To receive important calls even when your iPhone is on Silent or Focus mode, you can use the “Emergency Bypass” feature. Go to the contact, tap “Edit,” select “Ringtone,” and enable Emergency Bypass.

Silent phone? Learn why your phone won't vibrate, from simple settings issues to hardware problems. Find out how to fix it ...

Allowing calls to ring in Focus Mode on iPhone is easy: add key contacts as “Allowed People” inside a Focus, and optionally ...