[BC] ANI Faking

[Jeff Orr]

Yeah, it is possible to fake what is sent. Back in my days prior to 
broadcast engineering, I oversaw a large school district IP phone 
system & network (cisco call manager). One of my first duties on the 
job was to figure out why all calls from the district's 
administrative center were "coming from a farm store 25 miles north". 
Well, an installer goofed and entered the routing record as 
"nnn-745-XXXX" instead of "nnn-754-XXXX". Because we used ISDN-PRI to 
interface with the local TELCO, I can send whatever I please as ANI 
(CallerID) info. We actually did this on purpose on occasion. We did 
not want people calling back into the wrong building when we routed 
numbers across the network and out the PRI. Therefore, I "spoofed" 
the callerID into to show as the main dial-in number, or when a 
student dial-out system called it showed the main district number.

So... there are real reasons, but like everything else. People have 
found ways to do bad things with it.

Jeff

____________________
Jeff Orr
Communicorr, LTD.
Broadcast Engineering * Enterprise Networking
www.communicorr.com

-----Original Message-----
From: Tom [mailto:Radiofreetom at gmail.com]

With enough occurrences, The New Ma Bell(tm) - and probably the others -
can pull records; just like IP originating numbers, the actual
origination number can't be spoofed - the switchgear HAS to "know" what
circuit connects where at all times.  So hitting "send" and "disconnect"