Similar experience. I called the number back and it's about a $100 gift voucher.  Spam.  It's just a bunch of Indians with names like Jimmy and Marie - their real names, clearly... ;)  I called them back about 10 times and wasted their time by tapping and blowing into the phone.  Some idiot sat there for almost 3 minutes while I did this.  Pretty funny.

I got a call on my direct line at work from this number.  No one answered of course when I picked up.

Got a call from this number today, 8/7/15 at around 10:15 am. Picked up on first ring, but there was no one there.

We are registered with Do Not Call.  We received a call from this number
today, 8/8/2015.  One ring, left no message.  This is a big bother.

Got a call this morning - rang, I didn't answer, no message.