This website provides complete information about the Extensible Messaging and Presence Protocol (XMPP), an open XML technology for presence and real-time communication developed by the Jabber open-source community in 1999.
This page compares the capabilities of Jabber/XMPP technologies with SIP/SIMPLE technologies. The Jabber/XMPP technologies are defined in RFCs produced by the IETF's XMPP<sep/>