Seems like a computer generated call to gauge if anyone will answer and if so, they probably sell it to telemarketers as a valid number or use it themselves. It's a business number, sorry you are out of luck buddy.
Apparently, they don't like Pantera's Cowboys From Hell too much blasted into their ears, hehe. First go round, I kept them on the line for about 6 minutes stringing them along, and asking questions, until I decided I'd play they some music. Then I called back a few times, and each time they answered, blasted some more Pantera for them.
Received a call from them. I usually don't pick up when I don't recognize the number. Don't know why I did this time. No one was there. They were probably just seeing if it was a good number to sell. I have been getting a lot calls here recently on my cell phone from numbers that I don't know.