Just think, if your iPhone stops ringing normally, you will miss a great many phone calls. There is no denying that iPhone not ringing is a real hassle even if you can see the missed calls on the iPhone screen in hindsight. Now that the issue has happened, to get upset won't help. All you need to consider about is what you should do to correct the situation. In order to help you get this problem worked, the following summarizes several methods proven to be efficient by those who have experienced the same trouble as you.