Beeps, I actually answered it, still beeps. When I called it back it says this number is not in service, which means it isn't a real fax machine, it is a spoof, because a fax machine will answer with a machine tone.
I work for a debt settlement company and received 2 faxes from this number TODAY both from different companies. It appears it may be a faxing service? as the 2 companies are NOT affiliated.