https://app.knowbase.one/vault/rfc/docid/3405
RFC3388: Grouping of Media Lines in the Session Description Protocol (SDP)
Network Working Group G. Camarillo Request for Comments: 3388 G. Eriksson Category: Standards Track J. Holler Ericsson ...
https://app.knowbase.one/vault/rfc/docid/6403
RFC5888: The Session Description Protocol (SDP) Grouping Framework
Internet Engineering Task Force (IETF) G. Camarillo Request for Comments: 5888 Ericsson Obsoletes: 3388 H. Schulzrinne Category: Standards Track Columbia University IS...