I actually really enjoyed reading this, as posted by phk (the BSD guru): https://www.e-pages.dk/ingarkiv/7738/?page=1 https://www.e-pages.dk/ingarkiv/7738/?pag

I actually really enjoyed reading this, as posted by phk (the BSD guru): https://www.e-pages.dk/ingarkiv/7738/?page=1 https://www.e-pages.dk/ingarkiv/7738/?page=1 About the SAS system in Scandinavia implemented in 1958. More like a telephone switch. Less complex maybe? Note that you will need to read Danish.