RTX

RTX stands for retransmission.

In the context of WebRTC, this refers to IETF RC 4588 that defines a special RTP payload that is used to retransmit packets that were previously sent.

While retransmission is usually useless in RTC, there are times where it can make sense – especially if a previous frame needs to be used for the decoding of fresh frames.

About WebRTC Glossary

WebRTC Glossary is a collaborative space where users can learn more about WebRTC related terms. Anyone can also modify or add new terms to this glossary, but it requires registration to the site first.