This ended up being it. I had accidentally left the rewrite_contact flag
on. Disabling this and setting the use_path=true flag on the AOR in
asterisk fixed the issue. I had already enabled the path module in my
kamailio.
Thanks very much for your help!
On 2/17/25 9:48 AM, Alex Balashov via sr-users wrote:
Hi,
It sounds like Asterisk is giving registrations relayed through your Kamailio
the NAT traversal treatment, which you should turn off.
Second, you're going to need the SIP Path mechanism to make this work:
https://datatracker.ietf.org/doc/html/rfc3327
https://kamailio.org/docs/modules/5.8.x/modules/path.html
Cheers,
-- Alex
On Feb 17, 2025, at 8:51 AM, Enzo Damato via sr-users
<[email protected]> wrote:
Hi. I'm working on setting up kamailio as a load balancer for some asterisk
instances. I've build a configuration that is working for the most part, but I
am encountering issues with calls from the asterisk instances to users who's
registrations were processed through the kamailio instance. When these users
register, asterisk saves thier AOR as the address of the kamailio instance, and
then subsequently tires to send invites to kamailio, instead of to the UAC.
Since kamailio just proxied the registration, without actually registering the
user, it doesn't know what to do with the invite, and the call fails. I would
like to configure kamailio to rewrite the sip requests so that all traffic
appears to be coming from the end user, rather than from the kamailio instance,
essentially making the proxy transparent. Is this possible?
Thank you,
Enzo Damato
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