Hi,
I've trawled through the mailing list archive to see if this is an existing/old
problem, but can't see anything....
I'm using SIPp v2.0, version 20070426
The problem I've noticed is that the branch value changes when using the
[branch] parameter - sending a CANCEL for an INVITE transaction.
For example:-
<send retrans="500">
<![CDATA[
INVITE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
:
:
]]>
</send>
<recv response="180" rrs="true" rtd="true">
</recv>
<send retrans="500">
<![CDATA[
CANCEL sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
:
:
]]>
</send>
This will result in a branch parameter with a stepped message index.
Is this a known problem?
I can, of course, work around this with [last_Via:] for a single via line, or
egrep'ing the VIA lines from the 180 response, but wondered if this has been
seen by anyone else. My interpretation was that the [branch] parameter would be
unchanged before the 200-ACK for the INVITE had been exchanged???
Thanks in advance for any info/insights.
Regards,
/Simon
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