How to do wifi wireless Internet SMS authentication?

Wifi wireless Internet short message authentication is generally used in commercial scenes and enterprise internal scenes, and can be seen in supermarkets, restaurants, hotels, cinemas and other commercial places. When visitors visit enterprises to connect to wifi, some enterprises also realize the wireless Internet access authentication function. The form of SMS is generally simple, and Ningdun's wifi authentication system can do it. In addition to authentication methods, different access rights can be set for different user roles, and the authenticated mobile phone number of the user will be automatically stored in the wifi authentication background.