29C3 – Further hacks on the Calypso platform
In this presentation from the just concluded 29C3 conference in Hamburg, Germany, speaker Sylvain Munaut explains how to turn a cellphone into a BTS.
The Calypso baseband and its companion chips are used on the Motorola C123 among other and are now well known for being supported by the Osmocom-BB open source GSM baseband implementation. A couple years ago, it was hacked a little further by using it as a raw bits capture device allowing the interception of GSM traffic very cheaply.
This talk will present some further work on that platform, showing that just because a device wasn’t design for a given task doesn’t mean it can’t do it. More specifically how you can hack this phone to act as a GSM basestation and broadcast your own network.
For additional info on hacking the Motorola C123, see the OsmocomBB C123 page.This entry was posted in hacks, RF, talks and tagged 29C3, BTS, Calypso, Motorola C123, OsmocomBB.