albert9 - Hello. If you are facing the problem of poor mobile phone coverage at your university, I recommend that you consider UCtel's solution to this problem. How their mobile phone signal booster for university works https://www.uctel.co.uk/signal-boosters/mobile-signal-boosting-services-for-universities , you can find out on the website, as well as immediately find contacts for communication with the manager. After installing the amplifier, we in our educational institution forgot what a bad connection and missed calls are.