Hello! Can someone explain me how i can correctly check if 2 UA's are behind same NAT ? for example: A and B UA's have private 192.168.1.1 and 192.168.1.2, SER have a public ip A calling B For A all is clear for me - SRCIP have an A external ip and i can use it But i dont see any B external ip, RURI have a private ip part (192.168.1.2) Pls show me the way!