Between Skype, Google Voice, Viber and several smaller players, there are plenty of platform-agnostic services vying to put your voice through their IP (get it?), and now UK carrier O2 is introducing ...

UK mobile phone network O2 is launching a trial of a new VoIP service for customers to use across WiFi networks. O2 Connect will allows smartphone users to use voice and text services from their ...

British carrier O2 has today launched a new VoIP and messaging service called TU Go, which is available to its pay monthly customers with Android and iOS devices. The service allows users to make ...

A new app called Tu Go, developed by Telefonica for O2, may be rough around the ages, but still ranks as one of the most promising pieces of software we’ve seen come from a wireless provider.

There’s no denying that the iPad is far to big to be a telephone, but there are times when it would be nice to make calls on the device. For example, I’ve previously used Skype to make a call on mine ...