In today’s advanced technology world, most people are using cell phones regularly. Earlier the cell phones were restricted to the affluent class or to businessmen. But now with further improvements many companies have come up with cell phones that have affordable monthly plans.

A U.S. court rejected Sprint Nextel Corp.'s challenge of a Federal Communications Commission decision that it must give up some wireless airwaves by June 26 to reduce interference with public-safety networks.

Sprint must stop using the frequencies as part of a spectrum swap with about 900 public-safety agencies, regardless of whether all the agencies are ready to give Sprint their airwaves by then, the U.S. Court of Appeals in Washington said today.