wifi wireless Internet access SMS authentication is generally used in commercial scenarios and internal business scenarios, in shopping malls and supermarkets, restaurants, hotels, cinemas and other commercial establishments can be seen, and visitors to the business visit to connect wifi part of the enterprise also realize the wireless Internet authentication function, the form of the text message is generally relatively simple, Ningdun's wifi authentication system can be done in addition to authentication, but also can be For different user roles to set up different access rights, and users through the authentication of the cell phone number will also be automatically stored in the wifi authentication background, to facilitate the analysis of the enterprise and the secondary marketing;