Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!lll-winken!netsys!vector!telecom-gateway
From: tad@ssc.UUCP (Tad Cook)
Newsgroups: comp.dcom.telecom
Subject: Re: Another Cool Thing About GTE
Message-ID: <telecom-v09i0428m08@vector.dallas.tx.us>
Date: 4 Oct 89 01:02:20 GMT
Sender: news@vector.Dallas.TX.US
Organization: very little
Lines: 12
Approved: telecom-request@vector.dallas.tx.us
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@vector.dallas.tx.us
X-TELECOM-Digest: volume 9, issue 428, message 8 of 10

Regarding Tom Ace's piece on GTE lines being wired backwards, it
is not that they are always reversed, it's just that they don't
care...because the AE phones have polarity guards.  This is one
of the tests built into the Proctor test systems for GTE.  As part
of the dial test, it checks with reversed and normal polarity.
That way the installer never has to worry about whether the
jack is wired reversed or not.  It also means that on older offices
with reverse answer supervision that the phone could still do
end-to-end DTMF signalling.

Tad Cook
tad@ssc.UUCP