The Student Should Be Uses the Mobile or Not

many teacher are against student having mobile phones in schools and some other don't really mind having a mobile phones at school has some advantages and some bad advantages
Some of the advantages are that if you are sick you can call your parents without needing to go to the main office wait for some minutes and after that to call them. Another possibility is that sometimes if students don’t have games because of the bad weather there used to be a line at the main office with students waiting to call their parents to come and get them earlier. Nowadays no one goes to the main office to call his or her parents. Also in “emergencies” students can call for help faster than going to the nearest building to find a telephone and call for help.
Some disadvantages are that students send messages or even call with other students during the lesson and that distracts them from the lesson. Also some times students forget to put their phones in silence or close them and when they get a message an annoying sound in made which can disturb the whole class. Some students use their mobile phones to cheat in tests or bully with messages.
My opinion is that mobile phones should be allowed to be brought to school but only be used in breaks or emergencies. Also if a student is caught using his mobile phone during the lesson he should be seriously punished and an even worse punishment should be given to students caught cheating with mobile phones.