Your environment must have a Sametime server with Web conferencing to use this feature.
要使用该特性，环境中必须有带有Web会议的Sametime服务器。
Web conferencing tools usually come as either hosted services or downloadable modules that can be deployed to an organization's own Web server.
Web会议工具通常提供为宿主服务或者能够部署到企业自有Web服务器上的可下载模块。
Most of existing video conferencing systems comply with H. 323 protocol, and have a video server to receive and transfer the voice and video.
目前的视频会议系统大多基于H . 323协议，在系统中由视频服务器来接收、转发音视频数据。
Because of the limitation of CPU, memory and bandwidth resource of the server, the quality of video and voice in conferencing gets worse quickly when the number of clients increases.
由于视频服务器的CPU、内存、网络带宽的资源有限性，当用户数目增多时，音视频的质量急骤下降。
The video conferencing system from server software and client software.
本视频会议系统由服务器软件和客户端软件组成。
The video conferencing system from server software and client software.
本视频会议系统由服务器软件和客户端软件组成。
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