Mobility services

Wi-Fi Calling

Mobility Wi-Fi caling

More access in more places

Talk and text

Use Wi-Fi Calling to talk and text over an active Wi-Fi connection. Wi-Fi Calling lets you talk and text from indoor locations where it’s hard even for a strong cellular signal to reach. Wi-Fi Calling can be used in the domestic coverage area, and from most international countries. TTY limitations for 911 calls.

A new way to keep the conversation going

A new way to keep the conversation going

  • Wi-Fi Calling is easy to set up and use. Once enabled, Wi-Fi Calling works automatically.
  • Domestic coverage area (U.S., Puerto Rico, and U.S. Virgin Islands): connects when wireless network coverage is weak or unavailable.
  • Outside of the domestic coverage area: connects anytime you connect to a Wi-Fi network.*
  • It works with your AT&T mobile number and compatible device—no new number or app required.

*Use of Wi-Fi Calling may be restricted in some countries

How it works

Calling and texting with Wi-Fi Calling

Wi-Fi calling is available on select devices. Once you set up Wi-Fi Calling on your phone, you’ll be able to enjoy the benefits. Just follow the steps in your phone’s settings to get started. Wi-Fi Calling billing is based on the number being called or messaged and is the same no matter where the Wi-Fi network connection is made.

Calling

Calling

  • You can make calls to domestic numbers and receive calls with no additional charge and no impact on voice call airtime usage.
  • The rates associated with your calling plan or international long-distance package on your account apply to calls made to international numbers.
  • Your calls to premium numbers such as 411 will be billed at standard premium rates.

Texting

Text messages you send or receive with Wi-Fi Calling count the same as regular text messages. You will be charged according to your current rate plan.

Texting

Compatibility

Devices that support Wi-Fi calling

Devices that support Wi-Fi Calling

We’re proud to offer Wi-Fi calling on select compatible devices. To see the full list of compatible devices, go to att.com/wificalling.

FAQ

FAQ about Wi-Fi Calling

Wi-Fi calling lets you talk and text over an active Wi-Fi connection. It works in locations where it’s hard even for a strong cellular signal to reach. Wi-Fi calling can be used in the domestic coverage area (U.S., Puerto Rico, and U.S. Virgin Islands) and from most international countries.

You can turn Wi-Fi Calling on or off in your phone’s settings. With Wi-Fi Calling, you can call, text, and use visual voicemail as you do on the cellular network. While in the U.S., Wi-Fi Calling is used when a cellular signal is weak or unavailable. While traveling in many countries outside the U.S., your phone will automatically use the Wi-Fi network instead of a mobile network when both are available. (Wi-Fi calling is restricted in some countries.)

Yes, you can use Wi-Fi calling to make and receive calls and texts (SMS/MMS) as you do on the cellular network, even if the people on the other end aren’t using Wi-Fi Calling.

  1. You need a smartphone that supports Wi-Fi calling and a postpaid wireless account that is set up for AT&T HD Voice.
  2. You need to set up Wi-Fi Calling on your phone.
    For iPhone: go to the phone settings menu on your device and turn on Wi-Fi calling.
    For Android: go to call settings, quick settings, or connections settings on your device and turn on Wi-Fi Calling.
  3. During setup, you’ll need to provide an address for 911 emergency call routing. You don’t need any additional software or apps.
  4. Once Wi-Fi Calling is enabled on your device, your phone will need to connect to an available Wi-Fi network. Remember, Wi-Fi Calling is used automatically if your cellular signal is weak or unavailable or if you are traveling outside the domestic coverage area and connected to a Wi-Fi network.

Wi-Fi Calling can be used with just about any Wi-Fi Internet connection. To work, Wi-Fi Calling must be on and you must be connected to a Wi-Fi Internet network. Some Wi-Fi networks block Wi-Fi calling.

