I remember having used minitel 1B (80 colomns) in 1992 to connect to my school from home (600km away) to send my updated (using vi) report (in latex) to my teac

I remember having used minitel 1B (80 colomns) in 1992 to connect to my school from home (600km away) to send my updated (using vi) report (in latex) to my teacher. The main drawback of course was that the phone line was always busy. It was using a quite cheap (the equivalent of 0.02€ per minutes) connection (36 21).