How to get O2 WiFi Calling

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How to get O2 WiFi Calling O2 WiFi works with ‘TU GO’, an application that allows you to text, call and check your voicemail over WiFi, irrelevant of whether or not you have a mobile signal. Not only can you stay connected without reception but you’ll also be able to connect to WiFi when you’re abroad, and call and text at UK rates. TU GO […]