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Samsung Galaxy A3 (2016)
Android 5.1.1
1 Find "Voicemail number"
Press Phone.
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Press MORE.
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Press Settings.
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Press Voicemail settings.
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Press Voicemail number.
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2 Save voicemail number
Key in 707 and press OK.
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707
3 Return to the home screen
Press the Home key to return to the home screen.
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