame
SIF Switch Interface
SIFS Short Interframe Space
SIFT Sender-Initiated File Transfer
SIFT Service Interaction Focus Team
SIFT Standard Information Filtering Tool
SIG Service Implementation Guide
SIG Signal
SIG SIGnal between LT and N
SIG SIGnal Information Element
SIG Signaling
SIG Signaling Channel
SIG SIGnature Element
SIG SMDS Interest Group
SIG Special Interest Group (NIST)
SIGCHI Special Interest Group on Computer-Human Interaction
SiGe Silicon-Germanium
SIGGRAPH Special Interest Group on computer GRAPHics
SIGINT Signal Intelligence
SIGMAN Signaling Manager
SII Server Instance Identifier
SII Standards Insitution of Israel
SII Static Invocation Interface
SIKO Sicherheitskonzept
SIKOS Simulation Kontinuierlicher Systeme (Siemens)
SIL Silence
SIL Single In-Line (IC Package)
SIL Solid Immersion Lens
SIL Speech Interference Level (Accoustics)
SILC Selective Incoming Load Control
SILEX Semiconductor-laser Inter-satellite Link EXperiment (ESA)
SIM Serial Interface Module
SIM Service Information Message
SIM Service Initiation Manager
SIM Set Initialization Mode (HDLC)
SIM Signaling Information Manager
SIM STEAM Issues Meeting
SIM Strategic Interface Management
SIM Subscriber Identification Module (GSM)
SIM Subscriber Identity Module
SIM Synchronous Interface Module
SIM System Integration Module
SIM System Integrity Monitor
SIM System Interface Module
SIMASK Serial Interface Mask Register
SIMBA SLIF-S & ITM Multiple Bridge Adapter
SIMD Single-Instruction Multiple Data (Pipeline Processors)
SIME Subscriber Installation Maintenance Entity
SIMM Signed Immediate Value
SIMM Single In-line Modular Memory (Package)
SIMODE Serial Interface Mode Register
SIMS Secondary Ion Mass Spectrometer
SIMS Synchronization, Interaction, and Maintenance System
SIMULA Simulation Language
SIN British Telecom Suppliers' Information Notes
SIN Service Indication
SIN Service Indicator
SIN Ships in the Night
SiN Silicon Nitride
SIN Status Indication "Normal Alignment"
SIN System Installation Number
SINAD SIgnal, Noise And Distortion (to noise and distortion ratio)
SIND Service Indication
SINPFEMO Signal Interference Noise Propagation Overall
SINPO Signal Interference Noise Propagation Overall
SINR Signal-to-Interference-plus-Noise Ratio
SIO Scientific or Industrial Organization
SIO Serial Input/Output
SIO Service Information Field
SIO Service Information Octet
SIO Start I/O
SIO Status Indication "Out of Alignment"
SIOA Status Indication "Out of Alignment"
SIOS Status Indication "Out of Service"
SIOV Silicon-Oxide Varistor
SIP SCSI Interface Processor
SIP SCSI-3 Interlocked Protocol
SIP Service Initiation Packet
SIP Session Initiation Protocol
SIP Simple Internet Protocol
SIP Single In-Line Package
SIP Single In-line Package
SIP SMDS Interface Protocol
SIP Societa Italiana per l'Esercizio delle Telecommunicazione, P.A.
SIP Streamlined Instruction Processor
SIP Subscriber Interface Protocol
SIP Supplementary Information Presentation (supplementary service)
SIPC Simply Interactive PC
SIPC SOS Inter-Process Communication
SIPO Serial-In Parallel-Out
SIPO Status Indication "Processor Outage"
SIPP Simple Internet Protocol Plus
SIPP Single In-Line Pin Package
SIR Selective Information Retrieval
SIR Serial Infrared
SIR Signal-to-Interference Ratio
SIR Software Integration and Release
SIR Speaker-Independent Recognition
SIR Submission Information Rate
SIR Surface Insulation Resistance
SIR Sustained Information Rate
SIRREQ Software Integration and Release Request
SIS Semiconductor/Isolator/Semiconductor (IC Technology)
SIS Sound-In-Synchronisation (Television)
SIS Southern Information Systems, Inc.
SIS Standardiseringskommissionen Institut Sverige (S)
SIS Structural Interaction Service
SIS Structure Information Store (OSI/VT/TOP)
SIS Structured Interaction Service
SIS Structured Interaction Services
SIS Structured Interaction System
SISD Single-Instruction Single Data
SISIR Singapore Institute of Standards and Industrial Research
SISO Serial-In Serial-Out
SISRIF Still Image, Sound and Related Information Format
SIT Self-Initializing Terminal
SIT Service Information Transport
SIT Shared Interoffice Trunk Trigger
SIT Source Information Translator
SIT Special Information Tone
SIT Static Induction Transistor
SIT System Integrity Testing
SITA Societe Internationale de Telecommunications Aeronautiques
SITA Societe Internationale Transport Aeronautiques
SITC Satellite International Television Center
SIT-CAS SIT Call Associated Signaling
SITE SSIT Intelligent Test Environment
SITPC Satellite International Television Program Center
SITPRO Simplification of International Trade Procedures (EDIFACT)
SITS Smalltalk ISDN Terminal Simulator
SITS Special Investigation Test Schedule (UK)
SI-TSE State-Independent Tentative Symbol Estimation
SIU Serial Interface Unit
SIU Slide-In Unit
SIU Subscriber Interface Unit
SIU System Integration Unit
SIW Service Interworking
SI-x Serial Interconnect-x
SJ ISO country code for Svalbard and Jan Mayen Islands
SJ Special Joint (ETSI)
SJF Shortest Job First
SJR Signal-to-Jamming Ratio
SK ISO country code for Slovakia
SK Postal code for Saskatchewan
SK SKip
SKC Session Key Changeover
SKCS Shared Key Cryptosystem
SKE Session Key Exchange
SKE Software Key Escrow
SKIL Spectrum Knowledge, Information and Learning
SKIP Simple Key Exchange for Internet Protocols
SKIP Simple Key Exchange Internet Protocol
SKIP Simple Key Interchange Protocol
SKU Stock Keeping Unit
SKU Stockkeeping Unit
SKY Skyline
SL ISO country code for Republic of Sierra Leone
SL Scenario Language
SL Screening List
SL Scroll Left
SL Search List (TETRA)
SL Secondary Language
SL Secretarial Line
SL Semi-Restricted Line
SL Send Leg
SL Service Layer
SL Session Layer (OSI)
SL Set Leader
sl Shared Library
SL Sign Language
SL Signaling Link
SL Single Location
SL SLave station
SL Smallest-Last
SL Special Link
SL Stack Limit
SL Stored Language
SL Stored Logic
SL Submarine Lightwave
SL Subscriber Line
SL Subscriber Loop
SL Suspended Line
SL&C Service Logic and Control
SL1 Stored Language I
SL-1 Stored Language I
SL-1 Stored Logic-1
SL-100 Stored Logic-100
SL2 Sublayer 2
SL3 Sublayer 3
SLA Semiconductor Laser Amplifier
SLA Service Level Agreement
SLA Signal Layer Adaptation
SLA Storage Logic Array (Chip, Cirrus Logic Inc.)
SLAC Subscriber Line Audio-processing Circuit
SLAN Secure Local Area Network
SLAP Subscriber Line Access Protocol
SLAR Side-Looking Airborne Radar
SLAT System Lineup and Test
SLB Segment Lookaside Buffer
SLBM Status, List, Below Minimum
SLBM Submarine Launched Ballistic Missile (Military)
SLBRI Single Line BRI
SLC Secured Logon Coordinator
SLC Signaling Link Code
SLC Simple Line Code
SLC Speech Link Connecting
SLC Speech Link Connector
SLC Submarine Laser Communications
SLC Subscriber Line Charge
SLC Subscriber Line Concentrator
SLC Subscriber Loop Carrier
SLC Subscriber Loop Concentrator
SLC Synchronous Line Carrier
SLCA Service Life Cycle Administration
SLCC Speech Link Connecting Concentrating
SLD Simultaneous Line Downtime
SLD Subscriber Line Data (Bus) (ISDN)
SLD Subscriber Line Device (Telecom.)
SLD Superluminescent Diode
SLD Symmetric Life Dependency
SLD System Level Design
SLDRAM Sync-Link DRAM
SLDS Single-Line Digital Service
SLE Screening List Editing
SLE Selective List Editing
SLE Single Line Environment
SLE Small Local Exchange
SLE Static Lightpath Establishment
SLEAC Screening List Editing Access Code
SLECID SLE Consecutive Invalid Digits
SLED Single Large Expensive Disk
SLEE Service Logic Execution Environment
SLEM Status, List, Exceed Maximum
SLETO SLE Timeouts
SLF Screening List Features
SLHR Service Logic Host Route
SLHRID Service Logic Host Route ID
SLI Service Logic Interpreter
SLI Session Level Interface
SLI Symmetric Life Independency
SL-I ISDN Semi-Restricted Line
SLIC Subscriber Line Interface Circuit
SLIF Serial Link Interface
SLIF-S Serial Link Interface-Slave
SLink Serial Link
SLINK Softools Advanced Linker
S-Link Serial Link
SLIP Serial Line Interface Protocol
SLIP Serial Line Internet Protocol
SLK Signaling Link
SLL Satellite Line Link
SLL Service Logic Language
SLL Smalltalk Link Library
SLLC Site Line Load Control
SLLM Satellite Logical Link Manager
SLLMD Satellite Logical Link Manager for DPNSS
SLM Service Level Management
SLM Signal Label Mismatch
SLM Signaling Link Management
SLM Single Longitudinal Mode
SLM Spatial Light Modulator
SLM Station Level Manager
SLM Subscriber Loop Multiplex
SLM System Load Module
SLMB Subscriber Line Module Broadband
SLMQW Strained-Layer Multiple Quantum Well
SLMS Selective Level Measuring Set
SLN Search List Number (TETRA)
SLNK SL-100 Link
SLNW SL-100 Network Control
SLO Semi-Restricted Originating Line
SLOC Single Location Resource Finder
SLOC Source Lines of Code
SLOF Single Location Object Finder
SLOG S-Record Load Generator
SLO-I ISDN Semi-Restricted Originating Line
SLOTS Simulated Load Operation Testing System
SLP Second Level Push-button
SLP Secure Local Proxy
SLP Service Location Protocol
SLP Service Logic Process
SLP Service Logic Processing Program
SLP Service Logic Program
SLP Signaling Link Processor
SLP single link procedure (CCITT)
SLP Station Line Protocol
SLP_ID Service Logic Program Identifier
SLPI Service Logic Processing Program Instance
SLPT Special Loop Treatment
SLPTAM Special Loop Treatment for Analog Member of EKTS
SLQ Single Line Queuing
SLR Send Loudness Rating
SLR Sending Loudness Rating
SLR Service Level Reporter (SNA)
SLR Strip-Line Resonator (Micro Waves)
SLR Synchronous Line Repeater
SLRH Handset Sending Loudness Rating
SLS SideLobe Suppression
SLS Signaling Link Selection
SLS Signalling Link Selection code
SLS Strained Layer Superlattice
SLS Synchronization Link Selection
SLSI Super Large-Scale Integration (IC)
SLT Arcada Backup Job File
SLT SchnurLoses Telefon
SLT Semi-Restricted Terminating Line
SLT Set Up Logical Terminal
SLT Signal Layer Trail Terminations
SLT Signaling Link Test
SLT SLoT sublayer
SLT Special Line Traffic
SLT Subscriber Line Terminal
SLT Subscriber Line Termination
SLT Switchman's Local Test
SLT Synchronous Line Terminal
SLT System Load Tape
SLT System-Level Transaction
SLTA Signaling Link Termination Adaptation
SLTA Signaling Link Test Acknowledgment message
SLTA Subscriber Loop Test Access
SLTANI Special Line Traffic Automatic Number Identification
SLTC Signaling Link Test Control
SLTD Subscriber Loop Test Digital
SLT-D Subscriber Loop Test Digital
SLTE Signaling Link Termination Equipment
SLTE Submarine Line Terminating Equipment
SLT-E Subscriber Loop Test Extended
SLT-I ISDN Semi-Restricted Terminating Line
SLTM Signaling Link Test Message
SLT-PDU SLot Protocol Data Unit
SLU Secondary Logical Unit
SLU Straight Line Undent
SLU Subscriber Line Unit
SLU Subscriber Line Usage
SLU Subscriber Line Usage Study
SLU System Load Unit
SLUS Subscriber Line Usage Study(ies)
SLVP Single Line Variety Package
SLW Saber Lan Workstation
SM ISO country code for Republic of San Marino
SM Schlaer Mellor
SM Security Management
SM SegMent sublayer
SM Senior Member
SM Service Management
SM Service Mark
SM Service Measurement
SM Service Mobility
SM Service Module
SM Service Monitoring
SM Session Manager
SM Set Manager
SM Set Mode
SM Shared Memory
SM Short Message
SM Signaling Manager
SM Signaling Message
SM Simulation Model
SM Single Mode (Fibre Optics)
SM Source Manager
SM Staff-Month
SM State Machine
SM Statistical Multiplexing
SM Stepper Motor
SM Store Manager
SM Streaming Mode
SM Subrate Module
SM Subsequence Mask
SM Surface Mount
SM Surface Mounted
SM Surface Mounting
SM Switching Module
SM System Management
SM System Manager
SM System Metrics
SM Systems Management
SM3 Simulation Model Three
SMA Search Mode Acquisition
SMA Shelf Management Agent
SMA Signaling Management Architecture
SMA SNA Management Architecture
SMA Source Managed Agreement
SMA Speaker, Microphone, Antenna
SMA Spectrum Management Agency
SMA Subscriber Module Access
SMA Subscriber Module AccessNode
SMA Subscriber-Carrier Module Access
SMA Surface Mounted Assembly
SMA Synchronous Multiplexer Add/Drop
SMA System Maintenance Active
SMA2 Subscriber-Carrier Module Access 2
SMAA Service Mapped Architecture Analysis
SMAAL Small Packet Multiplexed Asynchronous Transfer Mode Adaptation Layer
SMAD Subscriber Monitoring Activation/Deactivation
SMAE System(s) Management Application Entity
SMAF Service Management Access Function
SMAF Service Management Agent Function
SMAF Signaling Management Access Function
SMAP Service Management Agent Point
SMAP Signaling Management Application Process
SMAP System(s) Management Application Process
SMAPM Systems Management Application Protocol Machine
SMART Script Manager and Automated Regression Tester
SMART Self-Monitoring, Analysis, and Reporting Technology
SMART Software Metering and Resource Tracking
SMART Source Migration and Reporting Toolset
SMART Systems Measurement Analysis and Reporting Tool
SMARTRing Self-Healing Multi-Nodal Alternate Route Topology Ring
SMARTS System Management Arts
SMAS Service Management Application System
SMAS Service Management System
SMAS Switch Memory Administration Subsystem
SMAS Switched Maintenance Access System
SMASE System(s) Management Application Service Element
SMAT Sprint Mid Atlantic
SMATV Satellite Master Antenna Television
SMATV Satellite Master Antenna TV System
SMAUG Security Monitoring and Auditing of User Groups
SMB Server Message Block (Microsoft)
SMB Session Message Block
SMB Signaling Management Block
SMB Signaling Message Block
SMB SuperNode Multicomputing Base
SMB Switch Multicomputing Base
SMB System Main Bus
SMB System Message Block
SMC SCSI-3 Medium Changer Commands
SMC Senior Management Conference
SMC Serial Management Controller
SMC Service Management Center
SMC Service Monitoring Customization
SMC Site Management Center (CWAN-ATT)
SMC SONET Minimum Clock
SMC Standard Microsystems Corp.
SMC Status Monitoring Condition
SMC Subscriber and Maintenance Centre
SMC Surface Mounted Components
SMC Switch Maintenance Center
SMC Switching Module Control
SMD State Machine Data
SMD Storage Module Device
SMD Storage Module Drive (Peripheral Controller)
SMD Subscriber Modifiable Data
SMD Surface Mount Device
SMD Surface Mounted Device
SMD Surface-Mounted Device
SMDF Subscriber Main Distributing Frame
SMDI Simplified Message Desk Interface
SMDL Standard Music Description Language
SMDP Semi-Markov Decision Problem
SMDR Station Message Detail Recording
SMDR Station Message Details Record
SMDR Storage Management Data Requester
SMDR-P Station Message Detail Recording to Premises
SMDS Switched Multimegabit Data Service
SMDS Switched Multimegabit Data System
SMDS Switched Multimegabit Digital Service
SME Security Message Exchange
SME Short Message Entity
SME Signaling Management Environment
SME SL Mediation Equipment
SME Small to Medium Enterprise(s)
SME Small-to-Medium Size Enterprise
SME Society of Manufacturing Engineers
SME Subject Matter Expert
SME Subscriber Module Equipment
SME System Management Entity
SMECB SME Control Block
SMED Smart Editor
SMEDB SME Data Block
SMF Security Management Facility
SMF Selective Multicast capable Flag
SMF Service Management Function
SMF Shared-Memory Fabric
SMF Signaling Management Function
SMF Simple Message Format
SMF Single-Mode Fiber
SMF Software Maintenance Function
SMF Status Monitoring Fail Event
SMF Systems Management Function
SMFA Systems Management Functional Area
SMFI Shared Memory and Fabric Interface
SMFS Simple-Minded File System
SMFU Systems Management Functional Unit
SMFUD Systems Management Functional Unit Deployment
SMG Service Management
SMG Special Mobile Group (ETSI TC)
SMG Super Master Group
SMGEN Sort/Merge GENeration
SMH Signaling Message Handling
SMI Sequential Minimum Interference
SMI Service Management Interaction
SMI Structure of Managed Information
SMI Structure of Management Information
SMI Subsystem Multiplicity Indicator
SMI Switched-Mode Inverter (Power Supply)
SMI System Management Interrupt
SMIB Security Management Information Base (X.800)
SMIC Sales and Marketing Information Center
SMIEEE Senior Member of Institute of Electrical and Electronics Engineers, Inc. (US)
SMIL Synchronized Multimedia Integration Language
SMIP Strategic Management Information Plan
SMIS Specific Management Information-passing Service (OSI)
SMIT System Management Interface Tool
SMK Shared Management Knowledge
SML Service Management Layer
SML Sun Microsystems Laboratories
SMLE Small-Medium Local Exchange
SMM Service Management Module
SMM Service Mobility Manager
SMM Start of Manual Message
SMM System Management Mode
SMMC System Maintenance Monitor Console
SMMCI System Manager/Managed Component Interface
SMMR Scanning Multichannel Microwave Radiometer
SMMT Society of Motor Manufacturers and Traders
SMN SONET/SDH Management Network
SMN System Management Network
SMOAC Shared Memory Ownership and Access Control
SMP SCSA Messaging Protocol
SMP Service Management Point
SMP Service Management Process
SMP Session Management Protocol
SMP Signaling Management Protocol
SMP Signalling Mediation Point
SMP Simple Management Protocol
SMP Software Maintenance Process
SMP software motion picture
SMP Standby Monitor Present
SMP Status Monitoring Pass event
SMP Surveillance Management Program
SMP Switching Module Processor
SMP Symmetric Multiprocessing
SMP Symmetric Multiprocessor
SMP Symmetrical Multiprocessing
SMP Symmetrical MultiProcessing
SMP Systems Management Protocol (BT)
SMP+ Signaling Management Protocol Plus
SM-PDU SegMent Protocol Data Unit
SMPS Switched-Mode Power Supply
SMPTE Society of Motion Picture and Television Engineers
SMPU Switching Module Processor Unit
SMPUR Subscriber Service Management Usage Report
SMQ Signaling Message Queue
SMR Service Management Reporter
SMR Session Message Receiver
SMR Signal-to-Mask Ratio
SMR Software Modification Request
SMR Special Mobile Radio
SMR Specialized Mobile Radio
SMR Split Mode Register
SMR Subscriber Carrier Module-100 Rural
SMR Subscriber Module, Remote
SMRG Service Measurements Report Generator
SMRP Simple Multicast Routing Protocol
SMRS Specialized Mobile Radio Services
SMRT Single Message Rate Timing
SMS Satellite Multiservice System (EUTELSAT)
SMS SDH Management Subnetwork
SMS Service Management System (Nokia)
SMS Services Message Switch
SMS Set Management Services
SMS Shelf Management System
SMS Short Message Service
SMS Short Message Services
SMS Software Management System
SMS Special Multicast Server
SMS Speech Mail System
SMS Station Management System
SMS Storage Management Services
SMS Subscriber Carrier Module SLC-96
SMS Subscriber Management System
SMS Subscriber Management Systems
SMS Subsystem Management Service
SMS Switch Message Subsystem
SMS System Management Service
SMS System Management Software
SMS Systems Management Server
SMS/PP Short Message Service/Point-to-Point
SMSA Standard Metropolitan Statistical Area
SMSC Short Message Service Center
SM-SC Short Message Service Center
SMSCB Short Message Service Cell Broadcast
SMS-CB Cell Broadcast Short Message Service
SMSCH Short Message Service Channel
SMSI System Management Service Interface
SMSL Standard Multimedia Scripting Language
SMS-MO/PP Mobile Originating Short Message Service, Point to Point
SMS-MT/PP Mobile Terminating Short Message Service, Point to Point
SMSR Side-Mode Suppression Ratio
SMSR Subscriber Carrier Module SLC-96 Remote
SMS-R Subscriber Carrier Module Remote
SMSS Software Manufacturing Support System
SMS-SC Short Message Service- Service Centre
Smt Short Message Terminal
SMT Station Management
SMT Station Management Layer (FDDI)
SMT Surface-Mounted Technology
SMTP Simple Mail Transfer Protocol (TCP/IP-DoD)
SMTP Simple Mail Transport Protocol
SM-TP Short Message Transport Protocol
SMU Scaled Measurement Unit
SMU signal monitoring unit
SMU Signaling Message User
SMU Statistical Multiplex Unit
SMU Subscriber Carrier Module Urban
SMU Systems Management Utilities (IBM)
SMUX Service Multiplexer
SMUX SNMP Multiplexing Protocol
SMV Self Monitoring Variable
SMVBR Statistically Multiplexed VBR
SMVT Scroll Mode VT
SMX Switch Matrix Module
SMXU Service Message Transfer Unit
SN ISO country code for Republic of Senegal
SN Segment Number
SN Sequence Number
SN Serial Number
SN Service Node
SN Service Number
SN Services Node
SN Stock Number
SN Subnetwork
SN Subnetwork Layer Service
SN Subscriber Number
SN SuperNode
SN Switching Network
S-N Signal-to-Noise
SN&M Service Negotiation and Management
SN/IP Service Node/Intelligent Peripheral
SNA Short Number Addressing (TETRA)
SNA System Network Architecture (IBM Inc.)
SNA/ACF SNA Advanced Communications Functions
SNA/MS SNA Management Services
SNAC Switching Network Analysis Center
SNACF SubNetwork Access Function (NL-OSI)
SNACP SNA Control Protocol
SNAcP Subnet Access Sublayer
SNACP SubNetwork Access Protocol (NL-OSI)
SNADS SNA Distribution Services
SNaN Signaling Not-a-Number
SNAP Single Number Access Plan
SNAP Standard Network Access Protocol
SNAP Subnetwork Access Point
SNAP SubNetwork Access Protocol
SNAP Subnetwork Attachment Point
SNAP SuperNode Access Protocol
SNAP Switch Network Analysis Program
SNAP Symbolic North Assembly Program
SNB Subscriber NumBer
SNC Subnetwork Connection
SNC Subnetwork Controller
SNC Synchronous Network Clock
SNCP Subnetwork Connection Protection
SN-CP Service Node Control Processor
SND Macintosh System Sounds File
SND Serial Number Checking Denied
SND Sound
SND Standard Normal Deviate
SND/ND (signal + noise + distortion)/(noise + distortion)
SNDCF Sub-Network Dependent Convergence Function
SNDCP Subnet Dependent Convergence Protocol
SNDCP Subnetwork-Dependent Convergence Protocol
SNE Service Notification Element
SNE Signaling Network Element
SNEE Services Node Execution Environment
SNEG Service Negotiation
SNET SONET Network
SNET Southern New England Telephone
SNET Synchronous Network
SNF Sequence Number Field
SNF Server Natural Format
SNF Server Normal Font
SNF Service Network Function
SNF System Noise Figure
SNG Satellite News Gathering
SNI Secure Network Interface
SNI Service Node Interface
SNI Signaling Networks Identifier
SNI SMDS Network Interface
SNI SNA Network Interconnect
SNI Standard Network Interface
SNI Subscriber-Network Interface
SNIAP SONET Network Interoperability Analysis Program
SNIC Subscriber Network Interface Circuit
SNICF SubNetwork Independent Convergence Function (NL)
SNICP Subnet Independent Convergence Protocol
SNICP SubNetwork Independent Convergence Protocol (NL)
SNIP Shadow Next Instruction Pointer
SNIP Signaling Network Identifier Parameter
SNIP SuperNode IP
SNIS Switching Networks Information Systems
S-NIU Single Dwelling Netwotk Interface Unit
SNL Signaling Network Layer
SNL Spectrum Network Layer
SNL SPM Network Layer
SNM Service Notification Manager
SNM Shiva Network Manager
SNM Signaling Network Management
SNM Signalling-Network-Management signal
SNM Standardized Network Management
SNM Subnetwork Manager
SNMC Service provider Network Management Computer
SNML Subnetwork Management Layer
SNMP Simple Network Management Protocol
SNMPD SNMP Daemon
SNMPng Next Generation SNMP
SNMPv1 Simple Network Management Protocol Version 1
SNMPv2 Simple Network Management Protocol Version 2
SNMPv3 Simple Network Management Protocol Version 3
SNN Server Network Node
SNO Send Notify Order
Snobol String-Oriented Symbolic Language
SNOTEL Snow Pack Telemetry Radio
SNP Sequence Number Protection
SNP Service Notification Point
SNP Suspended Non-Payment
SNPA Serving Numbering Plan Area
SNPA Subnetwork Point of Attachment
SNPC Single Network Packaged Core
SNQ Service Notification Queue
SNQP Simple Nomenclator Query Protocol
SNR Serial Number
SNR Signal-to-Noise Ratio
SNR Stored Number Redial
SNR Subsystem Normal Routing message
SNR Supernode Remote
SNRC Subsystem Normal Routing Control
SNRM Set Normal Response Mode (HDLC)
SNRME Set Normal Response Mode Extended (HDLC)
SNRS Signal-to-Noise Ratio Scalability
SNS Secondary Network Server
SNS Signaling Network Systems
SNS Simple Name Service
SNS Single Number Service
SNS Software Navigation System
SNSC Shanghai Nortel Semiconductor Corporation
SNSE SuperNode Size Enhanced
SNSE SuperNode System Enhanced
SNT System Noise Temperature
SNTP Simple Network Time Protocol
SNUC Semipermanent Nailed-Up Connection
SNUF SNA Upline Facility
SNV Schweizerische Normen Vereinigung (Swiss Association for Standardization)
SNVS Status, Not in Valid State
SNW Subnetwork
SNX STREAMS and TCP/IP Networking Executive
SO DDOC Section: Service Orders
SO ISO country code for Somali Democratic Republic (Somalia)
SO Satellite Office
SO Semantic Object classes
SO Send Only
SO Service Order
SO Serving Office
SO Shift Out
SO Signaling Office
SO Signoff
SO Slow to Operate
SO Small Outline
SO Space Operation
SO Stutter Tone Only
SO Summary Overflow
SO Suspend Origination
SO Switching Office
SOA Safe Operating Area
SOA Semiconductor Optical Amplifier
SOA Start of Address
SOA Start of Authority
SOA Suppress Outgoing Access
SOAC Service Order Analysis and Control
SOAR Safe Operating Area
SOAR Smalltalk On A RISC
SOB Statement of Boredom
SOC Service Observing Circuit
SOC Service Operation Center
SOC Software Optionality Control
SOC System Overload Control(s)
SOC System-on-a-Chip
SOCC Selective Origination Code Control
SOCC Serial Optical Channel Converter
SOCC SMS Originated Code Control
SOCC Suggested Optical Cable Code
SOCKS Sockets
SOCS Service Order Control System
SOCT Software Optionality Control Test
SOD Services On-Demand
SOD Stringing of Digits
SODD Static Office-Dependent Database
SODL Switch Object Definition Language
SOE Standard Operating Environment
SOF Specification of Functions
SOF Start of Frame
SOG Small-Outline Gull-wing
SOG Subsystem Out-of-Service Grant message
SOGITS Senior Officials Group for Information Technology Standardization
SOGT Senior Officials Group on Telecommunications (CEC)
SOH Section Overhead
SOH Start of Heading
SOHO Small Office/Home Office
SOI Silicon On Insulator (IC Technology)
SOI Start of Image
SOIC Small-Outline Integrated-Circuits (Package)
SOJ Small Outline J-bent package (IC)
SO-J Small Outline J-Lead
SOLAS Safety Of Life At Sea
SOLID Software Load Information Database
SOM S/DMS Operational Measurements
SOM Self-Organizing Map
SOM Shared Object Model
SOM Start of Message
SOM Supernode Operational Measurements
SOM System Object Model
SOM System Object Module
SON Service Order Number
SON Small Office Network
SONAD Speech Operated Noise Adjusting Device
SONAR SOund Navigation and Ranging
SONET Synchronous Optical Network
SONG Space, Oceanography, Navigation and Geodynamics
SOOO Subscriber Out of Order message
SOOS System Out-of-Service
SOP Service Order Processor
SOP Service Order Provisioning
SOP Small-Outline Package (IC)
SOP Standard Operating Procedure
SOP-P Signal Operations Platforms-Provisioning
SOR Start Of Record
SOR Statement of Requirements
SOR Station Origination Restriction
SOR Subsystem Out-of-Service Request message
SORC Station Origination Restrictions Controller
SORF Start Of Receive Frame
SORMF Start Of Receive MultiFrame
SORP Self-Organized Resuse Partitioning
SOS Service Order System
SOS Silicon-On-Sapphire (IC Technology)
SOS SMARTS Operations Server
SOS Space Operation Service
SOS Start of Scan
SOS Start of Selection message
SOS Support Operating System
SOSS Support of Operator Specific Services
SOST Software OID Status Table
SOST Special Operator Services Traffic
SOSTT Special Operator Services Traffic Trunk
SOT Small Office Termination
SOT Small-Outline Transistor (Package)
SOT Start Of Text
SOT Subscriber Originating Trunk
SOTF Start Of Transmit Frame
SOTMF Start Of Transmit MultiFrame
SOTS Service Observed, Traffic Sampled
SOVA Soft Output Viterbi Algorithm
SOW Statement of Work
SOX Sound Exchange
SP Security Protocol
SP Segment Priority
SP Semi-Public
SP Sent-Paid
SP Serial Port
SP Serial-to-Parallel
SP Service Pack
SP Service Participant
SP Service Position
SP Service Processor
SP Service Protection
SP Service Provider
SP Service Provisioning
SP Session Protocol
SP Shelf Processor
SP Short (radio) Path
SP Signal Present
SP Signal Processing
SP Signal Processor
SP Signaling Point
SP Signaling Processor
SP Signaling Profile
SP Singing Point
SP Single Pole
SP Single Purpose
SP Slave Present
SP SoftPhone
SP Software Package
SP Space
SP Spare
SP Special
SP Speech
SP Speech Processor
SP Spool
SP Stack Pointer
SP Status bit P
SP Stored Program
SP Subscriber Profile
SP Supervisor Privilege
SP Switch Profile
SP Switching Point
SP System Parameters
SP System Product
SP-1 Stored Program-1
SP3 Security Protocol for Network Layer Three
SPA Semi-Permanently Associated
SPA Service Package Application
SPA Session Participant Address
SPA Software Process Assessment
SPA Software Publishers Association
SPA Special Application
SPA Special Applications Armor
SPA Start of Protected Area
SPAc SPA Call Session
SPACE System Performance and Cellular Engineering
SPACH SMSCH, PCH, and ARCH Channels
SPAD Synchronous PAD
SPADE Single-Channel-Per-Carrier Pulse-Code-Modulation
Multiple AccessDemand Assignment Equipment
SPAG Standards Promotion and Application Group, S.A.
