| 摘要 |
PURPOSE:To execute an individual radio call in a wide service area by constituting the titled system so that a transfer telephone set calls a called party through a master radio transmitting/receiving station and a slave radio transmitting/ receiving station via an exchange by detecting an incoming signal, based on a call from a calling party, and the same transfer operation as that of a usual transfer telephone can be executed, when the called party answers. CONSTITUTION:When an incoming signal from a first line 4a is detected in a certain transfer telephone system 6a by a call from a telephone set (for instance, a telephone set 2a), the transfer telephone system 6a checks whether an absence switch 8a is depressed or not. Unless it is depressed, a call by a handset 7a can be executed. On the other hand, when the absence switch 8a is depressed, the first line 4a is suspended, and subsequently, through a second line 5a and a telephone line network 1, either one of master radio transmitting/ receiving stations 9a-9p registered in advance, for instance, the transmitting/ receiving station 9a is called. The master radio transmitting/receiving station (in this case, it is supposed that 9a is called) called in such a manner makes an answer automatically to the call. |
