This is definitely a king's meal. It can be said that the school is for its own interests, regardless of the interests of students. The agreement signed between the school and the operator allows students studying in this school to use only his calling card, broadband and so on. In fact, to put it bluntly, this operator is the person who sends money to the school.

When I was in college, our school could only use mobile phone cards and network cables. When I first reported to the university, the school began to promote mobile phone cards and various preferential activities. I have a Unicom card at home, and roaming is free all over the country. When I get to school, there is no signal. I found that the school blocked other signals and could only use mobile phones. I want to say what this is. That's ridiculous.