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. […]