I think I still have my old 2400bps modem lying somewhere. Still, the list left out Videotex systems that were available in Europe, like Prestel in the UK, BTX

I think I still have my old 2400bps modem lying somewhere. Still, the list left out Videotex systems that were available in Europe, like Prestel in the UK, BTX in Germany, Videotel in Italy and so on. Those were telco-supplied and allowed to connect to third-party services, although they were comparatively expensive. Oh, I left out the French Minitel that was officially retired only in 2012.