1298 lines
41 KiB
Plaintext
1298 lines
41 KiB
Plaintext
==Phrack Inc.==
|
|
|
|
Volume Two, Issue 20, File 11 of 12
|
|
|
|
|
|
Metal Shop Private's -- Acronyms
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
3ACC 3A Central Control
|
|
5XB COER 5 X-Bar Central Office Equipment Reports system
|
|
A/D Analog to Digital
|
|
AAX Automated Attendant eXchange
|
|
ABATS Automatic Bit Access Test System
|
|
ABHC Average Busy Hour Calls
|
|
ABS Alternative Billing Service
|
|
ABSBH Average Busy Season Busy Hour
|
|
ACB Annoyance Call Bureau
|
|
ACC Audio Communications Controller
|
|
ACCS Automated Calling Card Service
|
|
ACD Automatic Call Distributor
|
|
ACDA Automatic Call Disposition Analyzer
|
|
ACE Automatic Calling Equipment
|
|
ACF Advanced Communications Functions
|
|
ACH Attempt per Circuit per Hour
|
|
ACOF Attendant Control Of Facilities
|
|
ACP ACtion Point
|
|
ACSNET Acedemic Computing Services NETwork
|
|
ACSU Advanced t-1 Channel Service Unit
|
|
ACTS Automated Coin Toll Service
|
|
ACU Alarm Control Unit
|
|
ACU Automatic Calling Unit
|
|
ADCCP Advanced Data Communications Control Procedure
|
|
ADCI Automatic Display Call Indicator
|
|
ADN Abbreviated Dialing Number
|
|
ADS Advanced Digital System
|
|
ADS Audio Distribution System
|
|
ADS Auxilary Data System
|
|
AFACTS Automatic FACilities Test System
|
|
AFADS Automatic Force Adjustment Data System
|
|
AFSK Automatic Frequency Shift Keying
|
|
AIC Automatic Intercept Center
|
|
AICC Automatic Intercept Communications Controller
|
|
AIOD Automatic Identificated Outward Dialing
|
|
AIS Automatic Intercept System
|
|
ALBO Automatic Line BuildOut
|
|
ALFE Analog Line Front End
|
|
ALGOL ALGOrhythmic computer Language
|
|
ALI Automatic Location Indentification
|
|
ALIT Automatic Line Insulation Testing
|
|
ALRU Automatic Line Record Update
|
|
ALS Automated List Service
|
|
AM Administrative Module
|
|
AM Amplitude Modulation
|
|
AMA Automatic Message Accounting
|
|
AMACS AMA Collection System
|
|
AMARC AMA Recording Center
|
|
AMASE AMA Standard Entry
|
|
AMAT AMA Transmitter
|
|
AMATPS AMA TeleProcessing System
|
|
AMERITECH AMERican Information TECHnologies
|
|
AMPS Advanced Mobile Phone Service
|
|
AN Associated Number
|
|
ANA Automatic Number Announcement
|
|
ANC All Number Calling
|
|
ANI Automatic Number Identification
|
|
ANIF Automatic Number Identification Failure
|
|
ANSI American National Standards Institute
|
|
AOSS Auxilliary Operator Service System
|
|
AP Attached Processor
|
|
APC AMARC Protocol Converter
|
|
APS Automatic Protection Switch
|
|
AR Alarm Report
|
|
ARC Audio Response Controller
|
|
ARIS Audichron Recorded Information System
|
|
ARS Alternate Route Selection
|
|
ARSB Automated Repair Service Bureau
|
|
ARU Audio Response Unit
|
|
ASCII American Standard Code for Information Interchange
|
|
ASOC Administrative Service Oversight Center
|
|
ASPEN Automatic System for Performance Evaluation of the Network
|
|
AT Access Tandem
|
|
AT&T American Telephone and Telegraph
|
|
ATB All Trunks Busy
|
|
ATC Automatic Transmission Control
|
|
ATH Abbreviated Trouble History
|
|
ATI Automatic Test Inhibit
|
|
ATIS Automatic Transmitter Identification System
|
|
ATM Automatic Teller Machine
|
|
ATMS Automated Trunk Measurement System
|
|
ATP All Tests Pass
|
|
ATR Alternate Trunk Routing
|
|
ATRS Automated Trouble Reporting System
|
|
ATTC Automatic Transmission Test and Control circuit
|
|
ATTCOM AT&T COMmunications
|
|
ATTIS AT&T Information System
|
|
AUDIX AUDio Information eXchange
|
|
AUTODIN AUTOmatic DIgital Network
|
|
AUTOSEVCOM AUTOmatic SEcure Voice COMmunications
|
|
AUTOVON AUTOmatic VOice Network
|
|
AUXF AUXillary Frame
|
|
AVD Alternate Voice Data
|
|
B6ZS Bipolar with 6 Zero Subsitution
|
|
B911 Basic 911
|
|
BAMAF BELLCORE AMA Format
|
|
BANCS Bell Administrative Network Communications System
|
|
BAPCO Bellsouth Advertising & Publishing COmpany
|
|
BCC Blocked Call Cleared
|
|
BCD Binary Coded Decimal
|
|
BCD Blocked Call Delayed
|
|
BCS Batch Change Supplement
|
|
BDT Billing Data Transmitter
|
|
BEF Band Elimination Filter
|
|
BELLCORE BELL COmmunications REsearch
|
|
BER Bit Error Rate
|
|
BERT Bit Error Rate Test
|
|
BETRS Basic Exchange Telecommunications Radio Service
|
|
BHC Busy Hour Calls
|
|
BISP Business Information System Program
|
|
BITNET Because-It's-Time NETwork
|
|
BL/DS Busy Line/Don't Answer
|
|
BLF Busy Line Field
|
|
BLS Business Listing Service
|
|
BLV Busy Line Verification
|
|
BNS Billed Number Screening
|
|
BOC Bell Operating Company
|
|
BOR Basic Output Report
|
|
BORSCHT Battery, Overvoltage, Ringing, Supervision, Coding, Hybrid Test
|
|
ing
|
|
BOS Business Office Supervisor
|
|
BOSS Billing and Order Support System
|
|
BOT Beginning Of Tape
|
|
BPI Bits Per Inch
|
|
BPOC Bell Point Of Contact
|
|
BPS Bits Per Second
|
|
BPSS Basic Packet-Switching Service
|
|
BRAT Business Residence Account Tracking system
|
|
BRCS Business Residence Custom Service
|
|
BRI Basic Rate Interface
|
|
BRM Basic Remote Module
|
|
BS Banded Signaling
|
|
BSA Basic Serving Arrangements
|
|
BSBH Busy Season Busy Hour
|
|
BSC Business Service Center
|
|
BSCM BiSynchronous Communications Module
|
|
BSE Basic Service Elements
|
|
BSF Bell Shock Force
|
|
BSOC Bell Systems Operating Company
|
|
BSP Bell System Practice
|
|
BSRFS Bell System Reference Frequency Standard
|
|
BST Basic Services Terminal
|
|
BSTJ Bell System Technical Journal
|
|
BT Bus Terminator
|
|
BTAM Basic Telecommunications Access Message
|
|
BTL Bell Telephone Laboratories
|
|
BTN Billing Telephone Number
|
|
BTU British Thermal Unit
|
|
BVA Billing Validation Application
|
|
BVC Billing Validation Center
