Re:PAM Duress – Alternate passwords for panic situations
by BrandoElFollito on Tuesday August 24, 2021 @03:08AM
(#28285906)
Ahhh! Of course - 16 for long distance calls! How could I have forgotten (it was introduced when I was a teenager).
Thanks for reminding me :)
TL;DR Running out of numbers and putting in temporary measures requiring the 16 as prefix. Measures that likely didn't scale as well as expected since we moved on to a different system within basically 10 years.