Radio telephone apparatus having automatic answering function fo

Realcall message delivery system with echo cancellation

Recorder control apparatus for automatic telephone answering sys

Recording system with response categorization

Remote controlling telephone unit for selectively activating one

Remote dictating apparatus

Remote hang-up detector

Remote terminal for use with central dictation apparatus

Remote-control telephone answering system and method

Remote-control telephone answering system and method

Remotely operable telephone answering device and method of...

Reprogrammable call forwarding device

Reset system for telephone answering machine in event of power f

Reset system for telephone answering machine in the event of a p

Ring voice message generating device and method of automatic ans