This was a new one on me, so I just lifted the receiver and listened- they said nothing, couldn't hear any background talking, this lasted 1 1/2 minutes!!!!! , then got the disconnected tone.
"MaryAnn" left a message regarding my supply charges on my electric account. Gave another number to call (440-209-5683) and a reference number to use.
As I type this, she's leaving the same message!
Have been receiving these calls for about 2 weeks now on home phone and I just let the answer machine get them. A call back number by a very polite lady... 4402095683