| mobile virtual network enabler(noun, expression, technology, communication, system) |
| musolaphone(noun, technology, communication, system, telecommunications) |
| naval telecommunications system(noun, expression, technology, communication, system) |
| operations support system(noun, expression, technology, communication, system) |
| private trans-Atlantic telecommunications system(noun, expression, technology, communication, system) |
| protective distribution system(noun, expression, technology, communication, system) |
| public switched telephone network(noun, expression, technology, communication, system) |
| recent change memory administration center(noun, expression, technology, communication, system) |
| relay station(noun, expression, technology, communication, system) |
| service evaluation system(noun, expression, technology, communication, system) |
| spacecraft telecommunications system(noun, expression, technology, communication, system) |
| switched telecommunications system(noun, expression, technology, communication, system) |
| system integrity(noun, expression, technology, communication, system) |
| systems control(noun, expression, technology, communication, system) |
| technical control facility(noun, expression, technology, communication, system) |
| technological convergence(noun, expression, technology, communication, system) |
| telecommunications billing(noun, expression, technology, communication, system) |
| telecommunications billing system(noun, expression, technology, communication, system) |
| telecommunications control system(noun, expression, technology, communication, system) |
| telecommunications network(noun, expression, technology, communication, system) |