With NumberSync, you can use your smartphone number to make and receive calls on your tablet. Use the same number your friends, family, and colleagues already know. NumberSync even works if your smartphone isn’t with you, nearby, or powered on.
*Data rates may apply. Texting requires use of the AT&T Messages app.
To use NumberSyncSM for tablets, you need an AT&T HD Voice enabled smartphone. Visit att.com/hdvoice for more information and a list of devices that support AT&T HD Voice.
To use video calling on your tablet, you need a smartphone that supports AT&T Video Call.
Select Shop now to see if your tablet supports NumberSync or to purchase a compatible tablet.
There is no additional cost for using NumberSync.
There are no voice airtime use charges if you use NumberSync to make calls to or from the U.S., Puerto Rico, or the U.S. Virgin Islands. For international calls, international long distance rates apply based on your smartphone’s rate plan or International Long Distance package.
You also will be billed standard data charges under your tablet’s plan if you use NumberSync over the AT&T mobile broadband network. This includes standard rates in the U.S., Puerto Rico, and the U.S. Virgin Islands. It also includes international roaming data rates when traveling abroad.
Yes, if you are connected to the Internet. Calls made from outside the United States are charged as follows.
• Calls from Internet-enabled Wi-Fi hotspots
o Calls are billed the same as for a domestic Wi-Fi hotspot
• Calls from the cellular data network of your roaming partner
o These calls will be subject to international data roaming charges. Actual charges will be based on your tablet’s data rate plan.
• Wi-Fi calls made to U.S. numbers
o These are billed the same as domestic calls no matter what country you are calling from.
• Wi-Fi calls made to non-U.S. numbers
o Charges for these calls are based on your smartphone’s rate plan or international long distance package.
You can sync up to five compatible devices with NumberSync.
Yes, if all of your devices have NumberSync turned on, all your devices will ring. You can manually turn NumberSync off for each device by following the instructions in the support article about NumberSync for Android tablets.
No. NumberSync will not support calls over TTY devices, including 911 calls. To reach 911 service, persons with communications disabilities can use Real-Time Text (www.att.com/RTT) as an alternative to TTY. 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. Real-Time Text is not supported on all secondary devices like some wearables and PCs.
Real-Time Text (RTT), is a feature that enables a conversation of text and voice for persons with disabilities who wish to make every day and emergency calls like 911. With RTT, you start the text conversation like a voice call but unlike instant messaging and SMS, both persons engaged in the conversation see each text character appear on their device as they are sent. Get more information on how to use Real-Time Text at att.com/RTT.
NumberSync for Compatible Android Tablets: Voice calling requires smartphone on AT&T postpaid wireless account & set up for HD voice. Video Calls: Must have video call capable smartphone to make/receive video calls on tablet using NumberSync. Device Limit: Sync up to 5 tablets. Voice Charges: Calls to international numbers using NumberSync are subject to international rates consistent with smartphone’s rate plan or international package. See https://www.att.com/offers/international.html 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 tablet is not connected to Wi-Fi, voice & video 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 tablet, 911 calls will be routed based on the address you provide in the NumberSync settings of your tablet. 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 (5using 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, Unified Messaging, OfficeDirect, or OfficeReach. Additional Information: See FAQ elsewhere on this page.
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