Often, when I receive a phone call on my iphone 4S (version 8.4.1), only the phone number of the contact is displayed, not the name. (I am in the US and my carrier is AT&T) If I go to "Recent Calls", the name of the caller IS displayed, just as it is listed in my contacts. I have searched the internet to try and find a reason / fix for this to no avail. I hope someone here has a solution. Thanks!