[Kamailio-Users] incorrect tag in ACK message

Klaus Darilion klaus.mailinglists at pernau.at
Tue Nov 18 09:44:10 CET 2008



Alex Balashov schrieb:
> Klaus Darilion wrote:
> 
>> A dirty hack (but very well working) is to use a regular expression in 
>> reply route and remove the to-tag from all 1xx responses - so the 
>> softswitch can learn the tag only with the 200 ok.
> 
> Won't that cause the provisional response to not be matched to the right 
> transaction?

No. This is fine. A response need not to have the totag (for 
compatibility with the old SIP RFC) and actually transaction matching is 
based on branch id in Via header, dialog matching is based on 
callid+fromatg+totag

klaus




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