Oh, any my first modem was a 300 baud acoustic coupler.

Did you ever see the movie war games? They used one of those too. You take the receiver off the phone and place it in this device. What is so funny is that the movie used an automated dialer program to call all the numbers to find out which ones had modems answering so they can be hacked.

You cannot do that in real life with an acoustic coupler because you have to physically hang up the phone before you get another dial tone to dial another number.

Boy, I'm getting all nostalgic today. Those were the good ol' days. Thank you SQLServerCentral.com for the blast from the past.