You can find the written version of this episode at https://labattu.com/s4c4-wired-telecommunications/

(00:00) Intro

(00:48) Fundamentals of telecommunication infrastructure

(10:11) Multiplexing and addresses

(14:21) Electrical telegraphy

(18:07) The telephone

(22:08) Optical Fibre

(25:38) Trivia: dial-up Internet access

(27:08) Further reading

(27:26) Outro

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