OXO EVOLUTION internal Webrtc troubleshhooting

Hi
  I saw the very clear guide released by Baptiste Candelier:
"VoIP calling: Troubleshooting guide [WebRTC Gateway]"
how can I apply it to the OXO evolution with internal webrtc?
the ssh service is closed or inactive.
what other trobleshooting tools I have available,
the web monitor does not allow me to do everything.
Thanks

Paolo