1078
PROTECTION FROM MALICIOUS CALLS
A simple and useful circuit that will ensure your protection from malicious calls, with an easy and certain way that you are able to change at any moment.The heart of the circuit is the PIC microproccessor 16C56, that cuts off the first rings (adjustable from 3 to 12), thereby the caller will hang up thinking that you’re absent.You are going to hear the call after the rings that you chose to cut off. V 9-12VDC P.S. 1061 PCB 65x105mm