Okay, this is a tough one.
My iphone has been working normally but now has opted not to make any sounds.
So I don't hear any ringtones if someone calls me so I'm missing calls,
Under settings / sounds I have silent mode set to off,
I have under ring vibrate set to off,
I have Ringtone set to old phone and max volume.
It plays fine when I test it, but if I call it with another phone I never hear anything.
It does show the incoming call text and pickup or ignore buttons.
If I set new text phone to a new sound, I hear it once but never hear it when getting texts.
All options below are set to on.
Any ideas? Airplane mode is set to off, I'm connected to a WIFI here at the office but other than that
no other problems that I can see.