Wind_Level t1_iubnyqk wrote
Reply to comment by trucorsair in TIL that AT&T was so regimented that there were over 9,000 Bell System Practices, including 3-page 770-130-301 "SWEEPING, GENERAL" by rosecitytransit
Very nice. I saw equipment like this in an old local exchange on a tour. My dad's 4A office looked a bit like the 1960's "country office" inset.
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