|
|
BWM Broadcast Warning Message
|
|
BWT Broadcast Warning TWX
|
|
BWTS BandWidth Test Set
|
|
CA CAble
|
|
CABS Carrier Access Billing System
|
|
CAC Calling-card Authorization Center
|
|
CAC Carrier Access Code
|
|
CAC Circuit Administration Center
|
|
CAC Customer Administration Center
|
|
CAD Computer-Aided Dispatch
|
|
CADV Combined Alternate Data/Voice
|
|
CAI Call Assembly Index
|
|
CAIS Colocated Automatic Intercept System
|
|
CALRS Centralized Automatic Loop Reporting System
|
|
CAMA Centralized Automatic Message Accounting
|
|
CAROT Centralized Automatic Reporting On Trunks
|
|
CAS Circuit Associated Signaling
|
|
CAS Computerized Autodial System
|
|
CAT Craft Access Terminal
|
|
CATLAS Centralized Automatic Trouble Locating and Analysis System
|
|
CBS CrossBar Switching
|
|
CBX Computerized Branch eXchange
|
|
CC Central Control
|
|
CC Common Control
|
|
CC Country Code
|
|
CCC Central Control Complex
|
|
CCC Computer Control Center
|
|
CCH Connections per Circuit per Hour
|
|
CCIR Comite' Consultatif International des Radio Communications
|
|
CCIS Common Channel Interoffice Signaling
|
|
CCITT Comite' Consultatif International Telegraphique et Telephonique
|
|
CCNC Common Channel Network Controller
|
|
CCNC Computer/Communications Network Center
|
|
CCR Customer-Controlled Reconfiguration
|
|
CCS Common Channel Signaling
|
|
CCS Hundred (C) Call Seconds
|
|
CCSA Common-Control Switching Arrangement
|
|
CCT Central Control Terminal
|
|
CCTAC Computer Communications Trouble Analysis Center
|
|
CCU COLT Computer Unit
|
|
CCV Calling Card Validation
|
|
CDA Call Data Accumulator
|
|
CDA Coin Detection and Announcement
|
|
CDAR Customer Dialed Account Recording
|
|
CDCF Cumulative Discounted Cash Flow
|
|
CDF Combined Distributing Frame
|
|
CDI Circle Digit Identification
|
|
CDO Community Dial Office
|
|
CDPR Customer Dial Pulse Receiver
|
|
CDR Call Dial Rerouting
|
|
CDS Craft Dispatch System
|
|
CEF Cable Entrance Facility
|
|
CEI Comparably Efficient Interconnection
|
|
CEV Controlled Environment Vault
|
|
CF Coin First
|
|
CFCA Communications Fraud Control Association
|
|
CFR Code of Federal Regulations
|
|
CGN Concentrator Group Number
|
|
CIC Carrier Identification Code
|
|
CICS Customer Information Control System
|
|
CII Call Identity Index
|
|
CIS Customized Intercept Service
|
|
CLASS Centralized Local Area Selective Signaling
|
|
CLASS Custom Local Area Signaling Service
|
|
CLDN Calling Line Directory Number
|
|
CLEI Common-Language Equipment Identification
|
|
CLI Calling Line Ident
|
|
CLID Calling Line IDentification
|
|
CLLI Common-Language Location Identification
|
|
CMAC Centralized Maintenance and Administration Center
|
|
CMC Construction Maintenance Center
|
|
CMDF Combined Main Distributing Frame
|
|
CMDS Centralized Message Data System
|
|
CMS Call Management System
|
|
CMS Circuit Maintenance System
|
|
CMS Communications Management Subsystem
|
|
CMS Conversational Monitoring System
|
|
CMT Cellular Mobile Telephone
|
|
CMU COLT Measurement Unit
|
|
CN Change Notice
|
|
CN/A Customer Name/Address
|
|
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
|
|
CO Central Office
|
|
COAM Customer Owned And Maintained
|
|
COC Circuit Order Control
|
|
COCOT Customer-Owned Coin-Operated Telephone
|
|
CODCF Central Office Data Connecting Facility
|
|
CODEC COder-DECoder
|
|
COE Central Office Equipment
|
|
COEES COE Engineering System
|
|
COLT Central Office Line Tester
|
|
COMSAT COMmunications SATellite
|
|
CONN CONNector
|
|
CONTAC Central Office NeTwork ACcess
|
|
CONUS CONtinental United States
|
|
CORNET CORperate NETwork
|
|
COSMIC COmmon Systems Main InterConnection frame system
|
|
COSMOS COmputerized System for Mainframe OperationS
|
|
COT Central Office Terminal
|
|
CP Control Program
|
|
CPC Cellular Phone Company
|
|
CPC Circuit Provisioning Center
|
|
CPD Central Pulse Distributor
|
|
CPE Customer-Premises Equipment
|
|
CPH Cost Per Hour
|
|
CPI Computer Private branch exchange Interface
|
|
CPM Cost Per Minute
|
|
CPMP Carrier Performance Measurement Plan
|
|
CPU Central Processing Unit
|
|
CRAS Cable Repair Administrative System
|
|
CRC Customer Record Center
|
|
CRC Cyclic Redundancy Check
|
|
CREG Concentrated Range Extension with Gain
|
|
CRFMP Cable Repair Force Management Plan
|
|
CRIS Customer Record Information System
|
|
CRS Centralized Results System
|
|
CRSAB Centralized Repair Service Answering Bureau
|
|
CRT Cathode Ray Tube
|
|
CSA Carrier Serving Area
|
|
CSACC Customer Service Administration Control Center
|
|
CSAR Centralized System for Analysis Reporting
|
|
CSC Cell Site Controller
|
|
CSDC Circuit Switched Digital Capability
|
|
CSNET Computer Science NETwork
|
|
CSO Central Services Organization
|
|
CSS Computer Sub-System
|
|
CSU Channel Service Unit
|
|
CTC Central Test Center
|
|
CTM Contac Trunk Module
|
|
CTMS Carrier Transmission Measuring System
|
|
CTO Call Transfer Outside
|
|
CTSS Cray Time Sharing System
|
|
CTT Cartridge Tape Transport
|
|
CTTC Cartridge Tape Transport Controller
|
|
CTTN Cable Trunk Ticket Number
|
|
CU Control Unit
|
|
CU Customer Unit
|
|
CU/TK Common Update/EQuipment system
|
|
CUCRIT Capital Utilization CRITeria
|
|
CVR Compass Voice Response
|
|
CWC City-Wide Centrex
|
|
D/A Digital to Analog
|
|
DA Directory Assistance
|
|
DACS Digital Access Cross-connect System
|
|
DACS Directory Assistance Charging System
|
|
DAIS Distributed Automatic Intercept System
|
|
DARC Division Alarm Recording Center
|
|
DARU Distributed automatic intercept system Audio Response Unit
|
|
DAS Directory Assistance System
|
|
DAS Distributor And Scanner
|
|
