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BT Wi-Fi calling

BT Wi-Fi calling

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Roams UK

Roams UK Entry updated on Thursday, February 17, 2022

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BT mobile offers Wi-Fi calling for its customers; however, there are a few things customers must know before they can get the Wi-Fi calling service, such as having the latest update for their smartphone.

What is BT Mobile Wi-Fi Calling?

Wi-Fi calling allows people to make and receive video and voice calls, using a Wi-Fi connection over the regular cell one.

If a customer is on a call using an online app and she or he is in a building with thick walls, this might cause their phone to lose connection or have a weak signal. Nevertheless, this won't happen if they can automatically connect to the building's wi-fi if the building has wi-fi then it'll automatically reconnect.

It is the same for being on a call using wi-fi, the call will automatically switch from Wi-Fi to a 4G network without having to end the call.

What you need to know for Wi-Fi calling

Before getting all excited about Wi-Fi calling, there are some things that members must do in order to get Wi-Fi calling, such as get a phone that is able to access this service.

Wi-Fi calling comes included on most of the most recent devices. Nevertheless, you must make sure that:

  1. You have an HD Voice capable device, able to use Wi-Fi calling.
  2. You have the Wi-Fi calling option activated.

Apple iPhones and Android smartphones are capable of Wi-Fi calling. In order to learn how to activate Wi-Fi calling, follow these three easy steps:

Activate Wi-Fi calling on iPhone (iOS):

  1. Make sure you have the latest software update – Settings > General > Software Update
  2. Settings – Phone Wi-Fi Calling (make sure you turn on the Wi-Fi calling)
  3. Check the top of your iPhone for the BT Wi-Fi Call icon

Activate Wi-Fi calling on Android:

  1. Go to settings on your phone and make sure that you have the latest software
  2. Wi-Fi Calling option > Call Settings menu
  3. Check at the top of the phone for the BT Wi-Fi Call icon

To help you get an idea of what a classifies as a compatible mobile phone, here is a list of the iPhone and Android mobile phones that are compatible:

Apple iPhone:

  • iPhone 5S
  • iPhone 6 & 6s & 6s Plus
  • iPhone 6 Plus
  • iPhone SE
  • iPhone 7
  • iPhone 7 plus
  • iPhone 8
  • iPhone 8 Plus
  • iPhone X
  • iPhone XR
  • iPhone 11
  • iPhone 11 Pro
  • iPhone 12
  • iPhone 12 Pro
  • iPhone 12 Pro Max


  • Samsung Galaxy S9 & S9+
  • Samsung Galaxy Note S10 & S10+
  • Xiaomi Redmi 7A
  • Xiaomi Redmi 7
  • Xiaomi Redmi 7 Pro
  • Xiaomi Redmi Y3
  • Realme X2 Pro
  • Nokia 6.1 Plus
  • Nokia 7 Plus
  • Nokia 7.1
  • Nokia 8.1
  • Nokia 8 Sirocco
  • Nokia 9 PureView

Does Wi-Fi call cost extra?

The best part about Wi-Fi calling is that it is free and customers don't need to download an app because Wi-Fi calling works behind the scenes, just make sure that the smartphone phone is compatible.

The calls made over Wi-Fi don't use any data allowance of your current plan. However, the Wi-Fi network you are using may be applying charges in order to access it.

Nevertheless, you must have in mind that voice calling consumes around 1 MB/minute of data and 1-minute video call can use up to 6 to 8 MB of data (the actual data usage may vary depending on the device).

Wi-Fi calling is a good way to save money on data plans because clients don't have to use any of their data.

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