How does Apple 12 intercept short messages with strange numbers?

1, first open it and click to enter the SMS.

2. After entering the information page, find the message to be processed and click Enter.

3. After entering the page, click the details option in the upper right corner.

4. On the details page, click the small label in the upper right corner.

5. After entering the page, click below to block this calling number.

6. In the small box that pops up below, click the screen contact to successfully operate.