The old-school circuit switched network had built-in capacity issues
because every phone call required dedicated "circuits". ATT innovated
somewhat when they figured out how to multiplex phone calls, but overall
capacity was always dictated by the number of circuits they could build
and keep connected.
Packet switching changed all that. That and glass.
bp
<part15sbs{at}gmail{dot}com>
On 5/8/2021 4:16 PM, Nate Burke wrote:
I seem to remember growing up that on the day after mothers day there
was always a news report about the number of calls the phone company
handled on Mothers day and what an amazing feat that was. When did
that stop being a thing? I'm guessing in the world of voice now
there's never a capacity problem. Equipment failure taking our a
region, maybe, but even those seem very localized. When did Phone
calls always just 'work'? It seems like just a couple years ago that
WGN Radio finally got off of their 591 Choke exchange prefix.
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