As i setup ivoz standalone with ISO and setup everything and tested call with softphone are all working fine. But trying to test it with websocket using sipml5 but getting error on kamailio as mentioned below.
[core/msg_translator.c:2786]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found
[core/msg_translator.c:2002]: build_req_buf_from_sip_req(): could not create Via header
[core/forward.c:550]: forward_request(): building failed
sl [sl_funcs.c:362]: sl_reply_error(): stateless error reply used: I'm terribly sorry, server error occurred (1/SL)
Assuming SIP Message not delivered to UA properly and keep refreshing every 10 sec.
And SIP Invite:
![image](https://user-images.githubusercontent.com/6180104/159065251-7e2a0610-003c-4777-8d8e-631d4fc1854a.png)
---
- IvozProvider version: 2.20.0
- Related sections:
- [x] SIP & Telephony
- [ ] vPBX Functionalities
- [ ] Billing & Invoicing
- [ ] Web Interface
- [ ] API
- [ ] Other
### Troubleshooting
### Additional Information
Tested with doubango SIPml5 call UI(https://www.doubango.org/sipml5/call.htm?svn=252)
Websocket URL : wss://192.168.2.74:10081
Proxy URL: udp://192.168.2.74:5060
Hello, may I ask how this issue was resolved? I am currently facing the same issue. Could you please help me? Thank you very much. I am using Kamailio 5.7 and rtpengine 11.1
Description
As i setup ivoz standalone with ISO and setup everything and tested call with softphone are all working fine. But trying to test it with websocket using sipml5 but getting error on kamailio as mentioned below.