  • Within the domestic coverage area: use Wi-Fi Calling in places like basements or rooms without windows where it may be difficult for a cellular signal to reach.
  • Outside the domestic coverage area: use Wi-Fi Calling when you are connected to Wi-Fi even if a cellular signal is available. Wi-Fi calling is restricted and will be unavailable in certain countries. If you are in a country where it is unavailable, Wi-Fi calling should be turned off.

Wi-Fi calling is restricted in the following countries: China, Saudi Arabia, India, Turkey, Israel, United Arab Emirates, Vietnam, Pakistan, Cuba, Iran, North Korea, Sudan, and Syria.

911 services need your address to help first responders locate you when using Wi-Fi calling. The address must be located in the domestic coverage area and cannot be a P.O. Box. The address can be updated in the settings menu at any time. When you place a 911 call, the call will go over the cellular network when possible. If no cellular network is available, device location data from nearby Wi-Fi networks will be used to help locate you. If that data isn’t available, the address you provide will be used. We recommend that you update the address of your current location whenever you use Wi-Fi calling.

No. The 911 emergency number is unique to the domestic coverage area. Calls to 911 are only supported within the domestic coverage area. You cannot use Wi-Fi Calling to reach emergency services while traveling outside the domestic coverage area. Emergency calls must be made over a mobile network using the correct number for the country you are in. Before you leave, you should learn the number for emergency services in the countries you will visit.

No. Wi-Fi Calling will not support calls over TTY devices, including 911 calls. To reach 911 service, persons with communications disabilities may do one of these:

  • Call 911 directly using a TTY from a wireless phone over the cellular network or from a landline telephone.
  • Send a text message to 911 directly (in areas where text-to-911 is available) from a wireless device.
  • Use 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.
  • Use relay services to place an IP Relay or IP CTS call over a cellular data or other IP network.

Calls to international numbers are charged based on the following: (1) If you have an international long-distance package and you call a country in that rate plan, those rates will apply. (2) If your domestic voice plan has a reduced international calling rate and you call a country covered by your plan, those rates will apply. (3) Otherwise, you will pay the pay-per-use rates for international long distance. A call to a number in England will be charged at the same rate under your plan no matter where the Wi-Fi network is. It does not matter if the Wi-Fi network is in the U.S., in England, or in some other country.

For iPhone: the word “AT&T Wi-Fi” will appear next to the standard Wi-Fi icon in the status bar.
For Android: A plus (+) sign will appear next to the standard Wi-Fi icon in the status bar. You will also see a Wi-Fi icon on the start and end call buttons as well as on the active call status indicator.

If you are using Wi-Fi calling in the domestic coverage area and HD voice coverage is available, your call will switch to cellular and continue without a break when your Wi-Fi connection is lost. This does not apply to 911 calls. If your Wi-Fi connection is lost, your call will drop in these cases:

  • You are not in HD voice coverage (for example, you are in 3G or 4G coverage).
  • Your device is in airplane mode.
  • You are making a 911 call.
  • You are traveling outside the domestic coverage area.

With the exception of premium numbers, calls you make to domestic numbers are included in your smartphone rate plan. Calls to 411 and other premium numbers are charged standard premium rates. Calls to international numbers are charged based on the following:

  • If you have an international long-distance package and you call a country in that rate plan, those rates will apply.
  • If your domestic voice plan has a reduced international calling rate and you call a country covered by your plan, those rates will apply.
  • Otherwise, you will pay the pay-per-use rates for international long distance.

If you use Wi-Fi Calling to send or receive messages, you’ll be charged based on your current rate plan, current pay-per-use texting rates, or your international texting package. These messages will also count against any usage limits.

Not all devices have this setting. If yours does, select “always” to ensure Wi-Fi calls can be received if your device is in sleep mode.

Yes, but you can’t use both for the same device. The Wi-Fi Calling-capable device must be removed from your MicroCell approved user list. If it is on the list, it will continue to connect to the MicroCell. If no other devices use the MicroCell, you can unplug it. If you used your Wi-Fi calling-capable device to register to the MicroCell, and other devices will continue to use the MicroCell, you must re-register it, using one of those devices.

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