| Subject | English | Thesaurus |
| st.exch., abbr. | ADC Telecommunications, Inc. Options | TLQ |
| abbr., astronaut. | Advanced Research in Telecommunications Systems ESA Programme | ARTES |
| mil., abbr. | Arty Telecommunications Center Automation Program | ATCAP |
| IT, abbr. | Association for Local Telecommunications Services | ALTS (organization, USA) |
| abbr. | Capital Region Emergency Services Telecommunications | CREST |
| comp., MS | Computer Supported Telecommunications Applications An international standard established by the European Computer Manufacturers Association (ECMA) that specifies an application's interface and protocols for monitoring and controlling calls and devices in a communications network | CSTA (Computer Supported Telecommunications Applications) |
| comp., MS | Computer Supported Telecommunications Applications | CSTA (An international standard established by the European Computer Manufacturers Association (ECMA) that specifies an application's interface and protocols for monitoring and controlling calls and devices in a communications network) |
| mil., abbr. | Department of the Army Telecommunications Center Automation Program | DATCAP |
| IT, abbr. | Federal Telecommunications Services - 2000 | FTS-2000 (USA) |
| NGO, abbr. | Foundation For Innovation Regional Services And Telecommunications | FIRST |
| tech., abbr. | Government Emergency Telecommunications Services | GETS |
| telecom., abbr. | Interactive Telecommunications Program | ITP |
| abbr. | International Conference on Telecommunications in Modern Satellite, Cable, and Broadcasting Services | TELSIKS |
| abbr. | Maryland Accessible Telecommunications Program | MAT (Alex Lilo) |
| telecom., abbr. | Networking And Telecommunications Services | NTS |
| mil., abbr. | Personal Communications Services/Universal Personal Telecommunications | PCS/UPT |
| USA | Specialized Telecommunications Assistance Program | STAP |
| abbr., astronaut. | Telecommunication Preparatory Programme | TPP |
| IT, abbr. | Telecommunications and Information Infrastructure Assistance Program | TIIAP (USA) |
| abbr., file.ext. | Telecommunications and Information Infrastructure Assistance Program | TIIAP (NII) |
| abbr. | Telecommunications and Internet converged Services and Protocols for Advanced Networking | TISPAN (http://www.rfcmd.ru/glossword/1.8/index.php fountik) |
| abbr., scottish | Telecommunications Command Control Program | TCCP (USA) |
| abbr. | Telecommunications Industry Ombudsman | TIO |
| telecom., abbr. | Washington Telecommunications Services and Operations | WTSO |
| telecom., abbr. | Wireless Telecommunication Services | WTS |
| telecom., abbr. | Wireless Telecommunication Services Facilities | WTSF |
| comp., net., abbr. | Wireless Telecommunications Information & Services | WTIS |
