In some neighborhoods, the equipment wasn't able to support 56kbps so 33.6 was the best available. That's how my parent's house was. Too far away to get DSL. Lines were too noisy for 56.6. My parents tried HughesNet at one point, but it was shite. Starlink would have been a good option, but they eventually strung fiber to the area before Starlink was still an idea on paper.
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.
In some neighborhoods, the equipment wasn't able to support 56kbps so 33.6 was the best available. That's how my parent's house was. Too far away to get DSL. Lines were too noisy for 56.6. My parents tried HughesNet at one point, but it was shite. Starlink would have been a good option, but they eventually strung fiber to the area before Starlink was still an idea on paper.
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.
Still over the phone lines, so yep. Extremely lucky if you get that on old copper though.
As far as I know.
(I haven't personally had dial up in about 20 tears.)