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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. 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.

  4. 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.

  5. Mar 29, 2017 · The new service replaces the TU Go app, and means O2 customers with a compatible phone - for now just an iPhone 7 or iPhone 7 Plus - can make and receive calls over Wi-Fi when there's little to...

  6. Aug 27, 2024 · Wi-Fi calling allows calls and texts over Wi-Fi, taking advantage of stronger Wi-Fi signals when cellular connections are weak. Benefits of Wi-Fi calling include improved voice quality, no additional cost, and better service in areas with poor coverage.

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  8. 4 days ago · The difference between Wi-Fi calling and regular phone calls happens behind the scenes. With Wi-Fi calling, the call is routed to a Wi-Fi network instead of your phone service provider’s network.