O2 UK has switched on WiFi Calling and 4G Calling which also known as VoLTE, making it the last among the four main UK operators to offer both services.
The launch of Wifi Calling gives O2 customers the option of making and receiving calls over Wi-Fi even if they can’t connect to the mobile network, whilst 4G Calling provides customers with clearer calls and better indoor coverage over our fast 4G network.
Both of these work together to provide a seamless, uninterrupted experience and less dropped calls when moving between the two. In 4G Calling areas, they work together, switching automatically and seamlessly between the two without dropping.
From launch, Wifi and 4G Calling will be available to eligible iPhone 7 and 7 Plus customers on any O2 consumer Pay Monthly, SIM only and business tariffs. The Operator plans to add more devices to support these services in the near future.
Wifi Calling uses any available Wi-Fi connection to help you make and receive calls. It’s perfect for when customers don’t have a phone signal but do have a Wi-Fi connection e.g. O2 Wifi, home or office broadband. Although O2's free TU Go app offers O2 customers the ability to make calls over Wi-Fi, Wifi Calling means no app is needed – just dial a number as normal.
4G Calling means customers can make high-definition calls over the O2 4G network. This can bring benefits like better quality voice calls, a faster call set-up, better indoor coverage and longer battery life. It also means customers can make a 4G call and get online using 4G at the same time.
