how would you get the google voice number to work from a proxy in a different country? i thought that it was only available for US users, and that people in other countries had to use a US proxy to use google voice?
they can trace the call back to google voice.. AFAIK ANI fail is not currently working with google voice, instead it just provides a generic telephone number as ANI, which i am sure can be tracked back to google, which in turn can be tracked back to the account that you opened the google voice account with and/or the phone number that you registered your google voice account with..
not sure that anyone would go thru that much trouble to trace the call just for a pulled fire alarm..
not sure anyone would be stupid enough to pull a fire alarm just because someone told them to... but then again i can not believe how prankNET gets anyone to do any of the crazy shit that they get people to do..