Re: Caller ID

hi Jeff - that's a good idea - I have seen those devices advertised but
figured the telemarketers had already worked around that.

One thing I have noticed is that some calls have a number, but the name says
"out of area" or "unavailable" depending on the caller ID unit, so I was
thinking of a small database of "allowable" numbers to check against and if
present let the call through as it might be someone I want to talk to.

----- Original Message ----- 
From: "Jeff Steinkamp - N7YG" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 09, 2003 2:58 PM
Subject: RE: [Delphi] Caller ID


> Caller ID has actually become almost useless as the telemarketers have
> figured out how to defeat it. While both of my phones have Caller ID
> built-in, I find useless unless it's someone I already know who has not
> blocked their number or made the number to show up as out of area.
>
> I stumbled onto a neat little device called the zapper that has cut my
> telemarketing calls down about 300%.  The idea behind the Zapper is that
> when the phone line is picked up either by the owner or the answering
> machine, it send out a tone that represent the telephone companies
> signal that the line is disconnected.  The tone is interpreted by the
> calling computer (most calls are dialed by a computer) as disconnected
> and will dump the phone number from their queue.
>
> Now, it should not be too difficult to write a small program to do the
> same thing using the sound card to send the disconnect tone.
>
> Jeff Steinkamp


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