O2 Telefonica, Vodafone Germany and Deutsche Telekom took part in this 4G connectivity project German telco O2 Telefonica and Berliner Verkehrsbetriebe (BVG), the German public transport company which manages Berlin’s subway system, announced the launch of a new 4G/LTE mobile network from all German mobile phone providers on all underground routes, O2 Telefonica said in […]

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