| ==Phrack Magazine== | |
| Volume Four, Issue Forty-Three, File 21 of 27 | |
| +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
| + + | |
| + + | |
| + The Telephony Acronyms and Abbreviations List from Hell + | |
| + + | |
| + + | |
| + by + | |
| + Crisp GRASP + | |
| + + | |
| +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
| Well, here it is, the list from hell. Sure beats the old lists of 100 | |
| or so three letter acronyms. The whole reason for this list is so that | |
| you can crack almost ANY bell document. This list came from a few | |
| lists (one in Phrack a while back) and a few other Telephony lists | |
| here and there. Though it must be noted (and i want to take credit for | |
| it) that well over half of the acronyms and abbreviations were typed | |
| in by me, inputed into my database (of course I am not about to give | |
| out my database). | |
| It is always a good idea to start a database, one will learn a lot | |
| faster. It is doing things scientific like, and for someone as | |
| compulsive as I, solving the puzzle of the telephone company was easy | |
| as pie. I must say that all the hackers I have meet, and talked to are | |
| all compulsive as hell <G>. I think it is just what it comes down to, | |
| who is willing to learn. Any ways here is two fields in my database, | |
| one small part, but worth it. Though i do not think it will be able | |
| to help most of you out, just gets into too much, and understanding | |
| which acronym goes where, and understanding what goes where is hard. | |
| Well good luck! | |
| Greets to Bell Northern Labs, never see too much from you press wise! | |
| and to SRI, should have come to Cal. hah (Don knows what I am talking | |
| about, his funding is short) | |
| -------------------------------------------------------------------------- | |
| 15M Fifteen minutes | |
| 15S Fifteen seconds | |
| 1CF Singal party coing first pay phone | |
| 1FAC Interface packs | |
| 1FB One party flat business rate | |
| 1OF One party official (telco) business line | |
| 2SPDT Partial dial timeout in the second stage of a traditional | |
| 2-stage international | |
| 2SPST Permanent signal timeout in the second stage of a traditional | |
| 2-stage international | |
| 2SVCA Vacant code in the second stage of a traditional 2-stage | |
| international outbound | |
| 2W Two wire (pair) (circuit) | |
| 2WAY Two-way trunk groups | |
| 300 Log command menu (SARTS command) | |
| 376 Log clear (SARTS command) | |
| 384 Write log (SARTS command) | |
| 385 Read log (SARTS command) | |
| 399 Log print (SARTS command) | |
| 3KHZ Three kilohertz | |
| 3RNGR Three ringer | |
| 3WO Third wire open | |
| 4W Four wire (pair) (circuit) | |
| 600 Test menu (SARTS command) | |
| 600B 600-ohm briged connection | |
| 611 Detail tests (SARTS command) | |
| 621 Macro command menu (SARTS command) | |
| 631 Automatic test command (SARTS command) | |
| 735T 735-ohm compromise termination | |
| ?A Action field contains an error | |
| ?D Data field contains an error | |
| ?E Error exist in the message but can ot be resolved to the | |
| proper field | |
| ?I Identification field contains an error | |
| ?T Time-out has occured on channel | |
| ?W Warning message | |
| A A side (lead) (pair) | |
| A Area | |
| A Telephone number or trunk group and member number from trouble | |
| A/B Two wire phone connection (T&R) | |
| AA Automatic answer | |
| AA Packet analog access line INTER/TRA blocal 1-26 | |
| AABS Automatic alternate billing service | |
| AAE Auxiliary access equipment | |
| AAR Automatic alternate routing | |
| AAX Automated attendant exchange | |
| AB Packet switch trunk INTER/TRA blocal 1-26 | |
| ABATS Automatic bit access test system | |
| ABATS Automatic bit access test system (DDS service) | |
| ABC Automatic bill calling (TSPS) | |
| ABF Abandon failure | |
| ABF Abandon failure (MDII) | |
| ABHC Average busy hour calls | |
| ABL Auxiliary Buffer oder word Left half | |
| ABM Asynchronous balanced mode ( -> SABME) | |
| ABME ABM extended | |
| ABR Auxiliary Buffer order word Right half | |
| ABS Alternate billing service | |
| ABS Alternative billing service | |
| ABSBH Average busy season busy hour | |
| ABT Abort | |
| ABV Above | |
| AC Administrative computer | |
| AC Alternating current | |
| AC Assembly code | |
| ACA Asynchronous communication adapter | |
| ACB Annoyance call bureau | |
| ACB Automatic call-back | |
| ACC Audio communications controller | |
| ACCS Automated calling card service | |
| ACD Automatic call distribution | |
| ACD Automatic call distributor | |
| ACDA Automatic call disposition analyzer | |
| ACDN Access Directory Number | |
| ACDN Access directory number | |
| ACE Assignment change establish | |
| ACE Automatic calling equipment | |
| ACES Aris cabs entry system | |
| ACF Advanced communications functions | |
| ACFA Advanced CMOS frame aligner peb2030 | |
| ACG Automatic call gap | |
| ACH Attempt per circuit per hour | |
| ACI Answer controller interface (IOM2 monitor command) | |
| ACIA Asynchronous communications interface adapter | |
| ACK Acknowledge | |
| ACK No acknowledgement wink | |
| ACK No acknowledgement wink (MDII) | |
| ACKDB Acknowledgement database | |
| ACM Address complete msg. (SS7: in ISUP) | |
| ACOF Attendant control of facilities | |
| ACP Action point | |
| ACSE Association control service element | |
| ACSNET Acedemic computing services network | |
| ACSR Automatic customer station rearrangement | |
| ACSU Advanced T-1 channel service unit | |
| ACT AC Testing definition | |
| ACT AC testing definition | |
| ACT Activate | |
| ACT Active | |
| ACT Auto or automatic circuit transactions | |
