I got a creepily similar call just a moment ago.
They said that same thing about an environmental survey but asked about energy efficiency instead of air quality. "Call Somebody Inc" showed up on my caller id, along with a local phone number. They wanted to know things about the size of our home, gas or electric, if our power bill was average, etc. The young woman on the other end of the line was actually nice, so I was compliant. She also mentioned something about calling me back about a gift. That's what tipped me off to something seeming fishy. But the strange thing here is that I got this call in Birmingham, AL. There's something odd about it all...

A indian person from this number called and asked if I could answer a few questions, it would only take a minute of my time. I answered the first five or so questions then he asked my what I did for a living as a said I was a Mom the he asked what my husband did for a living. I informed him that i was not married, he then started to drill me about having a child and not being married. I asked if this was a problem for him, he said YES it is a problem. I asked why.. thats when he hung up on me. I tried to call the number back and it was out of service.

these people have called me 14 times in the last 2 days

Kind of strange - but this number called us 3 times yesterday (answered it the first time and we identified them as a telemarketer, but husband couldn't remember the company's name).  We hung up on them mid-way through.  They called back at least twice after that within a few hours.  Today, they called 2 or 3 times again.

Yes i was getting this all call all the time, they didn't leave any messages and hanged up if you answered. Good news i put them on my call reject system i set with my computer, and now i don't half to hear them call in again and put up with there bull sh*t scams.Ex... Kill all 1-800 Numbers, spec numbers like (780) 510-2478, plus the messages to spec numbers to basically tell them to f**k off!Also this system works with unknown numbers like ex... my call blocker will tell the party to disable there call blocking feature. This is a loop hole for solicitors use to try *67.Remember when someone calls that you don't know, chances are they always want something from you.

Calls at least once a day. They almost never leave a message. The one message they did leave was a woman saying "This is harassment" as if she was describing what it was she was doing. Weird.