Hello Everyone, Can someone kindly answer my query below, i am stuck up badly. regards GS Kumar On Wed, Dec 13, 2017 at 12:47 PM, Seshu Kumar &lt;gskumar12345(a)gmail.com <mailto:gskumar12345@gmail.com>> wrote: 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. From logs I found that ACK is not being sent from P-Server to Client. 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 _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users