Hi,

I sometimes get the following errors:

kamailio[16098]: ERROR: <core> [resolve.c:1693]: sip_hostport2su(): could not resolve hostname: "mycompany.com"

kamailio[16098]: ERROR: tm [ut.h:319]: uri2dst2(): failed to resolve "mycompany.com"

mycompany.com cannot be resolved using DNS (there is no corresponding DNS entry). I use this as a logical domain and I don't expect Kamailio to resolve it. Also, I set use_domain (usrloc module) to 0 so only the RURI username is used when searching locations.

The flow is as follows:

-the proxy receives the INVITE with sip:<user>@myloadbalancerip:5060 which then forwards the INVITE to a proxy

-the proxy looks for <user> internally and finds that this user has multiple subscribers (endpoints)

-for each subscriber, a branch is appended using append_branch (or the RURI is replaced for the first subscriber) – the new RURI for each branch is sip:<subscriber>@mycompany.com

-finally, lookup_branches is called to look for locations for every subscriber

lookup_branches only uses the subscriber (RURI username) for searching locations since use_domain is set to 0.

However, I sometimes get the errors I mentioned.

Any idea why Kamailio sometimes tries to resolve the domain name?

Thanks,

Mickael