Telephone system and method for the intelligent use of individua
Telephone system for formatting caller ID information into a...
Telephone system processing of designated caller ID private call
Telephone terminal equipment in which telephone numbers of calle
Telephone with data acquisition means
Telephone with novel FSK decoding means, simultaneous off-hook c
Telephone with novel FSK decoding means, simultaneous...
Terminal device for network system
Text transmission using DTMF signalling
Trim phone circuit device having a calling line identification