Oh look, real phone hacking

[Churchill]

KUATB

http://forums.contractoruk.com/showthread.php?t=91889

[vetran]

Cracking GSM with RTL-SDR for Thirty Dollars

Theoretically, GSM has been broken since 2003, but the limitations of hardware at the time meant cell phone calls and texts were secure from the prying ears of digital eavesdroppers and all but the most secret government agencies. Since then, the costs of hardware have gone down, two terabytes of rainbow tables have been published, and all the techniques and knowledge required to listen in on cell phone calls have been available. The only thing missing was the hardware. Now, with a super low-cost USB TV tuner come software defined radio, [domi] has put together a tutorial for cracking GSM with thirty dollars in hardware.

Plod aren't likely to understand that.