Thanks for all the information.  I'd prefer to leave the power in a battery, and if it will run for 6 months or a year on a couple of AA batteries, then that should actually be a little easier to design around.

Robert Ammerman <rammerman@verizon.net> wrote:  >>Bob Ammerman:
>> I am guessing that he milli-amp level current allowed at 200V is still 
>> below
>> the real trip current for an off-hook condition.


>From: "David VanHorn" 
> You have to draw at least 20mA to guarantee being detected as off-hook.

I should have said below the 'maximum guaranteed stay-on-hook current.'

-- Bob Ammerman
RAm Systems 

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