gb 2

Finally the PC based on desktop multipoint audiovisual conference system has been implemented, which supports the multipoint audio mixing, endpoint vedio selection and data service.

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 。