Crazy link man.
Anyway, anybody with the right radio hardware
and a little Linux box with OpenBTS and maybe
asterisks (or other software setup depending)
can roll something like this out...
Last i checked it didn’t support 3G but the phones can
be tricked into switching down to 2G unencrypted
if you blast a strong enough signal. Newer phones maybe
more resilient?
I don’t know how much more advanced the commercial
stingrays are over the best roll-your-own...
There are android apps that do IMSI catcher detection,
but they have some issues.