Terminal to be coupled to a telecommunications network using rad
Text communication system
Text mail system using ISDN and ISDN communication terminal devi
Text messaging with embedded telephony action keys
Transaction terminal apparatus and method using host dial string
Transactional telecommunication system
Transceiver
Transformerless data access arrangement
Transmission and reception of data over a home network implement
Transmission control unit
Transmission system for telephone communications or data transfe
TV set with a telephone calls-rejecting function
Twisted pair communication system
Two-line telephone controller
Two-line telephone controller with hold feature
Two-tiered authorization and authentication for a cable data...
Two-way communication over a single transmission line...
Two-way voice & digital data analyzer for telephones