I want to get a notification to my this particular iOS app when my system (iPhone) get an incoming call. Or how my app can know there is an incoming call and from which phone number it is. As True Caller App can say when I have an incoming call. I am currently using iOS 10, Xcode 8 and swift 3. Some blogs say it is possible by using callkit framework, but till now I con't find out the solution how exactly it is possible. Can any one help me to find out this solution. If some one can share code it will be more helpful.