How to force VideoCall in WebTRC mode using SightCallAPI?

I'm currently working on a SightCall Proof Of Concept for my clients.
In order to give our clients what they need, I will need access to the HTML video element which SightCall uses to show the call. According to the quick-start example (https://github.com/sightcall/one-to-one-js-sample), it says the window will be placed in the blue box if using webRTC.
I am using Chrome but for some reason a window pops out and seems to be using the RTCC driver instead of WebRTC.

How can I force the call in WebRTC mode instead of using the RTCC driver?

Solution

To use WebRTC only, you can add the following property to the options Object before instantiating the Rtcc Object:

options = {
    debugLevel : 1,
    displayName : 'Callee',
    container : 'video-container',
    **mode_parameter: 'webrtc_only'**
},

This will force the use of WebRTC even if the RtccDriver is installed and running.