>>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 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist