Multiple router and networks from one telephone line

[Nucker]

Hello, I currently have one BT router which pugs into my telephone line that provides internet to the rest of my house. I have another telephone line socket in another room, could I put another router plugged into that and provide a secondary network (or at least an alternative ethernet connection) from the same plan. And would the router have too be BT? 

[gg30340]

You can not run two routers of the one connection.

[Nucker]

Would there be any way I could have an alternative ethernet connection without having to feed it all the way round my house from where my router currently is?

[gg30340]

You could buy power line adaptors and use them. 

See link

BT Broadband Extender Flex 600 Kit (084285) | BT Shop

You do not need to use BT ones and you can get cheaper ones if you shop around.

[Nucker]

I've heard you can't open ports with those. Or is that unaffected?

[licquorice]

No idea where you heard that from, powerline adapters just use your mains wiring as an Ethernet cable effectively.

TP Link have a good range https://www.tp-link.com/uk/home-networking/powerline/