Because of the many causes that demonstrate how to use the phone in the classroom as an unworthy because of inappropriate use could cause annoyance with colleagues and professors who teach may be the sound of the phone.
Because many causes that showed phone use in the classroom. It is not appropriate due to improper phone use may cause a nuisance. With classmates and teachers. May be the sound of a phone or the expression of the phone users.
Because of many shows that using the phone in the classroom is improper, inappropriate, because using the phone may cause annoyance With classmates and the teacher May be the sound of the telephone