This product seems to be more about sending a file to another FAX machine that accepts files, presumably so you didn't have to own a MODEM.
They got this wrong.
In the days when FAX was used for things like sending purchase orders, what was needed was a means of putting a file on a floppy, walking to the FAX machine, then sending off a 'PDF' from there, removing the need to print out the form first.
Faxes were still sent a decade ago for this type of task, however, in a big office you had just the one physical FAX machine rather than everyone having a MODEM at their desk. It would take a little while to get things printed and shoved through the FAX machine, saving to disk would have cut down on the paper and enabled clearer documents to be sent.
In Some places 'eFAX' is still a thing, where the staff members can email a PDF (or Word doc etc.) to <number>@<faxmachine.local> and it gets sent out of the building as a FAX over POTS. For incoming FAXs, users register their email address against a phone number or extension, and get incoming faxes as PDFs in their inboxes.
For regulatory compliance reasons these systems are still in place in large banks, insurance firms, and law firms.
It amuses me greatly to imagine companies sending e-mails to fax to a fax machine which sends them to a fax that then emails the recipient the "fax"...
They got this wrong.
In the days when FAX was used for things like sending purchase orders, what was needed was a means of putting a file on a floppy, walking to the FAX machine, then sending off a 'PDF' from there, removing the need to print out the form first.
Faxes were still sent a decade ago for this type of task, however, in a big office you had just the one physical FAX machine rather than everyone having a MODEM at their desk. It would take a little while to get things printed and shoved through the FAX machine, saving to disk would have cut down on the paper and enabled clearer documents to be sent.