IP TELEPHONE SYSTEM AND CALL TERMINATION RESPONSE RESULT NOTIFICATION METHOD IN THE SAME

PROBLEM TO BE SOLVED: To provide an IP telephone system easily determining a response result to the notice of simultaneous call termination from a line switching repeater even in an IP telephone terminal which does not perform a response operation. SOLUTION: The line switching repeater includes: a simultaneous call termination notification means for notifying the plurality of IP telephone terminals of the simultaneous call termination when detecting the simultaneous call termination; a detection means for detecting the event of stopping the notice of the simultaneous call termination; a sending means for sending out notice data for reporting the stop of the notice of the simultaneous call termination and abandoning a call to the plurality of IP telephone terminals when the event of stopping the notice of the simultaneous call termination is detected in the detection means; a generation means for generating event notice information for notifying the IP telephone terminals of the event detected in the detection means; and a means for including the event notice information generated in the generation means in the notice data. Each of the IP telephone terminals includes a means for extracting the event notice information from the notice data and holding it as a history, and a display means for reporting the event notice information to the user. COPYRIGHT: (C)2010,JPO&INPIT