Stop robot callers with a tone

phonetone.jpg

Aparently there's a U.S. Special Information Tone signal for a dead phone line, and robot callers (telemarketers, debt collectors, etc.) listen for it, then remove the "dead lines" from their lists. Record it at the beginning of your answering machine messages to make (some) robots stop calling you! [via] Link.

(Photo by Flickr user scriptingnews)

Posted by Becky Stern | Jan 8, 2008 08:00 PM
Cellphones, DIY Projects | Permalink | Comments (10) | Email This | Bookmark and Share | Digg this!

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Posted by: james on January 8, 2008 at 8:41 PM

is that a standard headset adapted to the mini plug a phone uses? anyone got a link for that?


Posted by: Becky Stern on January 8, 2008 at 8:45 PM

follow the photo credit link for more information.


Posted by: Ryan on January 8, 2008 at 9:07 PM

Um, or just submit your phone number to https://donotcall.gov/ If you get a telemarketing call you get after that you can get them heavily fined, so they don't.

I signed up years ago and haven't gotten a single telemarketing call since.


Posted by: the steven on January 8, 2008 at 9:12 PM

I seem to remember buying a device, I believe it was called a "phone zapper". I plugged it in and havent gotten a telemarketer call since.


Posted by: Sporkinum on January 8, 2008 at 9:13 PM

Does that still work? I bought a device to do that about 10 years ago. It runs off the phone line voltage.
http://www.sandman.com/tmstop2.html


Posted by: John on January 8, 2008 at 9:15 PM

Thinkgeek Retro Phone Handset

Theres the link to that handset attached to the phone. Its sweet.

I got a spy remote from the same site that lets me control the tv at the local bar. They wonder how the tv ends up on Comedy Central every time I'm there.


Posted by: tyler durden on January 8, 2008 at 9:47 PM

This may be especially useful in an election year!


Posted by: MadScott on January 9, 2008 at 6:27 AM

The "Phone Zapper" and similar devices simply respond to calls with the dead-line tone. The unintended consequence of putting this on your answering machine is that people you actually want to talk to may think your line's out of order and hang up.


Posted by: James on January 9, 2008 at 9:15 AM

@MadScott: Your friends and family will only hang up if they don't wait long enough to hear you say "Hello" or your outgoing answering machine message.


Posted by: Phone User on January 9, 2008 at 5:11 PM

Some high schools have an automated phone system that calls parents when their student is absent. Playing hooky just got easier.


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