Use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.
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LOG IN TO NUMBERSYNC™: With AT&T NumberSyncSM, once you sync devices to your smartphone number, you can make and receive voice or video calls from whatever device you choose. Video calls require an AT&T Video Call-capable smartphone. Your smartphone number will display on the call recipients caller ID. To set up NumberSync, select the Phone app from the home screen.
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