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Article #194

Re: CID MYSTERY

#194
From: Jay R. Ashworth
Date: Thu, 12 Dec 1996 00:00
27 lines
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dave (dav@erols.com) wrote:
: I wonder if it might be possible to overide the signal from the switch
: to the CID box during the initial phase of the call?  Perhaps following
: the last phone number digit with an interfering tone, then resending
: your own signal?  I'm not a telco person, so mind you all that this is
: pure speculation.

Not on any currently produced switch.

(I'm getting tired of repeating this...)

The only CO switches which were ever designed that there might be an
audio path to the called end before off-hook are old brossbar and panel
switches from the late 60s and early 70s.  These switches are exceedingly
unlikely to have been retrofitted for CNID; the LEC's will probably
have simply put it off until they installed a digital switch... which
_doesn't_ have an available audio path down which to spoof the CNID
before off-hook.

<sigh>,
-- jr 'and I _am_ a telecom person' 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
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From: jra@scfn.thpl.lib.fl.us (Jay R. Ashworth)
Subject: Re: CID MYSTERY
Date: 1996/12/12
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