When I answer, they hang up.

caller asked for 'manager of IT department'..
When asked, stated his name was "Jeff" and he was callinf from "B.O.I.C. News"
When asked for a number he could be reached at, he disconnected.

Def Telemarketer... they call repeatedly
When I call back the # - it doesnt ring thru ... just busy signal

Asking for manager of IT ... hangs up if asked too many questions ...  

This guy is sneaky. Said his name was Mike (heavy middle eastern accent) and asked for a guy in  the IT department. I transferred his call to straight to the IT guy's voicemail because I knew it was a sales call. Later on in the day Mike called again. I attempted to screen the call by asking him questions like the name of the company, reason for call, etc. & he become annoyed with the questions. He said he spoke with the IT guy and he was returning his call. This could not be true bc the IT guy was out for the rest of the day. Save your breath & just hang up.

These people are relentless... want to send me free whitepapers.  Finally, out of exasperation, I said send one.  I got a "test" message from "free whitepapers" that was addressed to a bunch of people-- I don't know if it's related to the call or not.  I didn't open the message; just deleted it.  Now, I'm getting calls again (twice yesterday and three today!!) plus he's also calling my boss, who's getting annoyed with them..