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Martin Cooper changed the world when he made the first cell phone call 40 years ago. The former Motorola vice president and division manager made the call on the company's DynaTAC phone while standing in front of the New York Hilton on Sixth Avenue . His first call: to the head of research at Bell Labs, a company that also was attempting to build the first cell phone . Cooper's call did more than untether people from their fixed phone lines; it opened the door to true mobility and continues to affect virtually every aspect of our lives. READ MORE FIRST CELLPHONE OF WORLD,OLDEST CELLPHONE IN WORLD MARTIN COOPER WITH HIS WORLD FIRST MOBILE PHONE