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From: myerston@cts.sri.com
Newsgroups: comp.dcom.telecom
Subject: Re:  Buffalo, Texas
Message-ID: 
Date: 18 Aug 89 17:08:00 GMT
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X-TELECOM-Digest: volume 9, issue 307, message 8 of 8

Maybe EVERYBODY is right.  What is Central Office is called depends
largely on who you talk to and what you are talking about.  Some
(maybe not all) variations:

     o  Base/Control Group.  What the engineers call it.  Used to be
        assigned by Western Electric.  Base unique to location,
        control group to switching entity.  Form XXXX-CX as in
        6A97-C4 equals a 1AESS in LA Grand (see below)
     o  Common Language ID.  A combination of the place name
        contracted (they spell out how) and, if necessary, a number.
        PLALCA02 equals Palo Alto, California 02.  I >think< that
        this is where the billing location comes from.
     o  Street Address.  Used mostly by sales and support people and
        those who work there.  666 Howard is an example.
     o  The old exchange name like CEDAR 2 or whatever. Popularly
        used by oldtimers for oldtime offices.  The modern equivalent
        of just the NXX is seldom used since modern machines can
        support multiple 10K groups with unrelated NXX codes.

Maybe there are still more variations out there.