SPAMM Single Policy Acting on Multiple Models
SPAN Simple Protocol for ATM Network
SPAN System for Planning the Access Network
SPANS Simple Protocol for ATM Network Signaling
SPAP Shiva Password Authentication Protocol
SPAPH Semi-Permanent Access to Packet Handler
SPAPHDDN SPAPH Default DNs
SPAPHDN SPAPH Directory Numbers
SPARC Selectable Processor ARChitecture (Sun/Microsystems Inc. RISC)
SPAT Services Process and Architecture Team
SPAt SPA Terminal Endpoint
SPB Special Billing
SPBI Sub-Period Billing Interval
SPC SCSI-3 Primary Commands
SPC Secondary Point Code
SPC Semipermanent Connection
SPC Service Profile Configuration
SPC Service Protection Center
SPC Signal Processing Companion
SPC Signal Processing Component
SPC Signal Processor Companion
SPC Signaling Point Code
SPC Single Point Connection
SPC Software Publishing Corporation
SPC Special
SPC Speech Processing Control
SPC Split Charging Service
SPC Statistical Process Control
SPC Stored Program Control (PABX)
SPC Stored Program Controlled
SPC Subscriber Power Controller (ISDN)
SPC Suppress Preferential (CUG)
SPC-CMS Stored Program Control-Call Management System
SPC-DM Stored Program Control-Download Module
SPCF Service Point Command Facility (APPN-IBM)
SPCI Small Form-Factor PCI
S-PCN Satellite- Personal Communications Network
S-PCN Satellite Personal Communications Network
SPCRIT Specific Criterion
SPCRT SPC Report Type
SPCS Service POint Command Services (Net/Master, IBM)
SPCS SPC Status
SPCS Stored Program Control Switch(ing) (System)
SPCS Stored Program Control System
S-PCS Satellite-based Personal Communications System
SPD Sample Pulse Driver
SPD Semipermanent Data
SPD Signal Processing and Display
SPD Simplified Printer Description
SPD Software Process Development
SPD Spectral Power Distribution
SPD Structural Protocol Definition
SPD Surge Protective Device
SPDBT Single PilotDataBase Table
SPDL Standard Page Description Language
SPDT Single-Pole Double-Throw switch
SPDT Special Dial Tone
SPDU Session Protocol Data Unit
SPE Semi-Public Environment
SPE Service Provider Environment
SPE Synchronous Payload Envelope
SPE Synchronous Payload Environment
SPEC Service and Product Enhancement Code
SPEC Speech Predictive Coding
SPEC Speech Predictive Encoded Communication
SPEC Standard Performance Evaluation Corporation
SPEC System Performance Evaluation Corporation
SPECCONN Special Connections
SPECs Software Productivity thru Enhanced Communications
SPECS Specification and Programming Environment for Communications Software
SPECT Single Photon Emission Computed Tomography (Medical)
SPEED Streamlined Process Expiditing Engineering Deliverables
SPEG Still Picture Experts Group (ISO)
SPESS Stored Program Electronic Switching System
SPF Shortest Path First
SPF Structured Programming Facility
SPF System Performance Factor
SPFD Spectral Power Flux Density
SPG Signaling Processor Gateway
SPG Single Point Ground
SPGA Software Programmable-Gain Amplifier
SPGA Staggered Pin Grid Array
SPH Signal Processing Hardware
SPI SCSI-3 Parallel Interface
SPI Security Parameters Index
SPI Serial Peripheral Interface (Bus) (RCA/Motorola Inc.)
SPI Service Profile Identification
SPI Service Provider Identifier
SPI Service Provider Indicator
SPI Service Provider Interface
SPI Services Programming Interface
SPI SPACE Provisioning Interface
SPI Spacing Increment
SPI Speaker Identification
SPI Standard (electronic) Picture Interconnect (Siemens AG)
SPI Stream Programming Interface
SPI Subsequent Protocol Identifier
SPI Synchronous Physical Interface
SPI System Programmer's Interface
SPI Systems Programming Interface
SPICE Simulation Program with Integrated Circuits Emphasis
SPICE Software Process Improvement and Capability Determination
SPID Service Profile Identification
SPID Service Profile Identifier
SPID Service Provider Identification
SPIE International Society of Optical Engineering
SPIM Smalltalk Portable Imaging Model
SPIN Software Process Improvement Network
SPINE SPace Informatics NEtwork
SPIRIT Service Providers Information and Requirements for IT
SPITE Switching Processing Interface Telephone Event
SPKI Simple Public Key Infrastructure
SPKM Semi-Public Key Mechanism
SPL Service Provider Link
SPL Session Processing Level
SPL Software Parts List
SPL Sound Pressure Level
SPL Special
SPL Special Billing
SPL Speed Call Long
SPL Splice
SPL Split Charging
SPL Stored Procedure Language
SPL CLD Special Called Billing
SPL CLG Special Calling Billing
SPL/M Systems Programming Language for Microprocessors
S-plane Supervisory plane
SPLC Split Charging
SPM Self Phase Modulation
SPM Service Participant Manager
SPM Service Peripheral Module
SPM Service Profile Management
SPM Services Peripheral Module
SPM Session Protocol Machine (OSI-SL)
SPM Signaling Point Manager
SPM Signaling Processor Memory
SPM Software Process Modeling
SPM Software Programmer's Manual
SPM SONET Physical-layer Mapping
SPM Specialized Processing Module
SPM Spectrum Peripheral Module
SPM Subscriber Premises Meter
SPM Subscriber Private Metering
SPM Subscriber Profile Management
SPM Subscriber's Private Meter
SPM Subscription Parameter Management
SPM Supervisory Processor Module
SPM Switch Performance Monitoring
SPM Synergy Peripheral Module
SPM-B Service Profile Management- Basic Rate
SPMPC Supervisory Processor Module Paddle Card
SPMS Switch Performance Monitoring System
SPN Service Provider Network
SPN Signal Processing Node
SPN Signaling Parameter Negotiation
spn Signaling Parameter Negotiation
SPN Subscriber Premises Network
SPNB Some-Primary/No Backup
SPNP Support of Private Numbering Plan (supplementary service)
SPOC Single Point of Contact
SPOI Signaling Point of Interface
SPOOL Simultaneous Peripheral Operations On-Line
SPOT Service Pilot on TINA
SPOT Signaling Point of Termination
SPP Sequence Packet Protocol (XNS)
SPP Service Providing Point
SPP Service Provision Point
SPP Service Provisioning Platform
SPP Service Provisioning Point
SPP Signal Processing Package
SPP Single Process Purge
SPP Speech Processing Peripheral
SPP Station Programmable PIN
SPPAY Semi-Postpay Pay-Station
SPPS Semi-Postpay Pay-Station
SPR Send Priority and Route Digit
SPR Service Profile Reference
SPR Signaling Point With SCCP Relay Function
SPR Spare
SPR Special-Purpose Register
SPR Symmetrical Phase Recording
SPRC Signaling Process Control
SPRIG System for Placement and Routing using Interconnect Geometry
SPRING Shared Protection Ring
SPRING Subscriber Programmable Ringing
SPRINT Service Process Reduction of Interval Team
SPRINT Services Product Reduction of Interval
SPRINT Southern Pacific Railroad Internal Telecommunications
SPRITE Spectrum Peripheral Reusable Integrated Telecommunications Environment
SPROM Switched Programmable Read-Only Memory
SPS Samples Per Second
SPS Service Provider System
SPS Signal Processing for Storage
SPS Signalling Protocols and Switching (ETSI TC)
SPS Signalling, Protocols and Switching
SPS Software Process Sheets
SPS Software Product Specification
SPS Solar Power Satellite
SPS Speed Call Short
SPS Speed Calling Short
SPS Standby Power Supply
SPS State Processing Software
SPS Statistics Processing System
SPS String Process System
SPS System Performance Score
SPSB Some-Primary/Some-Backup
SPSS Statistical Package for the Social Sciences
SPST Single-Pole Single-Throw
SPST Single-Pole Single-Throw switch
SPT Sectors Per Track
SPT Self Paced Tutorial
SPT System Page Table
SPTeam Services Prototyping Team
SPTF Shortest Processing Time First
SPTM Service Processor Transition Module
SPTR Safe Data Pointer
SPTS Single Program Transport Stream
SPTV Still Picture Television
SPTY Single Party
SPU Serial Processing Unit
SPU Signalling Point Unknown message
SPU Speech Processing Unit
SPU Speed Call User
SPU Strategic Planning Unit (ITU)
SPU System Processing Unit
SPU System Processor Unit
SPV Semipermanente Verbindung (Semipermanent Connection)
spvb Service Profile Verification- Basic Rate
SPV-B Service Profile Verification- Basic Rate
SPVC Soft PVC
SPVP Soft PVP
SPW Signal Processing Workbench
SPW Signal Processing Worksystem
SPW Subscribers Private Network
SPWM Synchronized Pulse-Width Modulation
SPX Sequenced Packet Exchange (Novell)
SPX Service Processor with UNIX
SPyT Single-Party Testing
SQ Signal Quality
SQ SQuare
SQ Status bit Q
SQA Software Quality Assurance
SQAM Staggered Quadrature Amplitude Modulation
SQC Statistical Quality Control
SQCIF Sub QCIF
SQD Signal Quality Detector
SQE Signal Quality Error
SQEG Speech Quality Experts Group
SQET Signal Quality Error Test
SQFD Software Quality Function Deployment
SQFP Small Quad Flat Pack
SQH Sender Queue High
SQI Software Quality Improvement
SQI Supplier Quality Improvement
SQL Sender Queue Low
SQL Specified Quality Level
SQL Structured Query Language (Data Base Retrieval Language)
SQLQMF SQL Query Management Facility (IBM)
SQPR Software Quality Program Requirements
SQRM Software Quality Reference Manual
SQRT Square Root
SQT Site Qualification Test
SQuID Source Quench Introduced Delay
SQUID Superconducting QUantum Interference Device
SR ISO country code for Republic of Suriname
SR SCE Recovery
SR Scroll Right
SR Secondary Radar
SR Segment Register
SR Selective Ringing
SR Selective Routing
SR Semi-Restricted Line
SR Send Ready
SR Sender Report
SR Service Report
SR Service Request
SR Shift Register
SR Short Reach
SR Signaling Rate Selector
SR Signalling Rate bit
SR Single-Resolution
SR Slew Rate
SR Slow Release
SR Smalltalk Report (periodical)
SR Source Route
SR Source Routing
SR Space Research
SR Special Report
SR Status bit R
SR Status Register
SR Status Request
SR Storage Register
SR Storage to Register
SR String Range
SR Subrate
SR Symbolic Range
S-R System-to-Receiver optical power
SR0 Supervisor Storage Register 0
SR1 Supervisor Storage Register 1
SR10 Series 10 Processor Circuit Pack
SR2 Supervisor Storage Register 2
SR20 Series 20 Processor Circuit Pack
SR3 Supervisor Storage Register 3
SR30 Series 30 Processor Circuit Pack
SR40 Series 40 Processor Circuit Pack
SR50 BRISC Series 50 Processor Circuit Pack
SR512 Subrate DS-512
SR60 BRISC Series 60 Processor Circuit Pack
SR70 BRISC Series 70 Processor Circuit Pack
SRA Selective Routing Arrangement
SRA Service Reuse Architecture
SRA Single Rate Area
SRA Software Requirements Agreement
SRA Standby-Ready-Acknowledgement signal
SRA Status Request Acknowledge
SRA Suppressed Ringing Access
SRAC Strategic Resource Advisory Council
SRAM Shared RAM
SRAM Static RAM
SRAM Static Random Access Memory
SRAPI Speech Recognition API
SRASM Standard Relocatable Assembler
SRB Software Release Bulletin
SRB Source Route Bridging
SRB Switched Redundancy Billing
SRB Synchronisation Reference Burst
SRBP Synthetic Resin Bonded Paper (printed circuit board)
SRBX Spontaneous Report-By-Exception
SRC Search
SRC Semiconductor Research Corporation
SRC Shared Resources Computer
SRc Signalling Rate capability
SRC Software Repair Center
SRC Source
SRC Standard Recognition Circuit (television)
SRC Strategic Review Committee (ETSI)
SRC Subrate Controller
SRC System Recovery Controller
SRC6 ETSI Strategic Review Committee No. 6
SRCC Signaling Route Congestion Control
SRCC SONET Remote Cluster Controller
SRCC2 SONET Remote Cluster Controller 2
SRCF Subregional Control Facility
SRCT Signaling Route Set Congestion Test
SRD Secondary Receive Data
SRD Short Range Device
SRD Strategic Resource Development
SRDA S-Bus Receive Data
SRDB Selective Routing Database
SRDL Subrate Digital Loop
SRDM Subrate Data Multiplexer
SRDY Synchronous Ready
SRE Send Reference Equivalent
SRE Sending Reference Equivalent
SRE Signaling Range Extender
SRE Software Release Environment
SRE Software Reliability Engineering
SRE Standard for Robot Exclusion
SRE Standard for Robots Exclusion
SRE Surveillance Radar Equipment
SREJ Selective REJect (HDLC)
SRES Expected Subscriber Response
SRES Signed Response
SRES Signed RESponse (authentication)
Sres SourceRouteEndStation
SREX System Routine Exercise Controller
SRF Service Request Flag
SRF Service Request Form
SRF Service Resource Finder
SRF Service Resource Function
SRF Special Resource Function
SRF Specialized Resource Function
SRF Specifically Routed Frame
SRF Status Report Frame
SRFCI Service Resource Finder Command Interface
SRFO Sequential Routing with Flow Optimization
SRG Shift Register Generator
SRHR Service Resource Host Route
SRHRG Service Resource Host Route Group
SRI Send Routing Information
SRI Service-Request-Inhibit
SRI Signal Related Information
SRI SMDS Interface Protocol (SIP) Relay Interface
SRI SMDS Relay Interface
SRI Stanford Research Institute
SRI Subscriber Remote Interface
SRI Suspend/Resume Indicator(s)
SRI Suspend/Resume Information
SRL Shift Register Latch
SRL Silicon Reuse Library
SRL Singing Return Loss
SRL Software Restructuring Lab
SRL Stability Return Loss
SRL Structural Return Loss
SRLHI Singing Return Loss-High
SRLLO Singing Return Loss-Low
SRM Scalable Reliable Multicast
SRM SCE Release Management
SRM Security Reference Monitor
SRM Segment Review Meeting
SRM Self-Routing Module
SRM Send/Receive Mode
SRM Service Reference Model
SRM Service Requirements Model
SRM Service Requirements Modeling
SRM Session and Resource Manager
SRM Signaling Route Management
SRM Small Rack Mount
SRM Statistical Reliability Monitoring
SRM Stratified Reference Model
SRM Subsystem Relationship Model
SRMA Split-channel Reservation Multiple Access
SRME Specialized Resource Management Entity
SRMF Send and Receive Multifrequency
SRMF Send-Receive Multifrequency
SRMS Shuttle Remote Manipulator System
SRMTC Speech Recognition Maintenance Task
SRMU Subrate Multiplexer Unit
SRN Segment Release Notice
SRN Source Recepient Node (DIA)
SRP SCCP Relay Point
SRP Service Request Policy
SRP Signaling Relay Point
SRP Signaling Routing Point
SRP Simplified Retransmission Protocol
SRP Software Release Package
SRP Software Release Process
SRP Speech Recognition Processor
SRP Standard Rollout Package
SRP Standard Rollout Process
SRP STS Reorder and Protection
SRP Suggested Retail Price
SRP Supervisor Root Pointer Register
SRPI Server Requester Programming Interface (IBM)
SRPP System Reference Potential Plane
SRPT Status Report
SRQ Service Request
SRQ Status Request
SRQAC Software Reliability and Quality Acceptance Criteria
SRR Secondary Receiver Ready
SRR Serially Reusable Resource
SRR Short Range Radio
SRr Signalling Rate Request
SRR0 Machine Status Save/Restore Register 0
SRR1 Machine Status Save/Restore Register 1
SRS Secondary Request to Send
SRS Service Request Signal
SRS Shared Registry System
SRS Signaling Route Set
SRS Software Requirements Specification
SRS Sound Retrieval System
SRS Space Research Service
SRS Standard Receive Side
SRS Standard Repair System
SRS Statutory Reporting Structure
SRS Sub-Rating Scheme
SRS Subscriber Recording System
SRSC SONET Remote Switching Center
SRSC Streamlined Remote Switching Centre
SRSCT Signaling Route Set Congestion Test
SRSF Session Resource Finder
SRSM Specialized Resource Function Call State Model
SRSP Session Root Service Proxy
SRSP Standard Radio System Plan
SRSS Speech Recognition Service Supervisor
SRST Signaling Route Set Test
SRT Self-Routing Tag
SRT Service Routing Transparent
SRT Short Range Telemetry
SRT Shortest Remaining Time
SRT Signaling Route Test
SRT Source Route Transparent
SRT Source Routing Transparent
SRT Station Ringer Test
SRT Station Ringing Transfer
SRT Subsystem Routing Status Test message
SRTAD1 Station Ringing Transfer Activate Destinations 1
SRTAD2 Station Ringing Transfer Activate Destinations 2
SRTAD3 Station Ringing Transfer Activate Destinations 3
SRTC Subrate Channel
SRTC Subsystem Routing Status Test Control
SRTD Silicon Release To Design
SRTD1 Station Ringing Transfer Destinations 1
SRTD1ACC SRT Destination Set 1 Access Codes
SRTD2 Station Ringing Transfer Destinations 2
SRTD2ACC SRT Destination Set 2 Access Codes
SRTD3 Station Ringing Transfer Destinatioons 3
SRTD3ACC SRT Destination Set 3 Access Codes
SRTDD1 Station Ringing Transfer Deactivate Destinations 1
SRTDD2 Station Ringing Transfer Deactivate Destinations 2
SRTDD3 Station Ringing Transfer Deactivate Destinations 3
SRTL Silicon Release To Layout
SRTM Status-Reporting Transfer Mode
SRTP Silicon Release To Prototype
SRTS Synchronous Residual Time Stamp
SRTT Smoothed Round-Trip Time
SRTTD1 Station Ringing Transfer Toggle Destinations 1
SRTTD1ACC SRT Destination Set 1 Toggle Access Code
SRTTD2 Station Ringing Transfer Toggle Destinations 2
SRTTD2ACC SRT Destination Set 2 Toggle Access Code
SRTTD3 Station Ringing Transfer Toggle Destinations 3
SRTTD3ACC SRT Destination Set 3 Toggle Acess Code
SRTV Silicon Release To Verification
SRU Shared Resource Unit
SRU Small Remote Unit
SRU Super Recording Unit
SRUC Split Reservation Upon Collision
SRV SCCP Routing Verification
SRV Service message
SRVA SCCP Routing Verification Acknowledgement
SRVR SCCP Routing Verification Result
SRVT SCCP Routing Verification Test
SS Sandbox Submit
SS Segmented Store
SS Select Standby
SS Sequence State
SS Service Supervisor
SS Service Switching
SS Session Service(s)
SS Signaling Server
SS Signaling System
SS Simple Session
SS Single Shift
SS Single Sided
SS Single Step
SS SMDS Switching System
SS Solid State
SS Space Segment
SS Space Switch
SS Special Service
SS Special Services
SS Spread Spectrum
SS Stack Segment
SS Static Style
SS Station to Station
SS Storage-Storage
SS Structured Storage
SS SubSystem (number)
SS Supervisory Signal
SS Supervisory System
SS Supplementary Service
SS Supplementary Service(s)
SS Switching System
SS System Simulator
SS System Stack
SS#5 Signaling System No. 5
SS#6 Signaling System No. 6
SS#7 Signaling System No. 7
SS/80 SubSet 1980
SS2 Single Shift 2
SS3 Single Shift 3
SS5 Signaling System No. 5
SS6 Signaling System No. 6
SS7 Signalling System No 7
SSA Serial Storage Architecture
SSA Signal Stability-Based Adaptive Routing
SSA Start of Selected Area
SSA Subsystem Allowed message
SSAC Station-Specific Authorization Code
SSAC Subsystem Allowed Control
SSAD Subscriber Service Activation/Deactivation
SSAP Session Service Access Point
SSAP Source Service Access Point (token ring)
SSA-PH Serial Storage Architecture Bus
SSAS Station Signaling and Announcement Subsystem
SSB Signaling State Block
SSB Single Sideband
SSB Software Status Bulletin
SSB Subscriber Busy
SSB Subscriber Busy message
SSB Subscriber-Busy signal
SSBAM Single Sideband Amplitude Modulation
SSBR Shadow Scoreboard Register
SSBSC Single Sideband Suppressed Carrier
SSC SCSI-3 Stream Commands
SSC Sector Switching Center
SSC Selective Signalling Code
SSC Single System City
SSC Small Subscriber Carrier
SSC SMP Service Creation
SSC Spare Storage Cabinet
SSC Special Service Center
SSC Specialized Systems Consultants, Inc.
SSC Station Selection Code
SSC Subscriber Security Control
SSC Subscriber Services Controller
SSC Subsystem Clock
SSC Supplementary Service Control string
SSCE Supplementary Service Control Entity
SSCF Service Specific Coordination Function
SSCF Service Specific Co-ordination Function
SS-CF Supplementary Service- Call Forwarding
SS-CFB Supplementary Service- Call Forwarding Busy
SS-CFNR Supplementary Service- Call Forwarding No Reply
SS-CFU Supplementary Service- Call Forwarding Unconditional
SS-CLIP Supplementary Service- Calling Line Identification Presentation
SS-CLIR Supplementary Service- Calling Line Identification Restriction
SS-CNIP Supplementary Service- Calling Name Identification Presentation
SS-CNIR Supplementary Service- Calling/Connected Name Identification Restriction
SS-COLP Supplementary Service- Calling Line Identification Presentation
SS-CONP Supplementary Service- Connected Name Identification Presentation
(supplementary service)
SSCOP Service Specified Connection Oriented Protocol
SSCP Service Switching and Control Point
SSCP System Service Control Point (SNA)
SSCS Service Specific Convergence Sublayer
SS-CT Supplementary Service- Call transfer
SSD Second Start Dial
SSD Secondary Send Data
SSD Service Subscription Directory
SSD Service Support Data
SSD Shared Secret Data
SSD Solid State Disk
SSD Source-Surface Distance
SSD Space Services Division
SSD Start of Stream Delimiter
SSD Static Sensitive Device
SSDA Synchronous Serial Data Adapter
SSDD Singe-Sided Double-Density (Disk)
SSDU Session Service Data Unit
SSE Service Subscription Element
SSE Static Service Element
SSE System Supervisory Equipment
SSE System Surveillance Equipment
S-SEED Symmetric SEED
SSES Small Smart Electronic Switch
SSF Same-Side-First
SSF Service Specific Functions
SSF Service Support Function
SSF Service Switching Function (IN term)
SSF Single Sided Frame
SSF Small Single Fibre
SSF Sub-Service Field
SSF SuperSonic Frequency
SSFC Sequential Single Frequency Code
SSFDC Solid State Floppy Disk Card
SSG Signaling Server Group
SSG Software Submissions Guidelines
SSG Subscriber Service Group
SSGR Supplier Support Generic Requirements
Ssh Secure Shell
SSHO Softer Handover
SSI Server Side Include
SSI Server Side Includes
SSI Small-Scale Integration
SSI Start Service Instruction
SSI Start Signal Indicator
SSI Submarine Systems Inc. (AT&T)
SSI Subscriber Service Invocation
SSI Supplementary Service Interactions
SSI Supplementary System Information
SSI Synchronous Serial Interface
SSID Service Specific Initiation Data
SSID Start Service Instruction Detail
SSIE System Service Initiation Event
SSIF Supplementary System Information Field
SSIG terminal-network SIGnalling at T reference point
SSIS Solid-State Image Sensor
SSIT SCPII/SMS Interface Tester
SSIT Supplementary System Information Type
SSL Secure Sockets Layer
SSL Subscriber Service Limiter
SSLC Special Service Line Card
SSLO Solid State Local Oscillator
SSLPP Single Shelf Link Peripheral Processor
SSM Satellite System Monitor
SSM Service State Machine
SSM Single Segment Message
SSM Special Services Module
SSM Spread Spectrum Modulation
SSM spread-spectrum modulation
SSM Switching State Model
SSM Synchronization Status Message
SSM Sync-Stream Manager
SSM System Support Machine
SSMA Scan Shared Memory Area
SSMA Spread Spectrum Multiple Access
SSMB Special Services Management Bureau
SSME Service Switching Function Management Entity
SSMG Satellite System Monitoring Group
SSMS Special Services Management System
SSN Special Services Network
SSN Subsequence Number
SSN Sub-System Number
SSN Survivable Subnetwork
SSN7 Signaling System No. 7
S-SNMP Secure SNMP
SSO Satellite Switching Office
SSOC Switching Services Operations Center
SSOG Satellite System Operations Guide (INTELSAT)
SSOP Satellite System Operating Plan (INTELSAT)
SSOP Shrink Small Outline Packaging
SSP SCSI-3 Serial Storage Protocol
SSP Security Service Provider
SSP Selector Signal Preparation
SSP Service Switching Point
SSP Service Switching Point (IN term)
SSP Service-Specific Part
SSP Signalling and Switching Processor
SSP Signalling Switching Point
SSP Subsystem Prohibited message
SSP Supervisor Stack Pointer
SSP Switching Service Process
SSPA Solid State Power Amplifier
SSPC Subsystem Prohibited Control
SSPI Security Service Provider Interface
SSPI System Specific Performance Index
SSPID SSP ID
SSPM Subscriber Service Profile Manager
SSPSK Spread Spectrum Phase Shift Keying
SSPSNBR SSP Sub-System Number
SSP-UT Service Switching Point Under Test
SSR Secondary Surveillance Radar
SSR Separations Summary Register
SSR Solid State Relay
SSR solid-state recorder
SSR Steady State Reception
SSR Subscriber Service Report
SSR Subscriber Support Representative
SSR Supplier's Software Repository
SSR Switch Status Report
SSR System Status Register
SSRA Spread Spectrum Random Access
SSRC Synchronization Source
SSRE Status, System Resources Exceeded
SSRR Strict Source and Record Route
SSRV Send Service message
SSS Self-Synchronizing Scrambling
SSS Self-Synchronous Scrambling
SSS Signalling Software Subsystem
SSS SMDS Switching System
SSS Standard Send Side
SSS Switched Special Service(s)
SSS Switched SubSystem
SSS Switching Subsystem
SSS System/Segment Specification
SSS Systems Security Services
SSSD Single-Sided Single-Density (Disk)
SSSF Self-Scanner Stop Failure
SSSP Station to Station Sent Paid
SSSR Subscriber Service Status Report
SST Safe Store Utility
SST Secondary State
SST Send Special Information Tone message
SST Send Special information Tone signal
SST Short Sender Timing
SST Short Supervisory Transition
SST Silicon Storage Technology Inc.
