RTSP provides an extensible framework to enable controlled, on-demand delivery of real-time data, such as audio and video.Sources of data can include both live data feeds and stored clips.

• 特别是对于骨干网的互联和骨干网与互联网的互联互通，不但技术复杂，涉及通信协议、路由协议和众多接口，信息传输速度要求高，而且对网络安全性的要求也比其他场合高得多。