Sorry, we don't have example code for that flow in our SDK documentation yet. But as a starting point I attached some example how to use PBX Signal API to do the registration and the code of our softphone app (no secret, as everyone can see it in the browser console anyway).

pbxsignal-test.zip

• Preparations on the PBX
• Create an app object called "testapp" with password "pwd" and check "PbxSignal" to give permission for that API.
• Create a user object "testuser" with a device "testuser" with licenses "Phone" and "Softphone" or enable test mode on the PBX.
• The test.html connects to the app object using websocket and creates a registration for the testuser. Message flow:
• {"api":"PbxSignal","mt":"Register","hw":"testuser"}
  
• {"mt":"RegisterResult","api":"PbxSignal","addr":"192.168.0.125"}
• After that calls can be made on the registration, which I didn't show in the example.
  

phoneapps.zip

• For using WebRTC together with our APIs you need to convert between SDP from WebRTC and our channels structure. The softphone code contains functions to do that in phone_sdp.js.

Hoping this is helpful for starting.

BR

Matthias