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RetroNetCall

Full playlist: Video / Audio
ISDN B-Channel protocols (X.75, V.120, V.110, T.70, ...)
64 min

ISDN B-Channel protocols (X.75, V.120, V.110, T.70, ...)

Datex-L: The German CSPDN (Circuit Switched Public Data Network)
52 min

Datex-L: The German CSPDN (Circuit Switched Public Data Network)

OCTOI project status update (Nov 2022)
53 min

OCTOI project status update (Nov 2022)

Introduction to the X.21 interface
49 min

Introduction to the X.21 interface

Teletext: A digital medium transcending a factor of 10⁶ in technical progress
47 min

Teletext: A digital medium transcending a factor of 10⁶ in technical progress

E1: The analog side (part 1)
67 min

E1: The analog side (part 1)

Teletex: The brief abandoned step between Telex and Telefax
48 min

Teletex: The brief abandoned step between Telex and Telefax