Re: SIP Trunk registration In Kamailio

fashionylem--- via sr-users <[email protected]>
Newsgroups gmane.comp.voip.ser
Message-ID <[email protected]> 
I ran into the same issue with dropped ACKs, and it turned out the https://telxi.com was expecting the Contact header to stay the same across all INVITE and re-INVITE messages. Once I set "rewrite_contact" to 0 and kept the Contact consistent, the calls stayed stable. If your setup sends different Contact headers, the voip provider could be rejecting those ACKs silently.
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