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. […]

OsmocomBB: open source GSM software

Osmocom stands for Open Source MObile COMmunications. The crew developing the OsmocomBB (baseband) software project presented the above talk at the DeepSec conference last November in Vienna, Austria. As they describe their efforts: OsmocomBB is an Free Software / Open Source GSM Baseband software implementation. It intends to completely replace the need for a proprietary […]