The National Do Not Call Registry offers a free service to everyone with a phone or cell phone. After a phone number has been on the registry for 31 days it is then possible to file a complaint against commercial calls made to the phone.
Do not put up with phone solicitations, computer calls, or unwanted sales calls to your home phone or cell phone.
Phone numbers can be added to the Do Not Call Registry by calling from the phone to be listed on the registry, or by going to a web site. Call 1-888-382-1212 and follow the recorded instructions. After 31 days call the same number to file a complaint if a SPAM call is received.
It is also possible to go to www.donotcall.gov/default.aspx to enter one or more numbers to the registry.