bote@uunet.uu.net (John Boteler) (02/21/90)
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 {zardoz|uunet!tgate|cos!}ka3ovk!media!csense!bote