Acronym
|
Description
|
|
T&I |
Testing and Integration |
|
T&M |
Time
and Material |
|
T&R |
Tip and Ring (the two local telephone wires) |
|
T/DC |
Tape/Disk Cabinet |
|
T/P |
Transaction Processing |
|
T/S |
Interface |
|
T1 |
1.544 Mbps, 24 channels (equivalent to DS1) |
|
T1C |
3.152 Mbps, 48 channels (equivalent to DS1C or two
DS1s) |
|
T1FAC |
T1 Facility |
|
T2 |
6.312 Mbps, 96 channels (equivalent to DS2 or four
DS1s) |
|
T-2009 |
Basic ISDN set |
|
T-2112 |
ISDN 12-button set |
|
T-2317 |
ISDN 16-button set |
|
T3 |
44.736 Mbps, 672 channels (equivalent to DS3 or 28
DS1s) |
|
T-3000 |
ISDN digital telephone |
|
T3C |
90 Mbps, 1344 channels (equivalent to DS3C or two
DS3s) |
|
T3D |
135 Mbps, 2016 channels (equivalent to DS3D or
three DS3s) |
|
T3E |
180 Mbps, 2688 channels (equivalent to DS3E or four
DS3s) |
|
T4 |
274 Mbps, 4032 channels (equivalent to DS4 or six
DS3s) |
|
TA |
Terminal Adaptor (card) (AT&T) |
|
TA |
Trouble Aids |
|
TAC |
Technical
Advisory Center |
|
TAC |
Telenet Access Controller |
|
TAC |
Test Access Circuit |
|
TAC |
Trunk Access Control |
|
TACS |
Total Access Communications System |
|
TADIL |
Tactical Digital Information Link |
|
TADSS |
Tactical Automatic Digital Switching System |
|
TAFAS |
Trunk Answer From Any Station |
|
TAL |
Tandem
Application Language |
|
TAMS |
Technical and Management Services |
|
TAMS |
Telenet Access Management System |
|
TAN |
Test Access Network |
|
TAP |
T1 Access Partitioning |
|
TAP |
Total
Assets Protection |
|
TAPA |
Total Army Personnel Agency |
|
TARGA |
Truevision Advanced Raster Graphics Adapter |
|
TAS |
Technical Assistance Service (Northern Telecom
Inc.) |
|
TAS |
Telephone Answering Service |
|
TAS |
Test Access Slot |
|
TASC |
Technical
Assistance Service Center |
|
TASC |
Telecommunications Alarm Surveillance and Control
System |
|
TASI |
Time Assignment Speech Interpolation |
|
TASTE |
Trunks,
Access, Switch and Transmission Evaluator |
|
TAT |
Transatlantic cable |
|
TAU |
Test Access Unit |
|
TAU |
Trunk Access Unit |
|
TAXIR |
Taxonomic Information Retrieval |
|
TBA |
To
Be Assigned |
|
TBCC |
Test Bus Control Circuit |
|
TBCU |
Test Bus Control Unit |
|
TBD |
To Be Decided |
|
TBD |
To
Be Determined |
|
TBM |
Terabit Memory |
|
TBS |
The
Billing Solution |
|
TBS |
To
Be Supplied |
|
TC |
Technical Control |
|
TC |
Telecommunications |
|
TC |
Terminal Controller (Northern Telecom Inc. DMS-100) |
|
TC |
Test Code (card) |
|
TC |
Toll Center |
|
TC |
Transaction
Capabilities |
|
TC |
Transaction Capability |
|
TC |
Trunk Concentrator |
|
TC |
Type Cabinet |
|
TCAM |
Telecommunications Access Methods |
|
TCAP |
Transaction
Capabilities |
|
TCAP |
Transaction Capability Application Part (SS7) |
|
T-carrier |
Hierarchy of digital systems designed to carry
speech and other signals in digital form |
|
TCAS |
T-carrier Administration System (database) |
|
TCBH |
Time-Consistent Busy Hour |
|
TCI |
Telephone Circuit Inventory |
