The "phone network" nowadays offer high quality sound. Things improved drastically with VoLTE and other technologies which allows much more bandwidth for calls than the old networks could support.

I mean: I, for one, was definitely talking about telephone calls. :)

But now that you mention it: Yeah, the state of common VoIP (Teams/Slack/Zoom/whatever) is also usually not very good. It's like there's some huge bandwidth crunch here in 2026 that is driven by the strenuous demands of VoIP, except: There isn't.

When I was doing some live streaming with others in a studio a couple of years ago, we worked with some of that. It never sounded very good. (It doesn't sound very good when the big-time acts at CBS or NPR or Fox News do it, either.)

But! When we occasionally had remote co-hosts who had enough technical competence to make it work properly on their end, we were able to use SonoBus[1]. That audio was positively pristine, like they were sitting unseen in the same room as everyone else.

[1]: https://www.sonobus.net/