Open source phone service for off-grid areas

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Mobile phones are increasingly viewed as a critical means of improving life for those in the developing world, whether through employment, healthcare or social connections. Such opportunities depend on access to cellular service, however—and that’s where a new Silicon Valley startup comes in. Range Networks is currently developing what it calls “the world’s lowest cost, sustainable, full featured GSM infrastructure providing voice, messaging and data services for a wide range of applications and environments.”