| ACTS Automated coin toll service | |
| ACTV Acticated | |
| ACTVD Activated | |
| ACU Alarm control unit | |
| ACU Automatic calling unit | |
| AD Attendant INTER/TRA blocal 1-26 | |
| ADAP Audix data acquisition package | |
| ADAS Advanced directory assistance system | |
| ADC American digital cellular | |
| ADC Analog to digital converter | |
| ADCCP Advanced data communication controll procedure | |
| ADCCP Advanced data communications control procedure | |
| ADCI Automatic display call indicator | |
| ADD EXP Address expander | |
| ADDL Additional | |
| ADDR Address translations | |
| ADJ Ajust | |
| ADM Add-drop multiplex | |
| ADMA Advanced DMA controller SAB82258 | |
| ADN Abbreviated dialing number | |
| ADP Automatic diagnostic process. | |
| ADPCM Adaptive PCM | |
| ADS Administration of designed services | |
| ADS Administration of designed services review | |
| ADS Advanced digital system | |
| ADS Audio distribution system | |
| ADS Auxilary data system | |
| ADSL Asymmetrical digital subscriber line | |
| ADTS Automated digital terminal system | |
| ADTS Automatic data test system | |
| ADTS Automatic digital terminal system | |
| ADU Automatic dialing unit | |
| AERM Alignment error rate monitor | |
| AF Commercial audio fulltime INTER/TRA blocal 1-26 | |
| AFACTS Automatic facilities test system | |
| AFADS Automatic force adjustment data system | |
| AFE Analog front end | |
| AFI Authority and format identifier (ISO 7498) | |
| AFSC Advanced features service center | |
| AFSK Automatic frequency shift keying | |
| AG/EEE Above ground electronic equipment enclosures | |
| AGC Automatic gain control | |
| AGM Normal aging months | |
| AGND Analog ground | |
| AGT Accelerated aging type | |
| AI Activate indication (C/I channel code) | |
| AI Artificial intelligence | |
| AI Assigner's initials | |
| AI Automatic identified outward dialing INTER/TRA blocal 1-26 | |
| AIC Automatic intercept center | |
| AICC Automatic intercept communications controller | |
| AIN Advanced intelligent network | |
| AIOD Automatic id of outward dialing | |
| AIOD Automatic identifaction of outward dialing | |
| AIS Alarm indication signal | |
| AIS Alarm indication signals | |
| AIS Automatic intercept system | |
| AIT Analit initialization of tables | |
| AIU AI upstream | |
| AL Alternate services INTER/TRA blocal 1-26 | |
| ALATS Automatic loop access system system (DDS service) | |
| ALBO Automatic line buildout | |
| ALE Address latch enable | |
| ALE Automatic line evaluation | |
| ALFE Analog line front end | |
| ALGOL Algorhythmic computer language | |
| ALI Automatic location indentification | |
| ALIT Automatic line insulation testing | |
| ALL All events | |
| ALL All module controller maintenance interrupts | |
| ALL Turns on all IDs | |
| ALPT Alarm scan points | |
| ALRM Alarms | |
| ALRU Automatic line record update | |
| ALS Automated list service | |
| AM Administrative module | |
| AM Amplitude modulation | |
| AM Asynchronous multiplexer | |
| AM Packet | |
| AMA Automatic Message Accounting | |
| AMA Automatic message accounting | |
| AMACS AMA collection system | |
| AMAIRR Automatic message accounting irregularity | |
| AMALOST Lost automatic message accounting | |
| AMARC AMA recent change | |
| AMARC AMA recording center | |
| AMASE AMA standard entry | |
| AMAT Automatic message accounting transmitter | |
| AMATPS Automatic message accounting teleprocessing system | |
| AMATPS Automatic message accounting transmitter teleprocessing system | |
| AMC Add-on module connector (-> sipb) | |
| AMERITECH American information technologies | |
| AMI Alternate mark inversion code | |
| AML Automatic maintenance limit. | |
| AMP Advance measurement processor | |
| AMP Amplifier | |
| AMPS Advanced mobile phone service | |
| AMR Automatic meter reading | |
| AMWI Active message waiting indicator | |
| AN Announcement service INTER/TRA blocal 1-26 | |
| AN Associated number | |
| ANA Automatic number announcement | |
| ANC All number calling | |
| ANCT Analysis control table | |
| ANI Automatic number identification | |
| ANIF Automatic number identification failure | |
| ANM Answer msg. (SS7: in ISUP) | |
| ANS Answer | |
| ANS Answer On Bus | |
| ANS Answer msg. | |
| ANSER AT&T Network Servicing System (i.e. via EADAS link ) | |
| ANSI American national standards institute | |
| AO Allocation order | |
| AO International/overseas audio (full time) INTER/TRA blocal 1-26 | |
| AOC Advice of charge (i.256 B) | |
| AOSS Auxilliary operator service system | |
| AP Access point | |
| AP Application (OSI layer 7) | |
| AP Application processor | |
| AP Attached processor | |
| AP Auciliary processor | |
| AP Automatic position | |
| AP Commercial audio (part time) INTER/TRA blocal 1-26 | |
| AP-PG Access point page | |
| APC Alarm processor circuit | |
| APC Amarc protocol converter | |
| APD Access point data | |
| APD Avalanche photo diode | |
| APDB Access point data base | |
| APDL Application processor data link | |
| APH Application protocol handler | |
| API Application interface | |
| APM Application processor modules | |
| APPC Advanced program to program communication (IBM) | |
| APPL1-APPL5 Reserved for application handlers | |
| APS Automatic position system | |
| APS Automatic protection switch | |
| APS Automatic protection switching system | |
| AQ Autoquote problem. | |
| AR Activation request (C/I channel code) | |
| AR Alarm report | |
| AR01 Office alarm - 1AESS alarm message - | |
| AR02 Alarm retired or transferred - 1AESS alarm message - | |
| AR03 Fuse blown - 1AESS alarm message - | |
| AR04 Unknown alarm scan point activated - 1AESS alarm message - | |
