https://app.kbone.net/vault/rfc/docid/8361
RFC7702: Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): Groupchat
Internet Engineering Task Force (IETF) P. Saint-Andre Request for Comments: 7702 &yet Category: Standards Track S. Ibarra ISSN: 2070-1721 AG Projects ...