IETF = XMPP (Jabber) is the official open standard. IETF Approves Jabber XMPP. Jabber Inc. announced today that the IETF has approved the XMPP protocol as a standard for instant messaging and presence. The standardization effort has been led by the Jabber Software Foundation [JSF], an independent group, who have been working with… [Get Real] [Marc's Voice]