|
TCM |
Time Compression Multiplex |
|
TCM |
Traveling Class Mark |
|
TCMS |
Telecommunications Control Management System
(Astra-TCMS Computer system) |
|
TCN |
Travel
Card Number |
|
TCO |
Targeted Calling Option |
|
TCO |
Telenet Central Office |
|
TCOS |
Traveling Class of Service |
|
TCP |
Transfer Control Protocol |
|
TCP/IP |
Transmission Control Protocol/Internet Protocol |
|
TCR |
Transaction Confirmation Report |
|
TCRS |
Tax
Calculation & Reporting System |
|
TCS |
Table
Control System |
|
TCT |
Tandem Connecting Trunk |
|
TCVXO |
Temperature Compensated/Voltage controlled Crystal
Oscillator |
|
TD |
Tone Decoder |
|
TD |
Transmitter-Distributor |
|
TD&EO |
Test
Data & Expected Outcome |
|
TDA |
Traffic Data Analysis (Suntel C3 computer
subsystem) |
|
TDB |
Terminal Descriptor Block |
|
TDM |
Time Division Multiplexing |
|
TDM |
Trunk Data Module |
|
TDMA |
Time Division Multiple Access |
|
TDN |
Time Division Network |
|
TDN |
Toll Denied |
|
TDR |
Time Division Reflectometer |
|
TDS |
Traffic
Data Studies System |
|
TDS |
Training Course Development Standard |
|
T-DSL |
T Digital Subscriber Loop |
|
TDSU |
T1 Digital Service Unit |
|
TDT |
Telenet Diagnostic Tool |
|
TDT2 |
Telenet Diagnostic Tool 2 |
|
TDV |
Toll Diversion |
|
TE mode |
Transverse Electric mode |
|
TE1 |
Terminal Equipment Type 1 |
|
TE2 |
Terminal Equipment Type 2 |
|
TEHO |
Tail End Hop Off |
|
TEI |
Terminal Endpoint Identifier |
|
TELECOM |
Telecommunications services (or equipment) |
|
TEM mode |
Transverse Electromagnetic mode |
|
TEMPEST |
Electronic Emissions Security |
|
TEMPO |
Telecommunications Modernization Project (Pentagon) |
|
TES |
Toll Essential Service |
|
TF |
Trunk Frame |
|
TFPC |
Toll
Fraud Prevention Committee |
|
TFS |
Traffic Subsystem |
|
TFTP |
Trivial File Transfer Protocol |
|
TG |
Trunk Group |
|
TG5 |
Translation Guide 5ESS |
|
TGIN |
Trunk
Group Information |
|
THIS |
Trouble Handling Information System |
|
TI |
Texas Instruments |
|
TI |
Trouble Indicators |
|
TIA |
Technical Information Agreement |
|
TIAC |
Telecommunications Industry Advisory Committee
(California) |
|
TIAS |
Telephone Inventory and Accounting System |
|
TIC |
Telephone Interface Card |
|
TICCIT |
Time-Shared Interactive Computer-Controlled
Informational Television |
|
TIE |
Terminal Interface Equipment |
|
TIES |
Total Integrated Engineering System |
|
TIF |
Tandem Interface Frame |
|
TIF |
Telephone Interference Factor |
|
TIF |
Terminal Interface |
|
TIFF |
Tagged Image File Format |
|
TIMS |
Treasury Information Management System |
|
TINP |
Telenet Internal Network Protocol |
|
TIP |
Technical
Information Paper |
|
TIP |
Terminal Interface Processor (or Terminal Interface
Message Processor) |
|
TIR |
Total Internal Reflection |
|
TIR |
Trouble
Incident Report |
|
TIRKS |
Telecommunications
Interoffice Network WMQem |
|
TIU |
Terminal Interface Unit |
|
TIU |
Test
Interface Unit |
|
TIV |
Test
