The task of running a cellular network has usually been reserved for major carriers. But now an open-source project called OpenBTS is proving that almost anyone can cheaply run a network with parts from a home-­supply or auto-supply store. Cell-phone users within such a network can place calls to each other and--if the network is connected to the Internet--to people anywhere in the world.

The project's cofounder, David Burgess, hopes that OpenBTS will mean easier and cheaper access to cellular service in remote parts of the world, including hard-to-reach locations like oil rigs and poor areas without much infrastructure. OpenBTS has already been used for cellular service at the Burning Man festival in the Black Rock Desert of Nevada and on the island of Niue in the South Pacific, among other locations.