If you want to allow users to access the website through a mobile phone, you can enable the Forum Mobile Edition in [background] [global] [mobile edition access settings. In the specific settings of Mobile Edition access, you can set the display mode on the user's mobile phone when accessing the site through a mobile browser, such: whether to automatically jump to the mobile phone version when accessing the mobile browser, whether to allow the mobile phone version
If you want the website to be accessible through your mobile phone, you can enable the Forum Mobile Edition in [background] => [global] => [mobile edition access settings.
In the specific settings of Mobile Edition access, you can set the display mode on the user's mobile phone when accessing the site through a mobile browser, such: whether the mobile phone browser automatically jumps to the mobile phone version, whether the mobile phone version is allowed for registration, whether the verification code is enabled in the mobile phone version, the display layout on the mobile phone, and the number of topics on each page.