Hello Everyone, We are using Kamailio IMS (version 5.0.4). We are using Jitsi for making calls. Our SIP clients are behind NATed network. When clients and P-Server is configured to UDP mode, we are able to make calls sucessfully. When clients and P-Server is configured to TCP mode, call is not getting through. On googling i found that this is known problem. Can anyone kindly clarify whether this problem is resolved? Is there is work around. Am i not setting any parameter properly? Let us know if further information is needed. Kindly some answer, we are newbies... :) Regards GS Kumar