Just today I had an opportunity to send a fax. My printer has a fax option which I have never used. Tried it, didn't work. I thought it would go through my wi-fi somehow, but obviously needed a connection to a phone line. I have a modem jack on my internet box that I have a landline phone plugged into but haven't used in several years. I unplugged that and found that I didn't have a separate line long enough to reach from my printer/fax to the modem. I had to move the printer and modem at great difficulty moving things around. Finally I was able to get close enough and I jacked the printer into that.
Still no success. I plugged the phone back in and it turns out the little on/off sensor on it was broken so I couldn't check the line. So I took the phone apart and wriggled some stuff around in there, to no effect. I had a bunch of old phones in the basement I got at a surplus sale (freebies) so I looked at those. Turns out none of them had a base to plug into the phone jack, just the handsets themselves.
So I went to the thrift store thinking I could find one since nobody uses them any more. Oh, lots of junk there, but not a single phone. I did see a phone line in the wires section.
I came back home and ran several resets on my internet system and modem to no effect. I tried calling the home line from my cell phone but got disconnected immediately every time. It should at least ring even if there isn't a phone plugged in on the other end. I looked at the internet help for my service and all the auto-resets didn't work. I finally got an agent on the chat and after some diddling they reset the line. They said oh, you have an old modem that's why you're having intermittent problems, and will send a new one out.
After the reset I picked up the original old phone and heard a dial tone. I said **** this I'm not going to fax that document I'll have to do it a tedious way. As if it hadn't been tedious enough already.
So, while my printer has been great, **** those people who insist on faxes.
Oh, and then the print head clogged on my 3D printer, and that was another fiasco that finally ended up in me buying a new print head. If there was ever an evening I sorely wanted a drink, it's this one.