For information on Apple Watch Series 3 with cellular, see the Apple Watch (Cellular) tab.
NumberSync for Compatible Apple Devices: Available for voice calls only. Requires iPhone 6, 6 Plus or newer model running iOS 9.3 or later on AT&T postpaid wireless account & with AT&T Wi-Fi Calling enabled. For Wi-Fi Calling set-up & restrictions, visit att.com/wificalling. Device Limit: Sync up to 5 devices. Voice Charges: Calls to international numbers using NumberSync are subject to international rates consistent with smartphone’s rate plan or international package. See [here] for information on pay-per-use rates and available packages for international calls from the U.S. and for roaming when traveling abroad. Data Charges: When secondary device is not connected to Wi-Fi, calls sent/received using NumberSync count as data, & data usage rates will apply—this includes standard data rates in the US, Puerto Rico and USVI and international roaming data rates when traveling abroad. 911 Calls. If you cannot be located using location information obtained from your device, 911 calls will be routed based on the address you provide in the NumberSync settings of your device. 911 calls are not supported outside the US, Puerto Rico, or USVI. 911 Calling with TTY & Real-Time Text : Due to technical limitations, NumberSync cannot be used with TTY devices and cannot support 911 calls over TTY devices. Persons with communications disabilities can use Real-Time Text (www.att.com/RTT) as an alternative. 911 services can be reached by either: (1) calling 911 using Real-Time Text, or (2) calling 911 directly using a TTY over the cellular network or from a landline telephone, or (3) sending a text message to 911 directly (in areas where text-to-911 is available) from a wireless device, or (4) using relay services to place a TTY or captioned telephone service (CTS) call from a wireless phone over the cellular network or from a landline telephone, or (5) using relay services to place a IP Relay or IP CTS call over a cellular data or other IP network. Additional restrictions: NumberSync cannot be used to initiate calls to 211, 311, 511, or 811. Not compatible with Smart Limits, Ringback Tones, OfficeDirect, or OfficeReach. Real-Time Text is not supported on all secondary devices like wearables and computers. Go to www.att.com/RTT for more information on how to use Real-Time Text. Additional Information: See the FAQ above.
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