Connect two different phones to sky hub

[Lorrie35]

I have upgraded to sky fast fibre broadband. It is all installed upstairs along with a landline handset. I have a different make landline handset downstairs. How do I connect the 2nd phone (downstairs) to the hub/box upstairs so that both phones will ring? Thank you 

[Mark39]

@Lorrie35 you can either use a long extension cord with a doubler so that it plugs into the Hub together with your other phone. Or more practically, you could purchase a cordless DECT phone, with a base station that plugs into your Hub, and two handsets which talk wirelessly to the base station in order to make and receive calls.

[TimmyBGood · Accepted solution]

@Lorrie35 

Note that without unofficial and somewhat dubious rewiring, any existing wired extension sockets will no longer work.

[Lorrie35]

Yes, that sounds about right, could I use a 'splitter'?