The premise is thus: GSM phones are everywhere but not necessarily the infrastructure to go with them. This project uses custom hardware to create a GSM femto-cell with OpenBTS and provides two methods for interfacing with other devices. The first leverages on OpenBTS's VoIP capabilities to allow connected phones to send SMS messages to any phone in the world. The second option allows the users to broadcast the message over a long-range, non-GSM band like CB.
In addition to the Hackaday Prize, this project is going to be submitted as our senior design project for University of Florida's ECE program.