Where is the interception function of Xiaomi mobile phone?

Open the mobile phone dialing page, and the icon in the upper right corner is shown as follows

The method of setting harassment interception for mobile phones is as follows:

You can wake up your classmates in Xiao Ai, say "harassment interception" to your classmates in Xiao Ai, and then click Enter in the upper right corner to see the functions of SMS interception, call interception, blacklist number and whitelist number.