My Father mentioned that last week (he's in South Bend). He said it works great. I'm not sure how many states have anything like it though. I certainly could use it.

I'm on the no-call lists and still get them occasionally. I enjoy talking very softly so they are listening very intently then I blast them with one of those mini airhorns...

All telezper does is play a tone which messes their computer up. get the tone and play it before your answering machine message.

Zapper Tones

Another OSO'er posted this site I have it on my machine. I'd say helps but I'm never home soooo:rolleyes: I'm guessing:D

I recorded the tone of a" number no longer in service" on a recorder. When I get a call that says "unknown" on my caller Id, I play the tone. I heard it works as well as the zapper. I don't know for sure, they seem to come in waves, a bunch for a while, and then very few. I haven't had many since I made my own "zapper".