Should Cell Phone Use Be Allowed In The Classroom?

Should cell phone use be allowed in the classroom?
Firstly, if used correctly these technologies assist us when we need to find information about historical facts, literature or even math. What is more, very often recordings of our reading tasks help us understand mistakes we make and even find out if the arguments are strong enough.
Secondly, mobile devices hold to keep us to communicate that our parents or teachers in school. For instance, if someone has a family emergency or even if the teacher is late it is very easy to send a text message and let everybody know essential information. If the school has a rigid policy about cell phones at school you will have a lot of inconvenience when you have an emergency.