| ==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) |
