1st register at the Do Not Call list web page: https://www.donotcall.gov
2nd When the number calls back file a complaint. Contact the FCC.gov to file a complaint about these numbers
Cold call, they hang up on a message machine leaving a busy dial tone.
Call your representatives about phone cold call, hang up calls from companies. Play those annoying noises back every time they call from known cold call phone numbers used to call you! New laws, considerations about phone numbers that are not contactable are in progress.
Also contact your legislatures about these "untraceable phone number abusers."
Please copy and paste this message at the top of every phone number you search. It'll help the next person hopefully.
When you file a worthless DNC complaint they put your new fresh name at the top of the DNC list, which will help those jerks when these start adding new numbers to those they call. You'll have your fresh new phone number at the very top of their sucker list. DNC complaints from citizens are worthless and ineffective I stopped filing DNC complaints months ago. The answer to our problem is using a hand held tape recorder and then repetively tape (over and over the same sound) the disconnected/out of service tone until you have about two minutes worth to play to these jerks that call us. The sound is the same one telezaper uses. I started using a repeated two minute recording of the same sound as telezapper and my calls have gone from an average of 4-10 calls a day, down to none to one per day, up until today when I wasn't here to answer the call and play them my new tape. It works. Have the tape already going before you answer the phone and continue playing it until they either hang up or you think that the tape is close to the end. If so then you hang up. They won't call back, I've proven it to myself already after just using it a few weeks. Prior to using it I've put up with over two years of these nusinance calls.
After you've clicked on the http:// link that I've provided below, then scroll on down the page to and click on HERE:
What? You don't have the tones?
Download the sound file of the telephone company disconnect tones here.