Realtime Transport Protocol

Network protocol responsible for delivering audio and video data over IP-based networks.

RTP doesn't have a fixed port, but operates on the range 16384-32767/udp. RTP implements some of the reliability features usually associated with TCP communications.

RTP works closely with RTCP to monitor the connection quality and to send reports back to the endpoints, which then can be used to finetune the Quality of Service parameters. Each RTP connection has a companion RTCP connection in order to do this.