We have a barn that is quite a difference from the house and would like to add a router out there also, since all our animal sales are done from that point. We just have one phone line for the house and for the barn. Will it work?
No, you'd need a second phone line. But that's probably not even necessary (and probably more expensive in the long run anyway). Instead, you can use a wireless repeater or range extending antenna to extend the range of your existing wireless router.