\\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias // 1 A B C D E F G H I J K L M N O P Q R S T U V W X Y All words B-CDMA Broadband Code Division Multiple Access B-CPE Broadband Customer Premises Equipment B-ICI Broadband ISDN Inter-Carrier Interface B-ICI Broadband ISDN InterCarrier Interface B-ISDN Broadband Integrated Services Digital Network B-ISDN Broadband ISDN B3ZS Binary 3 Zero Substitution B6ZS Binary 6 Zero Substitution B8ZS Binary 8 bit Zero Substitution B8ZS Binary 8 Zero Substitution B Bearer channel B Bridge BA Balanced Asynchronous (HDLC) BACP Bandwidth allocation control protocol BAF Bellcore AMA Format BAIC Barring of All Incoming calls BAID Billing Account ID BAIF Billing Account Identification Facility BAN Billing Account Number BANCS Bell Administrative Network Communications System BAOC Barring of All Outgoing calls BAS Basic Activity Subset BAsize Buffer Allocation Size (DQDB, SMDS) BBN Bolt Baranek and Newman BBS Bulletin Board System BBWC Battery-Backed Write Cache Bc Committed Burst Size BCC Base station Color Code (GSM) BCC Base Station Colour Code (GSM - UMTS) BCC Block Calls Cleared (telephony) BCC Block Check Character (BISYNC) BCC Bus Control Card BCCH Broadcast Common Control Channel (GSM) BCCH Broadcast Control Channel (GSM) BCD Binary Coded Decimal BCD Blocked Calls Delayed BCD Blocked Calls Delayed (telephony) BCDIC Binary Coded Decimal Interchange Code BCH Blocked Calls Held BCH Broadcast Channels BCI Backward Call Indicators BCI Bell Canada International BCLB Broadband Connectionless Bearer Service (ATM) BCLID Bulk Calling Line Identification BCM Basic Call Model BCM Bit Compression Multiplexer BCOB Broadband Connection-Oriented Bearer Service (ATM) BCP Best Current Practices (RFC) BCR Blocked Calls Released BCS Basic Combined Subset BCS Business Communication Services BCSM Basic Call State Machine BD Bill Date BDCBB Battery Distribution Circuit Breaker Board BDCS Broadband Digital Cross-Connect System BDFB Battery Distribution Fuse Board BDSA Basic Digital Special Access BDT Telecommunications Development Bureau BE Back-end BE Block Error BECN Backward Explicit Congestion Notification BECN Backward Explicit Congestion Notification (LAPF) BEMS Business Exchange Measured Service BER Basic Encoding Rule(s) BER Bit Error Rate/Ratio BERT Bit Error Rate Test BES Basic Exchange Service BEtag Beginning-End Tag (DQDB, SMDS) BFCV Binary Facility Coding Value BFI Bad Frame Indicator (GSM) BG Billing Group BG Business Group BGID Business Group Identification BGP4 BGP Version 4 BGP Border Gateway Protocol (IETF) BGS Business and Government Services (USW Enterprise) BGW Billing Gateway BHCA Busy Hour Call Attempt(s) BHCC Busy Hour Call Completions BIA Burned-in MAC address BIB Backward Indicator Bit BIB Backward Indicator Bit (SS7) BIBR Backward Indicator Bit Received BIBT Backward Indicator Bit to be Transmitted BIBX Backward Indicator Bit eXpected BICC Bearer Independent Call Control BICI Broadband Inter-Carrier Interface BICRoam Barring of Incoming Calls while Roaming BIGA Bus Interface Gate Array (Cisco) BIND Berkeley Internet Name Domain (DNS) BinHex Binary Hexadecimal BIOS Basic Input/Output System BIP Bit Interleaved Parity (SONET, SDH) BIPI Billing Plug-In BISDN Broadband Integrated Services Digital Network (ISDN) BISUP Broadband ISUP (ISDN User Part) BISYNC BInary SYNChronous (also BSC) BISYNC Binary Synchronous Communications protocol (IBM) BIT BInary Digit BITNET Because It's Time Network BITS Building Integrated Timing Supply BIU Basic Information Unit BL Basic Link BLER BLock Error Rate BLI Busy Lamp Indicator BLSR Bidirectional Line Switched Ring (SONET) BLU Basic Link Unit (SNA) BM Broadband Modem BN Billing Number BNC Bayonet Neil Councilman BNF Backus Naur Form BNI Broadband Network Interface BNM Broadband Network Module BNN Boundary Network Node BNR Bell Northern Research (subsidary of BCE) BNS Bill Number Screening BNS Broadband Network Service BOB Breakout Box BOBI Break-out/Break-in (Cisco) BOC Bell Operating Company BOCP Business Optional Calling Plan BOIC Barring of Outgoing Internaltional Calls BOICexHC Barring of Outgoing International Calls except those to the Home Country BOM Beginning of Message (DQDB, SMDS) BOOTP Bootstrap Protocol BORSCHT Battery feed, Overvoltage protection, Ringing, Signaling, Coding, Hybrid and Testing BP Binding Post BPAD BISYNC Packet Assembler/Disassembler (PSPDN) BPDU Bridge Protocol Data Unit (LAN) BPI Baseline Privacy Interface BPOP Building Point of Presence BPR Business Process Re-engineering BPRZ Bipolar Return to Zero BPS Bits Per Second BPV Bipolar Violation BPX Broadband Packet Exchange (StrataCom) BRA Basic Rate Access BRADS Bellcore Rating Administrative Data System BRCS Business and Residence Centrex Services BRE Bridge Relay Element BRF Bridge Relay Function BRI Basic Rate Interface BRI Basic Rate Interface (ISDN) BRIDS Bellcore Rating Input Database System BRITE Basic Rate Interface Transmission Equipment/Extension BRLU Broadband Remote Line Unit BRS Business Recovery Service BRSU Broadband Remote Switching Unit BS Base Station BS Bearer Service BSA Basic Service Arrangement BSBH Busy Season Busy Hour (telephony) BSC Base Station Controller (GSM) BSC Binary Synchronous Communications protocol (IBM) BSC Bisynchronous Communications BSD Berkeley Software Distribution BSE Basic Service Element BSIC Base Station Identity Code (GSM) BSN Backward Sequence Number (SS7) BSNR Backward Sequence Number Received BSNT Backward Sequence Number to be Transmitted BSP Bell System Practice BSRF Basic System Reference Frequency BSS Base Station Subsystem (GSM) BSS Basic Service Set BSS Basic Synchronized Subset BSS Broadband Switching System BSS Broadcasting Satellite Service BSSGP BSS GPRS Protocol BSSMAP Base Station Subsystem Mobile Application Part (GSM) BSTUN Block Serial Tunnel BT Burst Tolerance (ATM) BTA Basic Trading Area BTA Basic Trading Areas (Rand McNally) BTAM Basic Telecommunications Access Method (SNA) BTN Billing Telephone Number BTS Base Transceiver Station (GSM - UMTS) BTU Basic Transmission Unit Bureau of Standards) BUS Broadcast and Unknown Server BVA Billing Validation Application BVCI BSSGP Virtual Vonnection Identifier BVI Bridge Group Virtual Interface BX.25 AT&T implementation of X.25 BXM Broadband Switch Module SMBZ - SaMBoZaur - test for propagation of define: