App lets users in 2G zones make free voice calls

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Mobile phones are great things, but if there's no cell or data reception they become pretty useless. We've already seen Kan Khajura Tesan enable those in media blackspots to gain access to entertainment through their cell phone, and now nanu is an Android app designed to deliver clear voice calls when only 2G data is available. Popular apps such as Skype, FaceTime and Viber already provide the capability to make voice and video calls over the internet, rather than using up call plans. The problem is that in some countries, the 3G and 4G bandwidth required for these apps to…

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