Airlivo

Should 'Allow Cellular Data Switching' be on?

This iPhone option (Settings > Cellular > Cellular Data > Allow Cellular Data Switching) lets the phone use the other line for data when one has no signal. Abroad, that can make your home line roam and incur charges — so it's usually best to keep it off.

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Should 'Allow Cellular Data Switching' be on? | Airlivo