Comments by "American Spirit" (@americanspirit8932) on "Spanning Tree" channel.

  1. I learned all this back in 1964, when I went to my very first electronic switching School, number one ESS, electronic switching systems. In the Bell System. I used it, daily, until I retired after 36 years. I was systems qualified in, number one ESS, tsps, traffic service position systems, number for ESS, First All Digital electronic switching system, number five ESS, first All Digital fiber optic system. All these systems are used in the Bell System for communication, that's how you telephone systems work. Today is October 1st 2022.
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