[Users] Presence information expires at presence server

Anca-Maria Vamanu anca at voice-system.ro
Thu Mar 15 19:06:12 CET 2007


Hello,

In RFC 3903, which deals with Event State Publication, I have not found 
how this cases should be dealt with.


Rajaram Tripathy wrote:

>
> Hi,
>    Below is my scenario,
>
>  User1 is the watcher and User2 is the presentity
>
>   User1 sends SUBSCRIBE message to watch the presence inforamation of 
> User2.
>
>   User2 sends PUBLISH message, User1 gets notification.
>
>   After first PUBLISH User2 does not refreshes its publication.
>
>   Currently On expiry of presence information OpenSer sends NOTIFY 
> with status as "closed" in the first tuple. Is this behaviour is 
> correct ? Do we need to send NOTIFY with status as "closed" for each 
> "tuple" ? What is the correct behaviour ?
>
This action of sending a Notify with status closed was chosen to mark 
that the presence information previosly notified is no longer valid.

> Also when we send PUBLISH with Expire header as "0", OpenSer sends 
> NOTIFY with the XML body as it is in the first PUBLISH. Is it right 
> behaviour ?
> Thanks in advance.
>
> Regards,
> Rajaram
>
>
If you found some cases in which this solutions are not appropriate 
please report.

Best regards,

Anca Vamanu

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