| 摘要 |
PURPOSE:To improve a service executing the incoming transfer, by dialing of an abbreviated number from an originating subscriber, when incoming is received in case a telephone set in which its abbreviated number has been registered is in the incoming transfer service. CONSTITUTION:In case when a subscriber SUB-A calls SUB-C from a telephone set SUB-B on the way of going out, the area corresponding to the subscriber memory in the control unit (not shown in the figure) is set or cleared by at first, dialing a special number for starting or stopping the incoming transfer from the SUB-A in advance. After the transfer start has been registered, in case when a subscriber who utilizes the abbreviated number service by the SUB-A call the SUB-C from the SUB-B on the way of going out, when the telephone number of the SUB-A is dialed, the selected number is received by the trunk IRT through the trunk ICT, it is discriminated that said number is the incoming to the telephone set which is starting the incoming transfer, and a talkie informing that the incoming transfer is executed is sent to the SUB-B from the talkie equipment TK. Subsequently, when the abbreviated number is dialed from the SUB-B, the incoming transfer is executed. |