| AR05 Commercial power failure - 1AESS alarm message - | |
| AR06 Switchroom alarm via alarm grid - 1AESS alarm message - | |
| AR07 Power plant alarm - 1AESS alarm message - | |
| AR08 Alarm circuit battery loss - 1AESS alarm message - | |
| AR09 AMA bus fuse blown - 1AESS alarm message - | |
| AR10 Alarm configuration has been changed (retired inhibited) - 1AESS | |
| AR11 Power converter trouble - 1AESS alarm message - | |
| AR13 Carrier group alarm - 1AESS alarm message - | |
| AR15 Hourly report on building and power alarms - 1AESS alarm message | |
| ARA Automatic reservation adjustment | |
| ARC Administrative responsibility code | |
| ARC Alternate route cancellation | |
| ARC Alternate route cancellation control | |
| ARC Audio response controller | |
| ARCOFI Audio ringing codec filter | |
| ARCOFI-SP ARCOFI + speakerphone function | |
| ARCOS ARCOFI coefficient support program | |
| ARCOTI SIPB telephone module | |
| ARD AR downstream | |
| ARG Alarm reference guide | |
| ARG Assemble and run a given master file | |
| ARIS Audichron recorded information system | |
| ARL Activation request local loop (C/I channel code) | |
| ARM Activation request maintenance (C/I channel code) | |
| ARM Asynchronous response mode | |
| ARM Automatic R(emote test system) maintance | |
| ARMAR Automatic request for manual assistance resolution | |
| ARN Activation request | |
| ARQ Automatic repeat request | |
| ARR Automatic ring recovery. | |
| ARS Alternate route selection | |
| ARS Automatic route selection | |
| ARSB Automated repair service bureau | |
| ARSB Automatic repair service bureau | |
| ARSSI Automatic rought selection screening index | |
| ART Audible ringing tone | |
| ARU Activation request upstream | |
| ARU Audio response unit | |
| ASAP As soon as possible | |
| ASC Alarm and status circuit | |
| ASC Alarm and status circuit . | |
| ASC Alarm surveillance and control | |
| ASCC2 Advanced serial communication controller | |
| ASCII American standard code for information interchange | |
| ASCII American standard code for information interexchange | |
| ASD Automated SMAS diagnostics | |
| ASDPE Synchronous data link controller (SDLC) A reset | |
| ASE Application service element | |
| ASEC Assignment section | |
| ASGN Assign | |
| ASGNMTS Assignments | |
| ASIC Application specific integrated circuit | |
| ASM Analog subscriber module | |
| ASOC Administrative service oversight center | |
| ASP Advanced service platform | |
| ASP Arcofi signal processor | |
| ASPACGCOMP ASP SCP response message with an ACG component received at the | |
| switch | |
| ASPBADRESP ASP SCP response message received with invalid data | |
| ASPEN Automatic system for performance evaluation of the network | |
| ASPNORTEMSG ASP reject message ret err and a play announc recei at the | |
| switch from the SCP | |
| ASPSNCOMP ASP SCP response message with a send notifi component received | |
| at the switch | |
| ASPTNMSG ASP termination notification message sent from the switch to | |
| the SCP | |
| ASR Access service request | |
| ASSN Assignment | |
| AST Position acknowledge seizure signal time-out (MDII) | |
| ASYNC Asynchronous | |
| AT Access tandem | |
| AT International/overseas audio (part time) INTER/TRA blocal 1-26 | |
| AT&T American telephone and telegraph | |
| AT-1 Auto test-1 | |
| AT-2 Auto test-2 | |
| AT01 Results of trunk test - 1AESS automatic trunk test | |
| ATA Automatic trunk analysis | |
| ATAB Area trunk assignment bureau | |
| ATAI Automatic troubler analysis interface | |
| ATB All Trunks Busy | |
| ATB All trunks busy | |
| ATC Automated testing control | |
| ATC Automatic transmission control | |
| ATD Accept date | |
| ATD Async. TDM | |
| ATH Abbreviated trouble history | |
| ATI Automatic test inhibit | |
| ATI Awake TI | |
| ATICS Automated toll integrity checking system | |
| ATIS Automatic transmitter identification system | |
| ATM Analog trunk module | |
| ATM Asynchronous transfer mode | |
| ATM Automatic teller machine | |
| ATMS Automated trunk measurement system | |
| ATN Assigner's telephone number | |
| ATO Time-out waiting for address complete signal | |
| ATP All tests pass | |
| ATR Alternate trunk routing | |
| ATRS Automated trouble reporting system | |
| ATTC Automatic transmission test and control circuit | |
| ATTCOM AT&T communications | |
| ATTG Attendant group | |
| ATTIS AT&T information system | |
| AU Access unit | |
| AU Autoscript INTER/TRA blocal 1-26 | |
| AU Auxiliary | |
| AUD Assignment list audit | |
| AUD Audits | |
| AUDIT Audit detected problem. | |
| AUDIX Audio information exchange | |
| AUP Access unit port | |
| AUTO Automaitc | |
| AUTODIN Automatic digital network | |
| AUTOSEVCOM Automatic secure voice communications | |
| AUTOVON Automatic voice network | |
| AUXF Auxillary frame | |
| AVD Alternate voice data | |
| AVD Alternate voice-data | |
| AWI Awake indication | |
| AZD All zeros data | |
| B B side (pair) (lead) | |
| B Bridged connection | |
| B Equipment number | |
| B6ZS Bipolar with 6 zero subsitution | |
| B8ZS Bipolar eight zero suppression encoding (DS-1) | |
| B8ZS Bipolar with 8 zeros substitution (T1 pri) | |
| B911 Basic 911 | |
| BA Basic access | |
| BA Protective alarm (CD) INTER/TRA blocal 1-26 | |
| BAF Blocking acknowledgment failure | |
| BAI Bridge lifter assignment inquiry | |
| BAL Balance | |
| BAMAF Bellcore AMA format | |
| BANCS Bell administrative network communications system | |
| BANKS Bell adminastration network systems | |
| BAPCO Bellsouth advertising & publishing company | |
| BAS Basic activity subset | |
| BAT Battery (-48v) | |
| BAx Business address x (x = number of line) | |
| BB Blue box | |
