Anonymous phone call reject circuit: Made for POTS analogic phone lines, this circuit analyses the Caller Identifier data (CLIP) sent between the two first call rings of incoming phone calls, rejecting any P (Private) or O (Out of area) calls types. Fully tested in Europe. No batteries required: It takes energy directly from the phone line, surging less than 1 mA. Full project is currently described in Italian on my website at http://www.purchiaroni.com/progetti/PubbliStop/PubbliStop.html I can translate it on request.