it works. The campus network can still be used after the campus card is ported to the network. The campus network is set up in the local school, and the network to which the mobile operator belongs is related. As long as you have this campus card, you can freely use the campus network without being affected by the mobile operator's network. Campus card is a multifunctional card designed for schools, which can be used to pay for on-campus services, such as catering, book purchase and campus accommodation.