| BBD0/1 Binary 0s or 1s detected in b and d channels | |
| BCC Bellcore client companies | |
| BCC Block check character | |
| BCC Blocked call cleared | |
| BCCP Bearer ccp | |
| BCD Binary coded decimal | |
| BCD Blocked call delayed | |
| BCFE Busy call forwarding extened | |
| BCID Business customer identifier | |
| BCLID Bulk calling line identification | |
| BCMS Basic call management system | |
| BCS Batch change supplement (NTI) (DMS-100) | |
| BDCA Unk | |
| BDCS Broadband digital cross-connect system | |
| BDS Basic data service | |
| BDT Billing data transmitter | |
| BEF Band elimination filter | |
| BEL Bell | |
| BELLCORE Bell communications research | |
| BER Bit error rate | |
| BERT Bit error rate test | |
| BETRS Basic exchange telecommunications radio service | |
| BG Battery and ground signaling | |
| BG/EEE Below ground electronic equipment enclosures | |
| BHC Busy hour call | |
| BHC Busy hour calls | |
| BIB Backward indicator bit (SS7) | |
| BICU Bus interface control unit | |
| BIFIFO Bidirectional fifo | |
| BIR Bit receiver | |
| BIR Bus interface register | |
| BISDN Broadband ISDN | |
| BISP Business information system program | |
| BISYNC Binary synchronous communications | |
| BIT Bit | |
| BIT Bit transmitter | |
| BITNET Because-it's-time network | |
| BITR Bit transceiver | |
| BIX Building internal cross-connects | |
| BK Back | |
| BKUP Backup | |
| BKUP Requests a backup | |
| BL Bell & lights INTER/TRA blocal 1-26 | |
| BL Bridge lifter | |
| BL Bridge lifters - COSMOS command | |
| BL/DS Busy line/don't answer | |
| BLA Blocking acknowledgement (SS7: in ISUP) | |
| BLF Busy line field | |
| BLFCA Blocking a fully coded addressed international outbound call | |
| routed to a non-common channel signaling trunk | |
| BLK Block | |
| BLKD Blocked | |
| BLO Blocking (SS7: in ISUP) | |
| BLS Bridge lifter status | |
| BLS Business listing service | |
| BLV Busy line verification | |
| BMC Billing media coverage | |
| BMD Batch mode display | |
| BMI Batch mode input - TIMEREL and DEMAND | |
| BMOSS Building maintance operations service system | |
| BMR Batch mode release | |
| BMU Basic measurement unit (dip) | |
| BND Band number | |
| BNS Billed number screening | |
| BNSDBOV BVA BNS message received indicating data base overload | |
| BNSDBUN BVA BNS message returned because data base unable to process | |
| BNSGMSG BVA BNS message received garbled | |
| BNSNBLK BVA BNS message returned because of network blockage | |
| BNSNCON BVA BNS message returned because of network congestion | |
| BNSNRTE BVA BNS message returned because of no routing data | |
| BNSTOUT BVA BNS message returned because of timeout | |
| BNSUNEQ BVA BNS message returned because of unequipped destination | |
| BNSURPY BVA BNS message received with an unexpected reply | |
| BNx Business name x (x = number of line) | |
| BOC Bell operating companies | |
| BOC Bell operating company | |
| BOCC Building operations control center | |
| BOP Byte oriented protocol | |
| BOR Basic output report | |
| BORSCHT Battery | |
| BOS Bit oriented signaling | |
| BOS Business office supervisor | |
| BOSS Billing and order support system | |
| BOSS Business office service system (NYNEX) | |
| BOT Beginning of tape | |
| BOT Bottom | |
| BPI Bits per inch | |
| BPOC Bell point of contact | |
| BPS Bits per second | |
| BPSK Binary psk | |
| BPSS Basic packet-switching service | |
| BPUMP Backup pump | |
| BR Bit robbing (CAS-BR) | |
| BRAT Business residence account tracking system | |
| BRCF Business and residential customer service feature | |
| BRCS Business and residential customer services | |
| BRCS Business residence custom service | |
| BRDCST Broadcase | |
| BRDG Bridge | |
| BRDGD Bridged | |
| BREVC Brevity control | |
| BRG Baud rate generator | |
| BRI Basic rate interface | |
| BRITE Basic rate interface transmission extension (5ESS) | |
| BRK Break | |
| BRM Basic remote module | |
| BRM Bell communications research practice | |
| BRST Bridge signature table | |
| BS Backspace | |
| BS Banded signaling | |
| BS Bias battery (-19.1v) | |
| BS Siren control INTER/TRA blocal 1-26 | |
| BSA Basic serving arrangements | |
| BSBH Busy season busy hour | |
| BSC Business service center | |
| BSC/RSC Business/residence service center | |
| BSCM Bisynchronous communications module | |
| BSDPE SDLC B reset | |
| BSE Basic service elements | |
| BSF Bell shock force | |
| BSI British standards institution | |
| BSN Backward sequence number (SS7) | |
| BSOC Bell systems operating company | |
| BSP Bell system practice | |
| BSRF Basic standard reference frequency | |
| BSRFS Bell system reference frequency standard | |
| BST Basic services terminal | |
| BSTJ Bell system technical journal | |
| BT British telecom | |
| BTAM Basic telecommunications access message | |
| BTH Both | |
| BTL Bell telephone laboratories | |
| BTN Billing telephone number | |
| BTSR Bootstrapper board | |
| BTU British thermal unit | |
| BUFF System buffers (NTI) | |
| BVA Billing validation application | |
| BVAPP Billing verification and authorization for payment process | |
| BVC Billing validation center | |
| BVS Basic voice service | |
| BWM Broadcast warning message | |
| BWT Broadcast warning twx | |
| BWTS Bandwidth test set | |
| BYF Display the bypass file | |
| BYP Change the contents of the bypass file | |
| C Counting rate | |
| C Current supervision | |
| C Scan point (SP) | |
| C&A Centrifugal and absorption | |
| C-ACD Commercial-automatic call distributor (OSPS) | |
| C-NCH C-notch | |
| C/I Command/indicate | |
| C/S UNIT Combiner and splitter | |
| C1 Circuit system | |
| CA Cable | |
| CA Cable number | |
