Telephone operator mid-call queuing interval system and associat

Telephone operator voice storage and retrieval system

Telephone operator voice storage and retrieval system

Telephone power interruption data backup apparatus

Telephone recycling system

Telephone registration and cancellation control in a wide area c

Telephone registration system for schools

Telephone ringing adapter for operating upon reception of a pres

Telephone routing system with queuing and voice messaging capabi

Telephone set

Telephone set device capable of vocalizing a telephone...

Telephone set for an integrated services digital network (ISDN)

Telephone set for handling a call

Telephone set with on hold function

Telephone signal classification and phone message delivery metho

Telephone speech recognition system

Telephone station account number dialing device and method

Telephone switching system and method for controlling incoming t

Telephone switching system with data integration

Telephone system