What is the role of mobile phones in student's life?

There have several reasons why the mobile phone is importance to students. Firstly, it is very easy for students to contact with parents. It means that the student can update their own to the parents through the video call or message which is show that they are in good condition. Secondly, the teacher can communicate with parent's student when they have a problem. Thirdly, it can able to develop the students about the world of technology. So the importance of the use of hand phone to students so that students are not left behind in this era of high technology at this time.