| 摘要 |
PURPOSE:To restart communication without executing a call operation again after the restoration of a line by providing a means to transmit a call signal to a transmission destination again stored into a memory means before the disconnection of the line. CONSTITUTION:When the call signal is inputted through a handset 4, the call signal is received from a transmitter to a receiver on the other side to attain speaking, and the transmitting destination is stored into the memory means beforehand. During speaking, when the line between the transmitter and the receiver is disconnected before the switch of the handset 4 is turned off, the line disconnection is detected by a detecting means, and a control means 6 automatically transmits the call signal from the radio to the original transmission destination stored into the memory means after the restoration of the line based on the detection by the detecting means. Thus, when the line disconnection is generated caused by a sudden accident, the original transmitting destination can be connected without operating the handset after the restoration of the line. |
