This is very similar to 'Lenny', a script someone developed for Asterisk systems. It looks like the original website is down, but there's still a FreePBX module[1], a youtube channel with many, many call recordings[2], as well as several other forums posts/etc I won't bother to link. There used to be a hosted service you could forward calls to as well.
The Lenny script's brilliance was its simplicity. Basically, it just waited for silence, then played back one of several clever lines recorded by a confusing-sounding old man. He'd ask the caller to repeat because he couldn't hear, divert questions by asking "Sorry, who did you say you were calling from again?" and tell long stories about his daughters then say "oh sorry, what was your question again?".
Note, I appreciate the cleverness and social engineering aspect of this, but I don't use it myself. I do have a blacklist on my home phone, but it only goes to a 'not in service' tone, and I've only ever added 4 numbers to it (one in particular was some guy that told me wife to "f* off" when she said she wasn't interested).
[1] https://github.com/lgaetz/freepbx-Its_Lenny
[2] https://www.youtube.com/playlist?list=PLduL71_GKzHHk4hLga0nO...
The Lenny script's brilliance was its simplicity. Basically, it just waited for silence, then played back one of several clever lines recorded by a confusing-sounding old man. He'd ask the caller to repeat because he couldn't hear, divert questions by asking "Sorry, who did you say you were calling from again?" and tell long stories about his daughters then say "oh sorry, what was your question again?".
Note, I appreciate the cleverness and social engineering aspect of this, but I don't use it myself. I do have a blacklist on my home phone, but it only goes to a 'not in service' tone, and I've only ever added 4 numbers to it (one in particular was some guy that told me wife to "f* off" when she said she wasn't interested).
[1] https://github.com/lgaetz/freepbx-Its_Lenny [2] https://www.youtube.com/playlist?list=PLduL71_GKzHHk4hLga0nO...