CallKit does not place the connection to a callee.

Hi everyone!


We have a VoIP app that records calls but it doesn't work now.


The app made calls by opening `tel://` URL and this way has worked before because the system has been opening confirmation dialog on top of the system call UI. But now action sheet used by the system instead of dialog and it isn't opening on top of the system call UI.


So, we try to change the initiation call logic to using CallKit.


First, we tried to follow the instructions of raywenderlich tutorial.

Second, we tried to run the tutorial.

As a result, we have the same problems:

1. system call UI doesn’t show;

2. CallKit can’t place the connection to the called phone.


We will appreciate any helpful information about these problems.