| business process framework(noun, expression, technology, communication, system) |
| business support system(noun, expression, technology, communication, system) |
| business telecommunications system(noun, expression, technology, communication, system) |
| channel bank(noun, expression, technology, communication, system) |
| circuit switched telecommunications system(noun, expression, technology, communication, system) |
| circuit switching telecommunications system(noun, expression, technology, communication, system) |
| communications network(noun, expression, technology, communication, system) |
| communications subsystem(noun, expression, technology, communication, system) |
| consolidated naval telecommunications program system(noun, expression, technology, communication, system) |
| customer experience(noun, expression, technology, communication, system) |
| customer service system(noun, expression, technology, communication, system) |
| data terminal equipment(noun, expression, technology, communication, system) |
| digital data system(noun, expression, technology, communication, system) |
| diplomatic telecommunications system(noun, expression, technology, communication, system) |
| distributed management by telecommunications systems(noun, expression, technology, communication, system) |
| electronic telecommunications switching system(noun, expression, technology, communication, system) |
| emergency telecommunications system(noun, expression, technology, communication, system) |
| engineering and administrative data acquisition system(noun, expression, technology, communication, system) |
| federal telecommunications system(noun, expression, technology, communication, system) |
| fleet operational telecommunications automated control system(noun, expression, technology, communication, system) |