Do Not Call List
If you've been getting telemarketing calls that you don't want to get, call 1-888-382-1222 and register your phone on the Do Not Call list. You can also register online at donotcall.gov.
However, this will not entirely stop those calls. If you have your phone registered, and are still getting calls, you have to file a complaint by either calling or going online.
I quote Sugarloaf "Can you relate to our quarter track tape, our band performs in the nude. He said "U uh. Don't call us child, we'll call you."