National Do Not Call registry...

I did mine online:

https://www.donotcall.gov/register/reg.aspx

This does work... and if they do call, you can file a complaint on same form.
The last time someone "called"... I informed them they were on my Do Not Call list and asked them if they knew the penalties set-forth by the FTC. Never called again.


Read this in regards to examples of fines/penalties:

http://arstechnica.com/tech-policy/...alties-for-do-not-call-registry-offenders.ars