The magic cookie is an indication of the UA being RFC3261 compliant.
So, if its missing, the UA is not RFC3261 compliant.
I would say you would still accept the call and process the call for backward 
compatibility for RFC2543 compliance.

Somesh S Shanbhag
M G L Bangalore



-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Sudhir Kumar Reddy
Sent: Wed 11/19/2008 5:33 PM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-implementors] query in Magic cookie
 
Hi All,

I would like to know if magic cookie is missing in VIA header. what would be 
the behavior of B2BUA?

Should it process request / discard packet?

Thanks in advance

Sudhir



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