This Recommendation describes the detailed specification of reference points, signalling and control methods, and overall protocols of a visual surveillance system based on the requirements described in ITU-T Recommendation F.743 and the functional architecture described in the Recommendation H.626.
For the reference points between different functional entities relevant protocols are identified, such as protocols between PU and service platform, CU and service platform, PU and CU.
For the reference points in the same functional entity, the internal signaling is described, includes the signaling flow or information elements relevant for each reference point, such as the signaling for service control flow, media distribution flow in the service platform.
Message format and message text related to existing protocols (such as SIP, RTP, RTSP, HTTP) used in this recommendation are also provided.