Operators need to be smarter in how they work if they are to thrive in a world where OTT players exist, Deutsche Telekom CEO René Obermann said in his keynote at Congress. Under the theme of “do more with less”, Obermann said a more open culture is needed in which operators cooperate as well as compete with third party companies and OTT. “Cooperation is key. Coopetition is unavoidable, it is necessary,” he said.