attention aware features enabled by default turns phone ringer off after slightly ringing once.
When I bought my iPhone XR from Apple, "attention aware features" enabled by default turns the phone ringer off after slightly ringing once. I had to reset recently and it defaults to the same problem.
I read that this is a glitch but if so, an update should have corrected this but I am at 14.5.1 and have had many updates without fixing this issue. If one is not aware of this and in a noisy area they won't know someone had called at the time. My wife's identical phone has the same issue.
I would think the default should be a normal ring and attention aware features an option when necessary.
iPhone XR, iOS 14