Reminds me of when I was a kid and used the next phone phone over to accept a third party paying call. Or, when answering machines in the early 90s only had two

Reminds me of when I was a kid and used the next phone phone over to accept a third party paying call. Or, when answering machines in the early 90s only had two digit pass codes. I would change the out going message to to "yes yes yes yes yes ..." so when the automated machine checked if the phone would accept charges it would.