IDK my bff Nokia.
You were probably born with a cell phone in your hand but there was once a time when phones existed mostly inside people's homes, and let me tell you, shit was rough.
If you missed a call, you could literally never know that you missed a call.
Unless someone at your house nicely wrote the message down for you.
Or you had this machine in your house, which recorded people's messages to a physical tape.
Pssst, it's called an answering machine, heroes.