Joke Collection Website - Public benefit messages - How is the Apple 7P Apple phone set to only receive the information in the phone address book?

How is the Apple 7P Apple phone set to only receive the information in the phone address book?

You can open do not disturb mode in the setting interface and set the allowed contacts. Please refer to the following for specific operations.

Tools/materials: IPhone7plus mobile phone.

1, click Settings.

2. Click Do Not Disturb mode.

3. Click to turn on the Do Not Disturb mode switch.

4. Click Allow the following calls.

5. Finally, just select all the contacts.