SST Single Sideband Transmission
SST Spread-Spectrum Technology
SST Subscriber Service Testing
SST Subscriber Station
SST Subscriber Transferred
SST Subscriber-Transferred (Changed Number) signal
SST Subsystem Status Test message
SST Super Self-aligned Technology (High-Speed Bipolar IC)
SST Synchronous Service Transport
SST Synchronous System Trap
SST System Segment Table
SSTC Subsystem Status Test Control
SSTDMA Switched Satellite Time Devision Multiple Access
SS-TDMA satellite-switched TDMA
SSTF Shortest Seek Time First
SSTI System Segment Table Index
SSTIC Shared Storage Interface Chip
SSTO System Segment Table Offset
SSTP Status, Stopped
SSTV Slow Scan Television
SSTV Slow-Scan TeleVision
SSU Single Signaling Unit
SSU Subsequent Signal Unit
SSU Switch Supervisory Unit
SSU Synchronization Supply Unit
SSW Serving Switch
SSW Space Switch
ST end-of-pulsing Signal
ST ISO country code for Democratic Republic of Sao Tome and Principe
ST MF Start Signal
ST SCE Testing
ST Science and Technology
ST Sector Tandem
ST Segment Type
ST Send Timing
ST Serial Telecom
ST Serial Transmission
ST Short-Term
ST Sidetone
ST Signaling Terminal
ST Signaling Tone
ST Signalling Termination
ST Slot Type
ST Smalltalk
st Smalltalk File
ST Software Testing
ST Source Terminate
ST Space Telescope
ST Spanning Tree
ST Start signal
ST Stimulus Terminal
ST Stop Pulsing Signal (End-of-Pulsing Signal)
ST Stop Transmission
ST Straight Tip
ST Stream Protocol
ST Street Name
ST String Terminator
ST Subscriber's Terminal
st Such that
ST SuperTracer
ST Suspend Termination
ST Symbol Table
ST System Time
St/Ev State/Event Mapping
ST/SYS Storage and Transfer System
ST/V Digitalk Smalltalk/V
ST/X Smalltalk/X
ST2 Stream Protocol Version 2
ST2P Stop Pulsing Signal Double Prime
ST3P Stop Pulsing Signal Triple Prime
ST6E Signaling Terminal 6 Equipment
ST7 Signaling Terminal 7
ST7A Signaling Terminal 7 Array
ST7E Signaling Terminal 7 Equipment
ST80 Smalltalk-80
STA Servei de Telecommunicacions d'Andorra
STA Service Test Application
STA Short Term Accessibility
STA Signaling Terminal Array
STA SmalltalkAgents
STA Spanning Tree Algorithm (IEEE 802.1D)
STA State
STA Station
STACS Security Technology and Consulting Services
STAG Security Techniques Advisory Group (ETSI)
STAIRS STorage And Informations Retrieval System
STAM Smalltalk Architecture Model
STAMP Standardized Message Protocol
STAMP Standardized Test Access Message Packet
STAP Smalltalk Apprentice Program
STAR Advanced telecommunications for the industrially less advanced regions of the EC
STAR Satellite Globalstar
STAR Setup Info and Reusable Dialogs
STAR Special Telecommunication Action for Regional Development
STAR Subspace-Tracking Array-Receiver
STAR System to Test Adaptive Routing
STAREQ STAR (*) Equivalence Code
STARS Sampled Traffic Analysis and Reports System
STARS Software Technology for Adaptable, Reliable Systems
STAT Status message
STAT ENQ Status Enquiry message
STB Set-Top Box
STB Shelf Test Bus
STB Signalling Terminal Buffer
STB Simulation Testbed
STB Split Ticket Billing
STB Stage Translation Block
STB Symbol Table
STBA Segment Table Base Address
ST-BUS Mitel Semiconductor Serial Telecom Bus
ST-Bus Synergy Transaction Bus
STBY Standby
Stby Standby
STBYC Standby-Cold
STBYH Standby-Hot
STBYI Standby Inhibited
STBYS Standby Switched
STC ETSI Technical Sub-Committee
STC Secondary Transit Center
STC Sensitivity Time Control
STC Serving Test Center
STC Signaling Terminal Controller
STC Signalling Terminal Controller
STC single time code
STC Society for Technical Communication
STC Society of Technical Communication
STC Software Technology Center
STC Standard Telephone & Cable
STC Standard Telephones and Cables
STC Standard Transmission Code,
STC Structure Chart
STC SubTechnical Committee (ETSI)
STC Switching and Testing Center
STC System Time Clock
STC Systems Training Center
STCC Spacecraft Technical Control Centre
STCM Signaling Terminal Control Module
STCM Signaling Terminal Controller Module
STD Software Test Description
STD Standard
STD Standard Deviation
STD State Transition Diagram
STD Stuttered Dialtone
STD Subscriber Trunk Dialing
STD Synchronous Time Division
STD System Target Decoder
STD_ANN Standard Announcements
STDA S-Bus Transmit Data
STDD Shared Time-Division Duplexing
stderr Standard Error Output
stdin Standard Input
stdlog Standard Logging Output
STDM Statistical Time Division Multiplexer
STDM Statistical Time-Division Multiplexer
STDM Statistical/synchronous TDM
STDM Synchronous Time Division Multiplexing
STDMG STD Manufacturer's Group
STDN Space Tracking and Data Network
stdout Standard Output
STDP Single Throw Double Pole switch
STE Section Terminating Equipment
STE Section Termination Equipment
STE Security Terminal Equipment
STE Segment Table Entry
STE Service Triggering Element
STE Signaling Terminal
STE Signaling Terminal Equipment
STE Signaling Terminal Link Error Threshold Exceeded
STE Signaling Terminating Equipment
STE Software Test Environment
STE Span Terminating Equipment
STE Spanning Tree Explore
STE Spanning Tree Explorer
STE Station Terminal Equipment
STE Supergroup Translating Equipment
STE6 Signaling Terminal 6 Extension
STE7 Signaling Terminal 7 Extension
STEAM Segmented Testcase Execution Administration and Management
STEG Segment Table Entry Group
STEI Static TEI
STEM STS Element Manager
STEP Signaling Transfer and Endpoint
STEP Single Test Execution Platform
STEP Software Technology Evolution Program
STEP Standard for the Exchange of Product Model Data (EDI)
STF Short-Term Failure
STF Some Tests Failed
STF Speech Transcoding Frame
STF Start Field
STF State Transition Failure
STFL Signaling Terminal Card Failure
STFP SGML Tree Formatting Process
STFP Standard Tree Formatting Process
STG Signaling Terminal Group
STG Single Trunk Group
STG SToraGe
STG System Test Group
STH Services Test Head
STI Scientific and Technical Information
STI Securicor Telesciences Inc.
STI Signalling Terminal Interface
STIC Smalltalk Industry Council
STID Set TID
STIG Speech Technologies Interest Group
STIG Speech Technology Interest Group
STIM Smalltalk Implementation Model
STK Search Tool Kit
STK Standard Electric Kirk
STL St. Laurent
STL Standard Telecommunication Laboratories
STL Standard Telegraph Level
STL Standard Template Library
STL Studio-Transmitter Link
STLP Secure Transport Layer Protocol
STLWS Supplementary Trunk Line Work Station
STM Scanning Tunneling Microscope
STM Scanning Tunneling Microscopy
STM Service Traffic Management
STM Service Trunk Module
STM Short Term Memory
STM Signaling Traffic Management
STM Small Trunk Module
STM STation Management (FDDI)
STM Subscriber Traffic Monitoring
STM Synchronous Time Multiplexing
STM Synchronous Transfer Mode
STM Synchronous Transport Mode
STM Synchronous Transport Module
STM-1 Synchronous Transfer Mode 1
STM-1 Synchronous Transfer Model-level 1
STMF STate Management Function
STM-N Synchronous Transport Module-N
STMR Sidetone Masking Rating
STMR Side-Tone Masking Reference
STN Special Tone
STN Station
STN Stream to NHLFE Map
STN Super Twisted Nematic (LCD Displays)
STN Super-Twist Nematic
STND Standard
STO Single Traffic Office
STO System Test Objectives
STOR Sectored Transmit, Omni Receive
STOR Store Allocator
STORM Structure-Oriented Resilent Multicast
STP Screened Twisted Pair
STP Service Transaction Program
STP Shielded Twisted Pair
STP Short Term Prediction
STP Signal Transfer Point
STP Signaling Transfer Point
STP Software Test Plan
StP Software Through Pictures
STP Spanning Tree Protocol (FDDI)
STP Standard Temperature and Pressure
STP SToP
STP Stop Pulsing Signal Prime
STP Subtable Pointer
STPA ST-BUS Parallel Access Circuit
STPDPCD1 STP Destination Point Code (Primary)
STPDPCD2 STP Destination Point Code (Secondary)
STPGTSCD STP Global Title Source Code
STPL Sidetone Path Loss
STPST Stop-Start
STPTTNBR STP Translation Type Number
STQ Service Triggering Queue
STQ Specch Processing, Transmission and Quality Aspects
STR Sanity Timer Register
STR Selective Toll Restriction
STR Selective Trunk Reservation
STR Send To Resource
STR Sidetone Reduction
STR Slotted Tube Resonator (NMR)
STR Software Test Report
STR Speaker-Trained Recognition
STR Special Tone Receiver
STR Specialized Tone Receiver
STR State- and Time-Dependent Routing
STR Synchronous Transmit/Receive
STR Synchronous Transmitter/Receiver
STRD Short Timed Release Disconnect
STRE Sidetone Reference Equivalent
STRI Technological Institute of Iceland Standards Division
STRIDE Science and Technology for Regional Innovation and Development in Europe
STRIFE Stress to Life
STRSS Speaker-Trained Recognition Service Supervisor
STS Scandinavian Telecommunications Services
STS Secondary Timing Supply
STS Serving Translation Scheme
STS Set Transmit State
STS Shared Tenant Service
STS Signaling Terminal Shelf
STS Site Transmission System
StS Smalltalk Systems
STS Software Test System
STS Software Testing System
STS Space Transportation System (Shuttle)
STS Space-Time-Space (switching)
STS Speech Technology Server
STS Staged Transport System
STS Station-to-Station
STS Synchronous Transfer Signal
STS Synchronous Transfer System
STS Synchronous Transport Signal
STS1 Synchronous Transport Signal Level 1
STS-1 Synchronous Transport Signal-Level 1
STS12 Synchronous Transport Signal Level 12
STS-12 Synchronous Transport Signal-Level 12
STS18 Synchronous Transport Signal Level 18
STS-18 Synchronous Transport Signal-Level 18
STS192 Synchronous Transport Signal Level 192
STS-192 Synchronous Transport Signal-Level 192
STS24 Synchronous Transport Signal Level 24
STS-24 Synchronous Transport Signal-Level 24
STS3 Synchronous Transport Signal Level 3
STS-3 Synchronous Transport Signal-Level 3
STS36 Synchronous Transport Signal Level 36
STS-36 Synchronous Transport Signal-Level 36
STS3C Synchronous Transport Signal Level 3 Concatenated
STS-3C Synchronous Transport Signal-Level 3 Concatenated
STS48 Synchronous Transport Signal Level 48
STS-48 Synchronous Transport Signal-Level 48
STS9 Synchronous Transport Signal Level 9
STS-9 Synchronous Transport Signal-Level 9
STS96 Synchronous Transport Signal Level 96
STS-96 Synchronous Transport Signal-Level 96
STSN Set and Test Sequence Numbers
STSn Synchronous Transport Signal Level n
STS-n Synchronous Transport Signal-Level n
STS-N Synchronous Transport Signal-Level N
STS-Nc Concatenated Synchronous Transport Signal- Level N
STSR Sectored Transmit, Sectored Receive
STST Self Test
STT Secure Transaction Technology
STT Services Tracking Tool
STT Set-Top Terminal
STT Software Tracking Tool
STT State Transition Table
STT Strategic Test Tools
STTL Schottky Transistor-Transistor Logic
STTP SGML Tree Transformation Process
STU Secure Telephone Unit
STU Set-Top Unit
STU Signal Transmission Unit
STU Speech Transcoding Unit
STU Station Termination Unit
STU Subscriber Terminal Unit
STU Subscriber Termination Unit
STU Subscriber's Trunk Unit
STU F Speech Transcoding Unit-Full Rate
STU H Speech Transcoding Unit-Half Rate
STUG Smalltalk Users Group
STUI Service To User Information
STV Digitalk Smalltalk/V
STV Sprint Telecommunications Venture
STV Subscription Television
STWC Subscription Three-Way Calling
STX Smalltalk/X
STX Start of Text
STX STS Cross-Connect
SU ISO country code for USSR (obsolete)
SU Scroll Up
SU Segmentation Unit
SU Served User (TETRA)
SU Set Up
SU Signal Unit
SU Signaling Unit
SU Subscriber Unit
SU Super User
SU32 Substitutional 3B2T
SUA Software Group Unblocking Acknowledgment Signal
SUA Stored Upstream Neighbor's Address
SUB Subaddress Parameters
SUB Subaddressing
SUB SUBaddressing (supplementary service)
SUB Subscript (HTML tag)
SUB Substitute Character
SUB Suburban
SuB Systemunabhaengige Betriebsfuehrung (System-Independent Operating Technology)
subRU Sub Recording Unit
SUBRU SubRecording Unit
SubsA Subsequent Address
SUC Starter Use Case
SUDS Software Update and Distribution Service
SUEM SUS Element Manager
SUERM Signal Unit Error Rate Monitor
SUG Smalltalk Users Group
SUGI Secondary User Group identity
SUI Supplemenal User Identification
SUI Supplementary User Identification
SUID Set User ID
SUIT Simple User Interface Toolkit
SULTS Subscriber Line Testing System
SUM Sample Unsuccessful Backward Setup Information Message
SUM Software User's Manual
SUMM Summary
S-UMTS Satellite-UMTS
SUN Sunrise
SUNI Saturn User Network Interface
SUNY State University of New York
SUP Superscript (HTML tag)
SUP SUpervisory Packet
Sup Supplement
SUPAC Super Authorization Code
SUPERNet Shared Unlicensed Personal Radio Network
SUPR Supervisor
SUPV SUPerVisor
SUR SMP Usage Report
SUS SCE Usage Scope
SUS Silicon Unilateral Switch
SUS Single User System
SUS Site Utilities System
SUS Small Ultimate Size
SUS Susended Line
SUS Suspend
SUS Suspend message
SUS Suspend Service
SUS Suspended Service
SUS Suspension
SUS/RES i Suspend/Resume Indicators
SUSGRP Suspend service for a group of lines
SUSI Simple Unified Search Interface
SUSP Subscriber Usage Sensitive Pricing
SUSP Subscription Usage Sensitive Pricing
SUSP Suspend
SUT Switch Under Test
SUT System Under Test
SV ISO country code for Republic of El Salvador
SV SerVice sublayer
SV Service Vendor
SV Supervision
SV Support Vessel
SV System Verification
SVA Shared Virtual Area
SVA Supervision Amplifier
SVC (Switched) Virtual Call
SVC Secure Voice Communications service
SVC Service Call
SVC Signaling Virtual Channel
SVC Supervisor Call
SVC Switched Virtual Call
SVC Switched Virtual Channel
SVC Switched Virtual Circuit
SVC Switched Virtual Connection
SVCB Supervision Control Block
SVCC Service Charge
SVCC Service Surcharge
SVCC Signaling Virtual Channel Connection
SVC-CRS Switched Virtual Connection Cell Relay Service
SVCD Service Code Dialing
SVCI Signaling Virtual Channel Identifier
SVCIA Signaling Virtual Channel Identifier A
SVCIB Signaling Virtual Channel Identifier B
SVCId Signalling Virtual Channel Identifier downstream
SVCIup Signalling Virtual Channel Identifier upstream
SVCRED SVC Redundancy
SVCS Satellite Video Communication System
SVD Simultaneous Voice and Data
SVD Singular Value Decomposition
SVD(S) Simultaneous Voice Data (Service)
SVE SAP Vector Element
SVGA Super VGA
SVGA Super Video Graphics Array
SVHOE Stratified Volume Holographic Optical Element
S-VHS Super Video Home System (VHS)
SVI Service Interception
SVID System V Interface Definition (ATT)
SVL Spare Values
SVL Standard Volume Label
SVN Software Version Number
SVN Subscriber Verification Number
SVOD Staggered Video on Demand
SVP Senior Vice President
SVP Surge Voltage Protector
SVP Switched Virtual Path
SVPC Switched Virtual Path Connection
SVR Server Service
SVR Supply Voltage Rejection
SVR System V Release
SVR2 System V Release 2 Unix
SVR3 System V Release 3 Unix
SVR4 System V Release 4 Unix
SVRAM Synchronous VRAM
SVS Select Vertical Spacing
SVS Single Virtual Storage
SVS Single Virtual System
SVVS System V Verification Suite (AT&T)
SW Short Wave (3...30 MegaHertz)
SW Show Window
SW Software
SW Southwest
SW Status Word
SW Switch
SW Synchronization Word
SW56 Switched 56
SWA Single Wire Armour
SWA Software Agreement
SWA Standardization Work Area (ETSI)
SWAB Standard Billing Number for WATS
SWAC System-Wide Authorization Code
SWACT Switch Activity
SWAMI Serialized WIP And Management Information
SWAN Seamless Wireless ATM Network
SWAP Exchange DNs
SWAP Shared Wireless Access Protocol
SWAP Software Agreement Process
SWB Southwestern Bell
SWBD Switchboard
SWBT Southwestern Bell Telephone
SWC Servicing Wire Center
SwC Switch Card
SWCT Switch in Activity
SWD Software Delivery
SWDL Software Downloaded
SWDL Software Downloading
SWDR Single Way Dynamic Range
SWEDAC Swedish Board for Technical Accredication
SWER Software Error
Swerr Software Error
SWF Second-Window Fibre (1300 nm)
SWF Short Wave Fadeout
SWF Switched Fractional
SWF-DS1 Switched Fractional DS1
SWFG Secondary Waveform Generator
SWG Standard Wire Gauge
SWG Sub-Working Group
SWIFT Intelligent Switch Filtering Technique
SWIFT Society for Worldwide Interbank Financial Telecommunications
SWIFTNet Software Inter-company Flexible Transfer Network
SWIM Super Woz Integrated Machine
SWING Subscriber Wireless Network Gateway
SWL Short Wave Listener
SWLT Swap Logical Terminals
SwMI Switching and Management Infrastructure (TETRA)
SWNR Switch of Activity/Node
SWOF SWitchover Operation Failure
SWOP Standard Web Offset Press
SWP Swap file
SWP Switching Pattern
SWR Standing Wave Ratio
SWS Silly Window Syndrome
SWS Standard Work Seconds
SWT Standard Work Time
SWTCH Switching System Activity
SWTI Software Transfer Inhibited
SWTL Surface-Wave Transmission Line
SWTO Software Transfer Only
SWUL Software Upload
SWUL Software Up-Loading
SWV Service Work Volume
SWVR Standing Wave Voltage Ratio
SX Simplex
SXC Synchronous Crossconnect
SXGA Super XGA
SXIP Shadow Execute Instruction Pointer
SXS Step-by-Step
SxS Step-by-Step
SY ISO country code for Syrian Arab Republic (Syria)
SY Staff-Year
SYD SYstem Data
SYDR Synchronization Driver Receiver
SYFL System Failure
SYLK Symbolic Link
SYM Symmetric
SYN 1/6 character of International Alphabet No.5
SYN Synchronization
SYN Synchronization signal unit
SYN Synchronize
SYN Synchronize Sequence Numbers flag
SYN Synchronous Channel/Synchronized Cells Sublayer
SYN Synchronous Idle
SYN Synonym
SYN SYNthesizer
SYN channel SYNchronization channel
SYNC Synchronization
SYNC SYNChronization word (in SYN channel)
SYNC SYNChronize
SYNC Synchronous
SYNC Synchronous Clock
SYNCD SYNChronization word for D channel
SYNCF SYNchronization word from Cordless Fixed part (in SYN channel)
SYNCP SYNchronization word from CPP (in SYN channel)
SYNT Shenyang Nortel Telecommunications
SYNTRAN Synchronous DS3 Transmission
SYS System
SYS System File
SYSADM System Administration
SYSADM System Administrator
SYSB System Busy
SYSDOC System Level Design Document
SYSGEN System Generation
SysM System Maintenance
SYSOP System Operator
SYU Synchronization Signal Unit
SZ ISO country code for Kingdom of Swaziland
SZ Seizure
sz String terminated by a zero byte
SZC Super Zone Center
SZD Seized
T T reference point
T Temperature
T Tera (1,000,000,000,000 or 1024*1024*1024*1024)
t tera (10+12)
T Terminal
T Terminal Transactor
t time
T Timer
T Tip
T Token Bit
T Trail Termination
T Trailer
T Transaction
T Transformer
T Transmission Element
T Transmit
T Transparent
T Transport
T Transport Layer
T Transport Layer Service
T Trap
T Trunk
T Type Only
T&A Toll and Assistance
T&C Terms and Conditions
T&C Test & Certification
T&C Time and Charge(s)
T&CP Transport and Control Platform
T&L Terminate and Leave
T&M Time and Materials
T&R Tip and Ring
T/A Tones and Announcements
T/C True/Complement
T/CAS Traffic-alert/Collision-Avoidance System (Avionics)
T/D Talk/Data
T/E Test and Evaluation
T/R Tip and Ring
T/R Transceiver
T/R Transmit/Receive
T/S Time Switch
T1 ANSI standards committee responsible for telecommunications
T1 Timer T1, LAPB Acknowledgement Timer
T1 Timer T1, period of time at the end of which retransmission of a frame may be initiated
T1AG T1 Advisory Group
T1DM T1 Data Multiplexer
T1FP T1DM Framing Pattern
T1M1 technical subcommittee to T1 responsible for internetwork OAM&P standards
T1MTC T1 Maintenance Task
T1PB T1 Paddle Board
T1S1 technical subcommittee to T1 responsible for standards related to
service, architectures and signalling
T1SS T1 Service Supervisor
T1X1 technical subcommittee to T1 responsible for standards pertaining to
synchronous interfaces and hierarchical architectures
T1X75 X.75 Timer T1
T2 Timer T2, LAPB Response Timer
T2 Type 2 node
T2.0 Type 2.0 node
T2.1 Type 2.1 node
T200 ISDN Layer 2 Timer T200
T200P ISDN Layer 2 Timer T200 for PRI
T201 ISDN Layer 2 Timer T201
T203 ISDN Layer 2 Timer T203
T203P ISDN Layer 2 Timer T203 for PRI
T2X75 Timer 2 for X.75
T3 Timer T3, LAPB Idle Channel Timer
T301 ISDN Layer 3 Timer T301
T301P ISDN Layer 3 Timer T301 for PRI
T303 ISDN Layer 3 Timer T303
T303P ISDN Layer 3 Timer T303 for PRI
T305 ISDN Layer 3 Timer T305
T305P ISDN Layer 3 Timer T305 for PRI
T306 ISDN Layer 3 Timer T306
T306P ISDN Layer 3 Timer T306 for PRI
T308 ISDN Layer 3 Timer T308
T308P ISDN Layer 3 Timer T308 for PRI
T309 ISDN Layer 3 Timer T309
T309P ISDN Layer 3 Timer T309 for PRI
T310 ISDN Layer 3 Timer T310
T310P ISDN Layer 3 Timer T310 for PRI
T312 ISDN Layer 3 Timer T312
T316 ISDN Layer 3 Timer T316
T316P ISDN Layer 3 Timer T316 for PRI
T320 ISDN Layer 3 Timer T320
T320P ISDN Layer 3 Timer T320 for PRI
T321P ISDN Layer 3 Timer T321 for PRI
T322 ISDN Layer 3 Timer T322
T322P ISDN Layer 3 Timer T322 for PRI
T3POS Transaction Processing Protocol for Point of Sale
T3X75 Timer 3 for X.75
T4 Type 4 node
T400 Regular Interdigit Timer T400
T401 Critical Interdigit Timer T401
T402 Timer T402
T402P Timer T402 for PRI
T408 ISDN Layer 3 Timer T408
T408P ISDN Layer 3 Timer T408 for PRI
T5 Type 5 node
T8A Trunk Module 8-Wire with Metallic Access
TA Technical Advisory
TA Technical Assembly (ETSI)
TA Telecommunication Authority
TA Telecommunications Administration (EC)
TA Terminal Adapter
TA Terminal Area
TA Terminal Authentication
TA Termination Attempt
TA Test Access
TA Test Alert
TA Testing Accepted
TA Text Alignment
TA Time Advance
Ta Time intervalover which the random variable STA is defined
TA Timing Advance
TA Toll and Assist(ance)
TA Tones and Announcements
TA Trade Association
TA Traffic Administration
TA Transferred Account
TA Transistor Amplifier
TA Travel Authorization
TA Trouble Administration
TA Trunk Amplifier
TA Type Approval
TA WP Technical Assembly Working Procedures (ETSI)
TA96 Telecommunications Act of 1996
TAA Transfer Allowed Acknowledgement
TAA Transfer-Allowed-Acknowledgement signal
TAAB Type Approval Advisory Board
TAAS Trunk Answer Any Station
TAB Tape Automated Bonding
TAB Tape-Automated Bonding (IC)
TA-BA Trunk-Bridger Amplifier
TABL Table
TABS Talking Alternate Billing System
TABS Telemetry Asynchronous Block Serial (AT&T protocol)
TABXFR Table Transfer
TAC Technical Area Committee (CEC)
TAC Technical Assistance Center
TAC Telenet Access Controller
TAC Terminal Access Controller
TAC Terminal Association Control
TAC Test Access Card
TAC Test Access Circuit
TAC Test Access Control(ler)
TAC Time And Charges
TAC Trunk Access Control
TAC Type Approval Code
TACA Telecommunications Authorities Cryptographic Algorithm (USA)
TACAF Terminal Access Control Agent Function
TACAN Tactical Air Navigation (Military Avionics)
TACC Test Access
TACD Telephone Area Code Directory
TACE Test Access Controller Equipment
TACF Terminal Access Control Function
TACS Total Access Cellular System
TACS Total Access Communications System
TACT Timer T-Activate
TACTRAF Test Access Controller Traffic
TAD Telephone Answering Device
TAD Test Access Digital
TAD Test Access Digroup
TAD Thrust Augmented Delta
TAD Time and Date
TADO Touch Asynchronous Data Option
TADS Target Acquisition Designation Sight (Military Avionics)
TADS Traffic Administration Data System
TAE Telecommunications, Americas Edition (periodical)
TAE Test Access Network Equipment
TAF Terminal Access Facility (NetView)
TAF Terminal Adaptation Function
TAFAS Test Access From Any Station
TAFAS Trunk Answer From Any Station
TAFI Technical Analysis and Findings Information
TAG Technical Activities Guide
TAG Technical Ad-hoc Group
TAG Technical Advisory Group
TAG Technology Action Group
TAG Technology Advocacy Group
TAGTMART Tag/Value Master Record Tape
TAI Table Access Interface
TAI Temps Atomique International
TAI Temps Atomique International (International Atomic Time)
TAISEL Taiwan International Standard Electronics Ltd.
