I was talking to someone today who wants to set up a remote webcam. The property only has a phone line, no other internet. The cam location is about 400 feet from the house. There is AC power run from the house to the cam location.
If I was doing this I would pull an old Netgear RM356 Modem Router out of the garage, get a Panasonic BL-C140 set up to FTP a snapshot at time intervals, and connect them via a pair of powerline ethernet adaptors.
However the modem router is pretty old tech and not a common item these days, does anyone have a better, more current, idea?