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  1. WiFi Calling lets you make calls over a WiFi connection – whether you're at home or on the go. Meanwhile, O2 4G Calling uses our 4G network for much clearer calls. You'll move seamlessly between WiFi and 4G network coverage to continue your call if you're using WiFi or 4G Calling.

  2. With O2, WiFi Calling means you can make calls when you don't have signal. Meanwhile, 4G Calling offers better indoor coverage and clearer calls using our 4G network. But how do you know if your device is supported? What do you need to do to enable WiFi or 4G Calling? And where can you use it? Our guide has the answers. What is WiFi and 4G Calling?

  3. Oct 18, 2024 · First, you'll need to add Wifi and 4G Calling to your account. It's quick and easy to do too. For personal customers, please sign into My O2 and go to Device Details. From there, tap Wifi and 4G Calling – this is where you'll be able to add these features to your account.

  4. Mar 29, 2017 · O2 - Wifi and 4G Calling. The launch of Wifi Calling gives our customers the option of making and receiving calls over Wi-Fi even if they can’t connect to the mobile network, whilst...

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  5. Wifi Calling (also called Voice over Wifi or VoWifi), allows you to make calls, receive calls and send and receive text messages* even if you can’t connect to the mobile network. When connected to wifi, you can just dial the number you want to call, or send a text message like normal.

  6. Apr 5, 2017 · O2 has just launched two new services that will completely modernize voice calls. These services are Wi-Fi Calling and 4G Calling, and they’re available at no extra cost. Wi-Fi Calling is pretty self-explanatory, in that it lets you make and receive calls over Wi-Fi. If you’re an O2 customer you might rightly point out that the company’s ...

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  8. Aug 21, 2019 · WiFi and 4G Calling is not available on O2 devices bought through Carphone Warehouse. There are slight firmware differences between devices sold by CW and O2 and one of these differences is the ability to use WiFi and 4G Calling.

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