TAL Test Access Link
TAL Tetherless Access Ltd.
TAL Trigger Assignment List
TalDE Taligent Development Environment
TALIST Trigger Assignment List
TalOS Taligent Object Services
TAM Technical Assistance Manual
TAM Telecommunication Access Method
TAM Test Access Multiplexer
TAM Timer, Active Monitor
TAMI TPC Administration and Maintenance Interface
TAML Tandem Matching Loss
TAN Terminal Access Network (INOS-ATT)
TAN Test Access Network
TANSTAAFL There ain't no such thing as a free lunch
TAO TCP Accelerated Open
TAO Telephony Applications Object
TAP Technical Analysis Platform
TAP Telecommunication Application Platform
TAP Telelink Applications Processor
TAP Telocator Alphanumeric Input Protocol
TAP Telocator Alphanumeric Protocol
TAP Terminating Access Provider
TAP Test Access Path
TAP Test Access Point
TAP Test Access Port
TAP Transfer and Advancement Program
TAPI Telephony Application Programming Interface
TAPP Telephony Applications
TApp Telephony Applications Framework
tar Tape Archive
TAR Technical Action Request
TAR Terminating Access Record(s)
TAR Total Allocated Rate
TAR Translation Audit Record
TARA Telecom Applications Research Alliance
TARA Threshold Analysis and Remote Access (pgm, SNA)
TARDIS Tariff Definition System for Network Design (IBM)
TARI Tertiary Access Rights Identity
TARI Tertiary ARI
TARM Telephone Answering and Recording Machine
TARM Telephone Answering Recording Machine
TARP Target Identifier (TID) Address Resolution Protocol
TARP Terminal Address Resolution Protocol
TARR Test-Action Request Receiver
TAS Technical Assistance Service(s)
TAS Technical Assistance Support
TAS Telecom Analysis System
TAS Telecommunications Authority Singapore
TAS Telephone Answering Service
TAS Terminal-Activated Services
TAS Terminating Access Service
TAS Test Access Selector
TAS Tones, Announcements, and Signals
TAS Transceiver Antenna System
TAS Trunk Answer Any Station
TASC CSTA + SCAI
TASC Technical Assistance and Surveillance Center
TASC Telecommunication Applications for Switches and Computers
TASC Telecommunications Alarm, Surveillance, and Control
TASI Time Assignment Speech Interpolation (Bell Laboratories)
TASM Terminal Access State Model
TASM Turbo Assembler
TASMAN Tasmania submarine cable
TASS Trouble Analysis Subsystem
TASS Trouble Analysis System
TAT Terminal Application Transactor
TAT Termination Attempt Trigger
TAT Theoretical Arrival Time
TAT Trans-Atlantic Telecommunications submarine cable
TAT Trans-Atlantic Telephone
TAT TransAtlantic Telephone cable
TAT Transit Access Termination
TAT Translations Architecture Team
TAT Turn-Around Time
TATC Traffic And Test Controller
TATS Test and Traffic Simulator
TATS Test and Traffic System
TATS Traffic And Test System
TAU Test Access Unit
TAU Test and Alarm Unit
TAU Time Assignment Unit
TAUT Terminal Authentication
TAXI Transparent Asynchronous Transmitter/Receiver Interface
TAZ Tool-Activated ZIF
TB Broadband T-Interface
TB Talk Battery
TB Task Block
TB Technical Body (ETSI)
TB Technical Bureau (EWOS)
Tb Technisches Betriebsburo (Technical Operation Office)
TB Terabyte
TB Terminal Balance
TB Terminal Block
TB Time Base
TB Toll Break In
TB Toolbar
TB Transmission Buffer
TB Transparent Bridge
TB Transparent Bridging
TBA To Be Added
TBAF Terminating BAF
TBB T-Link Building Block
TBB Transborder BroadBand
TBC Tab Clear
TBC Terminating Basic Call
TBC Time Base Corrector
TBC Time Based Charging
TBC Time-Base Corrector (Video)
TBC Token Bus Controller
TBC Token Bus Controller (IEEE 802.4)
TBC Traffic Bearer Control
TBC Trunk Bearer Circuit
TBCD Telephony Binary Coded Decimal
TBCM Terminating Basic Call Model
T-BCM Terminating Basic Call Model
TBCP Tagged Binary Communications Protocol
TBCS Terminating Basic Call Service
TBCT Two B-Channel Transfer
TBD Temporary Bundler/Debundler
TBD To Be Determined
TBD To Be Developed
TBD Transmit Buffer Descriptor
TBE Time-Base Error
TBE Transient Buffer Exposure
TBETSI Technischer Beirat fur Normungsfragen des ETSI
TBH To Be Hired
TBHC Terminating Basic Half Call
TBI Toll Barge-In
TBI Toll Break-In
TBIA Translation Buffer Invalidate All
Tbid cordless portable part base identity code detect from CHM Time (19 ms)
TBINK Technischer Beirat fur Nationale und Internationale Koordination
TBIS Translation Buffer Invalidate Single
Tbit/s Terabits per Second
TBL Technik der Betriebslenkung (Technology for Operation Control)
TBL Time Base Lower Register
TBL Trouble
TBM Test Bed Manager
TBM Test Bus Master
TBM Transceiver Baseband Module
TBM Transport Bandwidth Manager
TBMLCIS Test Bed Manager Local Configuration Information Server
TBMRM Test Bed Manager Resource Manager
TBN Toolbar Notification
TBO Terminating Billing Option
TBO Total Benefit of Ownership
TBOS Telemetry Byte-Oriented Serial
Tbps Terabits Per Second
TBR Technical Basis for Regulation (ETSI)
TBR Timer, BCN Receive
TBR Transport Block Reject
TBRL Terminal Balance Return Loss
TBRL Test Balance Return Loss
TBR-RT TBR-Requirements Table (ETSI)
TBS Terminating Basic Session
TBS To Be Specified
TBS Turner Broadcasting System
TBSG Transparent Bridge/Source Route Gate Bridge
TBSTATE Toolbar State
TBSTYLE Toolbar Style
TBT Timer, BCN Transmit
TBU Time Base Upper Register
TBU Transmit Baseband Unit
TBUS Transaction Bus
T-BUS Transaction Bus
TBUSA T-Bus Access
TBV Technik Betrieb Vermittlungstechnik (VNK-OAM organization)
TBV Technischer Betrieb Vermittelnder Netzknoten (OAM Organization Technical Operation Switch)
TC ISO country code for Turks and Caicos Islands
TC Table Control
TC Tandem Completing
TC Tandem Connecting
TC Tcl Compiler
TC Technical Committee
TC TeleCommand
TC TeleCommunications
TC Telematic Command
TC Temperature Coefficient
TC Temperature Compensation
TC Terminal Capability
TC Terminal Concentrator
TC Terminal Congestion
TC Terminal Controller
TC Tertiary Center
TC Test Call
TC Test Case
TC Test Code
TC Test Connector
TC Testcase
TC Testing Complete
TC Time-Consistent
TC Toll Center
TC Toll Completing
TC Topology Change
TC Touch Calling
TC Traffic Channel
TC Traffic Controller
TC Transaction Capabilities
TC Transcoder
TC Transfer of Control of Call (TETRA)
TC Transit Center
TC Translation Control Register
TC Transmission Control
TC Transmission Convergence
TC Transmission Convergence sublayer
TC Transport Connection
TC Treatment Controller
TC Trunk Channel
TC Trunk Code
TC Trunk Concentrator
TC Trunk Conditioning
TC Trunk Control(ler)
TC Turbo C
TCA Terminal Call Appearance
TCA Threshold Crossover Alert
TCA Transfer Cluster Allowed message
TCA Transfer Cluster Allowed signal
TCAF Terminal Access Control Function
TCAM Telecommunications Access Method (IBM)
TCAP Transaction Capabilities Application Part (SS7)
TCAP Transaction CAPability
TCAPI Test Case Application Programming Interface
TCAPNM TCAP Calling Name Delivery
TCAR Test Case Attributes and Results
TCAS T-Carrier Administration System
TCB Task Control Block
TCB Technology Center Bodensee
TCB Test Case Block
TCB Transaction Control Block
TCB Transmission Control Block
TCB Trusted Computing Base
TCBC Changeback Control
TCBH Time Consistent Busy Hour
tcbuild Test Case Builder
TCC Target Cells and Connections
TCC Technical Committee Chairmen co-ordination (ETSI)
TCC Technology Control Center
TCC Telecommunications Coordinating Committee
TCC telemetry and telecommand
TCC Telephone Country Code
TCC Telephony Country Code
TCC Test Call Controller
TCC Test Case Convert
TCC Thomas Conrad Corp.
TCC Through-Connected Circuit
TCC Transmission Control Character
TCC Transmission Control Code
TCC Transmit Cell Count
TCCAN Telephone Credit Card Account Number
TCCB Technical Coordination Consultative Board (CEC)
TCCC Technical Committee on Computers and Communication
TCCD Total Call Connection Delay
TCCF Telephone Company of Central Florida
TCCI TOPS CCI
TCCN Telephone Credit Card Number
TCCO Temperature Compensated Crystal Oscillator
TCD Technical Cooperation Department
TCE Telephone Company Engineered
TCE Terminal Control Element
TCE Thermal Coefficient of Expansion
TCE Transit Connection Element
TCE Transmission Control Element
TCE transmissions control element (SNA)
TCE Transportation Connection Element
TCF TEAM Communication Facility
TCF TEAM Communications Facility
TCF Training Check Frame
TCF Transparent Computing Facility
Tcfp cordless fixed part processing Time (18 ms max)
TCFP Test Case First Pass
TCFP Time-Critical Floating-Point
TCG Teleport Communications Group
TCG Test Call Generator
TCG Time Code generator
TCGEN Test Case Generator
TCGN Terminal Configuration
TCGN Terminal Configuration Number
TCH Telematic Command Header
TCH Test CHannel
TCH Traffic Channel
TCH/D Traffic Channel-Data
TCH/F Full rate Traffic CHannel
TCH/F Traffic Channel/Full Rate
TCH/F2.4 Full rate TCH for <=2.4kbit/s user data
TCH/F2.4 Traffic Channel/Full Rate (2.4 kbit/s)
TCH/F4.8 Full rate TCH for 4.8kbit/s user data
TCH/F4.8 Traffic Channel/Full Rate (4.8 kbit/s)
TCH/F9.6 Full rate TCH for 9.6kbit/s user data
TCH/F9.6 Traffic Channel/Full Rate (9.6 kbit/s)
TCH/FS Full rate Traffic CHannel for Speech
TCH/FS Traffic Channel/Full Rate Speech
TCH/H Half rate Traffic CHannel
TCH/H Traffic Channel/Half Rate
TCH/H2.4 Half rate TCH for <=2.4kbit/s user data
TCH/H2.4 Traffic Channel/Half Rate (2.4 kbit/s)
TCH/H4.8 Half rate TCH for 4.8kbit/S user data
TCH/H4.8 Traffic Channel/Half Rate (4.8 kbit/s)
TCH/HS Half rate Traffic CHannel for Speech
TCH/HS Traffic Channel/Half Rate Speech
TCH/S Traffic Channel-Speech
TCHT Terminating Charge Treatment
TCI Tele-Communications Inc.
TCI Tele-Communications, Inc.
TCI Test Case Interpreter
TCI Test Case Command Interpreter
TCI Test Case Interpreter
TCI Time Change Indicator
TCI Tool Command Interface
TCI Transceiver Control Interface
TCIB Table of CIB Pointers
TCID Test Case Identifier
TCID Transport Connection Identifier
TCIF Telecommunications Industry Forum
TCL Terminal Coupling Loss
TCL Test Case Coding Language
TCL Testcase Coding Language
TCL Toll Circuit Layout
TCL Tool Command Language
TCL Transverse Conversion Loss
Tcl/Tk Tool Command Language/Toolkit
TCLAN Test Case Language
TCLR Toll Circuit Layout Record
TCLw Weighted Terminal Coupling Loss
TCM Tandem Connection Maintenance
TCM Tandem Connection Monitoring
TCM Telecommunications Manager
TCM Telematic Command Message
TCM Temperature Compensation Module
TCM Terminal to Computer Multiplexer
TCM Terminating Call Model
TCM Test Coordination Message
TCM Time Compression Multiplex
TCM Time Compression Multiplexed
TCM Time Compression Multiplexing
TCM Topology Configuration/Manipulation
TCM TOPS Connection Manager
TCM Transactor Communication Management
TCM Transactor Configuration Management
TCM Transit Connection Manager
TCM Traveling Class Mark
TCM Trellis-Coded Modulation
TCMA Tunable-Channel Multi-Access
TCMF Touch Calling Multifrequency
TCN Throughput Class Negotiation
TCN Timer Counter
TCN Travel Card Number
TCN1 Timer Counter 1
TCN2 Timer Counter 2
TCNI Translated Called Number Indicator
TCNS Thomas-Conrad Network System
TCNZ Telecom Corporation of New Zealand Ltd.
TCO Terminating Central Office
TCO Total Cost of Ownership
TCOC Changeover Control
TCOC Terminating Central Office Code
TCODE Testcase CODE
TCOEFF Transform Coefficients
TCON Terminal Congestion message
TCOS Telepoint Class Of Service
TCOS Trunk Class of Service
TCP Tape Carrier Package
TCP Tape Carrier Packaging
TCP Telepoint Control Part
TCP Termination Connection Point
TCP Test Coordination Procedure(s)
TCP Transfer Cluster Prohibited message
TCP Transfer Cluster Prohibited signal
TCP Transmission Control Protocol
TCP Transmission Control Protocol (TCP/IP-DoD)
TCP Trigger Check Point
TCP Trigger Control Point
TCP/IP Transmission Control Protocol/Internet Protocol
TCPA Telephone Consumer Protection Act
TCPB Testcase Call Processing Busy
TCPCOM TCP/IP Communication Tool
TCPH TCP Header
TCP-IP Transmission Control Protocol- Internet Protocol
TCPS STEAM Preprocessor
TCQ Trellis-Coded Quantization
TCQAM Trellis-Coded Quadrature Amplitude Modulation
TCR Channel Reset Timer
TCR Tagged Cell Rate
TCR Temperature Coefficient of Resistor
TCR Test Command Response (IEEE 802.2/network loopback test)
TCR Test Conformance Report
TCR Time Counter Register
TCR Timer Capture Register
TCR Touch Calling Receiver
TCR Transfer Cluster Restricted message
TCR Transfer Cluster Restricted signal
TCR Transient Call Register
TCR Translation Control Register
TCR1 Timer Capture Register 1
TCR2 Timer Capture Register 2
TCRC Controlled Rerouting Control
T-CREF Deutsche Telekom Connection Request Refuse message
TCRF Transit Connection Related Function(s)
TCRS Table Control Rule Set
TCRTR Technical Committee Reference Technical Report (ETSI)
TCRun Test Case Run
TCS Tata Consultancy Services
TCS Telex Computer Service
TCS Terminal Contention Service
TCS Terminating Call Screening
TCS Total Communications System
TCS Transmission Connection Segment
TCS Transmission Convergence Sublayer
TCS Transport Control Subsystem
TCS Travelling Current Source (LEMP)
TCS TRIBUNE Control Server
TCSEC Trusted Computer System Evaluation Criteria
TCT Toll Connecting Trunk
TCT Trunk Continuity Test
TCTR Technical Committee Technical Report (ETSI)
TC-TR Technical Committee Technical Report
TCTS Trans-Canada Telephone System
TCTS Transport Conformance Test System
TCU Technical Center Unit
TCU Teletypewriter Control Unit
TCU Terminal Coax Unit
TCU Terminal Control Unit
TCU Testcase Coding Utility
TCU Traffic Service Group Control Unit
TCU Trans Coding Unit
TCU Transcoder Unit
TCU Transmission control unit (IBM)
TCU Trunk Coupling Unit
TCVN Technical Committee on Information Technology
TCX Test Case Execution
tcx Transparently Compressed Executables
TCXO Temperature Compensated Crystal Oscillator
tcxp Test Case Execute Package
TD ISO country code for Republic of Chad
TD Table Data (HTML tag)
TD Table Driven
TD Tear Down
TD Temporal-Difference
TD Temporarily Disconnected
TD Temporary Document
TD Terminal Digit(s)
TD Termination Dialog
TD Test Desk
TD Test Distributor
TD Test Driver
TD Testing Done
TD Time Division
TD Tone Detect
TD Transmit Data
TD Transmitted Data
TD Transmitter/Distributor
TD Transparent Data
TD Tunnel Diode
TD Turbo Debugger
TD2 Timer TD2
TD3 Timer TD3
TDA Telecoms Dealers Association
TDA Toll Dial Assistance
TDA Transdata Diagnostics Aids (Siemens)
TDA Tunnel Diode Amplifier
TDAB Telecommunication Development Advisory Board
TDAS Traffic Data Administration System
TDB Task Database
TDB Telecommunications Development Bureau
TDB Temporal Database
TDB Ticketing Device Buffer
TDB Turbo Debugger
TDC Television (Signal) Down-Converter
TDC Telex Destination Code
TDC Terrestrial Digital Circuit
TDC Transient Data Channel
TDCS Traffic Data Collection System
TDD Table Distribution Daemon
TDD Telecommunications Device for the Deaf
TDD Time Division Duplex
TDD Time Division Duplexing
TDDP 10-Digit Dialing Plan
TDE Time-Domain Equalization
TDED Trade Data Element Directory (UN)
TDELAP ISDN Layer 3 Timer TDELAY for PRI
TDELAY ISDN Layer 3 Timer TDELAY
TDEV Time Deviation
TDF Test Data File
TDF Trap Definition File
TDF Trunk Distribution Frame
TDG Test Data Generator
TDG Transmit Data Gate
TDHS Time-Domain Harmonic Scaling
TDI Trade Data Interchange (UN)
TDI Transit Delay Indication
TDI Transit Delay Unit
TDI Transport Device Interface
TDI Transport Driver Interface
TDIL Test and Data Integration Layer
TDL Tau-Dither Loop
TDL TCAP Description Language
TDL Transition Detect Latch
TDL Tunnel Diode Logic
TDM Table Distribution Manager
TDM Thresholded Digital Measurement
TDM Time Division Multiplex
TDM time division multiplex
TDM Time Division Multiplexed
TDM Time Division Multiplexer
TDM Time Division Multiplexing
TDM Transceiver Demodulator Module
TDM Translation Description Manual
TDMA Time Division Multiple Access
TDMC time-division multiplex configuration
TDMS Time Division Multiplex System
TDMS Traffic Data Management System
TDMS Transmission Distortion Measuring Set
TDMS Transmission Distortion Measuring System
TDMTT Tandem Tie Trunk
TDN Toll Denial
TDN Toll Denied
TDN Toll Deny
TDO Toll Denied With Operator
TDOA Time Difference of Arrival
TDP Tag Distribution Protocol
TDP Telocator Data Protocol
TDP Transmission Development Process
TDP Trigger Detection Point
TDP-N Trigger Detection Point- Notification
TDP-R Trigger Detection Point- Request
TD-PSK Time-Differential Phase Shift Keyed
TDR Terminal Digit(s) Requested
TDR Time Domain Reflectometer
TDR Time Domain Reflectometry
TDR Time-Dependent Routing
TDRS Traffic Data Reports Service
TDRSS Tracking and Data Relay Satellite System
TDS Tabular Data Stream
TDS Test-Case Definition System
TDS Traffic Data System
TDS Transit Delay Selection
TDS Transparent Data Service
TDS1 Timer 1 for ISDN Display
TDS2 Timer 2 for ISDN Display
TDS3 Timer 3 for ISDN Display
TDSAI Transit Delay Selection and Indication
TDSI Transit Delay Selection and Indication
tDSPI Turbo DSP Island
TDT Target Designation Transmitter
TDT Transfer Data Test (D)
TDTC Telrad Digital Trunk Controller
TDTC Turkey Digital Trunk Controller
TDU Telesoftware Data Unit
TDUI Test Driver User Interface
TDV Toll Diversion
TDW Turbo Debugger for Windows
TE Table Editor
TE Terminal
TE Terminal Eliminator
TE Terminal Equipment
TE Terminal Equipment (ETSI TC)
TE Terminating Equipment
TE Test Environment Available
TE Test Equipment
TE Thermoelectric
TE Threshold Extension
TE Transit Exchange
TE Translation Enable
TE Transmission Efficiency
TE Transverse Electric
TE Transverse Electric wave
TE Trunk Expansion
TE1 Terminal Equipment- Type 1
TE1 Terminal Equipment 1
TE1 Terminal Equipment type 1
TE2 Terminal Equipment- Type 2
TE2 Terminal Equipment 2
TE2 Terminal Equipment type 2
TEA Test Escape Analysis
TEAM Test Engineering, Analysis, and Management
TEAM Test Execution, Administration, and Management
TEAM Text Execution and Administration Management
TEB Tape Error Block
TEB Thread Environment Block
TEC Tape Emulation Controller
TEC Technical Education Center
TEC Technical Education Council
TEC Telephone Engineering Center
TEC Total Electron Content
TEC Training and Education Center
TEC Transceiver Echo Canceller (ISDN)
TEC Transversal Echo Canceller
TEC Turbo Echo Canceller
TECS Thorn EMI Computer System
TEd Table Editor
TED Threshold Extension Demodulator
TED TriTeal Enterprise Desktop
TEDC Test Environment Development Center
TEDD Telecommunications Electronic Document Delivery
TEDIS Trade Electronic Data Interchange Systems
TEDP Telecommunications Executive Development Program
TEF TMN External Function
TEGFET Two-dimensional Electron-Gas Field Effect Transistor
TEHO Tail-End Hop-Off
TEI Terminal Endpoint Identifier
TEI Terminal Equipment Identifier
TEI Terminal Equipment Interface
TEI TETRA Equipment Entity
TEI Text Encoding Initiative
TEK Tektronix
TEL Telephone
TelCo Telephone Company
TelePATH Telecommunications Provisioning And Translations Hub
TELEX TELeprinter EXchange
TELEX Teletypewriter Exchange Service
TELMEX Telefonos de Mexico
TELN Telnet
TELNO Telephone Number
TELPAL Tel Aviv-Palo submarine cable
TELRIC Total Element Long Run Incremental Cost
TELSAM Telephone Service Attitude Measurement
TelSIG Telecommunications Special Interest Group
TELV Telecommunications Extra Low Voltage
TEM Transition Encoded Modulation
TEM Transmission Electron Microscopy
TEM Transverse Electric Mode
TEM Transverse Electro-Magnetic
TEM Transverse Electromagnetic wave
TEMA Telecommunication Engineering and Manufacturing Association
TEMP Temporary
TEMPEST TEMPorary Emission and Spurious Transmission
TEMS Transport Element Management System
TEN Trans-European Network
TEN Transit Exchange Node
TENT TE/NT Adaptor
TEO Terminating End Office
TEP Task group for Equipment Practice
TEP Terminal Emulation Processor (DDN-DoD)
TER Timer Event Register
TER Timer Expiry Response
TER Timer, Error Report
TER1 Timer Event Register 1
TER2 Timer Event Register 2
TERI Terminal Interface
TERM Termination
TERM Terminator
TERM_CAP Terminal Capabilities Information Element
TermFS Full Screen Terminal
TERMIDTYP Terminal Identification Type
TERML Maximum Number of Terminals
TermLM Line Mode Terminal
TERMSCAN Terminating Scanning Threshold
TES Test Execution System
TES Time Encoded Speech
TES Toll Essential
TES Toll Essential Service
TES Transportable Earth Station
TESE Telefonische Seelsorge (Spiritual Welfare Calls, Helplines)
TESS Terminating Service Suspension Treatment
TESS The Exponential Security System
TETRA Trans-European Trunked Radio
TEUT Terminal Equipment Under Test
TEV Terminal Equipment Validation
TEX Tau Epsilon Chi
TEX Test Executive
TEX Transit Exchange
Tf cordless fixed part Handshake Period
TF ISO country code for French Southern Territories
TF Terminal Function
TF Test Case First Pass
TF Test Finished
TF Test Frame
TF Thin Film
TF Tie Facility
TF Transmission Facility
TF Trap Flag
TF Trunk Frame
TFA Terminal Function Area
TFA TransFer Allowed
TFA Transfer Allowed message
TFA Transfer Allowed signal
TFAN Traffic Analysis
TFAS Transmit Frame Acquisition and Synchronization
TFC Test Functional Component
TFC Toll-Free Calling
TFC Traffic
TFC Traffic Flow Control
TFC Transfer Controlled message
TFC Transfer Controlled signal
TFC Transmission Fault Control
TFCR Transmit Function Code Register
TFDL Transmit FDL Register
TFE Tetra-Fluoro-Ethylene (Cable Insulation)
TFEL Thin-Film Electro-Luminescence (Flat Displays)
TFG Technology Focus Group
TFH Terminal Facilities Identifies
TFI T-Bus Frame Interface
TFI Temporary Frame Identity
TFI Terminal Facility Identifier
TFIG ETSI high level Task Force Implementation Group
TFM Transfer Message
TFM Transfer-Prohibited and Transfer-Allowed messages
TFMI Traffic Mix Information
TFMS Trunk and Facilities Maintenance System
TFO Terminating Fault Option
TFO Toll Fault Option
TFOV Total Field Of View
TFP Transfer Prohibited message
TFP Transfer Prohibited signal
TFR Theoretical Final Route
TFR Transfer Restricted message
TFR Transfer Restricted signal
TFRC Forced Rerouting Control
TFS Technical Framework Specification
TFS Text Formatting System
TFS Traffic Forecasting System
TFS Traffic Subsystem
TFS Translucent File System
TFS Transmit Frame Synchronization
TFS Trunk Forecasting System
TFS Turbo Profiler Statistics File
TFT Thin-Film Transistor
TFT Thin-Film Transistor (Matrix) (LCD Flat Displays)
TFTP Television Facility Test Position
TFTP Trivial File Transfer Protocol
TFTS Terrestrial-Flight Telecommunications System
TFU Timing and Frequency Unit
TG ISO country code for Togolese Republic (Togo)
TG Tandem Completing
TG Task Group
TG TeleGram
TG Tone Generator
TG Transcoding Gain
TG Translations Guide
TG Transmission Group
TG Trunk Group
TGA Targa Image File
TGA Traffic Generator Analog
TGC Tone Generator Circuit
TGC Transmission Group Control (SNA)
TGC Transmitter Gain Control
TGF Through Group Filter
TGGR Translations Guide Generic Requirements
TGID Trunk Group Identification
TGIF TCX Graphical Interface
TGM Trunk Group Multiplexer
TGMN Trunk Group Member Number
TGMS Third-Generation Mobile System
TGMU Trunk Group Member Usage
TGN Trunk Group Number
TGNT Tong Guang-Nortel
TGO Telecom Graphics Object
TGO Telecommunications Graphic Objects
TGO Test Group Objectives
TGS Ticket-Granting Server
TGS Ticket-Granting Service
TGS Transportable GSM Switch
TGSR Terminal Group Station Restrictions
TGSR Trunk Group Service Request
TGT Ticket-Granting Ticket
TGTBR Trunk Group Type By Rate
TH ISO country code for Kingdom of Thailand
TH Table Heading (HTML tag)
TH Terminal Handler
TH Test Head
TH Testhead
TH Threshold
TH Time Hopping
TH Transmission Header
TH Transport Header
THA Testhead Agent
THAPI Threaded API
THB Temperature-Humidity-Bias (IC-Testing)
THC Terminating Half-Call
THC Test Head Controller
THCL TestHead Communication Layer
THD Attendant Console Through Dialing
THD Total Harmonic Distortion
THD+N Total Harmonic Distortion Plus Noise
THDATA Test Head Data
THDBH Ten High Day Busy Hour
THF Tremendously High Frequency
THG Test Head Group
THI Test Head Interface
THIA TestHead Independent Access
THID Throughput Class Indication of D-Channel
THL Trans-Hybrid Loss
Thlost Link Re-establish time (10 s)
THP Terminal Handler Process
THP Test Head Peripheral
THP TestHead Proxy
thr Thread
THR Threshold
THT Test Head Terminal
THT Timer, Holding Token
THT Token Holding Time(r)
THTP Test Head Test Position
Thx Thanks
THz Teraherz
TI Telecommunications Industry
TI Terminal Interface
TI Test Initiator
TI Texas Instruments
TI Time
TI Time Interval
TI Timer Identifier
TI Timing Interval
TI Timing/Timer Variation
TI Transaction Identifier
TI Trunk Interface
TIA Technical Information Agreement
TIA Telecommunications Industry Association (US)
TIA Thanks In Advance
TIA The Internet Adapter
TIAG Telecommunications Industry Advisory Group
TIB Tag Information Base
TIB Technical Information Bulletin
TIC Table Integrity Checker
TIC Tandem InterLATA Connecting
TIC Target Instruction Cache
TIC Telecom IC
TIC Token Interface Coupler
TIC Token ring Interface Coupler (IBM)
TIC Trace Interrupt Control(ler)
TIC Transport Interconnection Charge
TIC Transport Interface Card
TICR TPU Interrupt Configuration Register
TICS TOPS InterLATA Carrier Service
TICT Tandem InterLATA Connection Trunk
TID Target Identification
TID Target Identifier
TID Task ID
TID Technical Information Document
TID Telefonica Investigacion y Desarrollo
TID Terminal Identification
TID Terminal Identifier
TID Time Interval Difference
TID Transaction Identifier
TID Type ID
TID/SID Target Identifier/Source Identifier
TIDE Traffic Information Distributor and Editor
TIDF Trunk Intermediate Distribution Frame
TIDR Transfer Identity Result
TIDU Transport Interface Data Unit
TIE Telecommunications (International Edition) (periodical)
TIE Terminal Interface Equipment
TIE Time Interval Error
TIE2WAY Tie Trunk 2-Way Traffic
TIES Telecom Information Exchange Server
TIES Telecommunication Information Exchange Services
TIETIN Tie Trunk Inward Traffic
TIETOUT Tie Trunk Outward Traffic
TIF Tagged Image Format File
TIF Telephone Influence Factor
TIF Terminal Interface
TIF Text Interchange Format
TIFF Tag Image File Format
TIFF Tagged Image File Format
TIFN Telephony Interface Node
TIFO Text Interchange Format
TIG Telecommunications Industry Group
TIG Telegram Identification Group
TIG TMOS IntraWeb Gateway
TIG Topology Information Group
TIGA Texas Instruments Graphics Architecture
TIH Terminal Information Handler
TII Technology Independent Interface
TIIAP Telecommunications and Information Infrastructure Assistance Program
TILS Technology and Information, Learning Solutions
TIM T1 Interface Module
TIM Telecommunications Industry Markup
TIM Telepoint Subscriber Identification Module
TIM Terrestrial Interface Module
TIM Test Information Management
TIM Timestamp
TIM TNM Integration Module
TIM Traffic Indication Map
TIM Transaction Information Manager
TIM Transient Intermodulation
TIM Transmitter Intermodulation
TIMPC T1 Interface Module Paddle Card
TIMS Test Information Management System
TIMS Transmission Impairment Measurement System (Telecom.)
