The signaling-interfaces > interface internal > ip4 > sip-udp > address
and media-interfaces > interface internal > ip4 > rtp > address
Both should be your PUBLIC IP Addresses if not using Kamalio LB
The signaling-interfaces > interface internal > ip4 > sip-udp > address
and media-interfaces > interface internal > ip4 > rtp > address
Both should be your PUBLIC IP Addresses if not using Kamalio LB