How to block Didi calls?

How to block Didi calls from all strangers and calls from non-contact numbers:

Start the phone system settings. ?

Click to enter "Security and Privacy".

Click to enter "Harassment Interception".

Click the icon in the upper right corner to enter the harassment interception setting page.

Click to enter "Interception Rules".

In the Block all strangers column, turn on the switch at the back to make the phone block all strangers.

There are other methods:

China Mobile

Edit text message "KTFSR" and send it to "10086" to activate free editing text message "QXFSR" and send it to "10086" You can cancel it and the effect will be immediate after activation. ?

China Unicom

Follow "Unicom Call Manager" and bind your mobile phone number to activate anti-harassment.

China Telecom

Follow "E-Surfing Anti-harassment", select "Harassment Interception Settings" and bind your mobile phone number to activate it.