Integration/Validation |
|
TL |
Transmission Level |
|
TLC |
T-Interface Line Card |
|
TLM |
Trouble Locating Manual |
|
TLN |
Trunk Line Network |
|
TLP |
Transmission (Test) Level Point |
|
TLP |
Trouble Locating Process (or Procedure) |
|
TLSI |
Toll Loop Supervision Incoming |
|
TLSO |
Toll Loop Supervision Outgoing |
|
TLWS |
Trunk and Line Work Station |
|
TM |
Terminal Maintenance |
|
TM |
Traffic Measurement |
|
TM |
Trunk Module |
|
TM - MTA |
Telemail - Message Transfer Agent |
|
TM mode |
Transverse Magnetic mode |
|
TMC |
Telemarketing
Center |
|
TMC |
The
Meeting Channel (P) |
|
TMCU |
Time Multiplexed Control Unit |
|
TMDSE |
Test
Measurement Diagnostic and Simulation Equipment |
|
TME |
Trunk
Maintenance Equipment |
|
TME |
Trunk Module Equipment |
|
TML |
Tandem Matching Loss (Northern Telecom Inc. DMS) |
|
TML |
Terminating Matching Loss |
|
TM-LC |
Telemail - Local Community |
|
TMR |
Triple Modular Redundancy |
|
TMRS |
Traffic Measurement and Recording System |
|
TMRS |
Traffic
Measurement and Recording System |
|
TMS |
Telecommunications Management Center |
|
TMS |
Testbed Management System |
|
TMS |
Time Multiplexed Switch |
|
TMS |
Translations
Management System |
|
TMS |
Transmission Management System |
|
TMS |
Trouble
Management System |
|
TMS |
Trunk
Monitor System |
|
TMS2 |
Time Multiplexed Switch - Model 2 |
|
TMSU |
Time Multiplexed Switch Unit |
|
TMSU2 |
Time Multiplexed Switch Unit - Model 2 |
|
TMT |
Transmission Maintenance Terminal |
|
TNDS |
T1 Network Diagnostic System |
|
TNDS |
Total Network Data System |
|
TNIC |
Transit Network Identifier Code |
|
TNMS |
Transmission
Network Management System |
|
TNP |
Toll Network Protection |
|
TNT |
Tools
and Techniques for Supervisors |
|
TOC |
Technical Operations Center |
|
TOC |
Technical Oversight Center |
|
TOD |
Time of Day |
|
TODS |
Transactions on Database Systems |
|
TOE |
Total Operating Expense |
|
TOMS |
Transactions on Mathematical Software |
|
TOP |
Task Oriented Practice |
|
TOP |
Technical Office Protocol |
|
TOPES |
Telephone Office Planning and Engineering System |
|
TOPLAS |
Transactions on Programming Languages and Systems |
|
TOPP |
Task Oriented Plant Practice |
|
TOPS |
Traffic Operator Position System |
|
TOPS |
Travel
Card Operator Services Core Team |
|
TORP |
Trunk Outage Results Plan |
|
TOS |
Trunk Out of Service |
|
TP |
Telenet Processor |
|
TP |
Toll point |
|
TP3 |
Telenet
Product |
|
TP4 |
Telenet
Product |
|
TPAM |
Teleprocessing Access Methods |
|
TPART |
Terminating
Partition |
|
TPD |
Test
Plan Development |
|
TPDIR |
Telenet Processor Directory |
|
TPDU |
Transport Protocol Data Unit |
|
TPNS |
Transaction Processing Network Services |
|
TPOS |
Telenet Processor Operating System |
|
TPP |
Technical
Practice and Procedure |
|
TPRF |
Telenet Processor Reporting Facility |
|
TPVM |
Telephony Peripheral Virtual Machine |
|
TQA |
Total Quality Assurance |
|
TQM |
