ios 8/8.1 can't answer phone calls keeps vibrating
I will explain what happends:
My phone recieves a phone call normal or mobile, its starts ringing and vibrating i slide to answer call, but when i do that it keeps vibrating and the ringtone continues repeating. When that happends i listen if the iphone accepted the call but it didnt, i get all the options: hang-up, speaker, dail keys, ect.. if the othere side hangs up the iphone keeps repeating. so i need to force it to shutdown or to restart.. after that the problem is fixed for a short time.
This happen under iphone 6, ios 8, ios 8.0.1, ios 8.0.2, ios 8.1
p.s. tested it with and without sharing my ipad 3 for receving phone calls
iPhone 6, iOS 8.1