This is a router type number said they are from Dynamic Solutions trying to collect a debt from 2007.  Dynamic Solutions has an address of 135 Interstate Blvd Suite 8 in Greenville, SC and it is the address of MAU Workforce Solutions. It was a call center because it took a while for the call to connect and you could hear others calling other individuals in the background. Checked with the BBB in SC and there are multiple complaints about the company.