[12755] in North American Network Operators' Group
Re: Denial of service attacks apparently from UUNET Netblocks
daemon@ATHENA.MIT.EDU (Dalvenjah FoxFire)
Tue Oct 7 22:39:39 1997
From: Dalvenjah FoxFire <dalvenjah@dal.net>
To: wb8foz@nrk.com
Date: Tue, 7 Oct 1997 18:20:01 -0700 (PDT)
Cc: nanog@merit.edu
In-Reply-To: <199710071505.LAA04791@nrk.com> from "David Lesher" at Oct 7, 97 11:05:23 am
David Lesher put this into my mailbox:
>
> > > I would not be surprised if the caller's phone number were logged, most
> > > modern modem banks talk ANIS and DNIS, which if I'm remembering correctly
> > > is basically caller ID.
> > > doesn't seem to be an extra charge to get the data from the telco.
> >
> > ANI. Actually, it's commonly CNID, which is slightly more useful.
>
> Just want to make sure all parties here do not think ANI == CNID.
> They are different critters. You get CNID usually. Real time
> ANI is available on 800 trunks, but at a cost.
I realize this is probably something one learns in Telco 101, which I
haven't taken, but if CNID == Caller ID, wouldn't ANI be *more* useful?
Or does CNID report the number regardless of Caller-ID blocking on PRI
lines/etc?
(I'm assuming that CNID == standard Caller-ID as it appears on POTS, and
that ANI == the special service that 800-lines get that *always* reports
the number, regardless of blocking..if I'm wrong, I'll accept the LART.)
-dalvenjah
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