| 摘要 |
PURPOSE:To attain talking between a mobile telephone set and an external device via a main equipment and a repeater by providing the main equipment connecting to telephone lines, plural repeaters and plural mobile telephone sets connected to the repeaters in a radio wave. CONSTITUTION:In the case of making a call from a mobile telephone set 1 to a telephone line 8, when a dial button is operated, a radio wave representing a dial request signal is radiated from a transmitter 3. A repeater 5 nearby receives the wave, multiplexes a dial request data and sends the result to the main equipment 7 via an optical cable 6. The main equipment 7 uses a demultiplexed dial request data to connect the telephone line 8 and the repeater 5 giving the dial request, then the dial tone from the line 8 is sent to the telephone set 1. When the operator confirming the dial tone gives a dialing, a dial signal is sent to the circuit 8 via the repeater 5 and the equipment 7 to attain calling. Thus, a call to an external device from a wide location like a golf ground is attained. |
