Why is there no interception of harassing phone calls and text messages on mate30?

Step one: Open your Huawei mate30 phone and find the phone logo on the main interface.

Step 2: Click to enter the interface. The first thing you see is the dialing keyboard. Click Settings in the lower right corner, and a small window will pop up. Display paste, harassment interception, settings and other functions Step 3: Click to enter the "harassment interception" interface, where you can see information, phone calls and other contents.

Step 4: In the newly pop-up settings interface, you can see blocking rules, black and white lists, other settings, etc.

Step 5: In the "Interception Rules" interface, you can see the settings and management of call interception rules, SMS interception rules, etc. There is an option to "block all strangers" in the "Call Blocking Rules".