Ok, Like many, my all-in-one has fax capabilities. I know how to use it over the internet through my Mac. That's not the issue. Because I sometimes need to send/receive faxes with parts of the country where internet fax doesn't work (yes, that does exist) or with people using old machines that don't support modern protocols, I must maintain a land line for fax. My wife likes to roll my all-in-one into her office for scanning projects. No problem there as I can still print and scan but the fax line has to be disconnected when she does. I'd like to find a fax server that sits at the end of the phone line and lets us send/receive without the printer being tethered to the cord. It shouldn't make a difference but I have a Brother MFC-J6935DW Everything else is possible including software updates wirelessly but wireless fax to a dedicated phone line... I can't find anything—does it exist?