Method, device, terminal and multi-point control unit for realizing recovery of video conference

Abstract

This paper discloses a method, device, terminal and multipoint control unit for realizing video conference recovery. The method applied to the terminal includes: when the terminal successfully joins the video conference held by the main multi-point control unit MCU, establishes a first media channel based on a SIP connection with the main MCU, and the first media channel is set to activate the media transmission state; and The standby MCU establishes a second media channel based on the SIP connection, and the second media channel is set to the inactive media transmission state; the first media channel is used to transmit the media stream; after the main MCU fails and the main MCU and the standby MCU complete the active / standby switchover, The terminal joins the video conference resumed by the standby MCU through the established SIP connection with the standby MCU, the state of the second media channel is set to the active media transmission state, and the second media channel is used to Stream media. The technical solution in this paper can shorten the recovery time of the video conferencing system.

Description

technical field [0001] The present invention relates to the technical field of video conferencing, in particular to a method, device, terminal and multipoint control unit for realizing video conference recovery. Background technique [0002] In the video conferencing system, MCU (Multipoint Control Unit, multipoint control unit) is a key component of the video conferencing system. It interacts with multiple terminals to maintain audio and video intercommunication. Two independent MCUs, which are mutually active and standby, monitor each other's equipment running status through link keep-alive messages, and synchronize key information of video conferences in real time, including video conference capabilities, terminal lists, etc. [0003] Both MCUs are started during the video conference. The active MCU is responsible for the creation of the current video conference, the management of the video conference, and the signaling and media interaction with the terminal side. When t...

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Problems solved by technology

[0004] In related technologies, the video conference recovery method generally hangs up all terminals on the main MCU through the SIP (Session Initiation Protocol, session initiation protocol) server, and then creates a video conference by the standby MCU, and re-calls all terminals to join the video conference, but this The method needs to hang up the signaling between the MCU and the terminal side, and re-establish the call connection with the standby MCU. The terminal user can clearly feel the MCU switching. If there are many terminals, the terminals will join the video conference one by one, which will increase the switching time.

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