| CA Collision avoidance | |
| CA SSN access INTER/TRA blocal 1-26 | |
| CABS Carrier access billing system | |
| CAC Calling-card authorization center | |
| CAC Carrier access code | |
| CAC Circuit administration center | |
| CAC Customer administration center | |
| CACHE Cache errors | |
| CAD Computer-aided dispatch | |
| CAD Critical alarm display | |
| CADN Circuit administration. | |
| CADV Combined alternate data/voice | |
| CAF Circuit reset acknowledgment failure | |
| CAFD Comptrollers' automatic message accounting format description | |
| CAFD Controllers automatic message accounting format description | |
| CAI Address incomplete received | |
| CAI Call assembly index | |
| CAIS Colocated automatic intercept system | |
| CALRS Centralized automatic loop reporting system | |
| CAM Communication access method | |
| CAM Computer aided manufacturing | |
| CAM Content adressable memory | |
| CAM Control administration module | |
| CAMA Central automatic message accounting. | |
| CAMA Centralized auto message accounting | |
| CAMA Centralized automatic message accounting | |
| CAN Cancel | |
| CANC Cancel (i.451) | |
| CANF Clear the cancel from | |
| CANT Clear the cancel to | |
| CAP Capacitance | |
| CARL Computerized administrative route layout | |
| CAROT Centralized automatic reporting on trunks | |
| CAROT Centralized automatic reporting on trunks. | |
| CAS Cannel associated signaling | |
| CAS Circuit associated signaling | |
| CAS Computerized autodial system | |
| CAS Craft access system (SARTS) | |
| CAS Customer account service | |
| CAS7ABM CAS common channel signaling 7 (CCS7) abort message received | |
| CAS7ACG CAS CCS7 ACG invoke component received | |
| CAS7GMG CAS CCS7 received with invalid format reply | |
| CAS7GWE CAS CCS7 error | |
| CAS7NCG CAS CCS7 message returned because of network congestion | |
| CAS7NFL CAS CCS7 message returned because of network failure | |
| CAS7RCR CAS CCS7 reject component received | |
| CAS7SCG CAS CCS7 message returned because of subsystem congestion | |
| CAS7SFL CAS CCS7 message returned because of subsystem failure | |
| CAS7TAN CAS CCS7 message returned | |
| CAS7TOT CAS CCS7 query which timed out before reply received | |
| CASDBOV CAS message received indicating data base overload | |
| CASDBOV Customer account services (CAS) message received indicating data base overload | |
| CASDBOV Customer account services (CAS) message received indicating database overload | |
| CASDBUN CAS message returned | |
| CASGMSG CAS message received garbled | |
| CASNBLK CAS message returned because of network blockage | |
| CASNCON CAS message returned because of network congestion | |
| CASNRTE CAS message returned because of no routing data | |
| CASTOUT CAS message returned because of timeout | |
| CASUNEQ CAS message returned because of unequipped destination | |
| CASURPY CAS message received with an unexpected reply | |
| CAT Centrex access treatment | |
| CAT Craft access terminal | |
| CATLAS Centralized automatic trouble locating and analysis system | |
| CAY Create an assembly | |
| CB OCC audio facilitys INTER/TRA blocal 1-26 | |
| CBA Change back acknowledgement (SS7: in mtp) | |
| CBD Change back declaration (SS7: in mtp) | |
| CBEMA Computer and business equipment manufacturers' assc. | |
| CBERR Correctable bit error | |
| CBS Crossbar switching | |
| CBX Computerized branch exchange | |
| CC Call count | |
| CC Central control | |
| CC Central controller | |
| CC Common channel (CAS-CC) | |
| CC Common control | |
| CC Connection confirm | |
| CC Country code | |
| CC Country code (ISO 7498) | |
| CC Initials of person closing report out to catlas. | |
| CC OCC digital facility-medium speed INTER/TRA blocal 1-26 | |
| CC1 Call control 1 (IOS) | |
| CCA Change customer attributes | |
| CCA Computer content architecture (ISO 8637/2) | |
| CCBS Completion of call to busy subscribers (i.253 c) | |
| CCC Centeral control complex | |
| CCC Central control complex | |
| CCC Clear channel capability | |
| CCC Computer control center | |
| CCD Change due date - COSMOS command | |
| CCDDBOV BVA calling card (CCRD) message received indicating data base | |
| overload | |
| CCDDBUN BVA CCRD message returned because data base unable to process | |
| CCDGMSG BVA CCRD message received garbled | |
| CCDNBLK BVA CCRD message returned because of network blockage | |
| CCDNCON BVA CCRD message returned because of network congestion | |
| CCDNRTE BVA CCRD message returned because of no routing data | |
| CCDR Calling card | |
| CCDTOUT BVA CCRD message returned because of timeout | |
| CCDUNEQ BVA CCRD message returned because of unequipped destination | |
| CCDURPY BVA CCRD message received with an unexpected reply | |
| CCF Custom calling features | |
| CCH Connections per circuit per hour | |
| CCIR Comite' consultatif international des radio communications | |
| CCIR Consultative committee for radiocomunication (international radio | |
| CCIS Common channel interoffice signaling | |
| CCITT Comite' consultatif international telegraphique et telephonique | |
| CCITT Consultative committee for internat. telephone and telegraph | |
| CCM Customer control management | |
| CCNC CCS network control | |
| CCNC Common channel network controller | |
| CCNC Computer/communications network center | |
| CCOA Cabinet control and office alarm | |
| CCP Call control part | |
| CCR Clock configuration register | |
| CCR Continuity check request (SS7: in ISUP) | |
| CCR Customer-controlled reconfiguration | |
| CCRC Corrupt crc (IOM2 monitor command) | |
| CCRD Calling card (5E) | |
| CCRS Centrex customers ... system | |
| CCS Centum Call Seconds | |
| CCS Cluster support system | |
