Instant Messaging Information Site

Instant messaging has been a hot technology for years, with standardization activities ongoing now for nearly a decade. But, the fruit of that labor is starting to pay off as the world begins to converge on interoperable instant messaging standards. The two popular standards that have emerged are XMPP and SIMPLE, with XMPP clearly well in front of SIMPLE in terms of deployment and breadth of client and server support.

Instant Messaging Standards

XMPP-related Standards

XMPP-related Papers

  • XMPP 101 (03/2009) XMPP 101

SIP-related Standards

  • RFC 3428 - SIP Extension for Instant Messaging
  • RFC 4479 - A Data Model for Presence
  • RFC 3863 - Presence Information Data Format (PIDF)
  • RFC 4480 - Rich Presence Extensions to PDIF
  • RFC 4481 - Timed Presence Extensions to PDIF
  • RFC 4482 - Contact Information for the Presence Information Data Format
  • RFC 4489 - Location Types Registry
  • RFC 4975 - Message Session Relay Protocol (MSRP)
  • RFC 4976 - Relay Extensions for the Message Sessions Relay Protocol (MSRP)

Instant Messaging Links