Hi, we are testing connection for SIP using your WebCallServer. But when we are recieiving call there is message for softphone "Unknown Error" and in browser console "errorStatusEvent INTERNAL_SIP_ERROR". Can you explain this problem please?
Make sure you have correct ip and ip_local settings in the /usr/local/FlashphonerWebCallServer/flashphoner.properties config
ip_local must be equal to your network interface IP
And please zip and send us server logs and conf to firstname.lastname@example.org
We will check