OVERLAND PARK, Kan., July 15, 2013 /PRNewswire/ -- Sprint (NYSE: S), the long-time leader in offering unlimited wireless services, is launching The Sprint Unlimited GuaranteeSM. The Sprint Unlimited Guarantee guarantees customers unlimited talk (calls to any wireline or mobile...
Source : http://www.prnewswire.com/news-releases/sprint-lau...
Source : http://www.prnewswire.com/news-releases/sprint-lau...