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XCON在信令协议方面具有很好的独立性和可扩展性,是目前主流的紧耦合式会议框架,但是其中的会议Presence服务只能单向地发布通告给与会者,缺乏交互性不能满足用户需求.举手功能是远程会议中一种典型的交互式应用.提出一种基于标准协议的举手功能实现方法,首先设计了会议Presence状态文档,在此基础上扩展设计了支持举手功能的会议Presence状态文档;然后设计了基于会议Presence的举手功能的信令处理流程;最后给出了基于开放源代码的XCON会议框架中举手功能的原型实现.本文方法有助于促进多媒体数据会议中举手机制的标准化工作.
XCON has a very good independence and scalability in the signaling protocol and is the mainstream tightly coupled conference framework. However, the conference Presence service in XCON can only unidirectionally announce to participants, and the lack of interactivity can not satisfy users Requirements.How to raise the hand function is a typical interactive application in the teleconference.A method of raising the hand function based on the standard protocol is proposed.Firstly, the Presence status document of the conference is designed. Based on this, Then the Presence status document of the conference is presented, and then the signal processing flow of hands-on function based on the conference Presence is designed. Finally, the prototyping of the hand-lifting function in the XCON conference framework based on the open source is given.This method helps to promote the multimedia data conference In the lifting of the standardization of mobile phone work.