Hi I have problem with force_rtp_proxy. Kamailio server have multi network interfaces. I have two PSTN GW-s. And If is something wrong with first one, the call is send to the second via PSTN failover route. When I send call to the first GW I'm calling force_rtp_proxy("oc","10.10.10.1"); But the first GW respond with 404 Not found, so I send INVITE to the second GW with calling force_rtp_proxy("oc","10.10.20.1"); In SDP I see double IP's : o=root 26366 26367 IN IP4 10.10.10.110.10.20.1 s=session c=IN IP4 10.10.10.110.10.20.1 How to resolve that? Thank you Ernest