| 摘要 |
PURPOSE:To increase the communication efficiency at absence transfer, by receiving the instruction of transfer of non-transter from the outgoing telephone set for the outgoing register trunk, and transmitting it to the central control unit, which performs transfer control according to the instruction of the caller. CONSTITUTION:The outgoing trunk ORT is connected to the outgoing telephone set Sa, and when the telephone set Sa selects the telephone set Sb under absence transfer request, the service tone indicating the absence transfer request. Further, the trunk ORT receives the instruction of transfer or non-transfer from the telephone set Sa, this is transferred to the central control unit CC, which performs transfer control according to the instruction from the telephone set Sa. Thus, whether absent transfer is made or non-transfer is made is selected by the will of the caller to increase the communication efficiency of absence transfer. |