DAS-WDT Distributor And Scanner-Watch Dog Timer
|
|
DASD Direct Access Storage Device
|
|
DAV Data Above Voice
|
|
DB Decibel
|
|
DBA Data Base Administrator
|
|
DBAC Data Base Administration Center
|
|
DBAS Data Base Administration System
|
|
DBM DataBase Manager
|
|
DBS Duplex Bus Selector
|
|
DCCS DisContiguous Shared Segments
|
|
DCE Data Circuit-terminating Equipment
|
|
DCH D Channel Handler
|
|
DCL DEC Control Language
|
|
DCLU Digital Carrier Line Uint
|
|
DCM Digital Carrier Module
|
|
DCMS Distributed Call Measurement System
|
|
DCMU Digital Concentrator Measurement Unit
|
|
DCP Duplex Central Processor
|
|
DCPR Detailed Contuing Property Record (PICS/DCPR)
|
|
DCPSK Differential Coherent Phase-Shift Keying
|
|
DCS Digital Crosconnect System
|
|
DCT Digital Carrier Trunk
|
|
DCTN Defense Commercial Telecommunications Network
|
|
DCTS Dimension Custom Telephone Service
|
|
DDC Direct Department Calling
|
|
DDD Direct Distance Dialing
|
|
DDN Defense Data Network
|
|
DDS Digital Data Service
|
|
DDS Digital Data System
|
|
DDS Digital Dataphone Service
|
|
DDX Distributed Data eXchange
|
|
DEC Digital Equipment Corporation
|
|
DERP Defective Equipment Replacement Program
|
|
DES Data Encryption Standard
|
|
DEW Distant Early Warning (line)
|
|
DFI Digital Facility Interface
|
|
DFMS Digital Facility Management System
|
|
DIC Digital Interface Controller
|
|
DID Direct Inward Dialing
|
|
DIF Digital Interface Frame
|
|
DIM Data In the Middle
|
|
DIP Dual In-line Package
|
|
DISA Direct Inward System Access
|
|
DIU Digital Interface Unit
|
|
DLC Digital Loop Carrier
|
|
DLCU Digital Line Carrier Unit
|
|
DLL Dial Long Lines
|
|
DLS Digital Link Service
|
|
DLTU Digital Line/Trunk Unit
|
|
DLU-PG Digital Line Unit-Pair Gain
|
|
DM Delta Modulation
|
|
DMA Direct Memory Access
|
|
DMI Digital Multiplexed Interface
|
|
DML Data Manipulation Logic
|
|
DMS Data Management System
|
|
DMS Digital Multiplexed System
|
|
DMU Data Manipulation Unit
|
|
DN Directory Number
|
|
DNC Dynamic Network Controller
|
|
DNHR Dynamic Non Hierarchical Routing
|
|
DNIC Data Network Identification Code
|
|
DNR Dialed Number Recorder
|
|
DNX Dynamic Network X-connect
|
|
DOC Dynamic Overload Control
|
|
DOCS Display Operator Console System
|
|
DOJ Department Of Justice
|
|
DOM Data On Master group
|
|
DOTS Digital Office Timing Supply
|
|
DOV Data Over Voice
|
|
DP Demarcation Point
|
|
DP Dial Pulse
|
|
DPAC Dedicated Plant Assignment Center
|
|
DPC Destination Point Code
|
|
DPE Data Path Extender
|
|
DPN-PH Data Packet Network-Packet Handler
|
|
DPP Discounted Payback Period
|
|
DPSK Differential Phased-Shift Keying
|
|
DR Data Ready
|
|
DR Data Receive
|
|
DRMU Digital Remote Measurement Unit
|
|
DS Digital carrier Span
|
|
DS Digital Signal
|
|
DS Direct Signal
|
|
DSBAM Double-SideBand Amplitude Module
|
|
DSDC Direct Service Dial Capability
|
|
DSI Digital Speech Interpolation
|
|
DSN Digital Signal (level) N
|
|
DSP Digital Signal Processor
|
|
DSR Dynamic Service Register
|
|
DSS Data Station Selector
|
|
DSU Data Service Unit
|
|
DSX Digital System X-connect
|
|
DT Data Transmit
|
|
DT Di-group Terminal
|
|
DTAS Digital Test Access System
|
|
DTC Di-group Terminal Controller
|
|
DTC Digital Trunk Controller
|
|
DTE Data Terminal Equipment
|
|
DTF Dial Tone First
|
|
DTG Direct Trunk Group
|
|
DTIF Digital Transmission Interface Frame
|
|
DTMF Dual Tone Multi Frequency
|
|
DTU Di-group Terminal Unit
|
|
DUV Data Under Voice
|
|
DVX Digital Voice eXchange
|
|
E&M rEceive & transMit/Ear & Mouth signaling
|
|
E-COM Electronic Computer Originated Mail
|
|
E911 Enhanced 911
|
|
EADAS Engineering and Administrative Data Acquisition System
|
|
EADAS/NM EADAS/Network Management
|
|
EAEO Equal Access End Office
|
|
EARN European Academic Research Network
|
|
EAS Extended Announcement System
|
|
EAS Extended Area Service
|
|
EASD Equal Access Service Date
|
|
EBCDIC Extended Binary Coded Decimal Interexchange Code
|
|
ECAP Electronic Customer Access Program
|
|
ECC Enter Cable Change
|
|
ECCS Economic C (hundred) Call Seconds
|
|
ECF Enhanced Connectivity Facility
|
|
ECPT Electronic Coin Public Telephone
|
|
ECS Electronic Crosconnect System
|
|
EDAC Electromechanical Digital Adapter Circuit
|
|
EDI Electronic Data Interchange
|
|
EDP Electronic Data Processing
|
|
EDSX Electronic Digital Signal X-connect
|
|
EECT End-to-End Call Trace
|
|
EEDP Expanded Electronic tandem switching Dialing Plan
|
|
EEHO Either End Hop Off
|
|
EEI Equipment-to-Equipment Interface
|
|
EFRAP Electronic Feeder Route Analysis Program
|
|
EIA Electronics Industries Assotiation
|
|
EIS Expanded Inband Signaling
|
|
EISS Economic Impact Study System
|
|
EKTS Electronic Key Telephone Sets
|
|
EML Expected Measured Loss
|
|
EMS Expanded Memory Specification
|
|
ENFIA Exchange Network Facility for Interstate Access
|
|
EO End Office
|
|
EOE Electronic Order Exchange
|
|
EOS Extended Operating System
|
|
EOTT End Office Toll Trunking
|
|
EPL Electronic switching system Program Language
|
|
EPROM Erasable Programmable Read-Only Memory
|
|
EPSCS Enhanced Private Switched Communication Service
|
|
ER Error Register
|
|
ERAR Error Return Address Register
|
|
EREP Environmental Recording Editing and Printing
|
|
ERL Echo Return Loss
|
|
ERP Effective Radiated Power
|
|
ERU Error Return address Update
|
|
ESAC Electronic Surveillance Assistance Center
|
|
ESB Emergency Service Bureau
|
|
ESF Extended SuperFrame
|
|
ESL Emergency Stand-Alone
|
|
ESN Electronic Serial Number
|
|
ESN Electronic Switched Network
|
|
ESP Enhanced Service Provider
|
|
ESS Electronic Switching System
|
|
ESSX Electronic Switching Systen eXchange
|
|
