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Comment by chrisco255

5 days ago

Yes. It's a hard limit for old phone lines because they're limited to something like 3.1 khz.

The channels themselves are limited to 64k (like, that's what they are digitally) and then the signaling over analog channels steals a bit, bringing you to 56k.

  • And that assumes you have damn near a perfect phone line. Any interference along the line is probably going to knock you down to 33.6. I wonder if they keep stats on that.