| 摘要 |
PURPOSE:To connect plural radiotelephone sets to one wired telephone line by connecting a radiotelephone set having a replay to the wired telephone line together with the 1st radiotelephone set via a master set based on a reply signal from other radiotelephone sets to an incoming signal. CONSTITUTION:A control section 15 discriminates the presence of an incoming call based on a detection output signal of a detection circuit connected to a wired telephone line. When an incoming call to a master set 4 exists, that is, a call comes from a wired telephone line, the master set 4 inactivates a transmitter 16 to send an incoming signal including a channel designation signal designating a prescribed talking channel. The incoming signal is sent according to a prescribed priority to each radiotelephone set. The prescribed priority is decided based on the order of, e.g., read only memories 18, 18' inserted to an IC socket or the information stored in advance in the read only memories 18, 18'. |