ETAS Emergency Technical ASsistance
|
|
ETF Electronic Toll Fraud
|
|
ETN Electronic Tandem Network
|
|
ETS Electronic Tandem Switching
|
|
ETS Electronic Translation System
|
|
ETSACI Electronic Tandem Switching Adminstration Channel Interface
|
|
ETSSP ETS Status Panel
|
|
FA Fuse Alarm
|
|
FACS Facilities Assignment and Control System
|
|
FAR Federal Acquisition Regulation
|
|
FAST First Application System Test
|
|
FAT File Allocation Table
|
|
FCAP Facility CAPacity
|
|
FCC Federal Communications Commission
|
|
FCC Forward Command Channel
|
|
FCG False Cross or Ground
|
|
FCS File Control Systemction
|
|
FCS Frame Check Sequence
|
|
FDM Frequency-Division Multiplexing
|
|
FDP Field Development Program
|
|
FDX Full DupleX
|
|
FED Far End Data
|
|
FEMF Foreign Electro-Motive Force
|
|
FEPS Facility and Equipment Planning System
|
|
FEV Far End Voice
|
|
FGA Feature Group A
|
|
FGB Feature Group B
|
|
FGC Feature Group C
|
|
FGD Feature Group D
|
|
FIFO First In, First Out
|
|
FIOC Frame Input/Output Controller
|
|
FIP Facility Interface Processor
|
|
FIPS Federal Information Processing Standards
|
|
FM Frequency Modulation
|
|
FMAC Facility Maintenance And Control
|
|
FNPA Foreign Numbering Plan Area
|
|
FOC Fiber Optic Communications
|
|
FON Fiber Optics Network
|
|
FR Flat Rate
|
|
FRS Flexible Route Selection
|
|
FSK Frequency Shift Keying
|
|
FTG Final Trunk Group
|
|
FTP File Transfer Protocol
|
|
FTS Federal Telecommunications System
|
|
FX Foreign eXchange
|
|
GBS Group Bridging Service
|
|
GCS Group Control System
|
|
GEISCO General Electric Information Services COmpany
|
|
GHZ GigaHertZ
|
|
GID Group ID
|
|
GND GrouND
|
|
GOS Grade Of Service
|
|
GP Group Processor
|
|
GPIB General Purpose Interface Bus
|
|
GRD GRounD
|
|
GRP MOD GRouP MODulator
|
|
GSA General Services Administration
|
|
GSAT General telephone and electronics SATellite corporation
|
|
GTC General Telephone Company
|
|
GTE General Telephone Electronics
|
|
GTT Global Title Transmission
|
|
HCSDS High-Capacity Satellite Digital Service
|
|
HCTDS High-Capacity Terrestrial Digital Service
|
|
HDLC High-level Data Link Control
|
|
HDTV High Definition TV
|
|
HDX Half DupleX
|
|
HEAP Home Energy Assistance Program
|
|
HEHO High End Hop Off
|
|
HIC Hybrid Integrated Circuit
|
|
HNPA Home Numbering Plan Area
|
|
HNS Hospitality Network Service
|
|
HOBIC HOtel Billing Information Center
|
|
HOBIS HOtel Billing Information System
|
|
HP Hewlett-Packard
|
|
HPO High Performance Option
|
|
HSSDS High-Speed Switched Digital Service
|
|
HU High Usage
|
|
HUTG High Usage Trunk Group
|
|
HZ HertZ
|
|
I&M Installation & Maintenance
|
|
I/O Input/Output
|
|
IB Instruction Buffer
|
|
IBN Integrated Business Network
|
|
IC Independent Carrier
|
|
IC Inter-exchange Carrier
|
|
IC Inter-LATA Carrier
|
|
ICAN Individual Circuit ANalysis
|
|
ICC Interstate Commerce Commission
|
|
ICD Interactive Call Distribution
|
|
ICLID Individual Calling Line ID
|
|
ICM Integrated Call Management
|
|
ICSC Inter-LATA Customer Service Center
|
|
IDDD International Direct Distance Dialing
|
|
IDF Intermediate Distributing Frame
|
|
IDS Internal Directory System
|
|
IDVC Integrated Data/Voice Channel
|
|
IEEE Institute of Electrical and Electronics Engineers
|
|
IF Intermediate Frequency
|
|
IFRPS Intercity Facility Relief Planning System
|
|
IIN Integrated Information Network
|
|
IM Interface Module
|
|
IMAS Integrated Mass Announcement System
|
|
IMM Input Message Manual
|
|
IMT Inter-Machine Trunk
|
|
IMTS Improved Mobile Telephone Service
|
|
IN Intelligent Network
|
|
INC InterNational Carrier
|
|
INL Inter Node Link
|
|
INN Inter Node Network
|
|
INTELSAT INternational TELecommunications SATellite consortium
|
|
INWATS INward Wide Area Telephone Service
|
|
IO Inward Operator
|
|
IOC Input/Output Controller
|
|
IOCC International Overseas Completion Center
|
|
IOP Input-Output Processor
|
|
IOT Inter-Office Trunk
|
|
IP Information Provider
|
|
IPCS Interactive Problem Control System
|
|
IPL Initial Program Load
|
|
IPLAN Integrated PLanning And Analysis
|
|
IPM Impulses Per Minute
|
|
IPM Interruptions Per Minute
|
|
IPX Integrated Packet eXchange
|
|
IRC International Record Carrier
|
|
IROR Internal Rate Of Return
|
|
IS Interrupt Set
|
|
ISC International Switching Center
|
|
ISDN Integrated Service Digital Network
|
|
ISLM Integrated Services Line Module
|
|
ISLU Integrated Services Line Unit
|
|
ISN Information Systems Network
|
|
ISN Integrated Systems Network
|
|
ISO International Organization for Standardization
|
|
ISS Integrated Switching System
|
|
ISSN Integrated Special Services Network
|
|
ISUP Integrated Services User Part
|
|
ITS Institute of Telecommunication Science
|
|
ITSO Incoming Trunk Service Observation
|
|
ITU International Telecommunications Union
|
|
IVP Installation Verification Program
|
|
IVTS International Video Teleconferencing Service
|
|
IX Interactive eXecutive
|
|
IXM IntereXchange Mileage
|
|
JCL Job Control Language
|
|
JES Job Entry System
|
|
JIM Job Information Memorandum
|
|
JMX Jumbogroup MultipleX
|
|
JSN Junction Switch Number
|
|
JSW Junctor SWitch
|
|
K Kilobit
|
|
KBPS KiloBits Per Second
|
|
KDT Keyboard Display Terminal
|
|
KFT KiloFeeT
|
|
KHZ KiloHertZ
|
|
KP Key Pulse
|
|
KSR Keyboard Send-Receive
|
|
KTS Key Telephone Set
|
|
KTS Key Telephone System
|
|
LAC Loop Assignment Center
|
|
LADT Local Access Data Transport
|
|
LAIS Local Automatic Intercept System
|
|
LAMA Local Automatic Message Accounting
|
|
LAN Local Area Network
|
|
LAP Link Access Protocol
|
|
LAPD Link Access Procedure on the D channel
|
|
LASS Local Area Signaling Service
|
|
LATA Local Access and Transport Area
