To remove all binding you may want to put contact='*' and expires = 0. 
This should remove all bindings.

-rakendu

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sharath
Chandra
Sent: Monday, October 25, 2004 9:48 AM
To: [EMAIL PROTECTED]
Subject: [Sip-implementors] Signout in Presence Service

Hi All,

I have 2 queries regarding Presence Server.

1) Is specifying expiration interval to '0' in REGISTER method the only way
to remove all bindings of a UA. For example, in a Presence service i will
sign out from a UA by sending expires=0 in REGISTER method. Is it correct ?

2) If yes, should my UA PUBLISH its sign out state and then send final
REGISTER so that Presence Server can send Notification to all subscribers
about the Signout state. Or my Presence Server should handle REGISTER with
expires=0 and generate a Notification on its own without any PUBLISH.


Please clarify.

Thanks,
Sharath Chandra




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