Thank you for getting back to me. The issue developed over the last 2 months or so. I've had the phone (iPhone 5) much longer than that. I see where you are going with trying to isolate a variable like a particular place or caller. It's random. It can happen at home, or at either office I work in, or on the road. It's happened with several callers, even ones whose calls come through. Sometimes I just get a notification that someone left a message. This happens even if the phone is right next to me and does not ring. I didn't realize the extent until my boss emailed me about not answering calls. Currently, I am in the 62864 zipcode and most often I stay within 30 miles of that.
