Who called from 4153660712

Hi, my name is Logan and I am calling from the offices of Mike Rothenberg who is with Beta Vale Corp. can I talk with _____.
I start asking questions and Logan does not want to disclose who Mike is or is not at liberty to tell me anything because Mike and an associate of our company need to be on a conference call.  I ask what this is about and I get the same Jack S**t about not a liberty.  This is not the first time we have gotten a call like this.  Next time.... look out.

Just more telemarketing I'm sure (and we're on the do not call list). Didn't answer the phone, they left no message.  Caller ID just had the telephone number.

Called again.  No caller ID.  Didn't answer.

Same call as the others.  My name is "xyz" and I'm calling on behalf of Chakka Harris, please connect me with __________.  
Me: What is the call regarding?
XYZ: I've not been informed of the reason for the call.  Please connect me to__________.
Me:  I'm not transferring the call until I know what the call is regarding.
XYZ: The call is from Chakka Harris
Me:  I got that. I need more information.
XYZ:  I'll call back
Me:  Don't bother. (hang up)

I get this call 3-4 times a day.

Heavy accent male caller asking for the owner.  When denied he said he will call back.  No name on the caller ID.