Randall L. Stephenson, chairman and chief executive officer of AT&T, discusses the role of mobile technology as a driving force of productivity and business investment. Stephenson also discusses AT&T's acquisition of T-Mobile.
Bio
Chrystia Freeland
Chrystia Freeland is the Global Editor-at-Large of Reuters news since March 1, 2010, having formerly been the United States managing editor at the Financial Times, based in New York City.
Randall L. Stephenson
Randall L. Stephenson is chairman of the board, chief executive officer and president of AT&T Inc. He was appointed to the position in 2007.
Wireless telephone that permits telecommunication within a defined area that may include hundreds of square miles, using radio waves in the 800900 megahertz (MHz) band. To implement a cell-phone system, a geographic area is broken into smaller areas, or cells, usually mapped as uniform hexagrams but in fact overlapping and irregularly shaped. Each cell is equipped with a low-powered radio transmitter and receiver that permit propagation of signals among cell-phone users.
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