Telephone system
Telephone system for making call to telephone number read...
Telephone system having a dial data changeover switch
Telephone system with several terminals on a single line
Telephone terminal
Telephone terminal apparatus and method
Telephone terminal capable of effectively making use of a...
Telephone terminal device
Telephone terminal device
Telephone terminal device having speech recognition unit
Telephone terminal device with means for detecting abandonment o
Telephone terminal equipment interface circuit
Telephone tone analysis system
Telephone tone detector
Telephone transmission circuit with improved switching device
Telephone trunk interface circuit
Telephone tuning and signaling system
Telephone updating via network provided information
Telephone visual signaling device
Telephone with a detachable key pad and method for operating it