|
|
LATIS Loop Activity Tracking Information System
|
|
LBO Line Buildout
|
|
LBS Load Balance System
|
|
LCAMOS Loop CAble Maintenance Operation System
|
|
LCCIS Local Common Channel Interoffice Signaling
|
|
LCCL Line Card CabLe
|
|
LCCLN Line Card Cable Narrative
|
|
LCDN Last Called Directory Number
|
|
LCIE Lightguide Cable Interconnection Equipment
|
|
LCLOC Line Card LOCation
|
|
LCN Logical Channel Numbers
|
|
LCR Least Cost Routing
|
|
LCRMKR Line Card ReMarKs, Retained
|
|
LCSE Line Card Service and Equipment
|
|
LCSEN Line Card Service and Equipment Narrative
|
|
LDMTS Long Distance Message Telecommunications Service
|
|
LEAS LATA Equal Access System
|
|
LEC Local Exchange Carrier
|
|
LED Light-Emitting Diode
|
|
LENCL Line Equipment Number CLass
|
|
LF Line Finder
|
|
LFACS Loop Facilties Assignment And Control System
|
|
LIFO Last In, First Out
|
|
LLN Line Link Network
|
|
LMMS Local Message Metering System
|
|
LMOS Loop Maintenace Operations System
|
|
LOC Local Operating Company
|
|
LOCAP LOw CAPacitance
|
|
LOF Lock OFf-line
|
|
LON Lock ON-line
|
|
LPCDF Low Profile Combined Distributing Frame
|
|
LRAP Long Route Analysis Program
|
|
LRC Longitudal Redundancy Check
|
|
LRS Line Repeater Station
|
|
LRSS Long Range Switching Studies
|
|
LSB Lower Side Band
|
|
LSI Large-Scale Integrated circuitry
|
|
LSRP Local Switching Replacement Planning system
|
|
LSS Loop Switching System
|
|
LSV Line Status Verifier
|
|
LTAB Line Test Access Bus
|
|
LTC Local Test Cabinet
|
|
LTD Local Test Desk
|
|
LTF Lightwave Terminating Frame
|
|
LTF Line Trunk Frame
|
|
LTG Line Trunk Group
|
|
LTS Loss Test Set
|
|
LXE Lightguide eXpress Entry
|
|
M/W MicroWave
|
|
MA Maintenance Administrator
|
|
MACBS Multi-Access Cable Billing System
|
|
MADN Multiple Access Directory Numbers
|
|
MAN Metropolitan Area Network
|
|
MAP Maintenance and Administration Position
|
|
MAPSS Maintenance & Analysis Plan for Special Services
|
|
MAR Microprogram Address Register
|
|
MARC Market Analysis of Revenue and Customers system
|
|
MAS MAin Store
|
|
MAS Mass Announcement System
|
|
MASB MAS Bus
|
|
MASC MAS Controller
|
|
MASM MAS Memory
|
|
MATFAP Metropolitan Area Transmission Facility Analysys Program
|
|
MBPS MegaBits Per Second
|
|
MCIAS Multi-Channel Intelligent Announcement System
|
|
MCC Master Control Center
|
|
MCCS Mechanized Calling Card Service
|
|
MCH Maintenance CHannel
|
|
MCHB Maintenance CHannel Buffer
|
|
MCI Microwave Communications Incorporated
|
|
MCIAS Multi-Channel Intercept Announcement System
|
|
MCN Metropolitan Campus Network
|
|
MCS Meeting Communications Service
|
|
MCTRAP Mechanized Customer Trouble Report Analysis Plan
|
|
MDACS Modular Digital Access Control System
|
|
MDC Marker Distributor Control
|
|
MDC Meridian Digital Centrex
|
|
MDF Main Distribution Frame
|
|
MDU Marker Decoder Unit
|
|
MDX Modular Digital eXchange
|
|
MEC Mobile Equipment Console
|
|
MELD Mechanized Engineering and Layout for Distributing frames
|
|
MERS Most Economic Route Selection
|
|
MET Multibutton Electronic Telephone
|
|
MF Multi Frequency
|
|
MFENET Magnetic Fusion Energy NETwork
|
|
MFJ Modification of Final Judgement
|
|
MFR Multi-Frequency Receivers
|
|
MFT Metallic Facility Terminal
|
|
MG MasterGroup
|
|
MGT MasterGroup Translator
|
|
MHS Message Handling System
|
|
MHZ MegaHertZ
|
|
MICE Modular Integrated Communications Environment
|
|
MIN Mobile Identification Number
|
|
MINX Multimedia Information Network eXchange
|
|
MIR Micro-Instruction Register
|
|
MIS Management Information System
|
|
MISCF MISCellaneous Frame
|
|
MITS Microcomputer Interactive Test System
|
|
MLC MiniLine Card
|
|
MLCD Multi-Line Call Detail
|
|
MLT Mechanized Loop Testing
|
|
MMC Minicomputer Maintenance Center
|
|
MMGT MultiMasterGroup Translator
|
|
MMOC Minicomputer Maintenance Operations Center
|
|
MMS Main Memory Status
|
|
MMS Memory Management System
|
|
MMX Mastergroup MultipleX
|
|
MODEM MOdulator-DEModulator
|
|
MOG Minicomputer Operations Group
|
|
MOS Metal Oxide Semiconductor
|
|
MP Multi-Processor
|
|
MPCH Main Parallel CHannel
|
|
MPOW Multiple Purpose Operator Workstation
|
|
MPPD Multi-Purpose Peripheral Device
|
|
MRF Maintenance Reset Function
|
|
MS Maintenance State
|
|
MSC Media Stimulated Calling
|
|
MTF Master Test Frame,
|
|
MTP Message Transfer Part
|
|
MTR Mechanized Time Reporting
|
|
MTS Message Telecommunications Service
|
|
MTS Message Telephone Service
|
|
MTS Mobile Telephone Service
|
|
MTSO Mobile Telephone Switching Office
|
|
MTU Maintenance Termination Unit
|
|
MTU Media Tech Unit
|
|
MTX Mobile Telephone eXchange
|
|
MU Message Unit
|
|
MULDEM MULtiplexer-DEMultiplexer
|
|
MUX MUltipleX
|
|
MVP Multiline Variety Package
|
|
MVS Multiple Virtual Storage
|
|
MW MultiWink
|
|
MXU MultipleXer Unit
|
|
NA Next Address
|
|
NAC Network Administration Center
|
|
NAG Network Architecture Group
|
|
NAM Number Assignment Module
|
|
NAND Not-AND gate
|
|
NAS Numerical and Atmospheric Sciences network
|
|
NCC Network Control Center
|
|
NCCF Network Communications Control Facility
|
|
NCP Network Control Point
|
|
NCS National Communications System
|
|
NCTE Network Channel-Terminating Equipment
|
|
NDCC Network Data Collection Center
|
|
NEBS New Equipment-Building System
|
|
NESAC National Electronic Switching Assistance Center
|
|
NEXT Near-End X-Talk
|
|
NHR Non Hierarchial Routing
|
|
NI Network Interface
|
|
NM Network Module
|
|
NMC Network Management Center
|
|
NNX Network Numbering eXchange
|
|
NOC Network Operations Center
|
|
NOCS Network Operations Center System
|
|
NORGEN Network Operations Report GENerator
|
|
NOTIS Network Operator Trouble Information System
