I'm going to attempt to sum up things discussed on various lists.
ANI and CNID are two different things, though are often the same number. BTN
is yet another item that may or may not be the same.
ANI can be spoofed, though details not revealed on list for obvious reasons.
Toll free, premium (900), and 911 numbers receive the ANI since one of them is
being billed for the call and the other is billing for services rendered.
That's why collection services and private investigators have you return calls
on a toll free line.
You need SS7 or someone above you that has SS7 to set ANI as CNID to view the
ANI.
Some people think there should be regulation against ANI manipulation, others
don't.
----------
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
----- Original Message -----
From: John Signorello
To: Commercial and Business-Oriented Asterisk Discussion
Sent: Friday, May 09, 2008 8:40 AM
Subject: Re: [asterisk-biz] ANI
http://www.totse.com/en/phreak/introduction_to_telecommunications/cid_ani.html
Mike Hammett wrote:
Is the CID of a call to a toll free number really the ANI, therefore not
spoofed or blocked?
Someone who's opinion I respect said it generally is, but he wasn't sure.
Since I have a potential customer coming to me with an ANI requirement, not a
CID requirement, I figured I should make sure.
----------
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
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