Four calls this afternoon (7/27/2017) from 7322002635 in "Dunellen" NJ ,each with no one on the line and dial tone following.  Call-back gets a busy tone.  I see no posts yet on this number that are free to research.  I wonder if this is from a number in India which has copied our exchange info.

Two more calls today (7/29), first a hangup and second with recorded message (so why five calls with nothing there before this?).  Energy related but surely a scam, press "3" to get off list.