|
|
NPA No Power Alarm
|
|
NPA Numbering Plan Area
|
|
NPV Net Present Value
|
|
NSA National Security Agency
|
|
NSC Network Service Center
|
|
NSCS Network Service Center System
|
|
NSEC Network Switching Engineering Center
|
|
NSFNET National Science Foundation NETwork
|
|
NSPMP Network Switching Performance Measurement Plan
|
|
NT Network Termination
|
|
NT Northern Telecom
|
|
NTEC Network Technical Equipment Center
|
|
NTIA National Telecommunications and Information Agency
|
|
NTS Network Technical Support
|
|
NTS Network Test System
|
|
NUA Network User Address
|
|
NUI Network User Identification
|
|
NYNEX New York, New England and the unknown (X)
|
|
O-LTM Optical Line Terminating Multiplexer
|
|
OASYS Office Automation SYStem
|
|
OC Operator Centralization
|
|
OCC Other Common Carrier
|
|
OCE Other Common carrier channel Equipment
|
|
OCU Office Channel Unit
|
|
ODAC Operations Distribution Administration Center
|
|
ODD Operator Distance Dialing
|
|
ODDD Operator Direct Distance Dialing
|
|
ODS Overhead Data Stream
|
|
OFNPS Outstate Facility Network Planning System
|
|
OGT OutGoing Trunk
|
|
OMM Output Message Manual
|
|
OMPF Operation and Maintenance Processor Frame
|
|
ONAC Operations Network Administration Center
|
|
ONAL Off Network Access Line
|
|
ONI Operator Number Identification
|
|
OP Outside Plant
|
|
OPC Originating Point Codes
|
|
OPEOS Outside Plant planning, Engineering & construction Operations Sys
|
|
tem
|
|
OPM Outside Plant Module
|
|
OPS Off-Premises Station
|
|
OPSM Outside Plant Subscriber Module
|
|
OPX Off-Premises eXtension
|
|
OR Originating Register
|
|
ORB Office Repeater Bay
|
|
ORM Optical Remote Module
|
|
OS Operator Service
|
|
OS OutState
|
|
OSAC Operator Services Assistance Center
|
|
OSC Operator Services Center
|
|
OSC OSCillator
|
|
OSDS Operating System for Distributed Switching
|
|
OSI Open Systems Interconnection
|
|
OSO Originating Signaling Office
|
|
OSP OutSide Plant
|
|
OSPS Operator Service Position System
|
|
OSS Operator Service System
|
|
OUTWATS OUTward Wide Area Telecommunications Service
|
|
OW Over-Write
|
|
P/AR Peak-to-Average Ratio
|
|
PA Power Allarm
|
|
PA Program Address
|
|
PABX Private Automatic Branch eXchange
|
|
PACE Program for Arrangement of Cables and Equipment
|
|
PACT Prefix Access Code Translator
|
|
PAD Packet Assembly/Disassembly
|
|
PAM Pulse-Ampitude Modulation
|
|
PAN Personal Account Number
|
|
PANS Pretty Advanced New Stuff
|
|
PAS Public Announcement Service
|
|
PAT Power Alarm Test
|
|
PAX Private Automatic eXchange
|
|
PBC Peripheral Bus Computer
|
|
PBC Processor Bus Controller
|
|
PBD Pacific Bell Directory
|
|
PBX Private Branch eXchange
|
|
PC Primary Center
|
|
PCDA Program Controlled Data Acquisition
|
|
PCH Parallel CHannel
|
|
PCM Pulse-Code Modulation
|
|
PCO Peg Count and Overflow
|
|
PCTV Program Controlled TransVerters
|
|
PD Peripheral Decoder
|
|
PDF Power Distribution Frame
|
|
PDI Power and Data Interface
|
|
PDN Public Data Network
|
|
PDSP Peripheral Data Storage Processor
|
|
PE Peripheral Equipment
|
|
PECC Product Engineering Control Center
|
|
PFPU Processor Frame Power Unit
|
|
PH Parity High bit
|
|
PIA Plug-In Administrator
|
|
PIC Plastic-Insulated Cable
|
|
PIC Primary Independent Carrier
|
|
PICS Plug-in Inventory Control System (PICS/DCPR)
|
|
PIN Personal Identification Number
|
|
PIP Packet Interface Port
|
|
PL Parity Low bit
|
|
PM Peripheral Module
|
|
PM Plant Management
|
|
PMAC Peripheral Module Access Controller
|
|
PMU Precision Measurement Unit
|
|
PNB Pacific Northwest Bell
|
|
PNPN Positive-Negative-Positive-Negative devices
|
|
POB Periphal Order Buffer
|
|
POF Programmable Operator Facility
|
|
POP Point Of Presence
|
|
POTS Plain Old Telephone Service
|
|
PP Post Pay
|
|
PPD Peripheral Pulse Distributor
|
|
PPN Public Packet Switching
|
|
PPS Product Performance Surveys
|
|
PPS Public Packet Switching network
|
|
PRCA Puerto Rico Communications Authority
|
|
PREMIS PREMises Information System
|
|
PRI Primary Rate Interface
|
|
PROM Programmable Read-Only Memory
|
|
PROMATS PROgrammable Magnetic Tape System
|
|
PROTEL PRocedure Oriented Type Enforcing Language
|
|
PRS Personal Response System
|
|
PRTC Puerto Rico Telephone Company
|
|
PS Program Store
|
|
PSAP Public Safety Answering Point
|
|
PSC Prime Service Contractor
|
|
PSC Public Safety Calling system
|
|
PSC Public Service Commission
|
|
PSDC Public Switched Digital Capability
|
|
PSE Packet Switch Exchange
|
|
PSIU Packet Switch Interface Unit
|
|
PSK Phase-Shift Keying
|
|
PSM Packet Service Module
|
|
PSM Position Switching Module
|
|
PSN Packet Switched Network
|
|
PSN Public Switched Network
|
|
PSO Pending Service Order
|
|
PSS Packet Switch Stream
|
|
PSS Packet Switched Services
|
|
PSTN Public Switched Telephone Network
|
|
PSU Program Storage Unit
|
|
PSW Program Status Word
|
|
PT Program Timer
|
|
PTAT Private Trans Atlantic Telecommunications
|
|
PTT Postal Telephone and Telegraph
|
|
PTW Primary Translation Word
|
|
PUC Peripheral Unit Controller
|
|
PUC Public Utilities Commission
|
|
PVC Permanent Virtual Circuits
|
|
PVN Private Virtual Network
|
|
QAM Quadrature-Amplitude Modulation
|
|
QAS Quasi-Associated Signaling
|
|
QMP Quality Measurement Plan
|
|
QRSS Quasi Random Signal Source
|
|
QSS Quality Surveillance System
|
|
R Ring
|
|
R&R Rate & Route
|
|
R&SE Research & Systems Engineering
|
|
R/O Read/Only
|
|
R/W Read Write
|
|
R/WM Read/Write Memory
|
|
RAM Random-Access Memory
|
|
RAND Rural Area Network Design
|
|
RAO Regional Accounting Office
|
|
RAO Revenue Accounting Office
|
|
RAR Return Address Register
|
|