| CCS Common channel signaling | |
| CCS Custom calling services (NTI) | |
| CCS Hundred (C) call seconds | |
| CCS Hundred call seconds | |
| CCSA Common control switching arrangement | |
| CCT Central control terminal | |
| CCT Initialize and update the contractor-transducer file | |
| CCTAC Computer communications trouble analysis center | |
| CCU Colt computer unit | |
| CCU Combined channel units | |
| CCU Communication control unit | |
| CCV Calling card validation | |
| CD Call deflection (i.252 e) | |
| CD Collision detection (->csma/) | |
| CDA Call data accumulator | |
| CDA Change distribution attributes | |
| CDA Coin detection and announcement | |
| CDACS Concentrating DACS | |
| CDAR Customer dialed account recording | |
| CDC Central distrubtion center | |
| CDCF Cumulative discounted cash flow | |
| CDD Change due date | |
| CDF Combined distributing frame | |
| CDF DTF coin | |
| CDFI Communication link digital facilities interface | |
| CDI Circle digit identification | |
| CDI Connected line identification (i.251 C/E) | |
| CDI Control and data interface. | |
| CDI Control data interface | |
| CDIG Circle digit translation (NTI) | |
| CDM Coax data module | |
| CDMA Code division ma | |
| CDO Community dial office | |
| CDPR Customer dial pulse receiver | |
| CDQ1 Custom calling services discount quote | |
| CDR Call detail record | |
| CDR Call dial rerouting | |
| CDR Collision detect input line | |
| CDR Cut thru dip report | |
| CDRR Call detail recording and reporting | |
| CDS Circuit design system | |
| CDS Codes | |
| CDS Craft dispatch system | |
| CE Collision elimination (->CSMA/) | |
| CE Common equipment data (NTI) | |
| CE Conducted emission (EME) | |
| CE SSN station line INTER/TRA blocal 1-26 | |
| CEF Cable entrance facility | |
| CEI Comparable efficient interconnection | |
| CEI Comparably efficient interconnection | |
| CEN European committee of standards | |
| CENELEC European committee of standards (electrotechnics) | |
| CEP Connection endpoint | |
| CEPT European conference of post/telecom administrations | |
| CES CC error summary | |
| CEU CCS estimated usage | |
| CEV Control environmental vault | |
| CEV Controlled environment vault | |
| CF Coin first | |
| CF OCC special facility INTER/TRA blocal 1-26 | |
| CFA Carrir failure alarms | |
| CFA Change facility attributes | |
| CFC Cost function code | |
| CFCA Communications fraud control association | |
| CFD Coinless ANI7 charge-a-call | |
| CFGN Configuration | |
| CFI Configurable interface (SIPB) | |
| CFINIT Custom calling feature table | |
| CFN Call forward number | |
| CFND Call forward number don't answer | |
| CFNR Call forwarding no reply (i.252 c) | |
| CFP Call forwarding busy (i.252 b) | |
| CFP Print the class of service/features for an electromechanical | |
| enti | |
| CFR Code of federal regulations | |
| CFT Craft | |
| CFU Call forwarding unconditional (i.252 d) | |
| CFU Change facility usage | |
| CG Control group number | |
| CG OCC telegraph facility INTER/TRA blocal 1-26 | |
| CG01 Carrier group in alarm - 1AESS carrier group | |
| CG03 Reason for above - 1AESS carrier group | |
| CGA Carrier group alarm | |
| CGA Carrier group assignment | |
| CGAP Call gapping | |
| CGAP Call gapping code controls messages. | |
| CGB Circuit group blocking (SS7: in ISUP) | |
| CGBA CGB acknowledgement | |
| CGM Computer graphics metafile (ISO DIS 8632) | |
| CGN Concentrator group number | |
| CGNC Connector group network controller | |
| CGU Circuit group unblocking (SS7: in ISUP) | |
| CGUA CGU acknowledgement | |
| CH Change | |
| CH OCC digital facility high-speed INTER/TRA blocal 1-26 | |
| CHAN Channel | |
| CHAPS UNK - a known AT&T System - def. unknown | |
| CHAR Character | |
| CHG LASG Change loop assignment | |
| CHK Check | |
| CHR Chronical | |
| CI Concentrator identifier trunk INTER/TRA blocal 1-26 | |
| CI0IN Control interface 0 interrupt | |
| CI1IN Control interface 1 interrupt | |
| CIB Centralized intercept bureau | |
| CIC Carrier identification codes | |
| CIC Circuit identification code | |
| CIC Customer Information Center (AT&T) | |
| CICS Customer information control system | |
| CID Connection identification | |
| CIE Company establish company initiated change | |
| CIF Common intermediate format (for ISDN high end video) | |
| CIH Craft interface handler | |
| CII Call identity index | |
| CII Initial address message (IAM) irregularity (incoming) | |
| CIMAP Circuit installation and maintance assistance program | |
| CIMAP/CC Circuit installation and maintenance assistance/control | |
| center | |
| CIP Control interface port | |
| CIRR C/I receive register | |
| CIS Crimeline information systems | |
| CIS Customized intercept service | |
| CIXR C/I transmit register | |
| CJ OCC control facility INTER/TRA blocal 1-26 | |
| CK Checkbits | |
| CK OCC overseas connecting facility wide-band INTER/TRA blocal 1-26 | |
| CKF Continuity check failure (incoming) | |
| CKID Circuit identification | |
| CKL Circuit location | |
| CKS Clock select bit | |
| CKT Circuit | |
| CKT Circuit. | |
| CKTRY Cuicuitry | |
| CL Centrex CO line INTER/TRA blocal 1-26 | |
| CLASS Centralized local area selective signaling | |
| CLASS Custom local area signaling service | |
| CLC Common language code for an entity | |
| CLCI Common language circuit identification | |
| CLCT Network management control counts | |
| CLDIR Call direction | |
| CLDN Calling line directory number | |
| CLEI Common language equipment identifier | |
| CLF Creating dips upper bound load factor | |
| CLFI Common lang facilities identication | |
| CLI COSMOS processed alit reports | |
| CLI Calling line ident | |
