Device Guides
Apple iPhone 12
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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.
Possible cause 5:
The selected network is out of range: Turn on automatic network selection.
List view
1. Find "Network Selection"
Tap Settings.
Tap Mobile Data.
Tap Network Selection.
2. Select network
Tap the indicator next to "Automatic" to turn automatic network selection on or off.
If you turn off the function, tap 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.
Step 1 of 6
Tap Settings.
Step 2 of 6
Tap Mobile Data.
Step 3 of 6
Tap Network Selection.
Step 4 of 6
Tap the indicator next to "Automatic" to turn automatic network selection on or off.
Step 5 of 6
If you turn off the function, tap the required network.
Step 6 of 6
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
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