Travelling with our AT&T-based iPhone5s
In article , Wes Groleau
wrote:
turn off cellular on the phone and it*can't* use cellular data or
voice.
You can also leave cell on for voice and turn off data.
you can, but it can still roam on voice and cause unexpected charges.
if someone happens to call you and it rings, you could be screwed.
the safest thing to do is turn off cellular completely (airplane mode)
or get a local sim (or just leave the original sim out, if it's gsm).
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