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From: csense!bote@uunet.uu.net (John Boteler)
Newsgroups: comp.dcom.telecom
Subject: Request For Summary of CO Types
Message-ID: <4237@accuvax.nwu.edu>
Date: 21 Feb 90 09:33:09 GMT
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X-Telecom-Digest: Volume 10, Issue 120, message 7 of 12


In all my experience with various small scale telephony projects, I
have never really assimilated the various switch types used in central
offices through the years.

Perhaps Larry Lippman ( @kitty ) or Bernard McKeever or other who has
had experience in this area could provide a summary of the various CO
switches, the dates of their prominance, and the common applications
they found themselves in (big cities, toll centers, etc).

For instance, most #2 ESS offices seem to serve a smaller number of
customers and operate more slowly than, say #1 ESS. Any insight into
these issues would be appreciated.

Thanx!


John Boteler
NCN NudesLine: 703-241-BARE  --  VOICE only, Touch-Tone (TM) accessible
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