The IESG has approved the following document: - 'RTP/RTCP Multiplexing SDP Offer/Answer Clarifications' (draft-ietf-avtcore-5761-update-06.txt) as Proposed Standard This document is the product of the Audio/Video Transport Core Maintenance Working Group. The IESG contact persons are Alexey Melnikov, Ben Campbell and Alissa Cooper. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-avtcore-5761-update/ Technical Summary This document updates RFC 5761 by clarifying the SDP offer/answer negotiation of RTP and RTCP multiplexing. It makes it clear that an answerer can only include an "a=rtcp-mux" attribute in an SDP answer if the associated SDP offer contained the attribute. Working Group Summary The document was discussed in the meetings, and on the mailing list. The open issues were addressed and there are no open issues, there was consensus on the content of the document. Document Quality The document clarifies some text in RFC5761 based on implementation experience. Personnel Roni Even is the Document Shepherd. The responsible AD is Ben Campbell.