Telephone lock unit
Telephone number parser for wireless local loop telephones
Telephone privacy device
Telephone privacy protector
Telephone ring registering device
Telephone service protection device
Telephone set having outbound call restriction logic circuit
Telephone system
Telephone system
Telephone usage control
Telephonic switching system with automatic port assignment capab
Telephony controller with functionality command converter
Telephony security system
Telephony security system
Telephony security system
Telephony security system
Telephony security system
Telephony security system
Termination number screening
Third party regulation of calls based on the caller and...