Telecommunication calling party number determination and...
Telephone apparatus
Telephone apparatus
Telephone caller location data retrieval
Telephone caller screening device
Telephone having phone number registration function, phone...
Telephone incoming signal discriminator
Telephone memory aid
Telephone terminal and caller ID utilization method
Telephone used in a telephone system for transmitting data...
Text-to-speech and MIDI ringing tone for communications devices
Third party regulation of calls through a particular line...