Why do people send me text messages on their mobile phones, and it often takes me an hour to receive them? I'm bored to death!

Generally speaking, there are three possibilities. First, the problem of network congestion. Generally, during the peak period, such as the Spring Festival, when the number of short messages is large, the channel will be blocked and the short messages will be delayed. The second is the problem of your mobile phone or the card on your mobile phone. Some mobile phones will have this problem. You can try another one. Of course, you don't have to worry about the congestion of the school exam SMS channel. It should be your mobile phone or card. If it happens frequently, you should find another mobile phone to change your card, or call customer service to ask them to handle your card. In this case, most mobile phones have problems. Third, your school used mobile phone signal shielding equipment during the exam. Of course, the school can't receive text messages within a certain range.