I just wonder if I can use CallKit APIs on iPad.
My voice call app worked great on iPhone with CallKit but on iPad, the incoming call screen is not displayed.
I used CallKit to display the incoming call, should I use a different approach on iPad?
Yes, CallKit works universally on iPhones and iPads as well.
Here is how the incoming call notifier screen looks (using the Ray Wenderlich "Hotline" test app as an example):