TIMS Transmission Impairment Measuring Set
TIMS Transmission Impairment Measuring System
TIN Telekom Information Network
TIN Test Information
TiN Titanium Nitride
TIN Triangulated Irregular Network
TINA Telecommunications Information Networking Architecture
TINA-C Telecommunciations Information Networking Architecture Consortium
TINF Terminating NPA-NXX Information
TINR Transfer Initiate Result
TINSP Timer T-INSPECT
TINT Test Integration Team
TIO Test I/O
TIOC Technology Integration and Operations Center
TIP Terminal Interface Processor
TIP terminal interface processor (ARPANET)
TIP Transaction Internet Protocol
TIP Transition in Progress
TIR Terminal Imaging Radar (US Military Avionics)
TIR Total Internal Reflexion
TIREM Terrain Integrated Rough Earth Model
TIRKS Trunks Integrated Record Keeping System
TIROS Television and InfraRed Operational Satellite
TIRR True Intermediate Reroute
TIS Technical Information Session
TIS Technical Information Sheets (UK)
TIS Terminating International Switch
TIS Traffic Information Service
TIS Trusted Information Systems Inc.
TISI Thai Industrial Standards Institute
T-ISUP Deutsche Telekom ISUP
TITO Talk-In/Talk-Out
TIU Telemetry Interface Unit
TIU Terrestrial Interface Unit
TIU Trunk Interface Unit
TIU Trusted Interface Unit
TIVR Transfer Invoke Result
TJ ISO country code for Tajikistan
TJ Terminating Junctor
TJA Telecommunications Journal of Australia (periodical)
TJF Test Jack Frame
TK ISO country code for Tokelau
Tk Tcl-based Toolkit
TK Token
TK Trunk
TKB Task Builder
TKCS Terminating Key Code Screening
TKCV Trunk Conversion
TKO Trunk Offer
TL Technische Lieferbedingungen (Technical Conditions of Supply)
TL Telecom Layer
TL Telecommunication Laboratories
TL Telephony Layer
TL Test Line(s)
TL Tie Line
TL Transit Link
TL Transmission Level
TL Transmission Link
TL Transmit Leader
TL Transport Layer (OSI)
TL Wake-Up Tone from LT
TL1 Test Language 1
TL1 Transaction Language 1
TL-1 Transaction Language 1
TLA Three Letter Acronym
TLAC Link Availability Control
TLAN Test Language
TLB Terminal Linkage Block
TLB Translation Lookaside Buffer
TLB Type Library
TLBS Terminal Linkage Block Structure
TLC Telecommunication
TLC The Learning Channel
TLC Trunk Logic Circuit
TLD Telephone Line Doubler
TLD Top Level Design
TLD Top Level Domain
TLD Transactor Level Design
TLDN Temporary Local Directory Number
TLDP Technology Leadership Development Program
TLE Terminal Local Exchange
TLF Trunk Link Frame
TLFF Technical Level Feeders Forum
TLFF/CC Technical Level Feeders Forum Conformance and Certification
TLG Technical Liaison Group (EWOS)
TLGC Turkey Line Group Controller
TLI Transmission Link Interface
TLI Transport Layer Interface (UNIX)
TLI Transport Level Interface
TLK Talk(ing)
TLL Transmit Loop Loss
TLLI Temporary Logical Link Identity
TLM Team Lab Manager
TLM Trouble Locating Manual
TLn Teilnehmer (Subscriber)
TLNS Terminating Line Number Screening
TLP TDOA Location Processor
TLP Terminating Line Privileges
TLP Transmission Level Point
TLP Trouble Locating Procedure
TLP Trouble Locating Process
TLPU Telecommunications Line Protector Unit
TLR Terminal Location Register
TLR Toll Line Release
TLS Terminating Line Select(ion)
TLS Thread Local Storage
TLS Transport Layer Security
TLT Technological Lead Time
TLT Test Line Test
TLTC Telrad Line Trunk Controller
TLTC Turkey Line/Trunk Controller
TLTP Trunk Line Test Panel
TLU Terminating Line Unit
TLV Type, Length, and Value
TLV Type-Length-Value
TLWE Transmit Lower Window Edge
TLWS Trunk and Line Work Station
TLX Telex
TM (Registred) Trade Mark
TM ISO country code for Turkmenistan
TM Tape Mark
TM Tapemark
TM Team Manager
TM Technical Manual
TM Technical Memorandum
TM Telemetry
TM Terminal Mobility
TM Terminal Multiplexer
TM Terminating Marker
TM Test Mode
TM Time Modulation
TM Trade Mark
TM Trademark
TM Traffic Management
TM Traffic Manager
TM Transaction Manager
TM Transaction Module
TM Transactor Design Model
TM Transfer Mode
TM Transition Module
TM Transmission and Multiplexing
TM Transmission and Multiplexing (ETSI TC)
TM transmission header (SNA)
TM TransMission sublayer
TM Transparent Mode
TM Transverse Magnetic
TM Transverse Magnetic wave
TM Trunk Module
TM2 Trunk Module, 2-Wire
TM20 ISDN Layer 2 Timer TM20
TM4 Trunk Module, 4-Wire
TM8 Trunk Module, 8-Wire
TMA Telecommunications Managers Association (UK)
TMA Traffic Management Agent
TMA Trunk Module Austria
T-MAFR Timing Modified Anarchy Flood Routing (protocol)
TMAP Telephony Mapper
TMART Transfer Master Record Tape
TMAS Transport Maintenance and Administration System
TMB Terminal Make-Busy
TMB Trunk Module Broadband
TMC Telecom Microelectronics Centre
TMC The Movie Channel
TMC Thinking Machines Corporation
TMC Timeslot Management Channel
TMC Transmission Maintenance Center
TMCU TMS Control Unit
TMDB Terminal Mobility Database
TMDF Trunk Main Distributing Frame
TM-DS0A DS0-A Transition Module
TME Telocator Message Entry Protocol
TME Terminal Management Environment
TME Test Manufacturing Engineering
TME Tivoli Management Environment
TME Trunk Module Equipment
TMF Telecommunications Modeling Framework
TMF Tivoli Management Framework
TMF Trunk Maintenance Files
TMG Transit Message
TMI Telephone Multimedia Interface
TMI TETRA Management Entity
TMI Trunk Monitoring Identifier
TMIS Telemanagement Information System (Telwatch)
TML Tandem Matching Loss
TML Telecommunications Modeling Language
TML Terminating Matching Loss
TML Thermal Multilayering
TML Transaction Management Layer
TMLA Trademark License Agreement
TMM Terminal Mobility Manager
TMM Transmission Monitoring Machine
TMN Telecommunications Management Network
TMO Thermo Magnetic Optical disk
TM-OC3c OC-3c Transition Module
TMOS Telecommunications Management and Operations Support
TMOS Telecommunications Management Operations System
TMP Temporary
TMP Terminal Monitor Program
TMP Test Management Protocol
TMP Theoretical Midpoint
TMP Transmission Maintenance Point
TM-PDU Test Management PDU
TMP-IL Transmission Maintenance Point- International Line
TM-PSE Power/SCSI/Ethernet Transition Module
TMR Timer Mode Register
TMR Timer Utility
TMR Total Measured Rate
TMR Transmission Medium Requirement(s)
TMR TransMitteR
TMR Triple Modular Redundancy
TMR Triple Modular Redundant
TMR1 Timer Mode Register 1
TMR2 Timer Mode Register 2
TMRP Transmission Medium Requirement Prime
TMRS Traffic Measuring and Recording System
TMS Telecommunications Management System
TMS Telecommunications Message Switch
TMS Test Management System
TMS Text Messaging System
TMS Time Management System
TMS Time-Multiplexed Switch
TMS Time-Multiplexed Switching
TMS Timing Monitoring System
TMS TOPS Message Switch
TMS Transmission Measuring Set
TMSI Temporary Mobile Station Identity
TMSI Temporary Mobile Subscriber Identifier
TMSI Temporary Mobile Subscriber Identity
TMSU TMS Unit
TMT Traffic Management
TMT Treatment Utility
TMTC TeleMetry and TeleCommand
TMTP Tree-Based Multicast Transport Protocol
TMU Transceiver Microwave Unit
TMU Transmission Medium Used
TMU Transmission Message Unit
TMUX Trans-MUltipleXer
TMux Transport Multiplexing Protocol
TMW TeleManagement World
TN ISO country code for Republic of Tunisia
TN Telecommunications Network
TN Telenetworks
TN Telephone Number
TN Terminal Number
TN Timeslot Number
TN Tone
TN Transaction Number
TN Transit Network
TN Transport Network
TN Trunk Number
TN Twisted Nematic (LCD)
TN Type of Number
TN U.S. postal code for Tennessee
TN Wake-Up Tone from NT
TN/NPI Type of Number and Numbering Plan Indicator
TNA Telematic Networks Between Administrations
TNA Telex Network Adapter
TNAE Telecommunications (North American Edition) (periodical)
TNAME Timer T-Name
TNAS Telecommunications Network Application System (Unisys)
TNAT Terminating No Answer Timer
TNB Third Number Billing
TNC Transit Network Capability
TNC Transit Node Clock
TNC Transport Network Control
TNDS Total Network Data System
TNDS/TK Total Network Data System/Trunking
TNE The Nortel Edge
TNEF Transport Neutral Encapsulation Format
TNFE Twisted Nematic Field Effect
TNI Telecommunications Network Interface
TNI Trunk Number Identification
TNI Trusted Network Interpretation
TNIC Transit Network Identification Code
TNIR TransportNode Information Repository
TNL Terminal Net Loss
TNM Total Network Management System
TNM Traffic Network Management
TNM Trunk Network Model
TNMP Telecommunications NM Program (DEC)
TNMS Transport Node Management Systems
TNN The Nashville Network
TNN Transport Network Node
TNN Trunk Network Number
TNO Text Number (number of selected text)
TNOP Total Network Operations Plan
TNOS Telephone Network Operating System
TNP Toll Network Protection
TNPB TransportNode Program Book
TNPP Telecator Numeric Paging Protocol
TNPP Telocator Network Paging Protocol
TNS Target Network Structure
TNS Total Network Solutions
TNS Total Network Surveillance
TNS Transaction Network Service
TNS Transit Network Selection
TNS Transit Network Selector
TNS Trusted Network Systems
TNS/I Transit Network Selection/Identification
TNSTAAFL There's no such thing as a free lunch
TNT Timer, No Token
TNT Turner Network Television
TNV Telecommunication Network Voltage
TNX Thanks
TO ISO country code for Kingdom of Tonga
TO Tandem Office
TO Tandem Originating
TO Technical Order
TO Telecommunications Operator
TO Test Object
TO Time Out
TO Timeout
TO Toll Office
TO Tone Only
TO Traffic Office
TO Traffic Order
TO Transistor Outline (Package)
TOA Table of Authorities
TOA Threshold of Audibility
TOA Time Of Arrival
TOA Type Of Address
TOA/NPI Type of Address/Numbering Plan Identifier
TOC Table of Contents
TOC Telepoint Operator Code
TOC Television Operating Center
TOC Television Operating Centre
TOC Trunk Operations Center
TOCA Timing Output Card
TOCC Technical and Operational Control Center
TOCC Technical and Operational Coordination Center
TOCC Transponder Operations Control Centre (INTELSAT)
TOD Task Oriented Documentation
TOD Time Of Day
TOD Time Of Delivery
TODM Telecommunications Object Data Management
TODR Time-of-Day Routing
TOF Time Out Factor
TOF Top Of File
TOF Top Of Form
TOF Total Operation Failure
TOF transfer overhead factor
TOFC Terminating Office
TOH Traffic Overhead
TOH Transport Overhead
TOHP Transmit Overhead Processor
TollBP Toll Bypass
TOLLRST Toll Restriction
TOLR Toll Restricted
TOLR Transmit Objective Loudness Rating
TOLR Transmitting Objective Loudness Rating
ToME Topology Management Environment
TON Type of Number
TON Type Of Number
TONESYN Tone Synthesizer
TONICS Telephone Operations Network Integrated Control System
TONICS TelOps Network Integrated Control System
TOP Table Of Pages
TOP Task Oriented Practice
TOP Task Oriented Procedure
TOP Technical and Office Protocol
TOP Technical/Office Protocol
TOP Transaction-Oriented Protocol
TOPAS Testing Operations Provisioning and Administration System (CSC-ATT)
TOPAS Testing, Operations, Provisioning and Administration System
TOPAS-ES Testing, Operations, Provisioning and Administration System- Expert System
TOPMS Telemarketing Operations Performance Management System
TOPO Topology
TOPP Task-Oriented Plant Practice
TOPS Technical and Office Products System
TOPS Traffic Operator Position System
TOPS MP Traffic Operator Position System Multipurpose
TOPS MPX Traffic Operator Position System Multipurpose Extended
TOPS MPX-IWS Traffic Operator Position System Multipurpose Extended-Intelligent Workstation System
TOPSMP Traffic Operator Position System Multipurpose
TOR Telegraph On Radio
TOR Teleprinting Over Radio
TOR Terminal-Owning Region
ToR Terms of Reference (ETSI)
TOR Type of Routing
TORC Traffic Overflow Reroute Control
TorMAC Toronto Multimedia Application Center
TORTOS Terminal Oriented Real Time Operating System
TOS Taken Out of Service
TOS Tape Operated System
TOS Tape Operating System
TOS Temporarily Out of Service
TOS Testing Operation System
TOS Testing Operations Systems
TOS Top Of Stack
TOS Trunk Out of Service
TOS Type of Service
TOS Type Of Subaddress
TOSC Trunk Operations Support Center
TOSD Telephone Operations and Standards Division
TOT Time Of Transmission
TOT Transfer of Technology
TOT Transfer Overhead Time
Tp cordless portable part handshake period
TP DDOC Section: System Testplan
TP ISO country code for East Timor
TP Telekomunikacja Polska (PL)
TP Tele-Processing
TP Terminal Portability
TP Terminal Profile
TP Terminating Party
TP Termination Point
TP Test Pattern
TP Test Plan
TP Test Plan Defined
TP Test Point
TP Test Position
TP Test Purpose(s)
TP Testing Point
TP Toll Plant
TP Toll Point
TP Toll Prefix
TP Transaction Processing
TP Transaction Processing Service
TP Transaction Processor
TP Transaction Program
TP Transport
TP Transport Packet
TP Transport Plane
TP Transport Protocol
TP Twisted Pair
TP 0 Transport Protocol Class 0
TP 1 Transport Protocol Class 1
TP 2 Transport Protocol Class 2
TP 3 Transport Protocol Class 3
TP 4 Transport Protocol Class 4
TP0 Transport Protocol Class 0
TP1 Transport Protocol Class 1
TP2 Transport Protocol Class 2
TP3 Transport Protocol Class 3
TP4 Transport Protocol Class 4
TPA Telephone Pioneers of America
TPA Transfer Prohibited Acknowledgement
TPA Trunk-Port Adapter
TPAD Terminal Packet Assembler/Disassembler
TPAD Transparent Packet Assembly/Disassembly
TPAG Terminal Paging
TPASE Transaction Processing Application Service Element
TPC Telecommunications Product Code
TPC Timing Processor Card
TPC TOPS Position Controller
TPC Transaction Processing Council
TPC Transaction Processing Performance Council
TPC Translation Point Code
TPC Trans-Pacific Cable
TPC Twisted-Pair Cable
TPCC Third-Party Call Control
TPCPI Transaction Portion Component Portion Interface
TPD Total Power Dissipation
TPD Trailing Packet Discard
TPD Transparent Processable Data
TPDU Transport Protocol Data Unit
TPE Test Program Edit
TPE Transmission Path Endpoint
TPE Trigger Processing Environment
TPF Time Prism Filter
TPF Transaction Processing Facility
TPF Transmission Priority Field
TPF2 Transaction Processing Full Stack 2
TPI Talking Party Identification
TPI Test Point Information
TPI The Perl Institute
TPI Threads Per Inch
TPI Tracks Per Inch
TPI Transmission Performance Index
TPI Transport Provider Interface
TPL Terminal Per Line
TPL Terminal Processing Level
TPL Transaction Packet Length
TPM Timing and Processor Module
TPM Transaction Processing Monitor
TPM Transactions Per Minute
TPM Transceiver Processing Module
TPM Transit Parameter(s)
TPM Twisted Pair Modem
TPNS Teleprocessing Network Simulator (IBM)
TPON Telephony over Passive Optical Network
tPoP Traditional Point of Presence
TPOW Timer T-Power
TPP Mag Tape Preparation Program
TPP Telephony Preprocessor
TPPM Transaction Processing Protocol Machine
TP-PMD Twisted Pair Physical Medium Dependent
TPR Teleprinter
TPR Transmission Process Repository
TPRN Terminating Private Number
TPROG Timer TPROG
TPS Terminal Per Station
TPS Three Party Service
TPS Transaction Processing System
tps Transactions Per Second
TPS Transfer Position Seizure
TPS Transmission Parameter Signaling
TPSA Telekomunikacja Polska
TPSI Temporary Portable Subscriber Identity
TPSP Transaction Processing Service Provider
TPSU Transaction Processing Service User
TPSUI Transaction Processing Service User Invocation
TPT Terminal Processing Task
TPT Test Progress Tone
TPT Transmission Path Termination
TPTD Total data Packet network Transfer Delay
TPU Time Processing Unit
TPU Time Processor Unit
TPU Transceiver Processing Unit
TPU Turbo Pascal Unit
TPUI Temporary Portable User Identity
TPUN Terminating Public Number
TQC Total Quality Control
TQF Trunk Query Failure Signal
TQFP Thin Quad Flat Pack
TQM Total Quality Management
TQP Timer, Queue PDU
TQU Trunk Query Signal
TR ISO country code for Republic of Turkey
TR Table Row (HTML tag)
TR Task Register
TR Technical Reference
TR Technical Report
TR Technical Report (ETR/TC-TR/TCR-TR in ETSI)
TR Technical Requirement(s)
TR Technische Richtlinien (Technical Guideline)
TR telcom report (periodical)
TR Temporal Reference
TR Terminal Ready
TR Terminating Resistor
TR Test Cases Ready
TR Test Register
TR Time Reference
TR Token-Ring
TR Toll Restriction
TR Tone Receiver
TR Traffic Route
TR Transfer Restriction
TR Transit Exchange
TR Transmit/Receive
Tr Transponder
TR Trouble Report
TR Trunk Reservation
TR Tuning Range
T-R Transmitter-to-Receiver optical power
TR/TSB Technical Report/Technical Service Bulletin
TRA Call Transfer
TRA Telecommunications Reform Act
TRA Telecommunications Research Associates
TRA Token-Ring Adapter
TRA Traffic Restart Allowed message
TRA Traffic Routing Administration
TRA Transfer-Restart-Allowed signal
TRAC Technical Recommendations Application Committee (now NTRAC)
TRACES Tracking Reporting Accessing Captive Engineering Services
TRADACOMS Trading Data Communications
TRAF Traffic
TRAF Traffic Data
TRAGG Transport Reliability Analysis Generic Guidelines
TRAN Transient
TRANS Transaction
TRANSCAN Canary Islands submarine cable
TRANSPAC1 Hawaii-Japan-Philippines 1 submarine cable
TRANSPAC2 Hawaii-Japan-Philippines 2 submarine cable
TRANSPAC3 Hawaii-Japan-Philippines 3 submarine cable
TRAP Software Trap
Trate Code word transmit rate time (50/100 ms)
TRAU Transcoder/Rate Adaptor Unit
TRAVER Translations Verification
TRAVIS Traffic Retrieval Analysis Validation and Information System
TRB Trouble
TRBL Trouble
TRC Technical Review Committee (MAP/TOP)
TRC Terminating Call Trace
TRC Terminating Restriction Code
TRC Traffic Restriction Categories
TRC Transfer Recent Change
TRCC T-Carrier Restoration Control Center
TRCC Total Received Cell Count
TRCC Turkey Remote Cluster Controller
TRCL Timed Recall
TRD Load Transferred
TRD Telepoint Registration Data
TRD Terminal Registration Data
TRD Timed Release Disconnect
TRD Transferred
TRD Transit Routing Domain
TRDPC Toll Restriction/Diversion Prohibited Codes
TRDZMS Toll Restriction/Diversion Zero Minus Screening
TREAT Trouble Report Evaluation and Analysis Tool
TREM Timed Reminder
TRES Table Resource Execution System
TRES Transmit/Receive Earth Station
TRF Call Transfer
TRF Traffic Data Collected
TRF Tuned Radio Frequency
TRF Tuned RadioFrequency (Receiver)
TRFACA Traffic Data- ACA
TRFLN Traffic Data- LUTS/NUTS
TRG Tip/Ring to Ground
TRI telcom report International (periodical)
TRI Transit Routing Information
TRIAC TRIode Alternating-Current switch
TRIB Transfer Rate of Information Bits
TRIBUNE Testing, Ratification and Interoperability of the Broadband User/Network Interface
TRID Transaction ID
TRIF Technical Requirements Industry Forum
TRIG Trigger
TRIGACT Trigger Activation Indicator
TRIGCNT Trigger Processing Control
TRIGTYP Trigger Type
TRIL Token Ring Interoperability Lab
TRIMOS CMOS-TRIode Alternating-Current switch
TRINIT TR-303 Interoperability National Implementation Team
TRIO Telecommunications Research Institute of Ontario
TRIP Transcontinental ISDN Project
TRIP-92 Transcontinental ISDN Project 1992
TRK Trunk
TRK Trunk Maintenance
TRL Technical Reference Library
TRL Transistor-Resistor Logic
TRL Trunk Register Link
TRLR Trailer
TRM TEAM Resource Management
TRM TEAM Resource Manager
TRM Terminal Settings file
TRM Transcoder Resource Module
TRM Transfer Rate Multiplier
TRM Transfer Restart Message
TRM Transport Protocol for Reliable Multicast
TRM Transport Resource Manager
TRMB Terminated-Both
TRMF Terminated-From
TRMP TEAM Resource Management Proxy
TRMS Time Division Multiple Access Reference and Monitoring Station
TRMS Transactional Record Management System
TRMS True Root-Mean Squared
TRMT Terminated-To
TRMT Transmit
TRMT Treatment
TRMT Treatment Team
trn Threaded Read News
TRN TRaNsaction
TRN Transaction Reference Number
TRN TRaNsparent
TRO Terminating Only
TRO Total Return on Ownership
TROFF Typeset RunOFF
TROHP Transmit/Receive Overhead Processor
TRON The Realtime Operating System Nucleus
TRON The Realtime Operating-system Nucleus (Japanese Operating System)
TROS Tape Read Only Storage
TRP TEAM Resource Preference
TRP Technology Reinvestment Project
TRP Terminal Resource Profile
TRP Transaction Portion
TRP Transport Reference Point
TRPB Truncated Reverse Path Broadcast
TRPF Transmit/Receive Parity Failure
TRPO Terminal Resource Profile Observer
TRR Timer Reference Register
TRR Timer, Return to Repeat
TRR1 Timer Reference Register 1
TRR2 Timer Reference Register 2
TRS Telecommunications Relay Service
TRS Telecommunications Relay System
TRS Telephone Relay Service
TRS Toll Recording System
TRS Toll Restricted Service
TRS Transceiver Receiver Splitter
TRS Translations and Routing Services
TRS Transmission Repeater Station
TRS-D Toll Recording System-Digital
TRSF Terminal Resource Finder
TRSP Terminal Root Service Proxy
TRT Timing and Reference Transponder
TRT Token Rotation Timer
TRU TOPS Recording Unit
TRU Transceiver Radio Unit
TRU Transmit/Receive Unit
TRUMP Trunk Maintenance Package
TRUST Translations, Routing, and Utility Services Team
TRW Traffic Restart Waiting message
TRW Transfer Restart Waiting message
TRX Transceiver
TRX Transmitter Receiver
TS Tandem Supplement
TS Tandem Switch
TS Task Switched
TS Technical Specification
TS Telecommunication Sector (ITU-TS)
TS Telekom Service
TS Teleservice
TS Terminal Server
TS Terminating Service
TS Termination System
TS Test
TS Test In Progress
TS Test Strategy
TS Test Strategy Defined
TS Test Suite
TS Testing Started
TS Time Slot
TS Time Stamp
TS Time Switch
TS Time-Sharing
TS Timeswitch
TS Toll Switching
TS Traffic Shaping
TS Transfer Syntax (OSI-PL)
TS Transit Switch
TS Transmission Speed
TS Transmission Subsystem
TS Transport Service
TS Transport Station
TS Transport Stream
TS Two Stage
T-S Time-Space
TS0 Time Slot 0
TS16 Time Slot 16
TS16 Time slot 16
TS3T Time-Space-Space-Space-Time
TSA Link Test Acknowledgement message
TSA Target Service Agent
TSA Time Slot Allocation
TSA Time Slot Assignment
TSA Time-Slot Address
TSA Transition Service Agent
TSA Translations & Switch Administration
TSA Translations Switching Administration
TSAC Time Slot Assigner Circuit
TSAC Time Slot Assignment Circuit
TSACC Telecommunications Standards Advisory Council of Canada
TSAG Telecommunication Standardization Advisory Group
TSAG Telecommunications Standards Advisory Group
TSAM Traffic Sampling
TSAP Transport Service Access Point
TSAPI Telephony Services Application Programming Interface
TSAS Time Slot Assignment Scheme
TSAU Time Slot Access Unit
TSB Technical Service Bulletin
TSB Telecommunications Standardization Bureau
TSB Telecommunications Systems Bulletin
TSB Twin Sideband
TSC Technical Service Center
TSC Technical Standards Committee
TSC Technical Subcommittee
TSC Telecommunication Services License
TSC Telecommunications Service Customization
TSC Temporary Signaling Connection
TSC Test System Controller
TSC Three-State Control,
TSC Training Sequence Code
TSC Transit Subnetwork Count
TSC Transit Switching Center
TSC Transmission Service Capability
TSC Trunk System Controller
TSC/RTU Test System Controller/Remote Test Unit
TSCF Target System Control Facility (NetView)
TSCF TSC Fallback
TSCP TSC Preferred
TSCR Terminating Central Office Screening
TSCU TSC Used
TSD Test Specification Development
TSD Thread-Specific Data
TSD Toll Service Desk
TSD Total System Down
TSD Type Specific Driver
TSDI Transceiver Speech & Data Interface
TSDI Transceiver Speech and Data Interface
TSDU Transport Service Data Unit
TSE Technical Support Engineer
TSE Tentative Symbol Estimation
TSE Tentative Symbol Estimator
TSE Terminal Server Edition
TSE Thermal Stress Equivalent
TSE Time Slot Exchanger
TSE Toronto Stock Exchange
TSEL Transport Selector
TSF Terminal Simulation Facility
TSF Through Supergroup Filter
TSF Timing Synchronization Function
TSFC Signaling Traffic Flow Control
TSG Telephone Security Group
TSG Test Signal Generator
TSG Timeslot Generator
TSG Timing Signal Generator
TSG Timing Source Generator
TSG Traffic Service Group
TSGF Through SuperGroup Filter
TSGR Terminal Group and Station Restriction
TSGR Transport Systems Generic Requirements
TSH ToolBuilder Library and Shell
TSI Terminal State Indicator
TSI Time Slot Interchange
TSI Transmission Subsystem Interface
TSI Transmitting Subscriber Identification
TSI Transport Service Interpreter (DDN)
TSIC Time Slot Interchange Circuit
TSISS Time-Slot Interchange Service Supervisor
TSIU Time Slot Interchange Unit
TSL Target System Libraries
TSL Total Service Life
TSL Transaction Sublayer
TSL Type-Safe Linkage
TSLRIC Total Service Long Run Incremental Cost
TSM Tabulation Stop Mode
TSM Telephony Signalling Module
TSM Terminal State Map
TSM Terminating State Machine
TSM Timer, Standby Monitor
TSM TNM Surveillance Module
TSM Transaction State Machine
TSM Transport Services Management
TSMAP Timeslot Map
TSMP True Symmetric MultiProcessing
TSMP Truly Symmetrical Multi Processor (Wyse Technology)
TSMS Traffic Separations Measurement System
TSN Test Session Number
TSN TOPS Services Node
TSNS Telecom Service Network Support (IBM-mng)
TSO Telecommunications Service Order
TSO Telephone Service Observations
TSO Terminating Screening Office
TSO Time Sharing Option (IBM)
TSO Total Store Ordering
TSO NFAS Time slot O without Frame Alignment Signal
TSOP Thin Small Outline Package
TSP Tandem Switching Provider
TSP Telephony Services Provider
TSP Terminal Service Profile
TSP Ticketing Scan Point
TSP Traffic Service Position
TSP Translation Signalling Point
TSP Traveling Salesman Problem
TSPDNCT Terminal Service Profile/Directory Number/Call Type
TSPI TAPI Service Provider Interface
TSPI Telephony Service Provider Programming Interface
TSPID Terminal Service Profile ID
TSPP Twin-Switch Power Pack
TSPS Traffic Service Position System
TSR Tag Switch Router
TSR Tag Switching Router
TSR Terminate and Stay Resident
TSR The Smalltalk Report (periodical)
TSR Theoretical Simple Recompile
TSR Transport Service Request (DDN)
TSRC Signaling Routing Control
TSRM Telecommunications Standards Reference Manual
TSRM Telecommunications Standards Reference Model (CEC DG XIII)
TSRMF Test Storage, Retrieval and Management Facilities
TSS Task State Segment
TSS Team Security System
TSS Technical Services Symposium
TSS Technical Standards Sector
TSS Technology Service Solutions
TSS Telecommunication Standardization Sector (ITU)
TSS Test Suite Structure
TSS Text Search System
TSS Thin Space Specification
TSS Time Space Switch
TSS Time-Shared System
TSS Time-Sharing System
TSS Toll Signal-Supervisory
TSS Toll Switching System
TSS Trunk Servicing System
TSS&TP Test Suite Structure & Test Purposes
TSS&TP Test Suite Structure and Test Purposes
TSS-C Transmission Surveillance System-Cable
TSSI Time Slot Sequence Integrity
TSSL Tyco Submarine Systems, Ltd.
