[SR-Users] Issue in ACK in WS <-> sip scenario

Hello, I am using latest stable kamailio version 5.2 . I am getting following error while calling from webrtc client to sip client. Error: Jan 9 07:25:05 client1 /usr/local/sbin/kamailio[15318]: INFO: <script>: ACK rsponse: WebRTC --> WebRTC Jan 9 07:25:05 client1 /usr/local/sbin/kamailio[15318]: WARNING: <core> [core/msg_translator.c:2812]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found Jan 9 07:25:05 client1 /usr/local/sbin/kamailio[15318]: ERROR: <core> [core/msg_translator.c:2003]: build_req_buf_from_sip_req(): could not create Via header Jan 9 07:25:05 client1 /usr/local/sbin/kamailio[15318]: ERROR: <core> [core/forward.c:549]: forward_request(): building failed Jan 9 07:25:05 client1 /usr/local/sbin/kamailio[15318]: ERROR: sl [sl_funcs.c:372]: sl_reply_error(): stateless error reply used: I'm terribly sorry, server error occurred (1/SL) Here it is saying that websocket connection is not found but when i check using netstat connection is in established state. netstat -anp | grep kamailio result : tcp 0 0 XX.XX.XX.XX:3080 0.0.0.0:* LISTEN 15324/kamailio tcp 0 0 XX.XX.XX.XX:3080 0 XX.XX.XX.XX:53632 ESTABLISHED 15298/kamailio 53632 is same port as port mentioned in received field of location table. So what can be the issue ? please provide your feedback on same. -- *Thanks and Regards,* *Ravindrakumar Bhatt* Jr. Software Developer Ecosmob Technologies Ltd Ahmedabad Mo:*+918460692402*