title: Webrtc without websockets
body: <p>I am trying to test sip capabilities of firewalls using webrtc. However I noticed using the servers needed for webrtc (stun turn websockets etc.) will give me a false positive in that it won’t catch nuanced issues with the ALGs. For reference this is being done from a chrome app so I can’t just run a native sip stack in the browser.</p>
  
  <p>My Question: can I leverage webrtc to just send sip(invite, options, register) and not use any other methods that would get around the firewall?</p>