TSSST Time-Space-Space-Space-Time
TST Link Test message
TST Test
TST Time Slot Transfer
TST Time-Space-Time
T-S-T Time-Space-Time
TSTA Transmission Signaling and Test Access
TSTD Traffic Standard
TSTF Test Failure
TSTN Triple Supertwisted Nematic
TSTP Timestamp
TSTP Transaction Switching and Transport Protocol
TSTRES Test Restrictions
TSTRESAM Test Restrictions for Analog Member of EKTS
TSTS Transaction Switching and Transport Service
TSTSIG Test Signal
TSU Telephone Signal Unit
TSU Test Signal Unit
TSU Traffic Switching Unit
TSV Test Standby VFL
TSW Terminal State Word
TSW Time Switch
TSY Technology Systems
TSYNC T-Interface Synchronization
TT Fixed-Width Teletypewriter Font (HTML tag)
TT ISO country code for Republic of Trinidad and Tobago
TT Talking Trunk
TT Tamper-Proof Torx
TT Teletypewriter Terminal
TT Temporarily Transferred
TT Terminal Timing
TT Terminating Time
TT Test Tone
TT Test Trunk
TT Text Telephone
TT Text Transfer
TT Tie Trunk
TT Toll Tandem
TT Touch-Tone
TT Traffic Tester
TT Translation Type
TT Trouble Ticket
TT TrueType
TT Trunk Type
TT Truth Table
TT&C Telemetry, Tracking & Command
TT/N Test Tone to Noise Ratio
TT0 Transparent Translation Register 0
TT1 Transparent Translation Register 1
TTA Telecommunication Technology Association
TTA Traffic Trunk Administration
TTA Transport-Triggered Architecture
TTB Temporary Trunk Blocking
TTB Toll Testboard
TTB Trunk Test Buffer
TTC TDMA Traffic Channel
TTC Telecommunication Technology Committee (JAP)
TTC Telecommunications Technical Council
TTC Telecommunications Techniques Corporation
TTC Telemetry, Tracking and Command
TTC Teletypewriter Center
TTC Terminal Test and Configuration
TTC Terminating Tandem Center
TTC Terminating Toll Center
TTC Touch Tone Calling
TTC Trunk Test Center
TTC&M Telemetry, Telecommand, Control & Monitoring
TTC2M TTC 2 Mbps
TTCAM Touch Tone Calling for Analog Member of EKTS
TTCN Tree and Tabular Combined Notation
TTCN.GR TTCN Graphical Form
TTCN.MP TTCN Machine-Processable Form
TTCN-GR TTCN Graphical Form
TTCN-MP Tree and Tabular Combined Notation Machine Processable
TTCN-MP TTCN Machine-Processable Form
TTCP Transmitting Typewriter with tape Punch
TTD Target Transit Delay
TTD Temporary Text Delay (BSC)
TTD Toll Test Desk
TTE Terminal Transmission Equipment
TTE Transmission Test Equipment
TTE Triple Transit Echo (Surface Acoustic Wave Filters)
TTF Test Tool Framework
TTF Transmission Test Facility
TTF Transmission Test Function
TTF TrueType Font
TTFN Ta-Ta for now
TTG Telephony Traffic Generator
TTG Two Separate Trunk Groups
TTI Text-To-Image
TTIB Transparent Tone In-Band
TTIET Timer for DP and DTMF Tie Trunk Facilities
TTL Time-to-Live
TTL Transistor-Transistor Logic
TTLP Transmit Transmission Level Point
TTM Transceiver Timing Module
TTM Transfer Termination Mode
TTN Target Transport Network
TTN Tie Trunk Network
TTO Telecommunications-related TurnOver (annual)
TTO Traffic Trunk Order
TTP Trail Termination Point
TTP Trunk Test Panel
TTP Trunk Test Position
TTP Trusted Third Party
TTPB Trunk Test Panel Buffer
TTR Time To Repair
TTR Transparent Translation Register
TTRT Target Token Rotation Time
TTS TeleType Setter
TTS Teletypesetter
TTS Tele-Type-Setting
TTS Text-To-Speech
TTS Toll Transit Switch
TTS Traditional Telephone Service
TTS Transaction Tracking System
TTS Trouble Ticket Subsystem
TTS Trunk Transit Subnetwork
TTT Transmission Test Trunk
TTTN Tandem Tie Trunk Network
TTTR Tandem Tie Trunk Route
TTU Telephone Terminal Unit
TTU Transmission Test Unit
TTU Trunk Test Unit
TTV Text-To-Video
TTX Teletex
TTX TeleX
TTXAU TeleX Access Unit (MHS/X.400)
TTXT Transparent TeXT
TTY Teletype
TTY Teletypewriter
TTY Text Telephone
TTYL Talk To You Later
TTYL Type To You Later
TTYS Teletypesetters
TU Tape Unit
TU Technische Unterlage (Technical Document) (Technical Paper)
TU Terminal Unit
TU Timing Unit
TU Tone Utility
TU Traffic Unit
TU Transmission Unit
TU Tributary Unit
TU Trunk Unit
TU Typical Urban
TU-11 Tributary Unit-Level 11
TU-12 Tributary Unit-Level 12
TU-2 Tributary Unit-Level 2
TU-3 Tributary Unit-Level 3
TUA Telecommunications Users Association (UK)
TUBA TCP and UDP with Bigger Addresses
TUC Total User Cell Count
TUCD Total User Cell Difference
TUD Transparent User Data
TUG Telecommunication User Group
TUG Tributary Unit Group
TUG-2 Tributary Unit Group 2
TUG-3 Tributary Unit Group 3
TUGI Tertiary User Group Identity
TULIP TCP and UDP over Lightweight IP
TUMS Temporary Usage Measured Service
TU-n Tributary Unit-Level n
TUNIC TCP and UDP over a Nonexistent IP connection
TUP Telephone User Part
TUP Telephone User Part (of signalling system No7)
TUP+ Enhanced Telephone User Part
TUP+ Telephone User Part "Plus"
TUP+ Telephone User Part +
TUPC Tuple Changed
TUPE Enhanced Telephone User Part
TUPI Terminating User Participant Information
TUPL Tuple
TUR Traffic Usage Recorder
TUR Trunk Utilization Report
TUSP Terminating User Service Participant
TUV Technischer Uberwachungs-Verein
TUWE Transmit Upper Window Edge
TV ISO country code for Tuvalu
TV TaskView
TV Television
TV Test Voltage
TV Transfer Vector
TV Type and Value
TVA Teilnehmer Vermittlengs-Anlage (PABX)
TVA Terminal Variable Area
TVAR Time Variance
TVDS Trunk Verification from Designated Station
TVEC Terminating Vector Coordinates
TVF TV Food Network
TVG TV Guide
TVI TeleVision Interference
TVM Time-Varying Media
TVO Total Value of Ownership
TVOD TV On Demand
TVRO Television Receive-Only
TVSC TeleVision Service Centre
TVT Translation Verification Test
TVTEL Thomas Valley TelCo
TVX Timer, Valid Transmission
TVX Valid Transmission Timer
TW ISO country code for Taiwan
TW Technology Watch
TW Timer
TW Transit Working
TW TypeWriter
TWA True Windows Application
TWA Two-Way Alternate
TWAIN Technology Without an Interesting Name
TWC The Weather Channel
TWC Three-Way Call
TWC Three-Way Calling
TWC Three-Way Conference
TWC Three-Way Connection
TWC Time Warner Cable
TWCC Two-Way Customer Communication
TWCUS Three-Way Calling, Usage-Sensitive
TWDD Two-Way/Delay Dial
TWG Technical Working Group
TWID Two-Way/Immediate Dial
twip Twentieth of a Point
twm Tab Window Manager
TWS Trunk Work Station
TWS Two-Way Simultaneous
TWT Traffic Work Table
TWT Travelling Wave Tube
TWTA Traveling Wave Tube Amplifier
TWWS Two-Way/Wink Start
TWX TeletypeWriter Exchange (Service)
TX Tandem Switch Complex
TX Transit Exchange
Tx Transmission
TX Transmit
TX Transmitter
TX U.S. postal code for Texas
TxBD Transmit Buffer Descriptor
TXC Transmission Control
TX-CEL Throughput X-Cellerator
TXD Telephone Exchange, Digital
TXD Transmit Data
TXE Telephone Exchange, Electronic
TXJ The X Journal (periodical)
TXK Telephone Exchange, Crossbar
TxM Transmit Machine
TXP Transport Node
TXPR transponder
TXPWR Transmit Power
TXS Telephone Exchange, Strowger
TXS Text-to-Speech Announcement
TxSB Transmitted Signaling Bit Pattern
TXT Text
TXT Text File
TXT TOPS Extended Testbed
TYP Type
TZ ISO country code for United Republic of Tanzania
TZ Time Zone
TZ Transmitter Zone
TZB Technik Zentrale Betriebsfuhrung (Technical Center Management)
U Unnumbered
U User
U Usage
U Underlined (HTML tag)
U Unavailability
U User Option
U-ISLC U-Interface ISDN Line Card
U-N User-to-Network
U-NII Unlicensed National Information Infrastructure
U-PCS Unlicensed Personal Communications Services
U-plane User plane
U-U User-to-User
U/L Universally Administered/Locally Administered
U/S User/Supervisor
UA Unnumbered Acknowledgement
UA User Agent
UA Universal Access
UA Unit Alpha Tested
UA Unavailability
UA ISO country code for Ukraine
UA Unbalanced ARM
UA Unassigned
UAC User Activation/Deactivation Capability
UAC User Application Control
UAE UNIX Applications Environment
UAE Unrecoverable Application Error
UAE User Agent Entity
UAG Circuit Group Unblocking Acknowledgement message
UAL User Application Layer
UAL UMTS Adaptation Layer
UAM Universal Access Multiplexer
UAM Universal Access Module
UAN Universal Access Number
UAN UMTS Access Network
UAOS Users Association for Open Systems
UAPR User Area Pointer Register
UART Universal Asynchronous Receiver/Transmitter
UAS Unavailable Second
UAS Unavailable Seconds
UAS Unassigned
UAS Universal Access Server
UAS Universal Access Shelf
UAT Unavailable Time
UATEI User-Assigned TEI
UAUT User Authentication
UAWG Universal ADSL Working Group
UBA Unblocking Acknowledgement message
UBA Unblocking-Acknowledgement signal
UBC User Bearer Channel
UBCF User Bearer Control Function
UBE Unsolicited Bulk E-mail
UBG Circuit Group Unblocking message
UBL Unblocking message
UBL Unblocking signal
UBM Unsuccessful Backward Setup Message
UBM Unsuccessful Backward Setup Information Message
UBM Unsuccessful Backward Monitoring
UBR Unspecified Bit Rate
UBR+ Unspecified Bit Rate Plus
UBS Unsuccessful-Backward-Set-Up-Information Message
UC Use Case
UC Utility Circuit
UC Upward Compatible
UC Usage Count
UC User Class
uC Microcontroller
UCA MDII: Unauthorized CAMA
UCB University of California at Berkeley
UCB Unit Control Block
UCC Universal Conference Circuit
UCC Unix Command Converter
UCCF User Call Control Function
UCD Uniform Call Distribution
UCD Universal Call Distribution
UCD Uniform Call Distributor
UCDLG UCD Login
UCDNSA UCD Night Service Activation
UCDNSD UCD Night Service Deactivation
UCDSD Uniform Call Distribution Signal Distributor
UCE Unsolicited Commercial E-mail
UCF User Control Function
UCF Unregistration Confirm
UCF Unregister Confirm
UCF Unregister Confirmation
UCFW Usage Sensitive Call Forwarding
UCG User-side Command Generator
UCIC Unequipped Circuit Identification Code message
UCL Upper Confidence Limit
UCLA University of California at Los Angeles
UCM Universal Cable Module
UCM User Configuration Manager
UCMTA Unix Cocos Message Transfer Agent
UCNCND Use of Charge Number for Calling Number Delivery
UCNCNDP Use of Charge Number for Calling Number Delivery, for PRI
UCP Universal Carrier Protocol
UCS User Coordinate System
UCS Universal Carrier Services
UCS Universal Card Service
UCS Answered Calls and Unanswered Calls which use a supplementary
service or signaling capability
UCS Universal Character Set
UCS Universal Multiple-Octet Coded Character Set
UCSD University of California at San Diego
UCT Usage and Conversation Time
UD Uniform Distribution Hunt
UD Unix Domain
UD Unitdata
UD-PCS Universal Digital PCS
UDC Universal Digital Channel
UDCI User Defined Customer Interface
UDF User Defined Function
UDF User-Defined Field
UDF Universal Disk Format
UDI Unrestricted Digital Information
UDI-TA Unrestricted Digital Information with Tones and Announcements
UDITA Unrestricted Digital Information with Tones and Announcements
UDLC Universal Digital Loop Carrier
UDLC Universal Data Link Control
UDLC Univac Data Link Control
UDLT Universal Digital Loop Transceiver
UDM User-Defined Message
UDMC Unified DRU Milestone Criteria
UDP User Datagram Protocol
UDP User Data Protocol
UDP Uniform Dialing Plan
UDP User-Defined Primitive
UDP/IP User Datagram Protocol/Internet Protocol
UDPC Universal Digital Personal Communications
UDR Universal Data Representation
UDR User-Defined Routing
UDS Universal Data Systems
UDS Upper Data Strobe
UDS Unix-Domain Sockets
UDT Unitdata message
UDT Unstructured Data Transfer
UDT Uniform Data Transfer
UDT User Defined Type
UDT with TA Unrestricted Digital Information with Tones and Announcements
UDTS Unitdata Service message
UDTS Universal Data Transfer Service
UDUB User Determined User Busy
UE User Element
UE Universal Edge
UE9000 Universal Edge 9000
UEP Unequal Error Protection
UEQ Unequipped
uF Microfarad
UFA User Facility Agent
UFBPSM Unprotected Fixed Block Pool Store Manager
UFC User Flow Control
UFD User File Directory
UFDL User File Description Library
UFI Upstream Failure Indication
UFM Unified Functional Methodology
UFM Unified Functional Model
UFS UNIX File System
UFS Unified File System
UFS Unit Fiber Structure
UFT Universal Fiber Terminal
UFT Unsolicited File Transfer
UG User Guide
UG User Group
UG ISO country code for Republic of Uganda
UG Underground
UG Uniguage
UG Use BBG Value
UG Users Group
UGS Undergraduate Student
UHF Ultra High Frequency
UHL User Header Label
UI Unnumbered Information
UI Unit Interval
UI User Interface
UI Unit Inventory
UI Unit Interval
UI UNIX International
UI Universal Interface
UI Unrecognized Information
Ui U-law Inverted
UIC User Interface Circuit
UIC Union Internationale des Chemins de fer
UIC U Interface Circuit
UICL User Interface Class Library
UID User Identification
UID User ID
UID User Identifier
UID User Interactive Circuit-Mode Data
UID User Interface Definition
UID User Interface Database
UIF User Interface Framework
UIH Unnumbered Information with Header Check
UIL User Interface Language
UIM User Identity Module
UIMF User Identification Management Function
UIMF User Information Management Function
UIMM Unsigned Immediate Value
UIMS User Interface Management System
UIN User Information message
UIP University Interaction Program
UIP User Interface Platform
UIPE Universal ISDN Protocol Engine
UIS User-In-Service
UIS Unclamped Inductive Switching
UIS Universal Information Services
UISA User Instruction Set Architecture
UISF User Interface Support Function
UIUC University of Illinois at Urbana-Champaign
UJ/UC Universal Jointing and Coupling
UK United Kingdom
uk Internet country code for Great Britain (United Kingdom)
UKB Universal Keyboard
UKOPS UK Operator Services
UKPO United Kingdom Post Office
UL Underwriters Laboratories
UL Unordered List (HTML tag)
UL Upper Limit
UL Upper Layer
ULA Uncommitted Logic Array
ULA Upper Layer Architecture
ULBB User Layer Building Block
ULC Urban Loop Concentrator
ULCT Upper Layer Conformance Testing Group
ULEC User List Editing Capability
ULP Upper-Layer Protocol
ULP Upper Layer Protocols
ULP Upper Level Protocol
ULSI Ultra Large-Scale Integration
ULSR Unidirectional Line-Switched Ring
UM ISO country code for United States Minor Outlying Islands
UM Unreliable Multicast
Um GSM Air Interface
um Micrometer
UMA Unified Messaging Architecture
UMA Uniform Memory Access
UMA Unified Memory Architecture
UMA Upper Memory Area
UMA User Message Analyzer
UMA Universal Management Agent
UMB Upper Memory Block
UMC Unassigned Mux Channel
UMCD Under Minimum Chargeable Duration
UMD Unreliable Multicast Datagram
UMD Unscrambled Mode Delimiter
UMD Usage Metering Data
UMD University of Maryland
UME UNI Management Entity
UME Upstream Mapping Element
UMG Unknown Message
UML Unified Modeling Language
UMM Unidirectional Multipoint-to-Multipoint
UMOB Unregistered Mobile
UMOT Unreliable Multicast Over Trees
UMP Universal Message Protocol
UMS UMTS Mobility Server
UMS Unified Messaging Service
UMT Universal Mobile Telecommunications
UMTS Universal Mobile Telecommunication System
UMTS Universal Mobile Telecommunications Service
UMXU User Message Transfer Unit
UN Uniform Numbering
UN Unnumbered Code
UN Unbalanced NRM
UNA Universal Night Answering
UNA Upstream Neighbor's Address
UNAM Universal Network-to-Server Access Method
UNAMCHAR Use Name Characters in IAM
UNATEI User- or Network-Assigned TEI
uNAV Micro NAV
UNB Counter of Unreasonable BSN
UNBAL Unbalanced
UNC Universal Naming Convention
UNC Universal Naming Conventions
UNC University of North Carolina
UNCOL Universal Common Language
UNCOND Unconditional
UNDN Unassigned Directory Number Treatment
UNEQ Unequipped
UNF Counter of Unreasonable FIB
UNFR Unframed
UNI Unidirectional
UNI User-Network Interface
UNI User-to-Network Interface
UNI Ente Nazionale Italiano di Unificazione
UNICODE Universal Trunk Out of Service Code
UNISON Unidirectional Synchronous Optical Network
UNISON-1 Unidirectional Synchronous Optical Network
UNJK Unjacked
UNMA Unified Network Management Architecture
UNN Unallocated-Number signal
UNN Unallocated Number message
UNN Unallocated National Number
UNO Universal Networked Objects
UNRES Unrestricted
UOA U-Interface-Only Activation
uoa U-Interface-Only Activation
UOG User-Out-of-Service Grant
UOR User-Out-of-Service Request
UOS User-Out-of-Service
UOS Universal Operations Systems
UOS Universal Operator System
UP User Part
UP Unified Processor
UP User Profile
UP User-Provided
UP User Provided
UP User Process
UP Upbanding Module
UP Unnumbered Poll
UP Update Processing
UP Update Processor
uP Microprocessor
UPA User Part Available message
UPA UltraSPARC Port Architecture
UPAR User Provided Audible Ring
UPAR Early Cut-Through for User Provided Audible Ring
UPB Upper Bound
UPC Usage Parameter Control
UPC Universal Product Code
UPC User Privilege Code
uPC Microprogram Counter
UPCS Universal Personal Communications System
UPCS Unlicensed PCS
UPFS User-Provided Failed Screening
UPG Upgrade Team
UPI User Participant Information
UPID Universal Path ID
UPL User Program Layer
UPM Unknown Parameter
UPM Units Per Minute
UPM Unidirectional Point-to-Multipoint
UPN User Premises Network
UPN United Paramount Network
UPNS User-Provided Not Screened
UPP Universal Procedure Pointer
UPP Unidirectional Point-to-Point
UPPS User-Provided Passed Screening
UPR User Performance Requirement
UPS Uninterruptible Power Supply
UPS Uninterruptible Power System
UPS Upper Performance Score
UPSR Unidirectional Path-Switched Ring
UPT Universal Personal Telecommunication
UPT Universal Personal Telecommunications
UPT Universal Personal Telephone
UPT User Part Test message
UPTDB UPT Number Database
UPTI UPT Indicator
UPTN Universal Personal Telecommunication Number
UPU User Part Unavailable message
UPU Universal Postal Union
UR User Rate
UR Unit Robustness Tested
UR Unix Review (periodical)
UR Unreliable Available
URA Uniform Resource Agent
URAN UMTS Radio Access Network
URC Uniform Resource Citation
URDO Unregistered Dial Out Service
URDOAD Unregistered Dial Out Access Default Type
UREG User Registration
UREM Universal Remote
URG Urgent Pointer flag
URGC Uniform Reliable Group Communication
URI Universal Resource Identifier
URJ Unregistration Reject
URJ Unregister Reject
URL Uniform Resource Locator
URL Universal Resource Locator
URM Universal Restoration Manual
URM Usage Reference Model
URM Universal Resource Management
URM User's Reference Manual
URN Universal Resource Number
URN Uniform Resource Number
URN Uniform Resource Name
URO Unified Repertoire and Ordering
URP User Root Pointer Register
URQ Unregistration Request
URQ Unregister Request
URSI Union Radioscientifique Internationale
uRTS ObjecTime Micro Run Time System
URTU Urban Remote Test Unit
US User Signaling
US Utility Service
US Usage Sensitive
US Unit Separator
US ISO country code for United States of America
US Use Per-Switch Value
US Upstream
us Microsecond
US ITAC U.S. International Telecommunications Advisory Committee
USA User Service Agent
USA User Signaling Agent
USAID Universal Speech Activated Intelligent Dialing
USART Universal Synchronous/Asynchronous Receiver/Transmitter
USASCII United States American Standard Code for Information Interchange
USB Upper Sideband
USB Usage Sensitive Billing
USB Universal Serial Bus
USB1 Unscrambled Binary 1s
USBS User Signaling Bearer Service
USC User Signaling Channel
USC Universal Service Circuit
USC User Signalling Context
USC User Security Component
USC University of Southern California
USCF Usage-Sensitive Call Forwarding
USCM Universal Service Component Model
USD Utility Service Directory
USD User's Supplementary Documents
USD U.S. Dollars
USDC U.S. Digital Carrier System
USDC U.S. Digital Cellular
usec Microsecond
USENET Users Network
USF Uplink Status Flag
USF Universal Service Fund
USG Unix Support Group
USGS U.S. Geological Survey
USHR Unidirectional Self-Healing Ring
USHR/L Unidirectional Line Switching Self-Healing Ring
USHR/P Unidirectional Path Switching Self-Healing Ring
USI User System Interface
USI User Service Information
USI User Service Interaction
USIC U.S. Integrity Center
USID User Sevice Identification
USID User Service Identifier
USIP User Service Information Prime
USIS User-to-User Information message
USITA United States Independent Telephone Association
USIW U.S. Intelco Wireless
USL User System Language
USL Unix System Laboratories
USL Unix Sustems Laboratories
USL Universal Software Load
USM User-based Security Model
USN Unique Sequence Number
USNO United States Naval Observatory
USO Universal Service Order
USO Uniform Service Order
USOC Universal Service Order Code
USOC Uniform Service Order Code
USOL Unsolicited
USP Usage Sensitive Pricing
USP User Service Profile
USP User Service Protocol
USP User Stack Pointer
USP User Service Participant
USPRO U.S. Product Data Association
USPS US Postal Service
USR User-to-User Information Message
USR U.S. Robotics
USRT Universal Synchronous Receiver/Transmitter
USS Unnotiger Schleifenschluss (Unnecessary Loop Closure)
USSD Unstructured Supplementary Service Data
USSG United States Study Group
USTA United States Telephone Association
USTS United States Telephone System
USTSA United States Telephone Suppliers Association
USTWC Usage-Sensitive Three-Way Calling
USW US West
UT Universal Trunk
UT U.S. postal code for Utah
UT Universal Time
UT Upper Tester
UT Unit Test Plan
UT Unit Tested
UT Unit Test
UT Unit Testing
UT Unit Testing Completed
UTA Universal Terminal Adapter
UTAM Unlicensed Ad Hoc Committee for 2GHz Microwave Transition and
Management
UTC Unable-to-Comply
UTC Coordinated Universal Time
UTC Universal Coordinated Time
UTC Universal Time Coordinated
UTC Universal Thin Client
UTCF Upper-Tester Control Function
UTD Universal Tone Decoder
UTD Uniform Theory of Diffraction
UTD University of Texas at Dallas
UTF Universal Text Format
UTF UCS Transformation Format
UTF-8 UCS Transformation Format- 8-Bit Form
UTG Universal Tone Generator
UTI International Universal Time
UTL User Trailer Label
UTL Universal Transport Layer
UTL Utility
UTL1 User Trailer Label 1
UTLB Unified Translation Lookaside Buffer
UTOPIA Universal Test and Operations Physical Interface for ATM
UTP Unshielded Twisted Pair
UTP Universal Trunk Processor
UTP Universal Trunk Protocol
UTP Unit Test Plan
UTR Universal Tone Receiver
UTRA UMTS Terrestrial Radio Access
UTS Unix Time Sharing
UTS Utility Telemetry Service
UTS Universal Test Set
UTSI User To Service Information
UTSL Use The Source, Luke
UTU User-to-User
UTUD User-to-User Data message
UU User-User
UU User to User
UUCP Unix-to-Unix Copy Program
UUCP Unix-to-Unix Copy Protocol
UUI User-to-User Information
UUI User-to-User Indicator
UUi User to User Indicator
UUID Universally Unique Identifier
UUID Universal Unique Identifier
UUIE User-User Information Element
UUS User-to-User Signaling
UUS User to User Service
UUSBL1 User-to-User Signaling Billing Records (Intranetwork)
UUSBL2 User-to-User Signaling Billing Records (Internetwork)
UUSCC User-to-User Signaling with Call Control
UUSI User-to-User Signaling Implicit
UUT Unit Under Test
UUT User-to-User Signaling Transfer
UV Ultraviolet
UV Utterance Verification
UV Undervoltage
UVG Universal Voice Grade
UVM Universal Voice Messaging
UW UnixWorld (periodical)
uW Microwave
uW Microwatt
UWM Universal Window Manager
uwm Universal Window Manager
UXGA Ultra XGA
UXLA Universal Translations
UXS MDII: Unexpected Stop
UY ISO country code for Eastern Republic of Uruguay
UZ ISO country code for Uzbekistan
