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A comment on If AT&T Had Managed the Phone Business Like Google. Parent comment
And the reason for that is that basically you needed a wire connecting from one phone to another: https://en.wikipedia.org/wiki/Circuit_switching
On the way to modern day digital packet switching (where you just send the bits for millions of connections down massive capacity pipes) there was multiplexing, etc. but it was a long and hard road.
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And the reason for that is that basically you needed a wire connecting from one phone to another: https://en.wikipedia.org/wiki/Circuit_switching
On the way to modern day digital packet switching (where you just send the bits for millions of connections down massive capacity pipes) there was multiplexing, etc. but it was a long and hard road.