INCOMING CALL TRANSFER SYSTEM AND ITS EXCHANGE DEVICE

摘要

PROBLEM TO BE SOLVED: To individually set transfer destinations in accordance with the plural states of a transfer source only by means of easily setting incoming call transfer by means of a terminal. SOLUTION: A key telephone main device stores transfer destination information informed by a digital key telephone set (DKT) 3 in RAM 144 in a control unit 14. When an incoming call is generated to the digital key telephone set (DKT) 3, the key telephone main device 1 can judge whether a transfer destination is set in accordance with the busy or non-response state of the digital key telephone set (DKT) 3 being an incoming destination or the transfer destination is set when the incoming call is generated without relation by referring to transfer destination information stored in RAM 144. The busy or non-response state of the digital key telephone set (DKT) 3 is detected based on the judged result and the incoming call is transferred to the extension terminal of the transfer destination based on the detected result.