🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.dcom.telecom.tech
Article #195

Re: CALLER ID ~~ MYSTERY

#195
From: Jay R. Ashworth
Date: Tue, 10 Dec 1996 00:00
27 lines
2031 bytes
dave (dav@erols.com) wrote:
: 	You sound very knowlegable about CNID however, as a computer geek with
: 15 years of online experience I've seen many an 'impossible' hack
: committed.  If someone had the specs on the signals sent between the
: caller id box and the telco I imagine that they could possibly invent a
: spoof solution.

Stipulated, anything can be hacked.  The problem here is that, assuming
you _haven't picked up the phone yet_, the design of the _switch_,
_something the hacker cannot touch_, prohibits this particular hack.

You can't get audio through the switch during the ring cycles.

Period.

Changing this requires rebuilding the line cards.

Forcing the _switch_ to send bogus CNID is HIGHLY non-trivial as well.

Cheers,
-- jr 'Deej?  Help!! :-)' a
--
Jay R. Ashworth                                        jra@scfn.thpl.lib.fl.us
Member of the Technical Staff                    Junk Mail Will Be Billed For.
The Suncoast Freenet      *FLASH: Craig Shergold aw'better; call 800-215-1333*
Tampa Bay, Florida    http://members.aol.com/kyop/rhps.html    +1 813 790 7592
Technical Details
Message-ID: <58knlu$j0h@news.usf.edu>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <56r4jo$qp5@camel1.mindspring.com> <32916610.3149@worldnet.att.net> <3291A297.636C@worldnet.att.net> <56si1d$8lf@newstand.syr.edu> <57pq59$gjm@news.usf.edu> <32A6DABD.412D@erols.com>

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 10a9ce,8cb9bc158bc4606a
X-Google-Attributes: gid10a9ce,public
X-Google-Thread: 1038e3,b04b4ce7cb859f48
X-Google-Attributes: gid1038e3,public
X-Google-Thread: f4e50,b04b4ce7cb859f48
X-Google-Attributes: gidf4e50,public
X-Google-Thread: 101049,8cb9bc158bc4606a
X-Google-Attributes: gid101049,public
From: jra@scfn.thpl.lib.fl.us (Jay R. Ashworth)
Subject: Re: CALLER ID ~~ MYSTERY
Date: 1996/12/10
Message-ID: <58knlu$j0h@news.usf.edu>
X-Deja-AN: 203394587
references: <56r4jo$qp5@camel1.mindspring.com> <32916610.3149@worldnet.att.net> <3291A297.636C@worldnet.att.net> <56si1d$8lf@newstand.syr.edu> <57pq59$gjm@news.usf.edu> <32A6DABD.412D@erols.com>
followup-to: comp.dcom.telecom.tech,misc.legal,dc.general,balt.general
organization: University of South Florida
newsgroups: comp.dcom.telecom.tech,misc.legal,dc.general,balt.general