An older form of communication from before mobile phones were so common. You didn't have to
sign on for any of that "
data plan" shit, they only cost a quarter to use, they had a handy little book filled with people's phone numbers in case you didn't know them, they didn't give you
brain cancer, and they were easier for Superman to change in.
"Hmmmm, I could buy a cell phone and
sign on for coverage and
data plan, which would bleed me dry just so I can play crappy app games, or I could
use the phone booth over there for just a fucking quarter. Decisions, decisions..."