Burning Man's open source cell phone system could help save the world

By Julie Bort, Network World |  Mobile & Wireless, burning man, open source

Today I bring you a story that has it all: a solar-powered, low-cost, open source cellular network that's revolutionizing coverage in underprivileged and off-grid spots. It uses VoIP yet works with existing cell phones. It has pedigreed founders. Best of all, it is part of the sex, drugs and art collectively known as Burning Man. Where do you want me to begin?

The Open Source SubnetCell towers that blend vs. those that offend

"We make GSM look like a wireless access point. We make it that simple," describes one of the project's three founders, Glenn Edens.

The technology starts with the "they-said-it-couldn't-be-done" open source software, OpenBTS. OpenBTS is built on Linux and distributed via the AGPLv3 license. When used with a software-defined radio such as the Universal Software Radio Peripheral (USRP), it presents a GSM air interface ("Um") to any standard GSM cell phone, with no modification whatsoever required of the phone. It uses open source Asterisk VoIP software as the PBX to connect calls, though it can be used with other soft switches, too. (More stats in a minute that I promise will blow away your inner network engineer.)

This is the third year its founders have decided to trial-by-fire the system by offering free cell phone service to the 50,000-ish attendees at Burning Man, which begins today in Black Rock City, Nevada. I've posted a few photos of the set-up here. But the project is still new and mostly unheard-of.  The second-generation hardware is in beta and the project's commercial start-up, Range Networks, won't emerge from stealth mode until September (at the DEMO conference).


Originally published on Network World |  Click here to read the original story.
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