UK MOBILE NETWORK O2 rolled out its own voice over IP service today that allows customers to make calls over WiFi on a number of supported devices using a dedicated app.
URL: http://www.topix.com/com/android/2013/03/o2-launches-voip-service-tu-go?fromrss=1
Enclosure: http://www.topix.com/bigpic/mini-903c400ce5db45cab532c3f72fd9b456
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