(715) 836-4096

They could be calling from a fax phone line. Where I worked we were suppose to call out on the fax line. People would see the number on their caller ID and call it back. And of course it would ring all day. Because when we heard it ring, we presumed it was a fax coming threw.

I continue to receive calls from this phone # but no one leaves a message.  When I tried to call back to ask them to stop contacting me, the line just rings with no pick up or answering ma****e.