Hi All, I am running kamailio 5.2.x on CentOS 7. Call is happening but i am getting the below error continuously in kamailio logs. WARNING: websocket [ws_frame.c:228]: encode_and_send_ws_frame(): TCP/TLS connection get failed Jan 30 17:57:01 localhost /usr/local/sbin/kamailio[22097]: ERROR: websocket [ws_frame.c:765]: ping_pong(): sending keepalive Any clue of why this is happening? Thanks, Arish Haque