iphone wont ring xr

It was a new setting that people have been asking for to help keep spam phone calls and the link from bothering us. Unfortunately, it came from a newer update and was turned on by default. Once you have turned it off, it should remain off. It is was on, there is no doubt that it was your problem.

Are these calls that you are missing from people that are not in your Contacts? If so, go to Settings>Phone>Silence Unknown Callers and turn that off.