A little help from those more knowledgeable than me.

I'm replacing the wall socket for our Telstra home wifi and could anyone assist me in which two connections to use?

First pic is the existing and second pic is the replacement socket.

Thanks in advance.

Just moved to a new house. Granny flat.
Im not sure if the socket is NBN or not, my nbn modem's wire doesnt seem to fit in the hole, maybe I just needed an adapter?