| CLID Calling line identification | |
| CLIP Calling line identification presentation (i.251 c) | |
| CLIR Calling line identification restriction (i.251 d) | |
| CLK Clock | |
| CLL Creating dips lower bound load factor | |
| CLLI Common-language location identification | |
| CLNK Communication link | |
| CLNKs Communication links | |
| CLNORM Communication link normalization | |
| CLR Circuit layout record | |
| CLR Clear | |
| CLRC Circuit layout record card | |
| CLS CLCI in serial number format | |
| CLS Connectless-mode service | |
| CLSD Closed | |
| CLSV Class of service | |
| CLT CLCI telephone number format | |
| CLT Communications line terminal | |
| CLUS Cluster data (NTI) | |
| CM C-message frequency weighting | |
| CM Communication module | |
| CM Connection memory | |
| CM OCC video facility INTER/TRA blocal 1-26 | |
| CMAC Centralized maintenance and administration center | |
| CMAP Centralized maintance and administration position | |
| CMC Call modification completed (SS7: in ISUP) | |
| CMC Cellular mobile carrier | |
| CMC Cellular modile carrier | |
| CMC Construction maintenance center | |
| CMD Command | |
| CMDF Combined main distributing frame | |
| CMDS Centralized message data system | |
| CMF Capacity main station fill | |
| CMP Communication module processor | |
| CMP Communications module processor | |
| CMP Companion board | |
| CMP Corrective maintenancean practices | |
| CMPR Compares | |
| CMR Call modification request (SS7: in ISUP) | |
| CMR Cellular mobile radio | |
| CMRJ CMR reject (SS7: in ISUP) | |
| CMS Call management system | |
| CMS Circuit maintance system | |
| CMS Circuit maintance system 1C | |
| CMS Circuit maintenance system | |
| CMS Communications management subsystem | |
| CMS Conversational monitoring system | |
| CMT Cellular mobile telephone | |
| CMT Combined miscellaneous trunk frame | |
| CMU CCS measured usage | |
| CMU Colt measurement unit | |
| CN C-notch frequancy weighting | |
| CN Change notice | |
| CN Changel noticee | |
| CN Connection | |
| CN SSN network trunk INTER/TRA blocal 1-26 | |
| CN/A Customer name/address | |
| CN02 List of pay phones with coin disposal problems - 1AESS coin | |
| phone | |
| CN03 Possible trouble - 1AESS coin phone | |
| CN04 Phone taken out of restored service because of possible coin | |
| fraud | |
| CNA Communications network application | |
| CNAB Customer name/address bureau | |
| CNCC Customer network control center | |
| CNI Common network interface | |
| CNMS Cylink network management system | |
| CNS Complimentary network service | |
| CNS Concentrating network system | |
| CNT Count | |
| CNTS Counts | |
| CNVT Converted | |
| CO Central office | |
| CO Continuous (SARTS) | |
| CO OCC overseas connecting facility INTER/TRA blocal 1-26 | |
| CO UN Central office unit code | |
| COA Change over acknowledgement (SS7 in MTE) | |
| COAM Centralized operation | |
| COAM Customer owned and maintained | |
| COC Circuit order control | |
| COCOT Customer-owned coin-operated telephone | |
| COD Code | |
| CODCF Central office data connecting facility | |
| CODEC Coder/decoder | |
| COE Central office entity | |
| COE Central office equipment | |
| COEES COE engineering system | |
| COEES Central office equipment engineering system | |
| COER Central office equipment record | |
| COEST Central office equipment signature table | |
| COF Confusion received (outgoing) | |
| COFA Change of frame alignment (DS-1) | |
| COG Centralized operations group | |
| COGRDG Central office grounding | |
| COLP Connected line identification presentation | |
| COLR Connected line identification restriction | |
| COLT Central office limit table | |
| COLT Central office line tester | |
| COM Common controller | |
| COM Communication | |
| COM Complement size | |
| COM Computer output microfilm | |
| COM/EXP PCM-compander/expander | |
| COMM Comunication | |
| COMMS Central office maintenance management system | |
| COMMS-PM Central office maintenance management system-preventive | |
| Maintenance | |
| COMP Computed | |
| COMPNY Company | |
| COMPS Central Office Managenment Program (GTE) | |
| COMSAT Communications satellite | |
| CON Concentrator - COSMOS command | |
| COND Conditions | |
| CONF Conference calling (i.254 a) | |
| CONFIG Configutation | |
| CONN Connect msg. (i.451) | |
| CONN Connector | |
| CONN Nailed-up connections | |
| CONT Control | |
| CONTAC Central office network access | |
| CONUS Continental united states | |
| COO Change over order (SS7: in MTP) | |
| COP Call offering procedure | |
| COPY Data copied from one address to another - 1AESS copy | |
| CORC Commands and responses definition and compressing program (IOS) | |
| CORC Customer riginated recent change | |
| CORCs Customer-originated recent changes | |
| CORNET Corperate network | |
| COS Connection-mode service | |
| COSIB Central office platform operator service interface board | |
| COSMIC Common systems main interconnection frame system (frame) | |
| COSMOS Computer system for mainframe operations | |
| COT Centeral office terminal | |
| COT Central office technician | |
| COT Central office terminal | |
| COT Central office terminal (opposite to RT) | |
| COT Continuity (SS7: in ISUP) | |
| COTM Central office overload call timing (NTI) | |
| CP Cable pair | |
| CP Call processing parameters (NTI) | |
| CP Communication processor (SARTS) | |
| CP Concentrator identifier signaling link INTER/TRA blocal 1-26 | |
| CP Control program | |
| CPA Centralized/bulk power architecture | |
| CPC Cellular phone company | |
| CPC Circuit provision center | |
| CPC Circuit provisioning center | |
