| 摘要 |
PURPOSE:To improve the system efficiency by using the same ID No. between both PBXs connected to each other via an exclusive line so as to attain the outgoing calls, incoming calls, the talking, etc., with use of the same mobile device in the areas of both PBXs. CONSTITUTION:A PBX 14 end a PBX 15 generalize an area A and an area B respectively. In this case, the ID No. of a mobile device 11 is equal to those of both PBX 14 and 15. If an outgoing call is given to the PBX 14 through a circuit for the device 11 in the area A, a CPU 16 of the PBX 14 stores the present register position of the device 11 and therefore sends a signal. to the PBX 15 in the area B via an exclusive line 20. Then the PBX 15 can give an incoming call to the device 11 in the area B via a connection device 13. Thus system is operated with high efficiency. |
