Method, equipment and system for initiator and receiver cancelling call

Abstract

The invention discloses a method, equipment and a system for a sponsoring party and a receiving party to remove a call, which aims to shorten the time needed by call removal. The method for a sponsoring party to remove a call of the embodiment of the invention comprises that: when a call needs to be removed, the sponsoring party stops sending media flow to a receiving party; the sponsoring party sends a call removal signaling to a network side through a signaling plane to remove the call and release the related media resource. The method for a receiving party to remove a call of the embodiment of the invention comprises that: when the receiving party receives the call removal signaling sent from the network side, the receiving party stop sending media flow to the sponsoring party; the receiving party sends a call removal signaling to the network side through a signaling plane to remove the call and release the related media resource. The invention does not need to make H.245 information interaction in the band, thereby reducing the time delay of removing calls and being capable of charging accurately.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for an initiator and a receiver to tear down a call. Background technique [0002] The H.324 protocol is a standard for low-rate multimedia communication terminals defined by ITU-T (ITU Telecommunication Standardization Sector) of the International Telecommunication Union. The main part of the protocol defines the multimedia terminal specifications applicable to PSTN networks. [0003] Based on the above H.324 protocol, H.324 terminals can simultaneously transmit audio, video and data media streams in one call, and use in-band H.245 signaling to control the opening and closing of various media streams, and the codec types used Wait. [0004] H.324 terminals can also communicate with various multimedia communication systems, including but not limited to Session Initial Protocol (SIP) networks (such as SIP networks in fixed networks, IMS networks, etc.), H.323...

AI Technical Summary

Problems solved by technology

Since this message exchange is end-to-end (between H.324 terminals and H.324 terminals, or between H.324 terminals and interworking nodes), it takes a long time, resulting in waste of network resources

And under abnormal circumstances, if the message is lost, according to the provisions of the H.245 protocol, the call teardown initiator needs to wait for the timer to expire, which will further prolong the call teardown time

[0020] In addition, during the period of in-band H.245 message exchange, since the signaling plane is still connected, additional billing will still be performed

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