Who called from 6783527200

I received many "fax" like beeps on my home phone at 4am and 6am on a saturday morning, very annoying and woke me up.

This # called 5 times testerday. They started about 7 pm. Then called 11 pm!!, 12:30, 1:30 and 2:30 am.!!! Ridiculous!!

It is a fax number, probably calling you in error

This number called my home at 3:53 AM today 10-3-14 I Called back using a blocked cell : message said this is Xerox corporation. I spoke to the receptionist and asked why I received a call at 3:52 am on 10-3-14 am she gave me some bs story I asked why caller id read ACSSTATEHLTHA she gave me more bs  this is an AT&T Landline in Roswell, GA. According to white pages.  I will be filling a police report

I am now getting the same message others have from 678-352-7200.  It's just beeping.  Think it is a fax number gone rogue.  Googled the number and getting Xerox Corp. in Atlanta.