[pzumk]

That’s because there’s actually a law against it. I remember some years ago we always had Werbeanrufe on our landline. We don’t have a landline anymore but I’ve not gotten a single spam call for years now (except from my own home internet or mobile provider, which isn’t “spam” per se but still annoying because they sometimes call you five times a day instead of emailing you about some minor things).