I've looked around and found several alternative methods. Not too familiar with phone circuits but do know that some phones use a neon as both the ring detector and the visual indicator of an incoming call. Is this circuit of my own feasible http://home.clear.net.nz/pages/joecolquitt/ringdet.html I suggest it only because I have all of these parts lying around. I've seen solid state alternatives but really don't have the time to twiddle about with anything involving a pile of transistors, zeners, bridges blah blah blah -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu