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A report from the GSMA Mobile World Congress 2015

A report from the GSMA Mobile World Congress 2015 A report from the GSMA Mobile World Congress 2015 OPTIMUS SEARCH 04 MARCH 2015 The GSMA Mobile World Congress 2015, the world’s largest GSM conference and exhibition is currently underway at the Fira Gran Via Conference Centre, Barcelona, and according to Michael O’Hara, GSMA’s Chief Marketing

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