Kid suspended for answer fathers phone call during class

There it is. No one kid should be treated any differently than any other regardless of where his dad is. If it were that important, I don’t know of many people who wouldn’t have worked it out IF THEY HAD KNOWN BEFOREHAND that the dad may call at any time.
Sounds to me like a family who is raising the kid to believe everything is owed to them and school rules are just “suggestions”.