RTP (Real-time Transport Protocol)

A protocol for delivering audio and video over IP networks with timestamps and sequence numbers for synchronization, jitter compensation, and packet loss detection. RTP itself does not guarantee delivery or order — it runs over UDP for low latency. RTCP (RTP Control Protocol) accompanies RTP to provide quality statistics, synchronization, and participant identification. RTP is used by SIP, WebRTC, and video conferencing systems for all media transport, with SRTP adding encryption.