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Samsung Galaxy J6
Android 8.0
1 Find "Voice call"
Press Phone.
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Press the menu icon.
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Press Settings.
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Press More settings.
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Press Call barring.
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Press Voice call.
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2 Turn call barring on or off
Press the indicator next to the required barring type.
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Key in your barring password and press OK. The default barring password is 0000.
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0000
3 Return to the home screen
Press the Home key to return to the home screen.
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