Primary and secondary students using mobile phones will have adverse effects such as puppy love,Internet,travel,etc.,distributed their learning efforts.Rural boarding schools from our point of view,the best students in school do not have cell phones during the parents want to know how children can be done by the class teacher or the "home-school links" information platform,equipped with cell phones do not have to give them; To contact parents of students can through the campus pay phone,which is very convenient.