Long distance calls are sometimes routed over geostationary satellites. These signals travel for 2x40,000km which leads to a very noticeable delay of ¼ of a second, the answer will reach you ½ a second later than usualy, which feels very odd.
At least that was the case in the 1990s, when I used the POTS to call long distance. Nowadays I’d assume most of that is routed over the Internet, which uses undersea cables and thus is usually much faster than that.
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steventhedev@lemmy.world 1 week agoSpeed of light in glass is about 2/3c. Internet routing does not follow great circle routes either, so add an extra 20% fudge factor for that.
From experience, voice calls sometimes get extra latency added in for no good reason whatsoever. Calling again usually resolves the issue.
So while there’s a bit more delay, despite being noticeable it doesn’t change how you talk on the phone.
brotundspiele@sh.itjust.works 1 week ago
beastlykings@sh.itjust.works 1 week ago
Don’t forget the velocity factor of regular copper wire is somewhere on the order of 95%.
And if it’s coaxial copper, then it’s closer to 80%, and in some cases as bad as 50%.
Science is weird.
wesker@lemmy.sdf.org 1 week ago
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Techranger@infosec.pub 1 week ago
WHAT?? NO, NO, I’M IN THE LIBRARY! THE LIBRARY!! OK, CIAO!