Technique for controlling ring volume and selectively receiving
Telecommunication system
Telecommunication system
Telecommunications device for reading power meters
Telecommunications management and control apparatus
Telecommunications system subscriber profile updating
Telemetry terminal
Telephone data communication switching system
Telephone dial-inbound data acquisition system with demand readi
Telephone exchange apparatus with facsimile broadcasting facilit
Telephone interface circuit
Telephone line monitoring apparatus and method
Telephone network application platform for supporting facsimile
Telephone network emulator useful in adapting a facsimile device
Telephone terminal device with function for preventing unnecessa
Telephone transfer apparatus using a special signal for transfer
Telephone VCR control
Telephone-entry system with electronic directory
Telephone-switched network, automatic meter-reading system based
Terminal apparatus