I JUST got the same call.  Some dude saying "I'm sorry" in a creepy Stephen Hawking sort of voice, then hanging up.  WTF?

Got an I'm Sorry and a hang up

Just got a call started to say something and hung - up. Won't answer it again, JUST GO AND CALL AGAIN AND FIND OUT.

I got the call from this number didn't answer it though!

Phone rang on our business line we answered second ring, no-one there complete silence, dead !!! not even a dial tone.  Do these people have any clue as to how to much of their time and our time they are wasting by calling and by us writing about them