Total Quality Management |
|
TRA |
Travel
Request Authorization |
|
TRACS |
Test
Repair Analysis Control System (MFG) |
|
TRC |
Terminating Restriction Codes |
|
TRCU |
Transmission Rate Converter Unit |
|
TRF |
Territory
Reassignment Forms |
|
TRIM |
Trouble Report Improvement Methodology |
|
TRIS |
Trouble
Reporting Information System |
|
TRK |
Trunk |
|
TRL |
Transistor Resistor Logic |
|
TRM |
Two Mile Optical Remote Switching Module |
|
TRMS |
Trouble Report Management Service |
|
TROC |
Trouble Reporting Operations Center |
|
TRPS |
Total
Recovery Planning System |
|
TRS |
Tax
Reporting System |
|
TRS |
Total
Requirements Statement (core teams) |
|
TRS |
Trouble Reporting System |
|
TRS |
Trouble
Reporting System |
|
TRUMP |
Trunk Maintenance Program (or Package) |
|
TSAP |
Transport Service Access Point |
|
TSB |
Time Switch Broadcasting |
|
TSC |
Technical
Service Coordinator |
|
TSCO |
Telecommunications Service Control Officer |
|
TSD |
Technical
Service Document |
|
TSF |
Trunk Switch Frame |
|
TSG |
Technical
Support Group |
|
TSG |
Telephone Security Group |
|
TSI |
Time Slot Interchanger |
|
TSIU |
Time Slot Interchange Unit |
|
TSIU2 |
Time Slot Interchange Unit - Model 2 |
|
TSMS |
Traffic Separations Measurement System |
|
TSO |
Technical Services Organization |
|
TSO |
Time
Share Option |
|
TSO |
Time Share Organization |
|
TSP |
Telecommunications Service Policy |
|
TSP |
Telecommunications Service Proprietary (system)
(AT&T) |
|
TSP |
Telecommunications System Priority |
|
TSP |
Teleprocessing Services Program - Remote
Computation |
|
TSPS |
Traffic Service Position System |
|
TSS |
Technical
Support Specialists |
|
TSS |
Time-Shared System |
|
TSS |
Transmission
Surveillance System |
|
TSSSST |
Time, Space, 2-Stage Space, Space, Time (switching
network) |
|
T-S-T |
Time-Space-Time (switching) |
|
TT |
Touch-tone |
|
TT |
Trouble
Ticket |
|
TTC |
Test Trunk Circuit |
|
TTC |
Trunk Test Center |
|
TTF |
Transmission Test Facility |
|
TTF |
Transmission Test Function |
|
TTF |
Trunk Test Facility |
|
TTI |
Telcommunication Technology, Inc. |
|
TTL |
Transistor-Transistor Logic |
|
TTMS |
Trouble Ticket Management System |
|
TTP |
Trunk Test Point |
|
TTS |
Tape
Tracking System |
|
TTS |
Trouble Tracking System |
|
TTT |
Transmission Test Trunk |
|
TTTN |
Tandem Tie Trunk Network |
|
TTU |
Transmission Test Unit |
|
TTY |
Teletype |
|
TTY |
Teletypewriter |
|
TTYC |
Teletypewriter Controller |
|
TU |
Trunk Unit |
|
TUCA |
Tape Cabinet |
|
TUPLE |
Table
Update Line Entry |
|
TUR |
Traffic Usage Recorder |
|
TUR |
Trunk Utilization Report |
|
TUR |
Trunk
Utilization Report |
|
TVC |
Trunk Verification by Customer |
|
TVRO |
Television Receive Only |
|
TWA |
Two-Way Alternate |
|
TWC |
Three-way Calling |
|
TWT |
Traveling Wave Tube |
|
TWX |
Teletypewriter Exchange service |
|
TX |
405 Mbps, 6048 channels (equivalent to nine DS3s) |
|
TX |
560 Mbps, 8064 channels (equivalent to 12 DS3s) |