Personal Home Support Centre Device Guides Apple iPhone X Calls, contacts & calendar I can't make voice calls

Apple iPhone X

iOS 11.1
Back to section Calls, contacts & calendar

I can't make voice calls

Your phone is overloaded for unknown reasons
The SIM is faulty
There's an error at the receiving end
The selected network is out of range

Select network

Press Settings.
Press Carrier.
Press the indicator next to
If you turn off the function, press the required network.
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
  • 1
    Find "Carrier"
    • Press Settings.
    • Press Carrier.
  • 2
    Select network
    • Press the indicator next to "Automatic" to turn automatic network selection on or off.
    • If you turn off the function, press the required network.
  • 3
    Return to the home screen
    • Slide your finger upwards starting from the bottom of the screen to return to the home screen.

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Roaming isn't activated on your service
There's no credit on your prepaid phone
Your number is no longer in service
Flight mode is turned on
Not adequate network coverage
There is a temporary network problem