I'm working on a project where I need to be able to identify different cellphones in an area.
Ideally I need a way to identify when specific cellphones enter and exit a range – this could be IMEI or Mac addresses (or any other unique ID).
I know that this is possible with wifi to get the MAC but it depends on the phone being set to autodiscover open networks – is it possible by using some RF device/scanner?
Is it possible to detect cellphone IDs in an enclosed area
cellphoneRF
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Best Answer
See "IMSI catcher": http://en.wikipedia.org/wiki/IMSI-catcher
The legality of this varies, and I believe there are more passive versions available. Certainly there are companies offering this as a service (for use in shopping centres to get customer information, for example).
Building your own may be possible with software-defined-radio and "OpenBTS".