In my case another business was pretty competent that after I told them I didn't have a fax machine, they asked for my email. Then we started emailing each other, printing each other's documents and scanning them. If you ask me, the scanned documents was an easy one whole package while the fax is really such a hassle. Still requiring fax machines is equivalent to not taking advantage of the accessibility of Wifi Internet and Personal Computers now that they are no longer expensive. In fact, when I talked with another firm about the matter, they considered the matter ridiculous to still demand for fax when email has proven itself at a more effective way of getting a document.
Worse, should I name some of the problems of fax machines? I remembered one time I was in College and the answer key was faxed to one of my teachers. My teacher found it missing and it fell into the hands of the students. That proves fax machines aren't secure because anyone can just get the message. E-mail is a lot more secure because hacking isn't an easy job. But the safest in sending secure documents is through mail. In mail, it's highly confidential. If the message is for the branch manager then it's obviously for the branch manager. It's sealed and protocol calls that only the person authorized to open it can open it.
Really I challenge people to fax me an entire thesis and see how easy it is. I would definitely want anybody to take that challenge and let's see if they can do it!