I have an existing Kamailio installation that is handling registrations and NAT traversal for clients.

There is one particular build of softphone that sends us a received=X.X.X.X param in its REGISTER message and it seems that the current Kamailio's config in place always uses that address to store the AOR.

It happens to be that the client appears to be misbehaving and sending an outdated IP address on that field.

My question is where in the NAT traversal functions do I have control over using this param or not.

TIA