This is not an issue in Kamailio software, but a matter of kamailio configuration. The tracker here is for bugs in the code and requests for new features.
For sorting out troubles with configuration, ask your questions to users mailing list at sr-users@lists.sip-router.org -- you have to join it at:
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users