Posted 4/23/2021 05:33 (#8968188 - in reply to #8967634) Subject: RE: 10 Digit Dialing?
Central NC
I worked on Western Electric step by step mechanical equipment in early 70 s, almost an unimaginable world of telephone equipment now with 40 channels of 40 gig each on single fiber from manufacturers such as Nortel, Cienna, Fujitsu