“What is the voltage range on the phone - is this 120V only or 120-240V?”

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• Per the user guide: Telephone base voltage (AC adapter output) 6VDC @ 600mA 5.1VDC @ 1000mA The adapter is 6 volts, it should work with either 120 or 240 volt. I would call AT&T to verify. Their number is: 1 (800) 222-3111

  Answered by MeridianMark 5 years ago

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