Today, most answering machines are digital, and use the same technology as a CD or MP3 player. Learn more about digital answering machines in this HowStuffWorks podcast.
BrainStuff
2,619 clip(s)
How Do Search-And-Rescue Dogs Work?
BrainStuff Classics: Why Do We Drop a Ball on New Year's Eve?
Can You Really Die of Boredom?