| 摘要 |
PURPOSE:To realize the registration and release of absence transfer with the same specific number, by collating an extension number with a calling extension number information or transferred extension number, when a specific number and an extension number are dialed, in an automatic exchanger having a variable absence transfer function. CONSTITUTION:After an extension EXT is connected to an outgoing register OR with a call start connection, when a specific number and a transferred extension number are dialed, they are received at a register OR and transmitted to a central controller CC via a bus line. After the central controller CC identifies the outgoing call relating to the absence transfer with the specific number, the transferred extension number and the allocated position of the extension EXT are compared, and they are not coincided, it is judged that the outgoing requires registration for registration processing. After the absence transfer registration, when it is desired to be released, the specific number and the extension number of itself are dialed after call start connection. The central controller CC compares the calling extension number and the allocated position of the extension EXT, and if they are detected for coincidence, the transferred extension number registrated is erased for release of registration. |
