Wednesday, June 4, 2008

Subscriptions in UCMA part 3: Presence

This is the most interesting kind of subscription. There are actually 3 kinds of presence subscriptions with different kind of document formats:

  • PIDF(Content-Type: application:pidf+xml)
  • MSRTC(Content-Type: text/xml+mrstc.pidf)
  • Enhanced presence(Content-Type: application/msrtc-event-categories+xml)

Each of these having more functionality/Information. PIDF(Presence Information Document Format) is the easiest to implement using UCMA. Where enhanced presence is actually the way to go. The other 2 are there for backwards compatibility. OCS server supports all 3.

The next two parts will cover how to implement subscriptions using PIDF and Enhanced Presence.

For more information please contact me:

1 comment:

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