How to show caller image on iOS native ui call by using callkit framework

Question

In my iOS app, I am using CallKit and PushKit for VOIP Call. By using CallKit, I am able to show native call ui and everything fine but I need show native call UI with caller image. How to do this?

Image1 without caller image at receiver side "my app currently behave like this"

Image2 with caller image at receiver side "I want like this in my app"

Answer 1

Apple's CallKit is a framework introduced with iOS 10. It gives users the ability to handle VoIP calls from third party apps, such as Skype, similar to how they would handle a system phone call.