Hello I need a small guidance on creating a light weight proxy which only forwards the msgs to my sip server and also does supports symmetrical nated clients. The way I have created the configuration is a slight modification of : https://github.com/xlab1/sipfe_kamailio/blob/master/kamailio.cfg Problem is unless the sip clients use STUN media packets are not routed. And sometimes even the signalling does not pass through. Should i not use fix_nated_register and switch to fix _ nated_contact always ? Because in all those cases where signalling does not pass through, I see RTO. My best guess is kamailio trying to communicate with private ip. Anything which I can try that you could suggest from the top of yourmind woyld be muc appreciated. Thanks Rahul Sent from Samsung Mobile _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users