What I alredy know about my topics

What I know that the cell phone is that upon your arrival it should be turnt off until dissmissal. I know that everybodys not gonna have their phone turnt off because who knows what situation a student might be going through at home and may need his or her cell phone needed on at school. So therefore I think a students phone should be allowed to be on as long as the phone doesent interfere with others or thatt student.