I am in Hamilton, OH, USA. I have Spectrum. I'd like to trap the signal out of the cable modem (telephone port) so that none of the phones in the house would ring. I use NomoRobo (runs on their server with simultaneous ring) and they shut off the rings after the first ring if it is a known spammer. If I could get this to work, my phone wouldn't ring 10 times a day for only one ring. If someone would make these, I know there would be a market for them. Every NomoRobo user would want to buy one. Thanks for the welcome.