Converting Telephone Sockets to RJ45 for Home Networking?

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Hello everyone,

I have three phone sockets in our house. One of which is the Master Socket in our living room which has the router connected to it and also has a spare telephone port, one is the former master socket in the hallway (before the living room one was rewired by BT to use as the master instead), and finally, a standard telephone socket in the upstairs bedroom.

My plan is to be able to buy two ethernet socket faceplates to replace the hallway and bedroom sockets with RJ45 ones, and use the existing telephone wiring to make it possible to connect an upstairs device to a downstairs one via ethernet for home networking.

I've taken some photos of the sockets as they are, should these be needed to help answer my question:

Hallway Socket: https://www.dropbox.com/s/5v5jr56zeo65c6o/Hallway%20Former%20Master.jpg?dl=0
Living Room Socket: https://www.dropbox.com/s/8krmnpq24j2e9li/Living%20Room%20Master.jpg?dl=0
Bedroom Socket: https://www.dropbox.com/s/wcjhsf4kz93pro2/Bedroom Telephone.jpg?dl=0

Kind Regards,
Jay
 
That isn't network cable.

If it is twisted-pair telephone cable (CW1308) it may work over the short distances you're likely to be dealing with. As you only have three pairs the best you'll ever get is 100Mbps (Gigabit requires four pairs).
 
As above, you might get 100Mpbs on two pairs if you're lucky. Zero chance of using it to pull other cables through.

G.hn is a standard that can use telephone lines for up to gigabit network transmission (an evolution of the older HomePNA standard used in very old BT Hubs). I'm not convinced the products are that popular though, as they seem tricky to find

https://www.comtrend.com/cee/Product/200$prod.html
 
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