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Subject: Re: Telephone Ring Suppressor
X-Newsreader: WinVN 0.99.12 (x86 32bit)
Date: Sun, 22 Sep 2002 13:41:02 GMT
NNTP-Posting-Date: Sun, 22 Sep 2002 09:41:02 EDT
Organization: Cox Communications
In article ,
> I built an anti-telemarketer system which did something
> similar... I disconnected the phone until my computer
> had identified the caller as "friend or foe"
Was that phone "ND" (normally disconnected)? Or did you
leave it connected for the first ring? Seems like you would
have to leave it connected so you could make outgoing calls.
> My 'personal' answering machine was on the same side of
> the relay as the phone I wanted to ring for a real phone
> call so either I would get it or my answering machine
> I did buy a cheapie answering machine for the
> telemarketers to listen to which was connected to the
> phone line when the relay was not activated... And on
> that one I recorded the three tone 'DISCONNECTED LINE'
> beeps. If they got through that, they got a fairly
> nasty message about how I know they are a telemarketer
> and this was all they'd EVER reach.... If they still
> wanted to leave a message, MAYBE it would be listened
> to. Someday.
You must have set your personal answering machine to two
rings so it would pick up before the telescum's answering
machine reached four rings. If they were both set to four
rings, wouldn't you have the dreaded answering machine
contention? Or am I wrong in assuming that your telescum
machine is always connected to the line?
> What I really want is a wall powered CID device that
> outputs RS232 which is actually a really simple device,
> but all I've seen in the stores just show an LCD
In the early days of CID, Bell South made a couple models of
CID boxes which had RS232 output in addition to the LCD
display, but they were pretty expensive. All you really
need is a Bell 202 demodulator. When I built my CID modem
(actually, it's just a 'dem) I used a Motorola CID chip
which did the demodulation. It's convenient that the CID
packet is sent at 1200 baud, with the normal start and
stop bits, so you can set the serial port on your computer
to a standard speed.
> I based the program on the assumption that a blocked
> number was almost certainly from a private party and
> hence more likely to be a call I'd want to get.
I found this to be just the opposite. But I hardly ever get
blocked calls anymore, even from telescum.
> These days I am using a telezapper, but they are
> starting to program around that gizmo and I may rebuild
> my old CID based system. I think I still have most of
> the parts....
You would think that the telescum would realize that someone
who installed a Telezapper probably wasn't a good prospect
for telemarketing sales, and would not waste their own time
and money trying to defeat it. You would think that,
wouldn't you? But no. It's as though they're on a mission
from God to interrupt your dinner.
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