| 摘要 |
PURPOSE:To make it possible to use the originating trunk of a specific high-urgency extension preferentially to normal extensions, by causing the originating trunk above to register an originating request in the all busy state into a private memory. CONSTITUTION:When an originating request is issued from specific extension 101, central control unit 103 decides whether originating trunks 102 are idle or not and performs originating connection if idle. In case of all busy, busy tone is transmitted. Then, specific extension 101 performs originating registering request by a hooking operation. Central control unit 103 compares storage position information of the specific extension of private register memory 105 and storage position information of specific extension 101 of the originating registering request with each other and registers information in private register memory 105 and register memory 106 for agreement and disagreement respectively. When central control unit 103 detects an idle originating trunk, memory 105 is first scanned to report it to specific extension 101. |
