The land line network used to work like the cell network does today. Early home computer networks, and then later, home internet were enabled by the court ruling that said the phone company couldn't block you from plugging modems in (or charge more for the same copper wire if you did plug a modem in).
California network neutrality laws supposedly ban discrimination against devices as well as against web sites, but it's either unenforced, or there is a loophole.