Twilio JS SDK, i want to answer a softphone call i

Question

I created a soft phone that uses the Twilio Javascript tutorial (quickstart), it works ok...my problem is:

i have a system that will receive the call from twilio (browser notification) and i want that the user, answer that call on a new window (pop up), that will show only a mute and a hangup button.

Thats the problem, the Twilio object were created on the parent window and works ok, but i was unable to "take" the call in the new (child) window, because once a redeclare the twilio object on the new window, i dont have a notification of the call (that are still ringing on the parent window).

Someone know how to tell to the javascript on the child window to answer a specific call id?

My code:

  device = new Twilio.Device(tokentwilio, {
    // Set Opus as our preferred codec. Opus generally performs better, requiring less bandwidth and
    // providing better audio quality in restrained network conditions. Opus will be default in 2.0.
    codecPreferences: ['opus', 'pcmu'],
    // Use fake DTMF tones client-side. Real tones are still sent to the other end of the call,
    // but the client-side DTMF tones are fake. This prevents the local mic capturing the DTMF tone
    // a second time and sending the tone twice. This will be default in 2.0.
    fakeLocalDTMF: true,
  });

      device.on('ready',function (device) {
        log('Twilio.Device Ready!');
        document.getElementById('call-controls').style.display = 'block';

      });

  device.on('connect', function (conn) {
      log('Successfully established call!');
      console.log(conn.parameters.CallSid);
    document.getElementById('button-call').style.display = 'none';
    document.getElementById('button-hangup').style.display = 'inline';
  });

  device.on('disconnect', function (conn) {
    console.log(conn);
    document.getElementById('button-call').style.display = 'inline';
    document.getElementById('button-hangup').style.display = 'none';
  });

  device.on('incoming', function (conn) {
      connp = conn;
    log('Incoming connection from ' + conn.parameters.From);

        document.getElementById('btatender').style.display = 'inline';
        console.log("NOVA LIGACAO ****");
        conn.ignore();  //i ignore the call so i can try to answer on the child window
  });