V Overflow V Signal V Valid V Value only V Variable V Variable length V Vector V verhogen (Dutch for "to increment") V Version V vertical V Virtual Terminal Service V Voice V Volt(s) V Voltage V Vote (ETSI) V&H Vertical and Horizontal V&V Validation and Verification V(A) Acknowledge state Variable V(M) Recovery State Variable V(r) Local State Variable (receive) V(R) Receive State Variable V(s) Local State Variable (send) V(S) send state Variable V(SD) SenD state Variable V.FC V.Fast Class v.i.s. Viewable Image Size V/C View/Controller V+D Voice + Data (TETRA) V+D Voice Plus Data V4FSL System V Release 4 File System Layout V86 Virtual-86 VA ISO country code for Vatican City State VA U.S. postal code for Virginia Va Varargs VA Vertical Application VA Virtual Address VA Visual Architect VA VisualAge VA Viterbi Algorithm VA Voice Activity VA volt ampere VA Voltage Amplifier VA Volt-Amperes VAAA Voice Activated Auto Attendant VAB Voice Answer-Back VAC Vacant VAC Value Added Carrier VAC VFG Access Control VAC VMEbus Address Controller VAC Volts AC VAC Volts Alternating Current VACM View-based Access Control Model VACT Vacant Code Treatment VAD Value-Added Dealer VAD Value-Added Developer VAD Voice Activated Dialing VAD Voice Activity Detection VAD Voice Activity Detector VADS Value Added Data Service (FTAM) VADSL Very High Speed ADSL VAFC VESA Advanced Feature Connector VAI Video Assisted Instruction VAIO Video Audio Integrated Operation VAIVR Voice-Activated Interactive Voice Response VAJ Visual Age for Java VAL Valhalla VAL Validation VAL Value VAM Virtual Address Method VAMP DMS-250 AIN Message Processing VAN Value-Added Network VAN VDT Access Network VANC Voice Activated Network Control VANS Value Added Network Service(s) VANSGL Value Added Network Services General Licence VAP VADSL Access Point VAP Vaule-Added Process VAP Videotext Access Point VAPD Voice Activated Premier Dialing VAPN Virtual Access to Private Networks VAR Value-Added Reseller VAR Variable VAR Variable Name (HTML tag) VAR Visual Aural Range VAS Value Added Service VAS Video Application Signaling VASP Value-Added Service Provider VASP Virtual Analog Switching Points VASSCS Video-Audio Service Specific Convergence Sublayer VAT Value Added Tax VATP Vector Adaptive Transform Processing VAU Video Access Unit VAVE Value-Added-Value Engineering VAX Virtual Address Extension VAX Virtual Address eXtension (Digital Equipment Corp. Computer Family) VB Variable Binding VB Variable-Blocked VB Visual Basic VB Voice Bank VB4 Visual Basic 4.0 VB5 Visual Basic 5.0 VB6 Visual Basic 6.0 VBA Visual Basic for Applications VBC Virtual Bearer Channel VBC Virtual Business Card VBD Voiceband Data VBE Voice Band Enhancement VBE/AI VESA BIOS Extension/Audio Interface VBI Vertical Blanking Interval VBI Vertical-Blanking Interval VBL Vertical Block Line VBN VDT Backbone Network vBNS Very High Speed Backbone Network System vBNS Very-High-Speed Backbone Network Service VBPSM Variable Block Pool Store Manager VBR Variable Bit Rate VBR Vector Base Register VBR+ Enhanced Variable Bit Rate VBRI VCO Basic Rate Interface VBR-NRT Non-Real-Time Variable Bit Rate VBR-RT Real-Time Variable Bit Rate VBS Variable Bitrate Services VBS Variable-Blocked-Spanned VBS Voice Broadcast Service VBS Volume Boot Sector VBUS Virtual Bus V-Bus Vertical Bus VBX Visual Basic Custom Control VBX Visual Basic Extension VC ISO country code for Saint Vincent and the Grenadines VC Vacant Code VC Version Control VC Virtual Call VC Virtual Channel VC Virtual Circuit VC Virtual Container VC Virtul Connection VC Visual C++ VC Voice Channel VC Voltage Common VC/CM Version Control/Configuration Management VC++ Visual C++ VC-11 Virtual Container-Level 11 VC-12 Virtual Container-Level 12 VC-2 Virtual Container-Level 2 VC-3 Virtual Container-Level 3 VC-4 Virtual Container-Level 4 VC40 Visual C++ Version 4.0 VCA MDII: Vacant Code Announcement VCA Vacant Code Announcement VCA ViewCall America VCA Voice Communications Adapter VCA Voice Connecting Arrangement VCA Voltage Controlled Amplifier VCC Common Collector (Supply) Voltage VCC Video Compact Cassette VCC Video Composing Chain VCC Virtual Card Calling VCC Virtual Channel Connection Vcc Virtual Channel Connection Component VCC Virtual Channel Controller VCC Voice Controlled Carrier VCCE Virtual Channel Connection Endpoint VCCO Voltage-Controlled Crystal Oscillator VCCT Virtual Channel Connection Termination VCD Variable Center Device Vcd Virtual Channel Descriptor VCD Virtual Communication Device VCDR Variable Call Detail Recording VCDX Very Compact Digital Exchange VCF Video Command "Freeze Picture Request" VCF Virtual Channel Forwarder VCF Voltage Controlled Filter VCG Vector CardioGraphy VCG Vertical line through Centre of Gravity VCG Video Clock Generator VCH Virtual Circuit Handler VCH Voice Channel VCI Virtual Call Identifier VCI Virtual Channel Identifier (B-ISDN) VCI Virtual Circuit Identifier VCI Virtual Connection Identifier VCL Vertical Cavity Laser VCL Virtual Channel Link VCL Visual Component Library VCM Video Composing Module VCM Virtual Channel Maintenance VCM Virtual Channel Manager VCM Voltage-Controlled Multivibrator VCN Virtual Circuit Number VCN Virtual Corporate Network VC-n Virtual Container-Level n VCNA Virtual Customer Network Access VCO Video Conferencing Operations VCO Virtual Captive Office VCO Virtual DMS Captive Office VCO Voltage-Controlled Oscillator VCOS Visible Caching Operating System VCOTBM Virtual Captive Office Test Bed Manager VCP Video Cassette Player VCP Video Controller and Processor VCP Voice-Channel Protocol VCPI Virtual Control Program Interface VCPL Voice Call Processing Language VCR Video Cassette Recorder VCR Voltage Controlled Resistor (FET) VCR Voluntary Content Rating vcrm Voice Channel Resource Manager VCS Version Control System VCS Virtual Call Service VCS Virtual Cell Spreadsheet VCS Virtual Circuit Switch (Datakit) VCS Virtual Circuit System VCSEL Vertical Cavity Surface Emitting Laser VCT Vacant Code Treatment VCTV Viewer-Controlled Cable Television VCU Video Command "Fast Update Request" VCX Virtual Channel Cross-Connect VC-x Virtual Container-x VCXO Voltage Controlled Crystal Oscillator VD Virtual Destination VDAS Voice Data Acquisition System VDB Visitor Database VDBT Visual Database Tools VDC Virtual Device Coordinates VDC Volts DC VDC Volts Direct Current VDD Positive Supply Voltage VDD Version Description Document VDD Virtual Device Driver VDD Virtual Display Driver VDE Verband Deutsche Elektrotechniker VDE Verein Deutscher Elektroingenieure VDE Verein Deutscher Elektrotechniker VDE Voice Data Entry VDI Video Data Input/Interface VDI Video Device Interface VDI Virtual Device Interface (TOP, today CGI) VDK Virus Developer's Kit VDLC Virtual Data Link Capability VDM Virtual Device Machine VDM Virtual Device Memory VDM Virtual DOS Machine VDMA Variable Destination Multiple Access VDN Variable Directory Number VDN Vector Directory Number VDN Virtual Data Network VDN Voice on Data Network VDP Video Display Processor VDP Voice/Data Protection VDPAC Voice Data Protection Active/Inactive Status VDPAM Voice Data Protection for Analog Member of EKTS VDPFCC Voice Data Protection- Full- Customer Controlled VDPFF Voice Data Protection- Full- Fixed VDPLCC Voice Data Protection- Limited- Customer Controlled VDPLF Voice Data Protection- Limited- Fixed VDR Vertical Developer Relations VDR video disk recorder VDR Voice Digitization Rate VDR Voltage-Dependent Resistor VDS Variable Drop-Size VDS Video Distribution System VDS Virtual DMA Services VDS Vocabulary Development System VDS Voice-prompt Development System VDSL Very Asymmetric Digital Subscriber Loop VDSL Very High-Speed Digital Subscriber Loop VDSL Very-High-Bit-Rate Digital Subscriber Line VDT Video Dial Tone VDT Video Dialtone VDT Video Display Terminal VDT visual display terminal VDU Video Display Unit VDU visual display unit VDV Vorbestellte Dauerwahlverbindung (Semi-Permanent Connection) VDX Videotex VE ISO country code for Republic of Venezuela VE Validating Entity VE Vermittlungseinheit (Switching Equipment) (Exchange/Switch) VE Version Editor VE:A International Gateway VE:F Transit Switch VE:N Vermittlungseinheit fur Netzubergange (National Gateway) VE:S Vermittlungseinheit fur S-130 Verkehr (Service Switch) VEA Virtual Environment Architecture VEBEL Verkehrsbelastung DV-System zur Bereitstellung von Verkehrs-belastungswerten (OAM application for traffic monitoring) VEBS VCO EBS VELC Voice Excited Linear Coding VELCOR VELocity CORrection VEM Vertical Editing Mode VEMM Virtual Extended Memory Manager VEMMI Videotex Enhanced Man-Machine Interface VEN Virtual Equipment Number VENAD Vendor New Application Development VENUS Very Extensive Non-Unicast Service VER Verified VER Verify(ing) Veronica Very Easy Rodent-Oriented Netwide Index to Computerized Archives VESA Video Electronics Standards Association VESPPOR Vendor Software Product Ports or Reimplementations VEST Voice English-Spanish Translator Vf feeding Voltage VF Vacuum Fluorescent VF Variable Format VF Variance Factor VF Virtual File VF Virtual Function VF Voice Frequency VFA Volunteer Fire Alarm VFAT Virtual File Allocation Table (Windows 95 File System) VFC Vertical Form Control (Printers) VFC Video Feature Connector VFC Voice-Frequency Channel VFC Voltage to Frequency Converter VFC Voltage-to-Frequency Converter VFCT Voice Frequency Carrier Telegraph VFD Vacuum Flourescent Display VFFT Voice Frequency Facility Terminal VFG Virtual Facility Group VFGLA Virtual Facility Group Look Ahead VFIP Voice File Interchange Protocol VFL Voice Frequency Line VFL Voice Frequency Link VFN Vendor Feature Node VFO Variable Frequency Oscillator VFR Voice Frequency Repeater VFRAD Voice Frame Relay Access Device VFS Virtual File Store (FTAM) VFS Virtual File System VFS Voice-prompt File System VFSM Virtual Finite-State Machine VFT Very Fast Track VFT Voice Frequency Telegraphy VFT Voice Frequency Terminal VFTG Voice Frequency Telegraph VFW Video for Windows VG ISO country code for British Virgin Islands VG Voice Grade VG Volume Group VGA Variable-Gain Amplifier VGA video graphics adapter VGA Video Graphics Array VGB Virtual Group Busy VGC Voice Grade Circuit VGCS Voice Group Call Service VGDA Volume Group Descriptor Area VGE Voluntary Group of Experts VGF Voice Grade Facility VGI Voice Group Interface VGRA Volume Group Reserved Area VGSA Voice Grade Special Access VGSA Volume Group Status Area VH Vertical High VH Videotex Host V-H Vertical-Horizontal VH-1 Video Hits 1 VHADSL Very High-Bit-Rate Asymmetrical Digital Subscriber Line VHD Very High Definition VHD Very High Density VHD Very High Density (Video Disk Format, JVC Inc.) VHDL VHSIC Hardware Description Language VHDSL Very High-Frequency Digital Subscriber Loop VHE Virtual Home Environment VHF Very High Frequency (30...300 MHz) VHLL Very High Level Language VHPIC Very High Performance Integrated Circuit VHS Video Home System VHSI Very High Scale Integration VHSIC Very High Speed Integrated Circuits VHSIC Very High-Speed Integrated Circuit VHS-S Super VHS VI ISO country code for U.S. Virgin Islands VI Virtual Image VI Virtual Interface VI Visual Interactive VI Voice and Voiceband Data Information VI Voice and Voiceband Information VI Voice Interface VI Voiceband Information VIA Vendors' ISDN Association VIA Versatile Interface Adapter VIA Videotex Interworking Architecture VIA Virtual Interface Architecture VIA Virtual Interworking Agent VIAS Voice Intelligibility Analysis Set VIC VMEbus Interface Controller Vice Vast Integrated Computing Environment VICS Voluntary Interindustry Communication Standards (EDI) VID Video Identifier VID Virtual Identifier VID Virtual TID VIDF Vertical side of Intermediate Distribution Frame VIDLC Bellcore Integrated Digital Loop Carrier protocol VIEW Virtual Interface Environment Workstation VIF Variable Information Field VIFF Visualization/Image File Format VIG Virtual Interface Group VIM Vendor-Independent Messaging VIMT Virtual Intermachine Trunk VINCE Vendor Independent Network Control Entity VINES Virtual Networking System VIO Virtual Input/Output VIP Very Important Person VIP Video Information Provider VIP VINES Internet Protocol VIP Virtual Internet Protocol VIP Voice Interactive Phone VIPC VINES Interprocess Communications Protocol VIP-NI Video Information Provider Network Interface VIQR Vietnamese-Quoted Readable Specification VIR Vertical Interval Reference VIR Virtual Input Register VIR Vulcanised India Rubber (insulation) VIRPS Visual Information Response and Communication Processing System VIRS Vertical Interval Reference Signal (Video) VIRUS Vital Information Resources Under Siege VIS Vector Instruction Set VIS Via International Switch vis Viewable Image Size VIS Voice Information System ViSCA Video System Control Architecture VISCII Vietnamese Standard Code for Information Interchange VISIT Visual Interactive Technology VISS Voice Interface Service Supervisor VIT Virtual ISDN Terminal VIT Voice Input Technology VITA Virtual Integrated Transport and Access VITA VMEbus International Trade Association VITC Vertical Interval Time Code VITC Vertical Interval Time Code (Video Tape Recorder) VITS Vertical Interval Test Signal (Video) VIU Vehicle Interface Unit VIU Video Information User VIU Videotex Interface Unit VIU Visitor Database Interface Unit VIU Voice Interface Unit VIU-NI Video Information User Network Interface VIW Video Information Warehouse VJ Van Jacobsen IP Header Compression VJ Visual Java VJ++ Visual Java++ VK Virtual Key VL Verbindungsleitung (Trunk) Vl Vermittlungsleitung (Trunk) VL VESA Local Bus VLAN Virtual Local Area Network VLB VESA Local Bus VLBI Very Long Baseline Interferometry VL-Bus VESA Local Bus VLC Variable Length Code VLC Variable Length Coder VLC Variable Length Coding VLC Voice Line Card VLCM Virtual Line Concentrating Module VLD Variable Length Decoder VLDB Very Large Database VLDS Very Large Data Storage VLE Variable-Length Encoder VLEN Virtual LEN VLF Vertical Laminar Flow VLF Very Low Frequency VLF Very Low Frequency (3...30 kHz) VLF View Layout File VLFA Very Low Frequency Array (50kiloHertz..30MegaHertz, lunar project) VLI Variable-Length Integer VLIW Very Long Instruction Word VLM Very Large Memory VLM Virtual Line Module VLM Virtual Loadable Module VLN Virtual Line VLP Video Laser Player VLP Virtual Connection Loss Priority VLR Visitor Location Register VLR Visitor Location Register (GSM term) VLR Visting Location Registry VLSI Very Large-Scale Integration VLSIC Very Large Scale Integrated Circuit VLSM Variable-Length Subnet Mask VM Verkehrsmanagement (Traffic Management) VM Virtual Machine VM Virtual Memory VM Virtual-8086 Mode VM Voice Mail VM Voltage Multiplier vm Voltmeter VMA Valid Memory Address VMA Verkehrsmanagement Ausland (Deutsche Telekcom traffic management center for international traffic) VMA Video Administration module VMA VME AIX VMAAP Visual Maintenance and Admonistration Panel (ATT) VMAC Voice Mobile Attenuation Code VMAE Voice Mail Association of Europe VMAP Virtual MAP VMB Voice Mail Box VMC Variable Message Cycle VMC Vendor Marketing Center VMC VESA Media Channel VMC Voice Messaging Coder VMD Virtual Manufacturing Device (MMS) VMDF Vertical side of Main Distribution Frame VMDF Virtual Main Distribution Frame VME Versa Modul on Eurocard VME Versa Module Eurocard VMEA Voice Mail Easy Access VMESS Verkehrsmessungen (operations system for traffic measurement) VMI Vector Management Interface VMI Verkehrsmanagement Inland (Deutsche Telekom traffic management center for national traffic) VMI Virtual Memory Interface VMIC VME Microsystems International Corporation VMLA Virtual Mobile Location Area VMM Virtual Machine Management VMM Virtual Machine Manager VMM Virtual Memory Management VMM Virtual Memory Manager VMM Visual Meeting Minutes VMM Voice Mail Machine VMNSS Voice Messaging Network Support Service VMOS Vertical Metal Oxide Semiconductor V-MOS V-groove Metal Oxide Semiconductor VMR ETS-4 codeswitch controller (Swedish) VMR Value-Managed Relationship VMR Virtual Meeting Room VMS Vantage Modular Set VMS Versa Modul Serial bus (similar VME-Bus) VMS Virtual Meeting Service VMS Virtual Memory System VMS Virtual Memory System (Operating System for DEC VAX Computer) VMS Voice Mailbox Service VMS Voice Messaging Service VMS Voice Messaging System VMSC Visited MSC V-MSC Visited MSC VMSR Voice Message Storage and Retrieval VMSRID Valid MSRIDs VMT Virtual Method Table VMTM Virtual Maintenance Trunk Module VMTP VDT Message Transfer Part VMTP Versatile Message Transaction Protocol VMTP-T VDT Message Transfer Part-Translator VMU Volume Maintenance Utility VMUIF Voice Messaging User Interface Forum VMW Vertically Modulated Well VMWI Visual Message Waiting Indicator VMX Voice Message Exchange VMZ Verkehrsmanagement Zentrum (OAM application for traffic management via Q3) VN ISO country code for Socialist Republic of Viet Nam VN Verify Number VN Version Number VN Virtual Network VNCA Virtual telecom access method Node Control Application (NetView) VNCA VTAM Node Control Application VNEP Virtual Network Element Protocol VNET Virtual Network VNIC Voltage Negative Impedance Converter VNK Vermittelnder Netzknoten (Network Switching Element (Node)/Loca Exchange) VNL Via Net Loss VNLF Via Net Loss Factor VNN Vacant National Number VNODE Virtual Node VNPT Vietnam Post and Telecommunications VNR Van Nostrand Reinhold VNR Virtual Network Router VNS Virtual Network Service VNS Virtual Network Switching VNS Virtual Networking System VO Validation Office VO Verification Office VO Video Object VO Visual Objects VOA Variable Optical Attenuator VoA Voice over ATM VOB Versioned Object Base VOB Virtual Output Buffer VOC Video Operations Center VOC Volatile Organic Compound vocoder Voice Operated Coder VOCSU Voice Operated Control Switching Unit VoD Video on Demand VOD video-on-demand VODAS Voice Operated Device Anti-Singing VOFR Voice over Frame Relay VOGAD Voice Operated Gain Adjusting Device VOGAD Voice-Operated Gain Adjustment Device VOI Voice Over Internet VoIP Voice over IP (Internet Protocol) VOL Volume VOL Volume Label VOL1 Volume Label 1 VOLCAS Voice Operated Loss Control And Echo/Singing Suppression VOM Voice Only Messaging VOM Volt Ohm Meter VOM Volt/Ohm Meter VON Voice On the Net V-ONU Video ONU VOP Vote and Opinion Poll VOP/VOT Vote and Opinion Poll/Televoting Services VOR Verification Office Report VOR Very-high-frequency Omnidirectional Range (Avionics) VOS Virtual Operating System VOSS Virtual Object Storage System VOT Televoting VOT Televoting Services VOT Visio OLE Testbed VOW Verbindung Ohne Wahl (Direct Connection Without Dialing) VOW Voice Order Wire VOX Voice Operated switch VOX Voice Operated Transmission VP Vice-President VP Virtual Partitioning VP Virtual Party VP Virtual Path VP Visual Programmer VP Voltage Plus VP/VC Virtual Path/Virtual Circuit VPA Valid Peripheral Address VPA Vertical Position Absolute VPA Virtual Point of Attachment (TETRA) VPA Voice Path Assurance VPBX Virtual PBX VPC Very Personal Computer VPC Virtual Path Connection Vpc Virtual Path Connection Component VPC Virtual Position Controller VPC Virtual Process Communications VPCC Virtual Path Cross-Connect VPCE Videotex Presentation Control Element VPCE Virtual Path Connection Endpoint VPCI Virtual Path Connection Identifier VPCT Virtual Path Connection Termination Vpd Virtual Path Descriptor VPD Virtual Printer Driver VPD Vital Product Data VPDB VP Trunk Group Database VPDE Videotex Presentation Data Element VPDN Virtual Private Data Network VPDN Virtual Private Dial-Up Networking VPF Virtual Path Forwarder VPF Virtual Private Facility VPG Virtual Path Group VPI Virtual Path Connection VPI Virtual Path Identifier VPI Voice-Processing Integration VPIM Voice Profile for Internet Mail VPL Virtual Path Link VPL Virtual Private Line VPLMN Visited PLMN VPLMN Visited Public Land Mobile Network VPLT Virtual Path Link Termination VPM Virtual Path Multiplexer VPM Virtual Peripheral Module V-PM Virtual Peripheral Module VPN View Plane Normal VPN Virtual Page Number VPN Virtual Private Network VPNA Virtual Private Networking over ATM vPoP Virtual Point of Presence VPOTS VCO POTS VPP Voice Processing Platform VPP Volts Peak-to-Peak VPR Vertical Position Relative VPROC Verify Procedure VPS Video Programming System VPS Virtual Path Service VPS Voice Processing System VPSL Virtual Party Service Link VPT Virtual Path Terminating Equipment VPT Virtual Path Terminator VPT Voice Plus Telegraph VPTR Virtual Function Pointer VPU Video Presentation Unit VPU Voice Processing Unit VPW Voice Prompt Workstation VPX Virtual Path Cross-Connect System VQ Vector Quantisation coding VQ vector quantization VQ Voice Quote VQB Visual Query Builder VQL Variable Quantizing Level VQL Visual Query Language VQS Visual Query System VR Variable Rate VR Version Registry VR Virtual Reality VR Virtual Route VR Voltage Regulator VR Voltage Restricted VRAM Variable-Rate Adaptive Multiplexing VRAM Video RAM VRAM Video Random Access Memory VRB Visual Report Builder VRC Vertical Redundancy Check VRC Video Random-access-memory Controller VRC Virtual Redundancy Check VRC VR Control VRCP Voice Recognition Call Processing VRE Voltage Restricted Extended VRI Varistor VRLA Valve Regulated Lead Acid VRM Voltage Regulator Module VRML Virtual Reality Markup Language VRML Virtual Reality Modeling Language VRN Virtual Route Number VROOMM Virtual Run-time Object-Oriented Memory Manager VRP View Reference Point VRPRS Virtual Route Pacing ReSponse (SNA) VRS Video Response System (Japan NTT) VRS Voice Response System VRT Voltage Reduction Technology VRTIF Virtual RTIF VRTX Versatile Real-Time Executive VRTX/OS Virtual Real-Time eXecutive Operating System VRTXsa Versatile Real-Time Executive/Scalable Architecture VRU Voice Response Unit VS Vendor-Specific VS Verification Sequence VS Video Server VS Videotex Service VS Virtual Scheduling VS Virtual Source VS Virtual Storage VS Virtual System VS Visual Smalltalk VS Voltage Shield VS Volume Server VS/VD Virtual Source/Virtual Destination VS1 Virtual System 1 VS2 Virtual System 2 VSA Video Serving Area VSA Virtual Scheduling Algorithm VSA Virtual System Architecture VSAM Virtual Sequential Access Methode VSAM Virtual Storage Access Method VSAT Very Small Aperture Terminal VSB Variable Split Band VSB VERSAbus VSB vestigial sideband VSB Vestigial SideBand amplitude modulation (VSB/AM) VSB VME Subsystem Bus VSC Vendor Service Center VSC Vertical Service Code VSC Videotex Service Center VSCCP VDT Signaling Connection Control Part VSCD Vertical Service Code Digits VSCP VDT Session Control Part VSD Vendor Specific Device VSD Vendor Supplied Driver VSE Virtual System Extension VSE Visual Smalltalk Enterprise VSE Voice Storage Equipment VSELP Vector Sum Excited Linear Prediction VSELP Vector-Sum Excited Linear Predictive Coding VSF Voice Storage and Forwarding VSF Voice Store and Forward VSI VMEbus Slave Interface VSIA Virtual Socket Interface Alliance VSID Virtual Segment ID VSIF Video Services Industry Forum VSIM VSOS Simulator VSLE Very Small Local Exchange VSLE Visual Screening List Editing VSM Variable Block Pool Store Manager VSM Verein Schweizerischer Maschinen-industrieller normalisation (CH) VSM Virtual Storage Management VSM Visual System Manager VSMF Visual Search on MicroFilm VSMO Very Stable Master Oscillator VSN Voice Service Node VSN Voice Services Node VSN Volume Serial Number VSNL Videsh Sanchar Nigam Ltd. VSO Very Small Outline (IC Package) VSO VITA Standards Organization VSOS Virtual Switch Operating System VSP Vector Signal Processor (Zoran Inc.) VSP Video Signal Processor VSP Virtual Switching Point VSP Voice Services Processor VSP Voice Session Processor VSPM Virtual Spectrum Peripheral Module VSPRM Voice Services Processor Resource Module VSR Very Small Remote VSR Video Shift Register VSR Voice Store Retrieve (Codec/ Telecom.) VSS Vector Switch Software VSS Voice Storage System VSt Vermittlungsstelle (Switch/Exchange) VST Visual Smalltalk VST Volume Sensitive Tariff VStKNr Vermittlungsstellen-Kennummer (Switch ID) VSU Video Service Unit VSU Videotex Service Unit VSWR Voltage Standing Wave Ratio VSYNC Vertical Sync VT U.S. postal code for Vermont VT Vacuum Tube VT Vertical Tab VT Vertical Tabulation VT Vertical Tabulator VT Vertical Temporal High VT Video Telephone VT Video Telephony VT video-tape VT Videotex Terminal VT Virtual Target VT Virtual Terminal VT Virtual Terminal Service VT Virtual Tributary VT Virtual Trunk VT Visual Thought VT SPE Virtual Tributary Synchronous Payload Envelope VTA Virtual Terminal Agent (Networks) VTA Virtual Trunk Agency VTA Virtual Trunk Agent VTAF VoiceType Application Factory VTAM Virtual TAM VTAM Virtual Telecommunications Access Method (SNA) VTAM Virtual Terminal Access Method VTAME VTAM Extended VTB Visual Table Builder VTBL Virtual Function Table VTBM VCO Test Bed Manager VTBM Virtual Tributary Bandwidth Manager VTC Vehicular Technology Conference VTC Vienna Technology Center VTC Virtual Terminal Control VTD Virtual Timer Driver VTD Volume Tracking Driver VTDS Voice Transparent Data Service VTE Video Transfer Engine VTE Virtual Terminal Environment VTE Virtual Test Environment VTG Virtual Tributary Group VTHC Virtual Testheads Complex VTI Virtual Topology Identifier VTID Virtual TID VTIF VCO Terminal Interface VTL Variable-Threshold Logic VTM Virtual Topology Management VTMP Virtual Topology Management Protocol VTN Vietnam Telecom National VTNA Virtual Transit Networking over ATM VTO voltage-tuned oscillator VTOA Voice and Telephony Over ATM VToA Voice Trunking over ATM VTOC Volume Table of Contents VTOH Virtual Tributary Overhead VTOL Vertical Take Off and Landing VTP Virtual Terminal Protocol VTPM Virtual Terminal Protocol Machine VTR Video Tape Recorder VTRP Virtual Trees Routing Protocol VTS Vertical Tabulation Set VTS Vessel Traffic Systems VTS Virtual Telephony Server VTS Virtual Terminal Service VTSP Virtual Terminal Switch Profile VTVM Vacuum Tube Voltmeter VTX VideoTeX Vtx VideotextVTX host The components dedicated to Videotex service VTx-Nc concatenated Virtual Tributary VU ISO country code for Vanuatu Vu Voice unit VU Volume Unit VUE Visual User Environment VUI Video User Interface VUP View Up Vector VUP Virtual User Port VUS Voice-Unvoiced-Silence VUSP Virtual User Service Participant VVL Vendor Validation Lab VVM Voice, Video and Multimedia VW VisualWorks VWB Visual WorkBench VWF Verkehrs Warn-Funk (Road Traffic Information System, ARI) VWP Virtual Wavelength Path VWP Voluntary Work Programme (ETSI) VWS View Store VXA VSOS Extended Architecture VxD Virtual Device Driver VxFS Veritas File System VXI Versa modul on eurocard eXtension for Interfacing VXI VME Extension for Instrumentation VXIbus VMEbus Extensions for Instrumentation VXPM Virtual XPM
