I have a code based on https://github.com/softsan/callkitsample. Everything works, but when during a call I tap on green phone icon, nothing happens. I would like that window with call details would appear, like it is during regular phone call. Any idea how to do it? I'm quite new to Xamarin. Calls are working (I can accept and make a call). I just would like to avoid writing my own view controller for "call in progress" UI..