https://app.knowbase.one/vault/rfc/docid/7865
RFC7244: RTP Control Protocol (RTCP) Extended Report (XR) Blocks for Synchronization Delay and Offset Metrics Reporting
Internet Engineering Task Force (IETF) H. Asaeda Request for Comments: 7244 NICT Category: Standards Track Q. Wu ISSN: 2070-1721 R. Huang ...