RTP

RTP (Real-time Transport Protocol) is a protocol for streaming video and audio data over the internet, and other computer networks. It usually runs over UDP.

RTCP
RTCP (RTP Control Protocol) is a "sister protocol" of RTP. It transmits high-level information used for quality control, statistics, etc.

The term RTP can mean just the main RTP protocol, or it can be an umbrella term for both RTP and RTCP.

Related formats

 * ZRTP
 * RTSP - Real Time Streaming Protocol
 * SRTP - Secure Real-time Transport Protocol
 * RDT - Real Data Transport

Links

 * Real-time Transport Protocol
 * RTP Control Protocol
 * RFCs
 * There are upward of 200 RFCs related to RTP. You could try searching the full list of RFCs.
 * RFC 2736 (= BCP 36): Guidelines for Writers of RTP Payload Format Specifications
 * RFC 3550 (= STD 64): RTP: A Transport Protocol for Real-Time Applications
 * RFC 3551 (= STD 65): RTP Profile for Audio and Video Conferences with Minimal Control
 * RFC 4170 (= BCP 110): Tunneling Multiplexed Compressed RTP (TCRTP)
 * RFC 4961 (= BCP 131): Symmetric RTP / RTP Control Protocol (RTCP)