I have had multiple calls from this number.  I answer the call, but no one ever speaks.  The call eventually disconnects.  When I call it back it goes to a voicemail which says to press #1 if you want to be removed from the list, or #2 if you want to speak to someone.  I pressed #2, but it just repeats the message over and over again.  I pressed #2 about 10 times in one call, but it just went back to the beginning of the message each time.  I even tried calling the number from different lines, but got the same results each time.  I have now blocked this number.