| 摘要 |
PURPOSE:To enable to use an extension telephone set as a secretary telephone set or a manager telephone set, by providing a secretary telephone registration memory and a manager telephone registration memory. CONSTITUTION:When an extension telephone set SUBB is called, it is detected with a channel controller SP, and the central controller CC connects the outgoing register ORT and SUBB. When the specific number is received from SUBB, CC reads out the secretary telephone registration memory device MEM from the manager telephone registration memory. The telephone number information of SUBA read out is processed as if it is received at ORT, allowing SUBB to be processed as if it is finished for dial of the telephone number of SUBA. CC calls out SUBA, and when SUBA responds, the channel displayed in dotted lines is closed via the intra-office trunk IOT, and SUBA can make communication with SUBB. |
