Cordless telephone system

Details Cordless telephone system Cordless telephone system

H - Electricity

04

M

379/11

H04M 1/725 (2006.01)

Patent

CA 1266932

Abstract of the Disclosure A cordless telephone system constituted by a switching station connected to a cable telephone exchanger and at least one telephone set connected to the switching station via a plurality of radio channels. The switching station has a controller which scans the radio channels and selects a nonused radio channel in response to a calling signal from the telephone exchanger, a signal generator for calling a telephone set, a signal detector for detecting a response signal from the telephone set, and a transmitter. The controller changes the number of radio channels to be scanned in accordance with the frequency of use of the radio channels and the transmitter sends a signal representing a changed number of radio channels. Each telephone set has a controller for scanning the radio channels, a signal detector for detecting the calling signal and the signal representing the number of channels from the switching station, and a transmitter for sending a response signal to the switching station.

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