| 摘要 |
PROBLEM TO BE SOLVED: To judge the presence or absence of an incoming call request in a slave set even if an incoming call request command signal different in a slave set identification code is received in the slave set by adding the incoming call request slave set code to the incoming call request command and signal which is transmitted and outputted from the master set. SOLUTION: In the micro computer 17 of the master set 4, a system identification signal and the incoming call request slave set code, which are set in ROM 18, are read by receiving the input of an incoming call signal 104, the incoming call request command code 107 is generated and it is transmitted to a transmission circuit 15. It is converted into the incoming call request command signal for the slave set (1)1 and is transmitted as a signal Sd. The slave set (1)1 receives it and a signal SQLC101 and the command code in the incoming call request command signal are code-converted. A command code signal 102 is outputted and it is transmitted to a micro computer 10. It is judged that whether or not the system identification signal is matched with a system identification number set in ROM 11. |
