| 摘要 |
PURPOSE:To change easily a subscriber data of a calling extension to that of an extension being objective to switching, by selecting a special number representing a subscriber data switching request and a number designating the switching objective extension when a call is incoming from an optional extension. CONSTITUTION:When a subscriber of an extension A request the same service as that of the extension A to an extension B, a call is given from the extension B, and a special number representing the subscriber data switching request and the number of the extension A being the switching objective are transmitted to an outgoing register trunk ORT. Further, a CPUCC analyzes the received specific number and starts a subscriber data switching mechanism SDC. The mechanism SDC saves a subscriber data SDb stored in a head address mb obtained from the stored position of the calling extension B and makes the data equal to a subscriber data SDa corresponding to the number of the received extension A. Then, the CPUCC sets a channel P6 in a circuit network NW and returns an audible tone representing the end of subscriber data switching from a service tone trunk SVT to the extension B. |
