Cellular Technology

Making cell phone companies out of thin air | CNET News.com:

"It seems like anybody with a well-known brand name is going into the cell phone business, and Sprint's wireless network is somewhere in the background.

Mobile virtual network operators, or MVNOs, are companies like Virgin Mobile USA that sell cellular service without actually owning a network to carry the calls. MVNOs resell calling minutes bought from major carriers--or more accurately, a major carrier. Among the major U.S. wireless providers, Sprint practically stands alone in its willingness to open its network to what some would call upstart competitors."

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