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ME Consultancy are proud to be BT's Growth Partner of The Year 2003-2004
| T/R | Transmit - Receive Earth Terminal |
| TA | Terminal Adapter (CODEC to telephone circuit) |
| TA | Traffic Announcement |
| TABD | Trans-atlantic Business Dialog |
| TACS | Total Access Communications System |
| TAG | Technical AdHoc Group |
| TALO | Total Audience Listening Output |
| TAP | Telecommunications Advocacy Project |
| TAR | Trading Area Report |
| TARPAC | Television & Radio Political Action Committee |
| TARPEC | Television & Radio Political Education Committee |
| TASO | Television Allocations Study Organization |
| TBA | To Be Announced |
| TBC | Time Base Corrector |
| TBD | To be Determined |
| TBR | To be Recorded |
| TCA | Television Critics Association |
| TCAP | Transaction Capabilities Application Part |
| TCAU | Telecommunications Contract and Audit Unit (FBI) |
| TCH | Traffic Channel |
| TCM | Trellis Code Modulation |
| TCP | Transmission Conctrol Protocol |
| TD | Technical Director |
| TDA | U.S. Trade and Development Agency |
| TDAB | Terrestrial Digital Audio Radio |
| TDAC | Time Domain Alias Cancellation |
| TDCA | Television Decoder Caircuitry Act (of 1990) |
| TDD | Telecommunications Devices for the Deaf |
| TDFB | Telecommunications Development Fund Board |
| TDFD | Total Difference Frequency Distortion |
| TDM | Time Domain Multiplexing |
| TDMA | Time Division Multiple Access |
| TDR | Time Domain Reflectometer |
| TDRS | Tracking and Data Relay Satellite |
| TDS | Time Delay Spectrometry (for acoustics measurements) |
| TDSB | Terrestrial Digital Sound Broadcasting |
| TDSS | Television Data Systems Subcommittee (EIA) |
| TEF | Time-Energy-Frequency (in acoustics measurements) |
| TELRIC | Total Element Long Run Incremental Cost |
| TES | Terminal Earth Station |
| TF | Till Forbid (open ended advertising schedule) |
| TFM | Total Fraud Management |
| TFN | Till Further Notice (scheduled for broadcast) |
| TFT | Thin Film Technology |
| TFTS | Terrestrial Flight Telephone System (European) |
| TG | Task Group (of the ITU Study Groups) |
| THD | Total Harmonic Distortion |
| TI | Terrestrial Interference to space communications |
| TIA | Telecommunications Industry Association |
| TIC | Transport Interconnection Charge |
| TIES | Telecommunications Information Exchange Service (of the ITU) |
| TII | Transmitter Identification Information |
| TIIAP | Telecommunications Information Infrastructure Assistance Program |
| TILU | Telecommunications Industry Liaison Unit (FBI) |
| TIM | Transient Intermodulation Distortion |
| TINA-C | Telecommunications Information Networking Architecture Consortium |
| TINC | Telecommunications Information Network Consortium |
| TIO | Television Information Office |
| TIS | Travelers Information Service (on radio broadcast frequencies) |
| TLDN | Temporary Local Directory Number |
| TMC | Traffic Message Channel |
| TMC | Time Multiplex Component Video |
| TMF | Tamed Frequency Modulation |
| TMN | Telecommunications Management Network |
| TMP | Test Market Profile |
| TMS | Technical & Management Support |
| TMSI | Temporary Mobile Station Identity |
| TNAS | Telephone Network Access Subsystem |
| TNC | Terminal Node Controller |
| TNC | Threaded (Neill Concelman) Connector (for small coaxial cable) |
| TO | Transfer Orbit (satellites) |
| TOC | Television Operating Center |
| TOC | Table of Contents (on inner track of Compact Disc) |
| TOG | The Open Group |
| TOGAD | Tone Operated Gain Adjusting Device |
| TOS | Terms of Service |
| TOV | Threshold of Visibility (in TV impairment testing) |
| TP | Twisted Pair (Wire used for Computer & Phone networks) |
| TPO | Transmitter Power Output |
| TR | TransmitterReceiver |
| TRA | Telecommunications Resellers Association |
| TRAC | Telecommunications Research & Action Center |
| TRC | Telecommunications Resellers Association |
| TRF | Tuned Radio Frequency (type of receiver) |
| TRL | Telemetry Return Link |
| TRO | Temporary Restraining Order |
| TRS | Telecommunications Relay Service |
| TRS | Tip, Ring and Sleeve (three wire circuit patch plug) |
| TSA | Total Survey Area |
| TSA | Tsunami (Watch) Alert (for EAS Operations) |
| TSACC | Telecommunications Standards Advisory Council of Canada |
| TSAG | Telecommunication Sector Advisory Group (ITU Activity) |
| TSB | Telecommunications Systems Bulletin. |
| TSCC | Time Slot Control Channel |
| TSL | Transmitter to Studio Link |
| TSL | Time Spent Listening (used in audience studies) |
| TSS | Telecommunication Standardization Sector (of the ITU) |
| TSSC | Technical Standards Subcommittee |
| TT&C | Tracking, Telemetry & Telecommand (satellite) |
| TTA | Telecommunications Technology Association (Korea) |
| TTC | Telecommunications Technology Committee (Japannetwork interfaces) |
| TTCP | Technology Transfer Control Plan |
| TTIB | Transparent Tone In Band |
| TTNC | Telemetry, Tracking & Network Control (satellite) |
| TTS | Temporary Threshold Shift (in hearing) |
| TTY | Teletypewriter Terminal |
| TU | Typical Urban (area) |
| TVB | Television Bureau of Advertising |
| TVBS | Television Broadcast Satellite |
| TVI | Television (reception) Interference |
| TVID | Television Identification |
| TVR | Television Recorder/Recording |
| TVRO | TV Receive-only Satellite Earth Terminal |
| TVRS | Television Viewer Response Service |
| TVSC | Television Sound Channel |
| TWTA | Travelling Wave Tube Amplifier |
| TWX | Teletypewriter Exchange |
| TX | Radio Transmitter |