"- Bob -" <> wrote in message
news

...
> On Sat, 07 Jul 2007 02:07:15 GMT, "oppie" <fios-@verizon.net> wrote:
>
>>
>>
>>Thanks for the replies. they confirmed what I had read elsewhere.
>>Perhaps, I can even build a filter box... what the heck, I like a
>>challenge.
>>Just needed to be pointed in the right direction.
>
>
> Here's a site with just about all the DR devices I know of:
> http://www.telephonesystems.com/acce...ng_devices.cfm
>
>
> I have one by COmmand COmmunications. I would not recommend it. It
> answers the line and chews up one ring... then after it rings the DR
> line and the answering machine picks up, it throws one final ring on
> the other (primary) line. Weird. Never worked right. I talked to
> COmmand before I bought it and they insisted it would see the ring
> pattern without actually chewing up a ring cycle but it does not work
> as claimed.
>
> I used to have two very simple filters you just plugged in like DSL
> filters with a setting for which ring pattern (1,2,3) they let
> through. No power required, worked off the line. Worked great. Very
> inexpensive. Unfortunately I lost them in a direct lightening strike
> and the company making them stopped doing so... that's when I got the
> CC (lame) device.
>
> If you build those filters drop me a line, I'll buy one :-)
>
In my searching, I found a distinctive ring filter schematic using a PIC
microprocessor. Even gave the source code. I'm not very good at software
stuff (writing it) but I may look into it. For what it's worth, Microchip
(maker of the PIC) gives away the IDE and assembler for free. The only part
you have to buy is a programmer or debugger. We have the ICD2 debugger at
the office which was pretty inexpensive as I recall.
http://www.analogservices.com/phone.htm
interesting note that this message was posted through news.verizon.net
It seems to propagate to the other servers that carry
Microsoft.public.windows.vista.general. It does not propagate to
news:news.microsoft.com Guess it is only a one-way sync.