OpenBTS

OpenBTS is an open-source software that allows personal devices, like computers, to create their own mobile phone network, similar to a traditional cellular network. By running OpenBTS on a standard computer and using a software-defined radio, individuals can set up a low-cost, private GSM network for calling and texting within a limited area. This technology is useful for rural or remote locations, research, or experiments, enabling communication without relying on commercial cell towers. It empowers users to build flexible, customizable mobile networks using easily available hardware and open software.