Tobias Engel demonstrates (amongst other things):
* How to find out the phone numbers of nearby cellphones
* How to track the location of a cellphone that you only know the phone number of
* How intercept outgoing calls of nearby cellphones
* How to find out the phone numbers of nearby cellphones
* How to track the location of a cellphone that you only know the phone number of
* How intercept outgoing calls of nearby cellphones