This number calls over and over and over, Never leaves a message. On calling it back, the voicemail speaks, "SDNA Quality Assurance." I am asked to leave my number if I wish to be removed from their calling lists. I did. Whether they stop the incessant calling is anybody's guess!
Got a call this AM and in picking up the phone, the caller was on the line. They had my name, scary, and indicated my computer had a windows virus per their records. I mentioned that's not possible, wanted my name off their list, they were polite, apologized and hung up. Got the impression they wanted to sell virus control software or service.