RASC Residence Account Service Center
|
|
RBHC Regional Bell Holding Company
|
|
RBOC Regional Bell Operating Company
|
|
RBOR Request Basic Output Report
|
|
RC Regional Center
|
|
RC Resistance-Capacitance
|
|
RC MAC Recent Change Memory Administration Center
|
|
RCC Radio Common Carrier
|
|
RCC Remote Cluster Controller
|
|
RCC Reverse Command Channel
|
|
RCF Remote Call Forwarding
|
|
RCLDN Retrieval of Calling Line Directory Number
|
|
RCM Remote Carrier Module
|
|
RCSC Remote Spooling Communications Subsystem
|
|
RCU Radio Channel Unit
|
|
RCVR ReCeiVeR
|
|
RDES Remote Data Entry System
|
|
RDS Radio Digital System
|
|
RDT Radio Digital Terminal
|
|
REC Regional Engineering Center
|
|
REM Remote Equipment Module
|
|
REMOBS REMote OBservation System
|
|
REN Ring Equivalence Number
|
|
REXX REstructred eXtended eXecuter language
|
|
RF Radio Frequency
|
|
RID Remote Isolation Device
|
|
RISLU Remote Integrated Services Line Unit
|
|
RLCM Remote Line Concentrating Module
|
|
RLT Remote Line Test
|
|
RMAS Remote Memory Administration System
|
|
RMR Remote Message Registers
|
|
RMS Root-Mean-Square
|
|
RN Reference Noise
|
|
RNOC Regional Network Operations Center
|
|
RO Receive Only
|
|
ROB Remote Order Buffer
|
|
ROC Regional Operating Company
|
|
ROH Receiver Off Hook
|
|
ROM Read-Only Memory
|
|
ROTL Remote Office Test Line
|
|
RQS Rate/Quote System
|
|
RQSM Regional Quality Service Management
|
|
RRO Reports Receiving Office
|
|
RSA Repair Service Attendant
|
|
RSB Repair Service Bureau
|
|
RSC Remote Switching Center
|
|
RSC Residence Service Center
|
|
RSCS Remote Source Control System
|
|
RSCS Remote Spooling Communications Subsystem
|
|
RSLE Remote Subscriber Line Equipment
|
|
RSLM Remote Subscriber Line Module
|
|
RSM Remote Switching Module
|
|
RSS Remote Switching System
|
|
RSTS/E Resource System Time Sharing/Enhanced
|
|
RSU Remote Switching Unit
|
|
RTA Remote Trunking Arrangement
|
|
RTL Resistor-Transistor Logic
|
|
RTM Regional Telecommunications Management
|
|
RTM Remote Test Module
|
|
RTS Remote Testing System
|
|
RTU Remote Trunking Unit
|
|
RTU Right To Use
|
|
RUM Remote User Multiplex
|
|
RWC Remote Work Center
|
|
RX Remote eXchange
|
|
S Sleeve
|
|
SAC Service Area Code
|
|
SAC Service Area Computer
|
|
SAC Special Area Code
|
|
SAG Street Address Guide
|
|
SAI Serving Area Interface
|
|
SALI Standalone Automatic Location Identification
|
|
SAMA Step by step Automatic Message Accounting
|
|
SAR Store Address Register
|
|
SARTS Switched Access Remote Test System
|
|
SAT Special Access Termination
|
|
SAT Supervisory Audio Tone
|
|
SBMS Southwestern Bell Mobile Service
|
|
SBS Skyline Business Systems
|
|
SC Scanner Controller
|
|
SC Sectional Center
|
|
SCAT Stromberg-Carlson Assistance Team
|
|
SCC Specialized Common Carrier
|
|
SCC Switching Control Center
|
|
SCCS Specialized Common Carrier Service
|
|
SCCS Switching Control Center System
|
|
SCF Selective Call Forwarding
|
|
SCM Subscriber Carrier Module
|
|
SCO Serving Central Office
|
|
SCOT Stepper Central Office Tester
|
|
SCOTS Surveillance & Control Of Transmissions System
|
|
SCP Signal Control Point
|
|
SCP Signal Conversion Point
|
|
SCP System Control Program
|
|
SCPC Signal Channel Per Carrier
|
|
SCPD Supplementary Central Pulse Distributor
|
|
SCU Selector Control Unit
|
|
SCX Specialized Communications eXchange
|
|
SD&D Specific Development & Design
|
|
SDIS Switched Digital Integrated Service
|
|
SDL Specification and Description Language
|
|
SDLC Synchronous Data Link Control
|
|
SDN Software-Defined Network
|
|
SDOC Selective Dynamic Overload Controls
|
|
SDP Service Delivery Point
|
|
SDR Store Data Register
|
|
SDS Switched Data Service
|
|
SDS Synchronous Data Set
|
|
SDSC Synchronous Data Set Controller
|
|
SEAS Signaling Engineering and Administration System
|
|
SEL SELector
|
|
SES Service Evaluation System
|
|
SF Single Frequency
|
|
SFMC Satellite Facility Management Center
|
|
SG SuperGroup
|
|
SGML Standard Generic Markup Language
|
|
SGMP Simple Gateway Management Protocol
|
|
SI Status Indicator
|
|
SIC Silicon Integrated Circuit
|
|
SID System IDentification
|
|
SIT Special Information Tone
|
|
SLC Subscriber Loop Carrier
|
|
SLE Screening Line Editor
|
|
SLIC Subscriber Line Interface Circuit
|
|
SLIM Subscriber Line Interface Module
|
|
SM Switching Module
|
|
SMAS Supplementary MAin Store
|
|
SMAS Switched Maintenance Access System
|
|
SMASF SMAS Frame
|
|
SMASPU SMAS Power Unit
|
|
SMDF Subscriber Main Distributing Frame
|
|
SMDI Subscriber Message Desk Interface
|
|
SMDR Station Message Detailed Recording
|
|
SMG SuperMasterGroup
|
|
SMS Service Management System
|
|
SMSA Standard Metropolitan Statistical Area
|
|
SMTP Simple Mail Transfer Protocol
|
|
SNA System Network Architecture
|
|
SNADS System Network Architecture Distribution Service
|
|
SNET Southern New England Telephone
|
|
SOAC Service Order Analysis Control
|
|
SOC Service Oversight Center
|
|
SOH Service Order History
|
|
SONAR Service Order Negotiation And Retrieval
|
|
SONDS Small Office Network Data System
|
|
SP Signal Processor
|
|
SP Signaling Point
|
|
SPAN Space Physics Analysis Network
|
|
SPAN System Performance ANalyzer
|
|
SPC Southern Pacific Communications
|
|
SPC Stored Program Control
|
|
SPCS Stored Program Control Systems
|
|
SPI Serial Peripheral Interface
|
|
SPUC/DL Serial Peripheral Unit Controller/Data Link
|
|
SQL/DS Structured Query Language/Data System
|
|
SRA Selective Routing Arrangement
|
|
SS Special Services
|
|
SSAS Station Signaling and Announcement Subsystem
|
|
SSB Single-SideBand
|
|
SSBAM Single-SideBand Amplitude Modulation
|
|
SSC Special Services Center
|
|
