Wilfried was Chief Technology Officer at Callax Telecom, and Executive Vice President Operations & Technology at Seven Communications. Wilfried served as Chief Operating Officer at Ecotel Communication.Wilfried Kallenberg is currently
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In the Telecommunications industry, Wilfried Kallenberg has 23,770 colleagues in 1,951 companies located in 172 countries. 10,154 executive movements have been recorded in the last 12 months. Learn more about Telecommunications.
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