RTP SESSION INTERRUPTION DETECTION METHOD, VoIP GATEWAY APPARATUS, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an RTP session interruption detection method, a VoIP gateway apparatus, and a program for detecting interruption of an RTP session, even when the RTP session of a call is already in an interruption state, starting from the time of call setup completion.;SOLUTION: The VoIP gateway apparatus analyzes an identifier, denoting the presence/no presence of RTCP packet transmission in a call setup signal transmitted from an opposed terminal via a call control server at call setup and detects the interruption of the RTP session, by monitoring the received period of the RTCP packet from the point of time of the call setup completion in the call control session, when the identifier indicates the presence of the RTCP packet transmission.;COPYRIGHT: (C)2007,JPO&INPIT