Beepers, also known as pagers, were the best way to contact someone before everyone became reachable by cell.
Any piece of pop culture that features a beeper automatically dates itself as taking place in the ’80s or ’90s.
Beepers were little devices that had a special number someone could send messages to – and then you’d have to go find a phone so you could call the person who sent the message back in order to get the full message.