W Watt W Watt(s) w Wechselseitig (Two-Way) W West W Window W Word w WORD (unsigned word) or UINT (unsigned int) W Write W- Wideband W/S Workstation W3 World-Wide Web (WWW) W3C W3 Consortium W3C World Wide Web Consortium W3O W3 Organization W95 Microsoft Windows 95 WA U.S. postal code for Washington WA Work Area WABI Windows Application Binary Interface WABT WAit Before Transmission WAC Wide Area Centrex WAC Wireless Access Controller WACA Write Access Connection Acceptor (VT) WACI Write Access Connection Initiator (VT) WACK WAit before ACKnowledgement WACS Wide Area Communications System WACS Wireless Access Communications System WADM Wavelength Add/Drop Multiplexer WADM Wavelength Add-Drop Multiplexer WADS Wide Area Data Service WAFL Write-Anywhere File Layout WAH Work At Home WAHT Weighted Average Holding Time WAI Who Am I WAIS Wide Area Information Server WAIS Wide Area Information Service WAIS Wide Area Information System WAIT Wait state WAITS Wide Area Information Transfer System WAK Wait before AcKnowledgement WAL Write-Ahead Log WAL2 Walsh Function 2 WAM Web Application Manager WAMIS Wireless, Adaptive and Mobile Information Systems WAMP Wavelength Amplifier WAN Wide Area Network WANN Wide Area Network Node WAP Wide-Area Paging WAP Wireless Application Protocol WAR Weekly Activity Report WARC World Administration Radio Conference WARC World Administrative Radio Conference WAS Works As Specified WASM Watcom Assembler WATFOR Waterloo FORTRAN WATM Wide-Area ATM WATM Wireless Asynchronous Transfer Mode WATM Wireless ATM WATS Wide Area Telecommunications Service WATS Wide Area Telephone Service WATTC World Administrative Telegraph and Telephone Conference WAV Waveform-Audio File WAV Windows waveform WAVAR Write Access Variable WAVAR Write Access VARiable (VT) WAVE Wide Area Voice Exchange WB Result Write-Back WB Warner Brothers Wb Weber WB Welcome back WB Wideband WB Workbook WB Write Back WBA Wait Before Acknowledgement (BSC) WBA Warning, Bulletin, or Alert WBAC WATS Band Access Code WBAs Warnings, Bulletins, and Alerts WBC Wide Band Channel WBC Wideband Coupler WB-DACS Wideband DACS WBEM Web-Based Enterprise Management WBERT Wideband Bit Error Rate Test WBFM Wideband Frequency Modulation WBS Wideband System WBS Wireless Broadband System WBS Work Breakdown Structure WBT Web-Based Training WBT Windows-Based Terminal WB-TDMA Wideband TDMA WBVTR Wideband Video Tape Recorder WC Wire Center WC Wire Chief WC World Coordinate WC++ Watcom C++ WCA Wireless Cable Association WCB Word Command Buffer WCC WAN Communications Controller WCC Wireline Common Carrier WCDMA Wideband Code Division Multiple Access W-CDMA Wideband CDMA W-CDV Tungsten Chemical Vapor Deposition WCIT World Conference on International Telecommunications WCL Widget Creation Library WCN Watchdog Counter WCN Wireless Computer Network WCPE Wireless Customer Premises Equipment WCPN Wireless Customer Premises Network WCR Watchdog Circuit Reset WCR With Carriage Returns WCS Wireless Communications Service WCS World Coordinate System WCS Writable Control Store W-CTI Wireless Computer-Telephony Integration WCTP Wire Chief Test Panel WD Western Digital WD Wiring Diagram WD Working Draft WDC Wireless Development Centre W-DCPA Wireless Distributed Call Processing Architecture WDCS Wideband Digital Cross-Connect System W-DCS Wideband Digital Crossconnect System WDDI Wavelength Distributed Data Interface WDL Windows Driver Library WDM Wave-Division Multiplexing WDM Wavelength Division Multiplex WDM Wavelength Division Multiplexed WDM Wavelength Division Multiplexer WDM Wavelength Division Multiplexing WDM Wavelength-Division Multiplexer WDM Win32 Driver Model WDM Windows Driver Model WDS Wireless Data System WDSS Workstation Dependent Segment Storage WDT Watchdog Timer WDT Weighted Down Time WE Warm Entry WE Warm Exit WE Weather WE Western Electric WE Write Enable WE/WE Warm Entry/Warm Exit WebGMS Web Gate Management System WebSCF Web Software Change Form WECo Western Electric Company WEI Word Error Indicator WELL Whole Earth 'Lectronic Link WEP Windows Entry Point WEP Windows Exit Procedure WEP Wired Equivalency Privacy WEPL Weighted Echo Path Loss WER Word Error Rate WF ISO country code for Wallis and Futuna Islands WF Wildcard Filter WFA Work and Force Administration WFA Work Force Administration WFA Workforce Administration WFA/DI Work and Force Administration/Dispatch In WFA/DO Work and Force Administration/Dispatch Out WFA-C Work and Force Administration/Control WFB Wireless Fixed Base WFC Windows Foundation Classes WFD Waveform Distortion WFG Waveform Generator WFG Windows For workGroups WfM Wired for Management WFMTUG World Federation of MAP/TOP User Groups WFQ Weighted Fair Queuing WFW Windows for Workgroups WfWG Windows for Work Groups WG Wandel & Goltermann WG WaveGuide (Microwaves) WG Work Group WG Working Group WGA Work Group Administrator WGC Walking Grey Code WGCC Walking Grey Code Counter WGMS Web Gate Management System WGR Waveguide Grating Router WGS Work Group System WGS WorkGroup Solutions Inc. WGSE WG Spectrum Engineering (ERC) WGSM Wireless Global Switching Module WH Walsh-Hadamard WH WattHour WHAG Windows Help Authoring Guide WHAT Windows Help Authoring Tools WHAT Wireless Hybrid Asynchronous Time-Bounded MAC W-HDTV Wide High DefinitionTeleVision WHMS Warehouse Management System WHT Walsh-Hadamard Transform WI U.S. postal code for Wisconsin WI Work Item (ETSI) WIC Whole Internet Catalog WIDL Web Interface Definition Language WILL Wireless In Local Loop WIMG Write-Through, Caching-Inhibited, Memory-Coherency, and Guarded Attributes (Memory Mode Access Bits) WIMP Window-Icon-Mouse-Pointing (Windows, Icons, Mouse and Pulldown Menu) WIMP Windows, Icons, Menus, Pointers WIMP Workgroup Information Management Program Win Microsoft Windows WIN Windows Into Nortel WIN Wireless Intelligent Network WIN Worldwide Intelligent Network Win16 16-Bit Windows API Win32 32-Bit Windows API Win32c Win32 Compatible Win32s Win32 Subset API for 16-Bit Windows Win95 Microsoft Windows 95 WINE Windows Emulator WinG Windows Games Interface WinHEC Windows Hardware Engineering Conference WinNT Microsoft Windows NT WINS Windows Internet Name Service WinSock Windows Sockets WIP Work In Progress WIPO World Intellectual Property Organization (UN) WIRE Workable Interface Requirements Example WIRES Web Based Impact Report Entry System WIS Web Information System WIS Web-based Information System WISDN Wireless Intelligent Services Distributed Network WISE Windows Interface Source Environment WISE Wireless Internet Solution WISE WordPerfect Information Systems Environment wish Windowing Shell WISS Workstation Independent Segment Storage WISURD Worldwide Incremental Software Update Release and Distribution WITS Washington Interagency Telecommunications System WITS Workstation ISDN Terminal Simulator WITT Workstation Interactive Test Tools WIU Wireless Interface Unit WIXC Wavelength Interchanging Crossconnect WIZ Wizard File wk Week WK Wink WKG Working WKS Well-Known Services wksh Windowing Korn Shell WKSH Windowing Korn Shell (USL) WKTS Wireless Key Telephone System WL Wireless WLAN wireless local area network WLC World Line Card WLC-A World Line Card A WLC-B World Line Card B WLDS Wireless-Loop Distribution System WLL Wireless Local Loop WLN Warm Line WM Window Manager WM Window Message WMAC Wireless Media Access Control WMC Watchdog Message Channel WMD Wireless Mobile Data WMF Windows Metafile WMF Windows Metafile Format WMF Wireless Message Format WMI Windows Management Interface WML Warm Line WML Widget Meta Language WMO World Meteorological Organization WMS Writable Microstore WN Wrong Number WNC Wireless Networks Calgary WNIG Wireless Networks and Interconnection Group WO Work Order WO Write-Only WOH Work On Hand WOM Word Organized Memory WOM Write-Only Memory WONA Wireless Open Network Architecture WOOD Write-Once Optical Disk WORM Write-Once-Read-Many (Optical Disk) WoS Web of Science WOSA Windows Open Services Architecture WOTS Wireless Office Telephone System WOW Web-Oracle-Web WOW Windows on Win32 WOW Windows on Windows WOW Wireless On Wireline WOW Woody's Office Watch WP Watchpoint WP Wavelength Path WP Word Processing WP Word Processor WP WordPerfect WP Working Paper WP Working Party WP Working Procedures WP Write Protect WP Write Protected WP/VWP Wavelength Path/Virtual Wavelength Path WPA Wrong Password Attempts WPA Wrong Password Attempts (counter) WPABX Wireless Private Automatic Branch Exchange WPC Wired Program Control WPC Wireless Personal Communications WPC WordPerfect Corporation WPCom Write Precompensation WPD Windows Printer Description WPG WordPerfect Graphics WPG WordPerfect Graphics File WPL Windows Portability Libraries WPM WordPerfect Macro File WPM Words Per Minute WPMS Workstation Performance Monitoring System WPOS Workplace OS WPS Windows Printing System WPS Word Processing System WPS Workplace Shell WPU WordPerfect Units WPVM Windows Parallel Virtual Machine WRAM Windows RAM WRAP Workstation Remote Access Platform WRC World Radio Conference WRC World Radiocommunications Conference WRED Weighted Random Eearly Detection WRI Windows Write File WRK Windows NT Resource Kit WRK Working WRL World Format WRMI We Really Mean It WRQ Write Request WRR Watchdog Reference Register WRS Wavelength-Routing Switch WRS Wind River Systems WRS Working Reference System wrt With Respect To WRTC Working Reference Telephone Circuit WRU Who Are You? WS ISO country code for Independent State of Western Samoa WS Wait State WS Wave Solder WS Window Size WS Window Style WS Wink Start WS Wire Send WS Word Separator WS Work Station WS Workspace WS Workstation WSA Windows Sockets API WSAT Windows Sockets API Tester WSC Wireless Systems Calgary WSCF Web Software Change Form WSD Web Server Director WSF Work Station Function WSG Wired Shelf Group WSH Windows Scripting Host WSI Wafer-Scale Integration WSI Wireless Services Interface WSJ The Wall Street Journal WSL Wipro Systems Limited WSM Wireless Switching Module WSN MDII: No Start Dial- Wink Start, Steady On-Hook WSN Wang Span Network WSP Web Service Provider WSP Wireless Services Provider WSR MDII: No Start Dial- Wink Start, Steady Off-Hook WSR Work Station REGRESS WSR2 Work Station REGRESS II WSS Wavelength Selective Switch WSS Wide Screen Signalling WSS Wideband Switched Service WSS Wireless Subscriber System WSS World Small Switch WSSF Workstation Support Function WSSPR World Small Switch Project WST Wireless Subscriber Terminal WSXC Wavelength Selective Crossconnect WT Wavelet Theory WT Working Team WT World Trade WT Write Through WT Writethrough WTA Wideband Test Access WTAC World Telecommunications Advisory Council WTB Wanted To Buy WTB Wireless Telecommunications Bureau WTC Wakeup Timer Capability WTDC World Telecommunication Development Conference WTDM Wavelength and Time-Division Multiplexing WTF Wanted To Find WTF World Telecommunication Forum WTG Way to go WTK Want To Know WTM Wavelength Terminal Multiplexer WTN Working Telephone Number WTO World Trade Organization WTO Write To Operator WTOR Write To Operator with Reply WTOS Wireless Telecommunications Office Systems WTR Wait-To-Restore WTR Wide Temperature Range WTS Wireless Telephony System WTS Word Terminal Synchronous WTS Workstation Technical Services WTSC World Telecommunication Standardization Conference (former CCITT Plenary Assembly) WU Western Union Telegraph Company WUC Wakeup Call WUCR Wake Up Call Reminder WUCR Wakeup Call Request WUI Web User Interface WUI Western Union International WuOL Wakeup On LAN WUPE Wireless User Premises Equipment WV U.S. postal code for West Virginia WV Work Volume WVAD Wireless Voice-Activated Dialing WVLAN Wireless Virtual Local Area Network WVPN Wireless Virtual Private Network WWB Writer's Workbench WWCJ GTE Automatic Electric World-Wide Communications Journal (periodical) WWD World-Wide Demonstration WWIS World-Wide Information System WWLA Wideband Wireless Local Access WWP Windward Park WWSA World Wide Systems Architecture WWW World-Wide Web (Internet) WWWW World Wide Web Worm WXC Wavelength Cross-Connect WY U.S. postal code for Wyoming WYSBYGI What You See Before You Get It WYSIWYG What You See Is What You Get (Desk-Top Publishing) WZ World Zone WZ1 World Zone 1
X Execute X Extend X Reactance x short used as x-coordinate X Sticky X transparent (BSC) X X Window System X.25 CCITT Recommendation X.25 (for DTE operating in the packet mode) X.25PLP CCITT Recommendation X.25 [4] Packet Layer Procedures X.25SS X.25 Service Supervisor X10 X Window System Version 10 X11 X Window System Version 11 X11R4 X Window System Version 11 Release 4 X11R5 X Window System Version 11 Release 5 X11R6 X Window System Version 11 Release 6 XA CrossConnect Agent XA Exchange Access XA Extended Architecture XA X Window System Atom XAC XA-Core XA-CORE Extended Architecture Core XAI Extended Architecture Interconnect XAL XPM Application Layer XAME Exchange Access SMDS Mapping Entity XA-OM Exchange Access Operations Management XAPIA X.400 Application Programming Interface Association XARENA X-Windows Ameritec Remote Navigator XA-SMDS Exchange Access SMDS XASYSM XA-Core System Maintenance XATC Extended Address Transfer Code Xaw X Window System Athena Widgets Library XB Crossbar XBAF Originating/Terminating BAF modifier service XBAR Crossbar XBERT XPM Bit Error Rate Testing XBL Extension Bell XBL XPM Base Layer XBM Extended Basic Mode XBM Transfer Bitmap XBM X Bitmap XBT Crossbar Tandem xByQ x Bit in y Quaternary (four-level signal) XC Cross-Connect XC Cross-Connection XC X Window System Cursor XCCS Xerox Character Code Standard XCDE X/Open Common Desktop Environment Xcms X Color Management System XCN Cross-Connect XCOFF Extended Common Object File Format XCP Crossthreaded Call Processing XCS 10 Call Seconds XCS X/Open Calendaring and Scheduling API XCVR Transceiver XD transmitter/Distributor XDAT Transmit Data XDB Extended Data Block xdb HP Symbolic Debugger XDCCC X Device Color Characterization Conventions XDF Xrm Decrease Factor XDM X Display Manager XDM XRAY Debug Monitor XDMCP X Display Manager Control Protocol XDR eXternal Data Representation (NFS) XDS Extended Debug System XDS X/Open Directory Service XDS XAPIA and X/Open Directory System API xDSL x-Digital Subscriber Line x-DSL x-Digital Subscriber Line XER Exception Register XFA Call Transfer Allowed XFC Transfer Charge XFD Call Transfer Denied XFER Transfer XFMR transForMeR XFR Transfer XFS WOSA Extensions for Financial Services XGA Extended Graphics Array XGM Cross-Gain Modulation XGMS X-Windows Gate Management System XI X.25 SNA Interconnect XIC X Input Context XID eXchange IDentification (HDLC, LLC) XID Exchange Identifier XID Transaction ID xid Transmission ID XID X-window Identification XIE X Window System Imaging Extension XIM X Input Method Xinu Xinu Is Not Unix XIP eXecute In Place XIP Execute Instruction Pointer XIP Execute-In-Place XIP Execution In Place XIWT Cross-Industry Working Team (US) XK X Window System Key Symbol XL Extended Line XLA Translation XLA Translation Manager XLA Translation Utility XLA translations XLA Translator XLAB Translations Block XLAR Translations and Routing XLBUS Extended Line Card Bus XLC Translation Collector xLC xDSL Line Card XLCM Extended LCM XLFD X Logical Font Description Xlib X Window System Library XLIU X.25/X.75/X.75' Link Interface Unit XLPE cross-Linked Plastic insulation XLS Excel Spreadsheet File XM Exchange Manager Xm X Window System Motif Library XMAN eXtended MAN XMHS Extended Message Handling System XMHS X/Open Message-Handling Service XMIT transMIT XML Extensible Markup Language XMM Extended Memory Manager XMP X/open Management Protocol XMS Extended Memory Specification XMS Extended Multiprocessor System XMT Transmit XMUX trans-MUltipleXer XNS Xerox (Inc.) Network Systems protocol XNS Xerox Network Systems XNS Xerox Networking Systems XNSCP XNS Control Protocol XO crystal Oscillator XOFF OFF-signal XOM X/Open OSI Abstract Data Manipulation API XOM XAPIA and X/Open Object Management API XOMMO Transactor OMMO XON ON- signal XOR eXclusive OR XOT X.25 Over TCP XOW Express Order Wire XPACS X-Windows Patch Administration Control System XPAM Transmit Pulse Amplitude Modulation XPC X.25 Protocol Controller XPC X.25 Protocol Controller (Digital Data Communications) XPCM Transmit PCM XPCS X Portable Character Set XPD cross-Polar Discrimination XPD cross-Polarization Discrimination XPDR transPonDeR XPE Extended Peripheral Equipment XPG X.400 Promotion Group XPG X/Open Portability Guide XPG3 X/Open Portability Guide, Issue 3 XPG4 X/Open Portability Guide, Issue 4 XPI cross-Polarisation Isolation XPL Carrier Private Line XPM Cross-Phase Modulation XPM Extended Peripheral Module XPM X Pixel Map XPM XMS-Based Peripheral Module XPS X.25/X.75 Process System XPT Crosspoint XPT Crosspoint Tandem XPT eXternal Page Table XR indeX Register XRA Ring Again Allowed XRD Ring Again Denied XREF cross-REFerence XRF Cross-Reference XRF extended recovery facility (SNA) XRF Extended Register File XRII/TV X-Ray Image Intensifier / TeleVision (System, Medical) XRL eXtra Requirement List XRL IXIT Requirements List XRL X-Ray Lithography XRLCM Remote Extended Memory Line Concentrating Module XRS Unknown Message Response XRT WOSA Extensions for Real-Time Data XRU Extension Recording Unit XS Carrier Switched XSG X.25/X.75 Service Group XSH Xshell XSIS Xerox Special Information Systems XSIS Xerox System Integration Standard XSL Extensible Stylesheet Language XSM Extended System Monitor XSMD Extended Storage Module Drive XST MDII: Expected Stop Timeout XSYCO XMS System Coder XT Crosstalk XT Cross-Threaded XT Extended XT eXtended Technology Xt X Window System Toolkit (Intrinsics) Library XTAL (quarz) crysTAL XTAL Crystal XTC Extended Test Controller XTC External Transmit Clock XTC heXadecimal Tone Code XTI X/open Transport Interface (UNIX) XTI X/Open Transport Layer Interface XTL XPM Telecom Layer XTP Exchange Termination Point XTP Xpress Transfer Protocol XTP Xpress Transport Protocol XTPSG Exchange Termination Point Subgroup XTR cross Talk Ratio XTT Cross-Thread Trunk XTYP Exchange Type XUDT Extended Unitdata XUDTS Extended Unitdata Service XUG X Users Group XUST XPM Upgrade Software Tool XVR Exchange Voltage Regulator XWD X Window Dump XWD X-Windows Bitmap XXTRG XX Trigger for AIN
Y Admittance Y luminance Y luminance component y short used as y-coordinate Y Yellow Y Yes Y/C Luminescence and Chrominance Y/N Yes/No Y2K Year 2000 YA Yet Another YABA Yet Another Bloody Acronym YACC Yet Another Compiler Compiler (UNIX) YAG Yttrium-Aluminium-Garnet (Laser) YAPL Yet Another Programming Language yar Yet Another Readme YBCO Yttrium and Barium in Copper Oxide (Superconductive Material) YCMB Yellow, Cyan, Magenta and Black (4-colour printing) YD ISO country code for Democratic Yemen (obsolete) YE ISO country code for Yemen YE Year End YFNSA Your Friendly Neighborhood System Administrator YGWYPF You Get What You Pay For YIG Yttrium-Iron-Garnet (MicroWave Component) YIQ Luminance, Inphase color, Quadrature color YL Loop-Back Abstract Test Method YMMV Your Mileage May Vary YP Yellow Pages YPS Yellow Pages Service YRGB luminance/Red/Green/Blue (Video) YT ISO country code for Mayotte YT Postal code for Yukon Territory YT Transverse Abstract Test Method YTD Yacht Telephone Debit YTD Year To Date YU ISO country code for Montenegro and Serbia (formerly Yugoslavia) YUV Y, Cb, Cr YUV Y-signal, U-signal, and V-signal
Z impedance Z Zero Z Zero voltage reference Z Zulu time zone (GMT) Z.E.N. Zero Effort Networking Z/C Zone Controller ZA ISO country code for Republic of South Africa ZAK Zero Administration Kit ZAP "ZAP" field used with INC ZAP to disable handsets ZAPS Zone Activated Paging System ZAS Central Announcement Office ZAW Zero Administration for Windows ZB Impedance Balance ZBI Zero Byte Indicator ZBI Zero Byte Substitution Indication ZBR Zone Bit Recording ZBS Zero Byte Substitution ZBTSI Zero Byte Time Slot Interchange ZBTSI Zero Byte Time Slot Interface/Interchange Zc Characteristic Impedance ZC Zone Center ZC Zone Code ZC Zone Controller ZCAV Zone Constant Angular Velocity Z-CAV Zoned Constant Angular Velocity ZCO Zero-Cross-Over ZCP Zero-Cross Point ZCQ Zero-Cross Qualifier ZCS Zero Code Suppression ZD Ziff-Davis ZD Zoned Decimal ZDB Zortech Debugger ZDBOp Ziff-Davis Benchmark Operation ZDI Ziff-Davis Information Service ZDS Zenith Data Systems ZDW Zero-Dispersion Wavelength ZF Zero Flag ZF zero frequency ZFS Zone Field Selection ZGS Zeichengabesystem (Common Channel Signaling System) ZI Zentrale Instandhaltung (Central Maintenance) ZIF Zero Insertion Force ZIF Zero Insertion Force connector (IC Socket) ZIL Zig-zag In-Line ZIP Zig-Zag In-Line Package ZIP Zone Improvement Plan ZIP Zone Information Protocol ZL Complex Load Impedance ZM ISO country code for Republic of Zambia ZMD Zero Minus Denied ZMD Zero Minus Dialing ZMZPA Zero Minus Zero Plus Allowed ZPV Zoomed Port Video ZR ISO country code for Republic of Zaire ZRM Zonenruckmeldung (Chargeband Message) ZS Zero Substitution ZS Zone Selection ZSL Zero Slot Lan ZT Zone Time ZV Zoomed Video ZVEI Zentralverband Elektrotechnik- und Elektronikindustrie e. V. (German electronics industry association) ZW ISO country code for Zimbabwe ZWR Zwischenregenerator (Regenerator) ZZk Zentraler Zeichengabekanal (Central Signalling Link) ZZK Zentraler Zeichenkanal (Common Signalling Channel)
Disclaimer: This listing is compiled from various sources. Although most of the entries are correct, some may be erroneous.
No representation is made or warranty given as to its content. User assumes all risk of use.
Last update: Feb 2008
