| 摘要 |
PURPOSE:To enable to offer the transfer service as required, by restricting the connection of incoming call from a subscriber telephone set other than designated sets, through the designation of a subscriber telephone set on which no restriction is imposed for the connection in advance to the incoming call to the subscriber telephone set. CONSTITUTION:When a subscriber telephone set 1 makes a call and the number of the subscriber telephone set 2 is dialed, an outgoing register 3 receives it and a control circuit 4 identifies this number. The control circuit 4 retrieves the information designating the subscriber telephone set 1 and the content of a memory circuit 5 storing the connection nonrestriction subscriber telephone set information corresponding to the subscriber telephone set 2. If the memory circuit 5 has the same information as to the subscriber telephone number 1, the telephone sets 1 and 2 are connected, and if not, the connection is restricted. In this case, the content of the memory circuit 6 storing the connection representing terminal device information corresonding to the memory circuit 5 is retrieved to connect the terminal device designated at the memory circuit 6 with the subscriber telephone set 1. |
