http://www.rfc-editor.org/rfc/rfc2326.txt
RFC 2326: Real Time Streaming Protocol (RTSP), H. Schulzrinne, A. Rao, R. Lanphier1998-04-01T23:00:00-00:00The Real Time Streaming Protocol, or RTSP, is an application-level protocol for control over the delivery of data with real-time properties. RTSP provides an extensible framework to enable controlled, on-demand delivery of real-time data, such as audio and video. [STANDARDS-TRACK]