flame Compare Deals and save hundreds of pounds Sim Only Deals Phone Deals

Which UK networks offer Wi-Fi Calling?

23rd January 2018

Wi Fi Calling which networks offer it

Along with VoLTE (Voice over LTE), Wi-Fi Calling is set to upgrade the humble phone call. As the name suggests, it lets you make and receive calls over Wi-Fi, as well as sending and receiving texts. That could be handy if you’re somewhere with little or no mobile signal, including the London Underground.

EE, Vodafone, O2 and Three each offer Wi-Fi Calling in some form, as do some MVNOs (Mobile Virtual Network Operators), but some offer more options or make it available to more phones than others.

Read on for a rundown on each network’s approach and note that in all cases Wi-Fi Calling may not work if you haven't bought your phone directly from the network in question. Also note that if a network isn't on this list then it doesn't offer any kind of Wi-Fi Calling at last check.

UK Networks WiFi Calling

Network WiFi Calling Availability
Asda Mobile -
BT Mobile ✔* Check compatibility
EE Check compatibility
Freedom Pop Check compatibility
GiffGaff -
iD Mobile Check compatibility
Lycamobile -
O2 Check compatibility
Plusnet Mobile -
Smarty -
Sky -
Tesco Mobile -
The People's Operator -
Three Check compatibility
Virgin Mobile -
Vodafone Check compatibility
Voxi -

* Requires BT landline

  • BT Mobile

BT Mobile doesn’t have a proper Wi-Fi Calling service, but it does offer a SmartTalk app, which if you have a BT landline allows you to use your landline minutes on your smartphone when calling over Wi-Fi.

So the system requires BT Mobile, a BT landline and a separate app to use. Plus, your number will appear as your landline number when placing calls, which isn’t ideal. Still, it’s better than nothing.

Find out more about SmartTalk here

  • EE Wi-Fi Calling

EE offers true Wi-Fi Calling, which is to say there aren’t any separate apps or accounts involved, instead calls and texts will come through via your standard dialler and SMS apps, they’ll just use Wi-Fi to do so if you’re connected to a Wi-Fi network.

That makes it a seamless experience, which is a big bonus and calls and texts will come out of your normal monthly allowance.

The only downside to EE’s Wi-Fi Calling is that it’s not available on all devices, but it is available on a large and ever growing selection of handsets, including the Samsung Galaxy S8, Huawei P10, iPhone X, iPhone 8, Samsung Galaxy 7, Sony Xperia XZ1 and many more. It also works on phones not bought from EE direct, but the network can't guarantee it'll work with all phones so check the list linked to below.

Find out more about EE Wi-Fi calling here

  • FreedomPop

FreedomPop also offers Wi-Fi Calling. It’s not exactly app-free, but it uses the same app as standard messaging through FreedomPop does, so it’s a fairly seamless experience and it seems to work with all phones that work with the FreedomPop app (which is most of them).

Find more about FreedomPop Wi-Fi calling here

  • iD Mobile

iD Mobile is one of the first MVNOs to offer Wi-Fi Calling and you’re getting true, app-free Wi-Fi Calling with it.

However, it’s only currently available for the iPhone 5S, iPhone SE, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone X and Huawei Mate 10, though iD claims to be working to bring it to more phones.

Find out more about iD Mobile Wi-Fi calling here

  • O2 Wi-Fi Calling

O2 was the last major network to launch a Wi-Fi Calling service, and it’s currently a bit limited, as you can only use it on an iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6S, iPhone 6S Plus, iPhone 6, iPhone 6 Plus, iPhone SE, Samsung Galaxy S8, S8 Plus, Note 8, S7, S7 Edge, J3 2017, Sony Xperia XZ Premium, Xperia XZ1 or Xperia XZ1 Compact.

If you have a supported handset you should get a software update to enable Wi-Fi Calling, after which it will work automatically whenever you’re on a Wi-Fi network - though in some cases you may need to enable it in your device's settings first.

O2 used to also offer an app-driven Wi-Fi Calling service called TU Go, which was an alternative for anyone without a compatible handset, however this has now been discontinued.

Find out more about O2 Wi-Fi calling here

  • Three Wi-Fi Calling

Three also offers true, app-free Wi-Fi Calling. 

On Android it works automatically while those iOS will need to activate Wi-Fi Calling in their phone’s settings screen.  Currently it’s available for all iPhones running iOS 6 or later, Samsung Galaxy S8, S8 Plus, Note 8, S7, S7 Edge, S6, S6 Edge, A3 2016, A5 2017, J3 2017, LG G6 and LG G5. You will need to have purchased your from Three as it needs firmware pre-loaded to support WiFi calling.

If your phone isn’t supported or not bought directly from Three you’re not out of luck, as Three also takes an app-driven approach to Wi-Fi Calling with its inTouch app. While this does require a separate app you don’t need an account or password, just a smartphone on Three.

Minutes and texts will come out of your standard credit, so there are no extra charges either and it works on most Android phones running Android 4.0 or above and most iPhones running iOS 6 or higher.

Find out more about Three Wi-Fi calling here

  • Vodafone Wi-Fi Calling

Vodafone’s Wi-Fi Calling service is similar to EE’s, in that it works seamlessly without the need for a separate app. You simply need to have a compatible handset on a Vodafone Red Extra, Red Entertainment, Red, Red Value or Red+ tariff and then to enable Wi-Fi Calling in the phone’s settings. Once that’s done you’ll be able to call and text as normal, but over Wi-Fi when available.

Vodafone Wi-Fi Calling is available on the iPhone X, iPhone 8, Samsung Galaxy S8, Samsung Galaxy Note 8, Huawei P10 and Sony Xperia XZ Premium among many other devices.

Find out more about Vodafone Wi-Fi calling here

Vodafone also has another trick up its sleeve called Call+, which is an additional service that works in combination with Wi-Fi Calling (or standard calls if you have a mobile data connection). It allows you to mark your call as important, type a subject or reason for the call, add your current location and even add a photo.

So the person you’re calling has far more information available before you even start talking. You can also switch to a video call mid conversation and once the call is done you can access any messages, photos or videos that were shared during the call directly from the call logs. If the person you’re calling doesn’t answer you can also leave a note or voice message for them.

This service requires the Vodafone Call+ app, which is available on both Android and iOS. But once you’ve got the app it too is fairly seamless.

Sign up for our newsletter.