| CPC Circuit provisioning center (special services design group) | |
| CPCE Common peripheral controller equipment | |
| CPD Central pulse distributor | |
| CPD Common packet data channels | |
| CPE Customer premise equipment | |
| CPE Customer premises equipment | |
| CPG Call progress (SS7: in ISUP) | |
| CPH Cost per hour | |
| CPI COSMOS-premis interface | |
| CPI Computer private branch exchange interface | |
| CPIE CP or AM intervention interrupt error | |
| CPM COSMOS performance monitor | |
| CPM Citcuit pack module | |
| CPM Cost per minute | |
| CPMP Carrier performance measurement plan | |
| CPS Cycles per second | |
| CPU CCS capacity usage | |
| CPU Call pick up | |
| CPU Call pickup group | |
| CPU Central processing unit | |
| CQM Circuit group query (SS7: in ISUP) | |
| CQR CQM response | |
| CR Carriage return | |
| CR Control Record | |
| CR Control response | |
| CR OCC backup facility INTER/TRA blocal 1-26 | |
| CRAS Cable repair administrative system | |
| CRC Customer record center | |
| CRC Cyclic redundancy check | |
| CRCOK CRC ok! (C/I channel code) | |
| CRE Create | |
| CRED Credit card calling (i.256 a) | |
| CREF Connection refused | |
| CREG Concentrated range extension with gain | |
| CRF Continuity recheck failure (outgoing) | |
| CRFMP Cable repair force management plan | |
| CRG Creg tag | |
| CRIS Customer records information system | |
| CROT Centralized automatic reporting of trunks (NTI) | |
| CRR Reset received (incoming) | |
| CRS Centralized results system | |
| CRSAB Centralized repair service answering bureau | |
| CRST Specific carrier restricted | |
| CRT Cathode ray tube | |
| CRT Cathode-ray tube | |
| CRTM Central office regular call processing timing (NTI) | |
| CS Cable switching | |
| CS Call Store | |
| CS Channel service INTER/TRA blocal 1-26 | |
| CS Conducted susceptibility (EMS) | |
| CS Customer class of service | |
| CSA Carrier serving area | |
| CSACC Customer service administration control center | |
| CSAR Centralized system for analysis and reporting | |
| CSAR Centralized system for analysis reporting | |
| CSC Cell site controller | |
| CSD Circuit specific data | |
| CSDC Circuit switched digital capability | |
| CSDN Circuit-switched data network (t.70) | |
| CSF Critical short form | |
| CSMA/ Carrier sense multiple access | |
| CSMCC Complex services maintenance control center | |
| CSNET Computer science network | |
| CSO Central services organization | |
| CSO Cold start only (in eoc) | |
| CSP Coin sent paid | |
| CSP Coin set paid | |
| CSPDN Circuit-switched public data network | |
| CSR Clock shift register | |
| CSR Customer service records | |
| CSS Computer sub-system | |
| CSS Computer subsystem | |
| CSS Customer service system | |
| CSSC Customer service system center | |
| CST Call state or current state or change state (QUASI SDL) | |
| CST Combined services terminal | |
| CSU Channel service unit | |
| CSUS Centralized automatic message accounting suspension (NTI) | |
| CT Call transfer (i.252 a) | |
| CT Control terminal | |
| CT SSN tie trunk INTER/TRA blocal 1-26 | |
| CT01 Manually requested trace line to line information | |
| follows - 1AESS | |
| CT02 Manually requested trace line to trunk information | |
| follows - 1AESS | |
| CT03 Intraoffice call placed to a number with CLID - 1AESS call trace | |
| CT04 Interoffice call placed to a number with CLID - 1AESS call trace | |
| CT05 Call placed to number on the ci list - 1AESS call trace | |
| CT06 Contents of the CI list - 1AESS call trace | |
| CT07 ACD related trace - 1AESS call trace | |
| CTC Central test center | |
| CTC Centralized test center (DDS) | |
| CTC Centralized testing center | |
| CTC Complete a cable transfer or complete a cable throw | |
| CTD Circuit test data | |
| CTE Cable throw order establishment | |
| CTF Display the contacter-transducer file | |
| CTI Circuit termination identification | |
| CTL Cable throw with line equipment assignment | |
| CTL Central operator control | |
| CTM Cable throw modification | |
| CTM Contac trunk module | |
| CTMC Communications terminal module controller | |
| CTMS Carrier transmission measuring system | |
| CTO Call transfer outside | |
| CTO Continuity timeout (incoming) | |
| CTP Print cable transfer frame work | |
| CTR Cable throw replacement | |
| CTS Cable throw summary | |
| CTS Call through simulator | |
| CTS Clear to send | |
| CTSS Cray time sharing system | |
| CTT Cartridge tape transport | |
| CTT Cut through tag | |
| CTTC Cartridge tape transport controller | |
| CTTN Cable trunk ticket number | |
| CTTU Central trunk testing unit. | |
| CTU Channel test unit | |
| CTW Withdraw a cable transfer or a cable throw | |
| CTX Centrex group number | |
| CTX Various centrix verifies | |
| CU Channel unit | |
| CU Channel unit | |
| CU Control unit | |
| CU Customer unit | |
| CU/EQ Common update/equipment system | |
| CU/TK Common update/trunking system | |
| CUCRIT Capital utilization criteria | |
| CUG Closed user group (i.255 a) | |
| CUP Common update processor | |
| CUSTAT Control unit hardware status | |
| CUT Circuit under test | |
| CUTOVER Cutover (pre-cut) inactive state. | |
| CV OCC voice grade facility INTER/TRA blocal 1-26 | |
| CVN Vacant national number received (outgoing) | |
| CVR Compass voice response | |
| CW Call waiting (i.253 a) | |
| CW OCC wire pair facility INTER/TRA blocal 1-26 | |
| CWC City-wide centrex | |
| CWD Call waiting deluxe | |
| CXC Complex service order input checker | |
| CXM Centrex table management | |
| CXT Complex order inquiry for nac review | |
| CZ OCC access facility INTER/TRA blocal 1-26 | |
| CorNet Corporate network protocol (ECMA and CCITT q.930/931 oriented) |