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

[sreekant nair]

Not many SIP stack vendors support UPDATE method. 

We were advised by multiple people(including vendors) to just wait till the dialog is confirmed and trigger a RE-INVITE rather than do the complex development involved with supporting UPDATE. 

But you are correct that UPDATE can be sent in Early Dialog while a Re-INVITE cannot. 

Regards
Sreekant




________________________________
From: SIP SIP <yansb43 at gmail.com>
To: discussion at sipforum.org
Sent: Tuesday, September 29, 2009 1:15:08 PM
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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