| 摘要 |
PURPOSE:To expand the range of incoming reply and outgoing enable of a handy set by sending a call number of the handy set from a connection device and making the master set and the handy set in the communication state via the connection device receiving a reply from the handy set. CONSTITUTION:When a connection device 3(3) radiates a radio wave of a call signal of a handy set 1 of a call number (ID) 14 in ease, the handy set 1 of the ID 14 exists in the coverage of the connection device 3(3), the handy set 1 uses a reception section 22 receiving an output of a frequency synthesizer 24 controlled by a control section B23 so as to demodulate the radio wave of the control channel received by an antenna 21. When the inputted ID 14 is discriminated to be its own ID, the control section B23 allows a transmission section 27 receiving an output of the frequency synthesizer 24 to modulate the radio wave and radiates the result as a radio wave of the channel from the antenna 28. The antenna 48 of the connection device 3(3) receives the radio wave, the reception section 46 demodulates the wave to allow the control section to discriminate the reply signal. Thus, it is possible for each handy set 1 to reply and to make a call to plural connection devices 3 and a wide area is covered. |
