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Apple's mobile phone calls don't show the attribution.

Does the subject want to ask "how to set the attribution of Apple mobile phone calls without displaying them"?

1. First, turn on the Apple phone and open the Settings application.

2. Secondly, slide the screen to find the "Telephone" option, click Enter to open the "Caller Display Area" option, select "Chinese mainland" and confirm that the "Display Area Code" option is turned on.

3. Then return to the previous menu and enter the "General" option.

4. Finally, open the Language and Region option and make sure that the Region option is set to China.