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Telephony Specific Acronyms

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Telephony Specific Acronyms Numerics A 10 GbE 10 Gigabit Ethernet A All lines 10 GFC 10 Gigabit Fibre Channel (Same A/D Analog-to-Digital as FC1200) AA Agile Access 1000BaseT 1000 Megabits per Second, Base- AAC Advanced Audio Coding; Alter- band, Twisted Pair nate Area Code 100BaseT 100 Megabits per second, Base- AADC Automated Area Distribution band, Twisted pair Center 100BASE-T2 100 Megabits per Second, Base- AADS Ameritech Advanced Data Ser- band, Two-pair Category 3 UTP vices cables AAL ATM Adaptation Layer 100BASE-T4 100 Megabits per Second, Base- band, Four-pair Category 3 UTP AAL0 ATM Adaptation Layer Type 0 cables AAL1 ATM Adaptation Layer Type 1 100G 100 Gigabits AAL2 ATM Adaptation Layer 2 Trans- 100VG 100 Voice Grade (IEEE 802.12 port AnyLAN Standard) AAL3/4 ATM Adaptation Layer Type 3 and 10BASE-T 10 Megabits per second, Base- 4 band, Twisted pair AAL5 ATM Adaptation Layer 5 16-QAM 16 (points) Quadrature Amplitude AAP Alternate Access Provider Modulation AAPR Annual Average Performance Ratio 1FB Single line, Flat Business rate AAR Automatic Alternate Routing 2F Two-Fiber AAS Adaptive Antenna System 2W Two Wire AASR Abbreviated Access Service 3D 3-Dimensional Request 3G Third-Generation wireless archi- AAV Alternate Access Vendor tecture ABR Available Bit Rate; Available 3GIP Third-Generation Internet Protocol Bandwidth Rate 3GPP Third-Generation Partnership ABT Advanced BiCMOS Technology Project AC Alternating Current; Administra- 3GSM Third-Generation Global System tive Complex; Atomic Clock; for Mobile (communications) Always Connected; Area Code 3RNGR Three Ringer AC-3 Audio Coding Revision 3 3WC Three-Way Calling ACA Automatic Circuit Assurance 3WO Third Wire Open ACAC Actual Call Admission Control 40G 40 Gigabits ACAP Application Configuration Access 4C Consortium of Intel, IBM, Matsu- Protocol shita, and Toshiba ACC Automatic Carrier Control 4F Four-Fiber ACD Automatic Call Distribution 4G Fourth-Generation wireless architec- ture (ie: LTE- long term evolution) ACE Adaptive Communication Envi- ronment 4W Four-Wire ACEG Alternating Current Equipment 4WA Four-Wire Analog Ground 4WAI Four-Wire Analog Interface ACK Acknowledge 4WE&M Four-Wire Ear and Mouth ACL Active Control List; Access Con- 5C Consortium of Intel, Sony, Matsu- trol List shita, Toshiba, and Hitachi ACO Alarm Cutoff 802.11 HR High data Rate IEEE 802.11 Wire- ACQ Acquire less LAN protocol 1 ACR Allowed Cell Rate AIS-S Alarm Indication Signal-Section ACS Automatic Channel Shutdown; AIS-V VT Alarm Indication Signal Alarm Correlation and Suppres- ALI Automatic Location Identification sion ALMLED2U Alarm LED 2 RU (Online Edge ACSE Association Control Service Ele- Platform) ment ALS Automatic Laser Shutdown; Ap- ACSS Automatic Channel Shutdown plication Layer Service Suppression; Automatic Channel Shutdown State AM Amplitude Modulation; Applica- tion Manager ACT Active AMF APS Mode Mismatch Failure ADC Analog-to-Digital Converter; Add/Drop Coupler AMI Access Method Interface; Alter- nate Mark Inversion ADI Asset Distribution Interface AMP Amplifier; Amperes ADM Add/Drop Multiplexer AMS Asset Management System; ADP Actual Departure Potential; Auto- Agent Management System matic Data Processing ANI Automatic Number Identification ADSL Asymmetric Digital Subscriber Line ANSI American National Standards Institute ADT Actual Departure Time; Auto- matic Data Transmission AO Autonomous Output AE Automation Engine; Automation AOD Advertising on Demand Environment APC Angled Physical Contact AES Advanced Encryption Standard; APD Avalanche Photo Diode Application Environment Specific API Application Program Interface AESA ATM End System Address; ATM APS Automatic Protection Switching End Station Address APSBF Automatic Protection Switching AFDX Avionics Full Duplex Switched Byte Failure Ethernet APSCM Automatic Protection Switching AFI Authority and Format Identifier Channel Mismatch AFM APS Mode Mismatch Failure APSMM Automatic Protection Switching AGC Automatic Gain Control; Access Mode Mismatch Group Controller ARC Alarm Reporting Control AGGR Aggregate ARIN American Registry for Internet AID Access Identifier; Application Numbers Identifier ARP Address Resolution Protocol AIM Auto Image Management; Active ARPU Average Revenue Per Unit (or User) Inventory Map AS Autonomous System; Application AIN Advanced Intelligent Network Server AINI ATM Inter-Network Interface ASAP Alarm Severity Assignment Profile AINS Automatic In Service State ASCII American Standard Code for AIR Additive Increase Rate Information Interchange AIS Alarm Indication Signal ASD Access Security Device AISDP Alarm Indication Signal Decay ASE Amplified Spontaneous Emission; Period Application Service Element AISIP Alarm Indication Signal Integra- ASI