| 摘要 |
PURPOSE:To make it unnecessary to repeat redialing to search an idle channel in a radio slave set even when dialing is disabled due to a radio channel busy state between a radio slave set and a connection device, a call channel busy state between the connection device and a private branch radio telephone system or between the telephone system and a line wire. CONSTITUTION:The private branch radio telephone system is provided with a dialing disablement managing part 19 for managing a radio slave set whose dialing is disabled due to busy, and at the time of securing a channel, a control part 20 informs the enablement of dialing to the slave set. In the case of a busy state, originating/terminating disablement is informed to a radio slave set whose position is registered in its radio zone and the place name of a connection device in another radio zone in which originating/terminating is enabled. |
