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cross domain presence

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eelco
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Joined: 2005-09-28
Points: 0

Hi,

I am trying to get the presence server to work in a cross domain environment. What I see in traces in that, when the presence server gets a subscribe message for a user A on the presence of user B, and user B is registered on the presence server the presence server sends out a notify to inform A of the presence status of B.

When B is not registered on the presence server the notify is not send, or an empty is send. I am not sure.

But what if B is in another domain? Should the presence server in A's domain subscribe to the presence of B at the presence server in B's domain? Or should A subscribe directly to the presence server in B's domain?

At this moment I see the IMS core (which I am using in front of the presence server) routing the subscribtion to the presence of B routed towards the presence server (based upon the IFC) but nothing happens because B is never registered at the presence server.

Should this subscription be routed further by the presence server? Is this something that can be configured?

Any ideas would be greatly appreciated!

Regards,
Eelco

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eduardomartins
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Joined: 2005-10-10
Points: 0

I need to confirm this in specs, but I think routing is a task of CSCFs, which would mean that the SUBSCRIBE pointing to user B should go to the network (and presence server) where user B is registred, etc.