International mobile communications company Vopium has launched a free application on BlackBerry App World, the first mobile VoIP app available in BlackBerry’s new online store.Vopium says its technology takes advantage of 3G, GSM, WiFi and GPRS networks and doesn’t limit users to just using WiFi hotspots. The company automatically re-routes calls via the cheapest available route, offering customers a cost ... (158 words)

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