How does Apple 8 intercept spam messages and harassing phone calls?

Turn on the information filtering function.

The specific method is: 1, find the setting function on the mobile phone desktop, and then click Enter Settings. 2. Enter the settings page, find the information, and then click Enter. 3. At this time, slide the information setting page to find the unknown sender for filtering, and slide to open the unknown sender for filtering. 4. At this time, you can filter the short messages of strangers.