iPhone 16 Pro won't give audio alerts for phone calls or text messages.

If your iPhone 16 Pro isn’t giving you sound alerts for calls or texts after the latest update, try checking your Focus settings (like Do Not Disturb), make sure the volume is up, and that the mute switch isn’t on.

Sometimes after an update, settings can shift a bit. A quick restart can help too. If all else fails, it might be worth resetting your notification settings or checking with Apple Support just in case it’s a bug.

Take a look at this user tip:

Why doesn’t my phone ring? - Apple Community