
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)


is that a standard headset adapted to the mini plug a phone uses? anyone got a link for that?
follow the photo credit link for more information.
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.
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.
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
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.
This may be especially useful in an election year!
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.
@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.
Some high schools have an automated phone system that calls parents when their student is absent. Playing hooky just got easier.
// What's Trending
Raspberry Pi Design Contest
Seventeen Sneaky Secret Hides
Lost PLA Casting from 3D Prints
10 Things to Connect to Your Raspberry Pi
Ten Tips for Adhesive Tape
Teardrop Camper Trailer
I Have a (Puzzling) Dream
5 Million LEGO Brick Star Wars X-Wing Starfighter
// What's Shared
A better way to slice a pumpkin
DIY Nerf Darts
100 Dollar Store Organization Ideas for Craft Rooms and Beyond
In the Maker Shed: Minty Boost USB Charger
Mad’s Mouse House
Lace Princess Crowns
I Have a (Puzzling) Dream
Play the Rings of a Tree Trunk Like a Record
// Most Commented
DIY Hacks & How To’s: Get Emergency Power from a Phone Line
Resin Casting: Going from CAD to Engineering-Grade Plastic Parts
Ten Tips for Screws and Screwdrivers
Is it a Hackerspace, Makerspace, TechShop, or FabLab?
Ten Tips for Better Measurement
Makers on TV: Big Brain Theory
Arduino Announces New Wireless Linux Board
Grow: A Portable CNC Router System
Trending Topics
Get our Newsletters
About Maker Media
Subscribe
to MAKE!
Get the print and digital versions when you subscribe