DISCLAIMER:  I fully understand that the concepts that I am presenting
are not well aligned with the "rules".  I only wish to do this as an
experiment in the interest of learning a few things, not to try and mass
produce an unsafe telco device.

Art wrote:
> I can't offer any additional comments regarding the actual quan of
> elections you can capture:>:
>
> But, Maxim has a ready to go power supply that is designed
> specifically for this purpose and there is lots of tech-talk in the
> Ap Note regarding the phone lines.

Thanks for the information, I will be looking into that.  I'm thoroughly
convinced that my plan "can" work, now whether I can make it work, we'll
have to see.  ;-)  When ringing, I'm sure that I can pick up some "free"
power there and not upset the phone company too much.  I have a
transparent phone that has a mechanical bell and a bunch of neon type
bulbs that flash when it rings, IMO that's a bunch of power available
that could be put to better use.

I'm thinking that a slow drain (a few tens of uA's) from the line will
give me enough power to have the pic sleeping and all other circuitry
powered down while waiting for a ring.  With a dc blocked transformer
over the line, I should be able to rectify and capture enough of the
ringing signal to provide plenty of booster power to bring up the
caller-id chip and an LCD display for at least a minute.

michael (phreakin' ;-)

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