Carpet, upholstery, duct, and vent cleaning service. Pitch typically says " would you help me keep my crews busy" and "please press 9 now and I'll come on the line to answer any questions." They don't provide a company name or contact number. They call numbers in Eastern MA with some regularity. They apparently pay no regard to the do-not-call list. I've filed a report with complaints.donotcall.gov.