Hi,

I am student and new to the Presence Model und Protocols.

I have in my student project the following scenario:

company A wants to develop a presence service PA. The presence service PA should get the data from the presence server PB of an other Company B over the Internet. The Presence information of PA should be made available in the Company A for different applications.

my question:
can PA poll or subscribe all changed/updated Presence Information from PB regularly. Or it should request the Presence Information of each Presentity individually?

which Presence server can implement the presence service PA.
What should I do if PB uses another Protokoll?

Thank you and Best Regards
Koder

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