Telephone subscriber accomodation system in a broadband network
Telephone switch providing dynamic allocation of time division m
Telephone switch-integrated modem pool and broadband access...
Telephone switching control arrangement
Telephone switching network for digital speech transmission
Telephone switching system frame sync generator
Telephone switching system with switched line circuits
Telephone switching system with voice detection and answer super
Telephone system
Telephone system
Telephone system adapted to telemarketing
Telephone system and method for transmitting digital information
Telephone system and terminal device therein
Telephone system digital channel bank interface
Telephone system for ISDN and public telephone networks
Telephone system having multiple distinct sources and...
Telephone system having multiple sources and accessories...
Telephone system in which communication between stations is cont
Telephone system using pulse code modulated subscriber lines
Telephone system with monitor on hold feature