As I'd posted this poll a week or so back, general direct-dialed telephony, a/k/a PSTN (public switched telephone networks) seem to be in trouble. I think we could be within five years of their total collapse. And no, not just land lines (already about 25% of their peak in much of the US), but _all_ direct-dialed phones: mobile and VOIP included.
The problem, as I'd written before, is paradoxically the _low_ cost of calls. This is inducing tremendous volumes of junk calls, with one ...
@szbalint Fair point (and I addressed that late in the tootstorm). I think the structural problems with PSTN are too great, and that the defections will hit too soon for either extant US telcos to recover or continue.
I also suspect that the EU and elsewhere may simply be lagging the US experience by a few years, though we should find out on that point fairly shortly. The same underlying switching and signalling limitations as apply to the US also apply to Europe, and bad actors will bad act.
Generalistic and moderated instance.