[SIPForum-discussion] Difference between UPDATE and Re-INVITE

[narasimham.settipalli at wipro.com]

Hi,
 
The other major difference is SIP dialog state doesn't change for UPDATE
and it only refreshes the target. Re-invite is sent only after session
establishment. There are some differences mentioned in the RFC3311 as
how to handle UPDATE prior to session establishment or after session
establishment.
 
Rgds,
Narasimham.

________________________________

From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of SIP SIP
Sent: Tuesday, September 29, 2009 10:45 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Difference between UPDATE and Re-INVITE


Hi All,
 
Hope all of you are doing fine.
 
Here I am with a age old query.
 
Difference between UPDATE and Re-INVITE.
 
One basic difference is-----
 
Re-INVITE cant be sent before session is established.But UPDATE can be
sent always.
 
Is there any other major difference?????
 
Thanks
 
 
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