Thanks @DTS Engineer! How do we know the regions are changing? Standard layout events? viewWillLayoutSubviews, layoutSubviews? or for this kind of transition there's something else?

Hi @javyduty! Can you please add a comment – what do you mean by "simply configure the audio before sending the call to CallKit"? Which kind of audio must be configured? Looks like this part is crucial, and would be nice to understand it exactly. Is it background modes for audio, or something else within CallKit?