| 摘要 |
PURPOSE:To expand sharply a narrow connection area which is regarded as a defect of a conventional cordless telephone set by making it possible to access one radio telephone set and plural connecting devices and attaining selective access based upon a voice or code signal. CONSTITUTION:A telephone exchange 2 having a pocket bell paging function and connected to x main wires 1 is connected to a data channel 8 having circuit holding, circuit connecting, 16Hz detecting, and radio paging device starting signal sending functions or the like through extensions 14, 15 and connected to plural connecting devices through main wires 16. These connecting devices are connected through plural radio telephone sets 13 and plural radio circuits 12. Consequently, the radio telephone set can be connected to any position in a service area constituted of collected radio zones included in plural connecting devices by providing the radio telephone set with a function enabled to be connected to the preceding optional transferred connecting device through the radio circuit.
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