| 摘要 |
PURPOSE:To drastically shorten the time from packing up a handset until a call is executed by retrieving an unoccupied radio call channel at the time of standby and connecting a master machine and a slave machine through the above-mentioned unoccupied radio call channel to be retrieved at the time of incoming. CONSTITUTION:At the time of the standby, the unoccupied radio call channel not to be used between a master machine 2 and a slave machine 3 of another cordless telephone set 1 is retrieved, and when the unoccupied channel is located, the radio call channel number is recorded to a memory, and the above-mentioned radio call channel to be the unoccupied channel is transmitted with a weak output and set from the master machine 2 through a C channel for control to the slave machine 3. When the incoming is executed, the master machine 2 and slave machine 3 are immediately connected by radio to the unoccupied channel stored in the memory, and the call can be executed. |
