On Thu, 2006-02-23 at 16:30 +0100, Sigrid Thijs wrote:
> Scenario:
> - UAS receives INVITE with a branch parameter containing the magic 
> cookie in the topmost Via header
> - UAS receives 2nd INVITE without a branch parameter in the top Via 
> header, but all the other headers (Request-URI, To tag, From-tag, 
> Call-ID, CSeq) match those if the first INVITE
> 
> Is it possible that the 2nd INVITE is a retransmission of the 1st 
> INVITE? When do two Via headers match? If they're totally equal?

It cannot be a retransmission because the Via branch-parameter is
different.  But it is a "merged INVITE", a copy of the same original
INVITE that reached this agent via two different forking paths.

Dale


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