[Hidden-tech] Junk Faxes

Jonathan Dill jfdill at jfdill.com
Thu Feb 2 15:08:30 EST 2006


I had a "Telezapper" before we switched to VOIP.  When you call a 
disconnected phone number, there are those 3 tones like "booh-bah-beep" 
before you hear the recorded message.  The Telezapper seems to work by 
playing those tones when you pick up the phone--the default mode just 
plays the "booh" but there is a more "aggressive" mode where it plays 
all three "booh-bah-beep".  Apparently, some auto-dialers "listen" for 
those tones then eliminate phone numbers from their lists.  It seemed to 
help, but I had one person who complained that hearing those tones was 
"confusing" whenever she called me, so I just thought I would mention that.

Jan Werner wrote:

> You can get a fax switching device that answers the phone line 
> silently, detects fax and modem tones and routes incoming calls to the 
> appropriate device. Some even incorporate Telezapper-like technology 
> to get you off predictive dialing lists. although there are questions 
> as to whether that really works.

Jonathan



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