How to set up a blacklist for invisible interception on Huawei mobile phones

The mobile phone sets a blacklist in the "Interception Rules" for invisible interception.

On Huawei mobile phones, after opening the dial-up application, click the settings icon at the top or upper right corner and select "Harassment Blocking". Next, click on "Blocking Rules", then select "Blacklist" and click "Add" to enter the numbers you wish to block.

If you want the intercepted calls and text messages not to be recorded by the system, you can turn on the "incognito mode", find the incognito mode in the harassment interception settings and turn it on. After this setting, all intercepted calls and text messages will not be displayed in your phone records and text message applications.