https://app.knowbase.one/vault/rfc/docid/7032
RFC6465: A Real-time Transport Protocol (RTP) Header Extension for Mixer-to-Client Audio Level Indication
Internet Engineering Task Force (IETF) E. Ivov, Ed. Request for Comments: 6465 Jitsi Category: Standards Track E. Marocco, Ed. ISSN: 2070-1721 Telecom Italia ...