Who called from 2072088636

This number was on my answering system, though the caller did not leave a message while I was on the line on another call.

This number has been calling our business. They wait 20 seconds then hang up

I figured out the easiest and effective way to stop the calls.  I called 877-646-7319 last week. I spoke to a live person who had my phone number removed from the callers list and I haven't gotten anymore calls.