Instant Messaging and Presence Protocol (IMPP) was an IETF working group created for the purpose of developing an architecture for simple instant messaging and presence awareness/notification. It was created on 25 February 1999 (1999-02-25) and concluded on 8 September 2004 (2004-09-08).

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• Presence and Instant Messaging (PRIM)
• SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE)
• Extensible Messaging and Presence Protocol (XMPP) AKA Jabber

• "Instant Messaging and Presence Protocol (Impp)". – IETF Datatracker

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