Asynchronous Serial Interface; tion Period Asynchronous SCSI Interface AIS-L Alarm Indication Signal-Line ASIC Application-Specific Integrated AIS-P Alarm Indication Signal-Path Circuit 2 ASN.1 Abstract Syntax Notation One AUI Autonomous Unit Interface ASP Applications Service Provider; AU-n Administrative Unit “n” Average Selling Price AUP Acceptable Use Policy ASR Automatic Send-Receive AUX Auxiliary ASYNC Asynchronous AVC Attribute Value Change AT Advanced Technology; Access AVD Alternate Voice/Data Terminal; Attention Command AVR Automated Voice Response AT&T American Telephone and Tele- graph Company AWA Advanced Wireless Access ATA Advanced Technology Attach- AWG American Wire Gauge; Arbitrary ment Wave Guide ATAF ATM Test Access Function AWGN Additive White Gaussian Noise ATAG Autonomous Tag AWS Advanced Wireless Services ATAGSEQ Autonomous Tag Sequence AZDL Adjusted Zonal Daily Load ATB Above-ground Telecommunica- tions Backbone; All Trunks Busy B ATC Alarm Traffic Controller B Bits ATDMA Asynchronous Time Division B3G Beyond Third-Generation Multiple Access B3ZS Bipolar 3 Zero Substitution A-TDMA Advanced Time Division Multiple B6ZS Bipolar 6 Zero Substitution Access B8ZS Bipolar 8 Zero Substitution ATIS Automatic Transmitter Identifica- BABT British Approvals Board for Tele- tion System communications ATM Asynchronous Transfer Mode BAF Bellcore AMA (Automatic Mes- ATM SAM ATM Service Access Multiplexer sage Accounting) Format ATMVCL ATM Virtual Channel Link BAN Building Area Network ATMVPL ATM Virtual Path Link BASH BAndwidth SHaring AToM Any Transport over MPLS (Multi- BASH-R BAndwidth SHaring with Re- Protocol Label Switching) source constraints ATR Advanced Telecommunications BC Burst Copy Research BC Committed Burst size ATRAC Adaptive TRansform Acoustic BCD Binary-Coded Decimal Coding BCIX Berlin Commercial Internet eX- ATS Automatic Transfer Switch change ATTN Attenuator BCM Bit Compression Multiplexer ATTRA Appropriate Technology Transfer BCP Before Cell Phones for Rural Areas B-CPE Broadband Customer Premises ATU-C ADSL (Asymmetric Digital Sub- Equipment scriber Line) Transceiver Unit- Central office end BDS Bundled Digital Services ATU-R ADSL (Asymmetric Digital Sub- BDSL Broadband Digital Subscriber scriber Line) Transceiver Unit- Line Remote terminal end BEAR Billed Entity Applicant Reimburse- ATZ Attention: Reset modem ment AU/AU-x Administrative Unit BECN Backward Explicit Congestion Notification AuBW AutoBot Walkthrough BER Bit Error Rate AUG Administrative Unit Group BE-RS Block Errors-Regenerative Section 3 BER-SD-P Path Signal Degrade BER BONDING Bandwidth ON Demand Interop- BER-SF-P Path Signal Failure BER erability Group BERT Bit Error Rate Test BOOTP Bootstrap Protocol BFP Back Facet Power; Basic Format BORSCHT Battery feed, Overvoltage protec- Packet tion, Ringing, Signaling, Coding, Hybrid, and Testing BFS Broadcast File System BOT Baseline Of Text BFW Broadband Fixed Wireless BP Backplane BGCF Breakout Gateway Control Func- tions BPI Baseline Privacy Interface BGP Border Gateway Protocol BPI+ Baseline Privacy Interface Plus BGP4 Border Gateway Protocol, version B-PON Broadband Passive Optical Net- 4 work BGSA Banded Geographical Service BPoP Building Point of Presence Area BPP Backplane Protocol BHA Busy Hour Attempts BPS Baud Per Second BHCA Busy Hour Call Attempts bps bits per second BHCC Busy Hour Call Completions BPSK Binary Phase-Shift Keying BHP Burst Header Packet BPSR Bidirectional Path Switched Ring BICI Broadband Inter-Carrier Interfaces; BPT Band Pass-Through B-ISDN Inter-Carrier Interface BPV BiPolar Violations B-ICI Broadband Inter-Carrier Interface BR Basic Rate BICSI Building Industry Consulting BRA Basic Rate Access Services International BRAN Broadband Radio Access Network BIOS Basic Input/Output System B-RAS Broadband Remote Access Server BIP Bit Interleaved Parity; Breaker Interface Panel BREW Binary Runtime Environment for Wireless BISDN Broadband Integrated Services Digital Network BRI Basic Rate Interface B-ISDN Broadband ISDN BRITE Basic Rate Interface Transmission Extension BIT Built-In Test; Binary Digit BRM Backward RM BITS Building Integrated Timing System BS Basic Service; Broadcast Satellite; bits/sym Bits per Symbol Burst Selector BIU Bus Interface Unit BSA Basic Service Area BLER BLock Error Rate BSC Bi-Synchronous Communications; BLERT BLock Error Rate Test Board SC Connector BLP Burst Loss Probability BSM Broadband Satellite Multimedia BLSR Bidirectional Line Switched Ring BSP Board Support Package BM Maximum Burst size BSRF Basic System Reference Frequency BML Business Management Layer BSS Business Support System; Broad- BNC Bayonet Neill-Concelman British band Switching System; Basic National Connector Service Set BNT Broadband Networking Technology BT Backtrace, Beginning Tag, British Telecom; Burst
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