INCOMING CALL DISPLAY SYSTEM FOR RADIOTELEPHONY SYSTEM

摘要

PURPOSE:To shorten the time from the occurrence of an incoming call in a telephone circuit till the incoming call display on a radiotelephony set by confirming the reception of an incoming reply signal from the radiotelephony set in a standby state among radiotelephony sets accommodated in a radio telephone system and sending an incoming call display signal from a connection device. CONSTITUTION:A master set 1 or/and a connection device 2 is provided with a telephone set identification memory 142 to identify a radiotelephony set accommodated in the telephone system, and the master set 1 is provided with a state identification memory 143 storing the state at every radiotelephony set when the radiotelephony set is not in the standby state, or/and the connection device 2 is provided with an incoming call replay identification memory 233 storing the reception of the incoming reply signal from the radiotelephony set at every radiotelephony set. Then the radio channel is transited from the control channel to the speech channel depending on the coincidence of the content between the memories 232 and 233 in the connection device 2 or the reception of coincidence information sent depending on the coincidence of the content between the memories 142 and 143 in the master set 1 and the incoming display signal is sent from the connection device 2 to the radiotelephony set through the speech channel.