Called me on 6/28/16. Caller said his name was George, and that he was with a HVAC company (Heating and air conditioning). He wanted to know if I've had my air conditioning unit serviced in last 18 months. I told him I didn't have air, and didn't plan on getting air. He just kept going on, would not take no for an answer. He hung up only after I asked to be put on do not call list. Caller id showed name "unavailable", but phone # is in my area code. I suspect it was a spoofed number. Also loud boiler room noise in background. Most likely a scam.