Day Three Of Mobile World Congress 2014 [Getty Images]

John Chambers, chairman and chief executive officer of Cisco Systems Inc., speaks during a keynote address on day three of the Mobile World Congress in Barcelona, Spain, on Wednesday, Feb. 26, 2014. Top telecommunication managers will rub shoulders in Barcelona this week at the Mobile World Congress, Monday, Feb. 24 - 27, a traditional venue for showcasing the latest products for dealmaking. Photographer: Angel Navarrete/Bloomberg via Getty Images

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