That's highly possible actually, we also have some virtual fax stuff in our environment, because "fax" is a legal thing (on the level of a registered letter) in

That's highly possible actually, we also have some virtual fax stuff in our environment, because "fax" is a legal thing (on the level of a registered letter) in some countries - similar to Telex as mentioned in the article. EDI orders don't qualify for this protection in these countries but "faxes" do. However IP lines don't officially support fax anymore, and it's hard to get analog lines these days. So virtual fax became a thing.