rtp protogelRTP stands for Real-time Transport Protocol. What is the RTP protocol? RTP is defined in IETF RFC 3550, with many additional RFCs referring to it and adding more functionality to it. RTP isThis protocol, RTP, was developed in the IETF and is in widespread use. The RTP standard actually defines a pair of protocols, RTP and the Real-time Transport Control Protocol (RTCP).