According to ITU H.323 standard and the RTP/RTCP protocol of IETF,a multipoint videoconferencing system based on IP multicasting is designed.It is totally implemented by software.

• 参照ITU制定的H.；323多点视频会议标准；有效地结合IETF的RTP/RTCP协议；提出在IP组播环境中实现纯软件的多点视频会议系统。