Harald Welte and Dieter Spaar give a talk on their openBSC project (In english - a talk for Chaos computer club [CCC]) <br><h1><font><font size="2">"Running your own GSM network"<br>
<a href="http://media.ccc.de/browse/congress/2008/25c3-3007-en-running_your_own_gsm_network.html" target="_blank"><span style="font-weight: normal;">http://media.ccc.de/browse/congress/2008/25c3-3007-en-running_your_own_gsm_network.html</span></a></font></font></h1>
very interesting.