Actually, Teletel/Minitel wasn't completely centralised. A lot of services ran from their own servers on an X.25 network....
The UK's inferior Prestel service was completely centralised (well, there was more than one server, but the servers were identical).
However....
> The phone company directly handled payment so there was no friction or paywall.
That idea certainly worked well at the time. Today, you might want to subscribe to a "content server" accessed via a VPN.
Actually, Teletel/Minitel wasn't completely centralised. A lot of services ran from their own servers on an X.25 network....
The UK's inferior Prestel service was completely centralised (well, there was more than one server, but the servers were identical).
However....
> The phone company directly handled payment so there was no friction or paywall.
That idea certainly worked well at the time. Today, you might want to subscribe to a "content server" accessed via a VPN.