Im planning to do a LAN for internet/file sharing and of course LAN game party's
There are people that living far from each another like 1 mile away.... thats a problem.
Cat5 Ethernet cables are not made for long distance connectivity ( 100 meters of length max, otherwise bad connection).
So because i need a connectivity between pc's for long distance I can use Wireless, expensive, and because I prefer wired

and I heard that there is a way to convert CAT5 cable into phone line, because phone lines can be used for long distance connectivity without problems.
So I wonder if there is a way to do that LAN connectivity using phone lines.
RJ45 to phone line, do they exist these adapters? if yes, will this work for me ?
check attachment

Thanks