Another way to stay connected with O2
No signal? No problem, with Wifi Calling. Wherever you are, if you’re having signal trouble, use wifi to call as normal. And 4G Calling lets you make calls over 4G, for clearer calls.
Move seamlessly between wifi and 4G network coverage, so you can continue your calls without disruption, and check emails at the same time.
Once we’ve set you up and you’ve switched it on in your phone’s settings, you’re good to go. There’s no need to sign up, register or download an app.
Start your call over wifi, and move seamlessly onto our 4G network as you step outside. All you need to do is make sure your device supports Wifi and 4G calling.
There’s no extra charge for Wifi and 4G Calling. Calls are included in your tariff allowance, and out-of-tariff calls are charged at your standard rate.
Wifi and 4G Calling works on most popular business phones. And we’re adding new ones all the time1.
Make and take calls wherever you have a wifi connection. Stay in touch in more places than ever, with more wifi hotspots popping up all the time.
Browse the internet, or use apps, on our fast 4G network, while you’re making a call. So you can be more productive, wherever you are.
1For some Android devices, Wifi and 4G Calling will only work on devices using O2 firmware. Learn more and check if your device is compatible.