Processor-assisted communication system using tone-generating te
Programmable data access arrangement having combined command sig
Programmable universal modem system and method for using the sam
Public switched telephone network access to public data network
Public telephone network
Public telephone network including a distributed imaging system
Public telephone network including a distributed imaging system
Public terminal for access to a computer network
Public terminal receptacle
Public terminal receptacle
Push button phone capable of sending to the telephone line alpha
Push/pull modem interface circuit
Push/pull system for exchanging data between a terminal and...
Quick connect parameter exchange
Quick connect parameter exchange
Rapid startup protocol for communication between a plurality of
Re-transmission method and apparatus in communication system usi
Real-time and non-real-time data multplexing over telephone line
Reconfigurable modem for a computer or the like
Recording/playback apparatus with telephone and its control...