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通过对多播会议模型和会议集中式控制模型的研究,以及对用户需求的分析,我们设计了一个新的会议模型。这个会议模型在设计上采用了集中式信令控制和分布式媒体作为基本的系统结构,为在Internet上召开网络会议提供了又一个解决方案。鉴于SIP协议简单、易扩展、可扩充等特性,我们利用SIP协议实现了这个会议系统。在本文中,对几个常用的会议控制功能,给出了详细的会议控制机制。
Through the study of the multicast conference model and conference centralized control model, and the analysis of user needs, we designed a new conference model. The conference model was designed with centralized signaling control and distributed media as the basic system architecture, providing yet another solution for convening a web conference over the Internet. In view of the SIP protocol is simple, easy to expand, scalable and other features, we use the SIP protocol to achieve the conference system. In this paper, a detailed conference control mechanism is given for several commonly used conference control functions.