IP PHONE SYSTEM AND IP PHONE SET

摘要

PROBLEM TO BE SOLVED: To provide an IP phone system capable of canceling automatic redialing once selected by a user ex post facto. SOLUTION: The IP phone system is applied to an IP phone system wherein when a caller IP phone 12 transmits a call termination notice request message to a destination IP phone 11 during a speech, the destination IP phone 11 transmits a call termination notice message to the caller IP phone 12 at the end of the speech, and the caller IP phone 12 carries out automatic redialing on the basis of the call termination notice message. When the caller IP phone 12 receiving the call termination notice message is busy, the caller IP phone 12 carries out no automatic redialing but automatically transmits a call termination notice request canceling message to the destination IP phone. COPYRIGHT: (C)2005,JPO&NCIPI