This problem started yesterday. When I get a call on my Iphone 6s, and the number is not in my contact list, the Caller ID displays "Unknown Name" and will not display the phone number. I can view the number only when I look at my call log after the phone stops ringing and it has gone to voicemail. This is incredibly annoying because I'd rather see the phone number to determine if it's a spam/auto dialer, which it usually is or if it's someone from my area. Prior to yesterday my phone would display the phone number. How do I get this to revert back? There does not appear to be a setting for it, and I have not modified any settings myself.