[asterisk-users] Area code 757 "Car warranty" calls

[Cary Fitch]

Sure if you can get up stream carriers to cooperate.  Just follow the CDRs.

But short of a subpoena... or enlightened self interest, like the calls take
down a tandem.. (not likely).

We could loop the calls back to get AT&T's attention, but they would just
complain about the loop, not trace them back to the source.

Cary Fitch



-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ronny Julian
Sent: Thursday, March 19, 2009 11:11 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Area code 757 "Car warranty" calls

But from what I understand of SS7 it can be traced back with the 
cooperation of the carriers. I know we have traced a call setup (AMPS) 
across 3 carriers before.

Cary Fitch wrote:
> And getting a connection
> to a voice mailbox requires a 3 -way handshake so we can record the ip
> number the call originated from.  So it should be possible to generate
> a dns black list similar to the ones used for email spam.
>
> [Cary Fitch] 
> The problem is these are coming in from the PSTN and the SS7 link is back
to
> the local switch/tandem, not to the originator.  
> CF
>
>
>
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