SSCP Subsystem Services Control Point
|
|
SSO Satellite Switching Office
|
|
SSP Signal Switching Point
|
|
SSP Sponsor Selective Pricing
|
|
SSP System Status Panel
|
|
SSPC SSP Controller
|
|
SSPRU SSP Relay Unit
|
|
SSTTSS Space-Space-Time-Time-Space-Space network
|
|
ST STart
|
|
STC Serving Test Center
|
|
STC Switching Technical Center
|
|
STD Subscriber Trunk Dialing
|
|
STDM Statistical Time Division Multiplexing
|
|
STP Signal Transfer Point
|
|
STS Shared Tenant Service
|
|
STS Space-Time-Space network
|
|
SVC Switched Virtual Circuits
|
|
SVS Switched Voice Service
|
|
SWB SouthWestern Bell
|
|
SX SimpleX signaling
|
|
SXS Step by (X) Step
|
|
SYC SYstem Control
|
|
SYSGEN SYStem GENeration
|
|
T Tip
|
|
T1/OS T1 carrier OutState
|
|
T1FE T1 carrier Front End
|
|
TA Terminal Adaptor
|
|
TA Transfer Allowed
|
|
TAC Terminal Access Circuit
|
|
TAP Telephone Assistance Plan
|
|
TAS Telephone Answering Service
|
|
TASC Technical Assistance Service Center
|
|
TASC Telecommunications Alarm Surveillance and Control system
|
|
TASI Time Assignment Speech Interpolation system
|
|
TAT TransAtlantic Telephone
|
|
TC Timing Counter
|
|
TC Toll Center
|
|
TCAP Transaction Capabilities Applications Port
|
|
TCAS T-Carrier Administration System
|
|
TCC Trunk Class Code
|
|
TCG Test Call Generation
|
|
TCM Time Compression Multiplexer
|
|
TCM Trellis Coded Modulation
|
|
TCR Transient Call Record
|
|
TDAS Traffic Data Administration System
|
|
TDC Tape Data Controller
|
|
TDC Terrestrial Data Circuit
|
|
TDD Telecommunications Device for Deaf
|
|
TDM Time Division Multiplexing
|
|
TE Terminal Equipment
|
|
TE Transverse Electric
|
|
TEHO Tail End Hop Off
|
|
TELSAM TELephone Service Attitude Measurement
|
|
TERM TERMinal
|
|
TFLAP T-carrier Fault-Locating Applications Program
|
|
TFS Trunk Forecasting System
|
|
TGC Terminal Group Controller
|
|
TGN Trunk Group Number
|
|
TH Trouble History
|
|
TIA Telephone Information Access
|
|
TIRKS Trunk Integrated Record Keeping System
|
|
TLM Trouble Locating Manual
|
|
TLN Trunk Line Network
|
|
TLP Transmission Level Point
|
|
TLTP Trunk Line and Test Panel
|
|
TM Transverse Magnetic
|
|
TMDF Trunk Main Distributing Frame
|
|
TMMS Telephone Message Management System
|
|
TMR Transient Memory Record
|
|
TMRS Traffic Measurement and Recording System
|
|
TMRS Traffic Metering Remote System
|
|
TMS Time-Multiplexed Switch
|
|
TN Telephone Number
|
|
TN Transaction Number
|
|
TNDS Total Network Data System
|
|
TNN Trunk Network Number
|
|
TNOP Total Network Operation Plan
|
|
TNPC Traffic Network Planning Center
|
|
TOPS Timesharing OPerating System
|
|
TOPS Traffic Operator Position System
|
|
TP Toll Point
|
|
TPMP Total network data system Performance Measurement Plan
|
|
TR Test Register
|
|
TR Transfer Register
|
|
TREAT Trouble Report Evaluation Analysis Tool
|
|
TRMTR TRamsMiTteR
|
|
TRR Tip-Ring Reverse
|
|
TSCPF Time Switch and Call Processor Frame
|
|
TSCPF Time Switch and Central Processor Frame
|
|
TSI Time Slot Interchanger
|
|
TSO Time Sharing Option
|
|
TSORT Transmission System Optimum Relief Tool
|
|
TSP Test SuPervisor
|
|
TSP Traffic Service Position
|
|
TSPS Traffic Service Position System
|
|
TSS Trunk Servicing System
|
|
TSST Time-Space-Space-Time network
|
|
TST Time-Space-Time network
|
|
TST Traveling-Wave Tube
|
|
TSTS Time-Space-Time-Space network
|
|
TT Trunk Type
|
|
TTC Terminating Toll Center
|
|
TTL Transistor-Transistor Logic
|
|
TTP Trunk Test Panel
|
|
TTS Trunk Time Switch
|
|
TTTN Tandem Tie Trunk Network
|
|
TTY TeleTYpewriter
|
|
TTYC TTY Controller
|
|
TUR Traffic Usage Recording
|
|
TUR Trunk Utilization Report
|
|
TWX TeletypeWriter eXchange
|
|
UCD Uniform Call Distribution
|
|
UIC User Identification Code
|
|
UID User ID
|
|
UITP Universal Information Transport Plan
|
|
UNISTAR UNIversal Single call Telecommunications Answering & Repair
|
|
USB Upper Side Band
|
|
USITA United States Independent Telephone Association
|
|
USO Universal Service Order
|
|
USOC Universal Service Order Code
|
|
USP Universal Sampling Plan
|
|
UUCICO Unix to Unix Copy Incoming Copy Outgoing
|
|
UUCP Unix to Unix Copy Program
|
|
VAN Value Added Network
|
|
VC Virtual Circuit
|
|
VCS Virtual Circuit System
|
|
VF Voice Frequency
|
|
VFY VeriFY
|
|
VGF Voice Grade Facility
|
|
VHF Very High Frequency
|
|
VINES VIrtual NEtwork Software
|
|
VIU Voiceband Interface Unit
|
|
VLSI Very Large-Scale Integrated circuitry
|
|
VM/SP Virtual Machine/System Product
|
|
VMCF Virtual Machine Communications Facility
|
|
VMR Volt-Meter Reverse
|
|
VMRS Voice Message Relay System
|
|
VMS Virtual Memory operating System
|
|
VMS Voice Mail System
|
|
VMS Voice Management System
|
|
VNF Virtual Network Feature
|
|
VNL Via Net Loss plan
|
|
VNLF Via Net Loss Factor
|
|
VODAS Voice Over Data Access Station
|
|
VPN Virtual Private Network
|
|
VRS Voice Response System
|
|
VSAM Virtual Storage Access Method
|
|
VSAT Very Small Aperature Terminal
|
|
VSB Vestigial SideBand modulation
|
|
VSE Virtual Storage Extended
|
|
VSR Voice Storage and Retrieval
|
|
VSS Voice Storage System
|
|
VSSP Voice Switch Signaling Point
|
|
VTAM Virtual Telecommunications Access Method
|
|
VTI Virtual Terminal Interface
|
|
VTOC Volume Table Of Contents
|
|
VTS Video Teleconferencing System
|
|
WAN Wide Area Network
|
|
WATS Wide Area Telephone Service
|
|
WC Wire Center
|
|
WCPC Wire Center Planning Center
|
|
WDT Watch Dog Timer
|
|
WM Work Manager
|
|
XB X-Bar
|
|
XBAR X-BAR
|
|
XBT X-Bar Tandem
|
|
XFE X-Front End
|
|
XMS eXtended Multiprocessor operating System
|
|
|
|
|
|
^*^
|
|
=========================================================================
|