Phone call get stuck when I click its app - IOS 9.0.1
Hi every body
I have an iPhone 4S. I updated to IOS 9.0.1. Now when I click the phone call app I just can see my favorite contacts but its get stuck and nothing else work. I can exit the app by double clicking the home button. But if I want to make a call I have to restart the iPhone and it will work just for once. Even the phone options in settings doesn't work.Do you have any idea about it?
Best Regards
iPhone 4S, iOS 9.0.1, null