Support WBURFather Of The Cellphone 'Unleashed' World's Callers From Copper WiresPlay03:00Download AudioHansi Lo WangJuly 09, 2012 ShareMartin Cooper holds a Motorola DynaTAC, a 1973 prototype of the first hand-held cellular telephone, in San Francisco in 2003. Cooper made the world's first public call from a cellphone in 1973. (AP)
