Apple iPhone Xs

iOS 12.0

iOS 18 iOS 17 iOS 16.0 iOS 15.1 iOS 14.0 iOS 13.0 iOS 12.0

I can't make voice calls on my Apple iPhone Xs iOS 12.0

Cause 3 of 3: There's a connection error

If your phone doesn't receive any calls when someone calls you, it may be caused by an unknown connection error.

Step 1 of 2

Restart your phone

Press and hold the Side button.

Step 2 of 2

Restart your phone

Simultaneously, press and hold the Bottom volume key until your phone restarts.

Press and hold the Side button.

Simultaneously, press and hold the Bottom volume key until your phone restarts.

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