Who called from 7049619536

I keep getting these messages from 704-961-9536. They are recordings "to hold for another representative", but no one ever comes on the line.  This is very frustrating and I need to know how to stop these calls. They never address any person's name. This is not funny.

I got calls from this number as well.  No one on line.

They are calling my workplace but when we answer there is no response.

Same as erica and EzBess. May 9, 2015.