rtp protogelWhat is . Real-Time Transport Protocol (RTP)?. Real-time Transport Protocol (RTP) is a network protocol used for delivering audio and video data over the internetRTPRTCP applications use UDP port numbers in the unprivileged range from 1024 to 65535. All RTP sent to an even numbered UDP port, 2p where as all RTCP sent to UDP port 2p+1. RTCP