UmTRX is Alive (again!)

Craig Reading craig.reading1 at
Sat Mar 23 20:07:38 UTC 2013

Hi Alexander

Thanks for the info re: encryption. If my tests with an iPhone 5 are correct it would seem that GSM networks due to SIM overrides are still very insecure!


On 23 Mar 2013, at 19:46, Alexander Chemeris <alexander.chemeris at> wrote:

> Great blog post! With only one exception - we implemented encryption in the open-source version of OpenBTS and we maintain it in a special branch. It has issues with some phones and thus we haven't merged it into Fairwaves master branch yet.
> Please excuse typos. Written with a touchscreen keyboard.
> --
> Regards,
> Alexander Chemeris
> CEO/Founder Fairwaves LLC
> On Mar 23, 2013 11:28 PM, "Craig Reading" <craig.reading1 at> wrote:
>> After rebuilding everything on a new server with Ubuntu 12.04 my UmTRX test setup now seems to be rock solid.
>> Regards
>> Craig
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