[Sprint's upcoming WiMAX services are expected to provide calls and video at "lighting speeds" plus minimize the company's dependence on big phone companies like AT&T and Verizon by reducing "backhaul" expenses.]

By Olga Kharif (BusinessWeek) -- "By using WiMAX over that crucial leg (cell tower to the switching station), Sprint Nextel could cut network operating costs by two-thirds, figures Andrei Jezierski, partner at venture consultancy i2 Partners in New York."

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