I may have gotten some retribution. I called the number back, it asked for the extension # I was trying to call, it took several tries but the last group of 3 numbers I dialed were(I think) 4-5-6 or 7-8-9 and it asked if I had a FAX number (I pressed 1 for yes) and put in the Robo call number 850-688-9899!!!!! It asked to confirm number (1 for yes) and message said it would send me a Fax within (30 sec or 3 min!!!) I can't recall because I was astounded. I hope the POS company/person gets THEIR number tied up with THEIR OWN Robo calls/faxes.
The Do Not Call List law is a list of phone numbers where the owner does not want telemarketing calls and a law banning calls to those numbers. For a scammer its one more law to break.
Many of the scam calls come from countries where scamming dumb Americans is not a crime and the local police do not cooperate with police from the US. They cannot be stopped. Your best bet is to block the calls. Ask your phone company how. If they can't help you you can buy a call blocker for your land line. For your cell phone you can download a call-blocker ap, or you can put the pest in your contacts list and assign them the ring tone "no ring". That won't stop the calls but it will make them easier to ignore.
Thank you "Mike in MD in reply to Jr. Reply to Slim Aug. 16,2014
Thanks for the education. I finally feed like I have some recourse to the unbelievable disruptive annoyance.