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首先介绍国际电信联盟 (ITU -T)为IP网络的实时多媒体通信而制定的标准 :H .32 3协议 ,然后讨论了基于该协议的三层多媒体通信平台设计 ,最后在此平台上实现了多点视听会议系统 ,支持多点语音混合、终端选像和数据业务等功能 .
First of all, it introduces the standard of ITU-T for the real-time multimedia communication of IP network: H.3323 protocol, and then discusses the design of three-layer multimedia communication platform based on this protocol. Finally, Point audio-visual conferencing system to support multi-point voice mixing, terminal selection and data services and other functions.