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Apple iPhone 4S

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I can't make voice calls

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

We found 7 possible causes:

You're abroad and roaming isn't included in your rate plan
You've turned on manual network selection and are out of range of the selected network
Flight mode is turned on
No credit on your prepaid phone card
There may be a temporary network problem
There's an error at the receiving end
Poor or no network coverage

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