Thanks for trying to help.  I do have Uvoice, but do not have a standard phone jack anywhere in the wall in the room with the fax machine.  There is a white cable (that looks like the type of cable that I had going into my TV when I had Comcast Cable TV) coming out of the wall where a jack used to be, and it's connected to the back of my residential gateway.  There is also a phone jack sort of thing connected to a different white cable that comes out of the wall on the other side of the room.  That phone jack thing has green and white cables plugged into it (with phone jack-type connections) that go from it into my residential gateway.  There is no place on that box to plug in another phone connection.  Does this make any sense to you?  I do have another phone jack, but it's right above my kitchen counter, and I'm really not excited about putting the printer there!  The rest of my phones are expansions that just plug into an electrical outlet.  I can look around the house for other phone jacks, but I'm not sure if they're connected to anything not that I have U-verse voice - never tried them.  I'm grateful for any help you can give.