Multiple Phone Lines into a building using FTTP?

[THX1138]

Many thanks @jamesn123 @TimmyBGood 

Very intertesting these new Multiport ONTs.

This will be exaclty what I end up needing once the big copper switch-off happens. Being able to authenticate with different providers or accounts with the same provider will be perfect! (and I assume each account will have its own External IP address presence?)

Great chat both and many thanks again.

[DaveWPA]

Hi,

I'm not sure whether this is the right place to ask but i have a query regarding a potential upgrade to Sky's Ultrafast FTTP product.  

I have a house whereby my parents live in the main house and i live in an annex.  I have a Sky Talk, TV and broadband service; my parents have their own separate telephone service with BT.  The telephone pole is right outside the house on the opposite side of the street but with only 1 x cable that comes to the house.  There is then a little black plastic casing when it meets the house and then our two separate telephone lines come out of that and go their separate way to each respective master socket.

If I upgrade to Sky Ultrafast FTTP, I presume the cable from the telephone pole to the house is replaced with fibre optic.  If this is so, what happens to my parents, who have their telephone with BT which runs on the copper line?  We seem to share the same line between house and pole?

If that cable gets replaced with fibre optic will their BT line still function ok?

This may be a stupid question so apologies if so, but although quite tech savvy i don't know the workings of phone systems.  If I upgrade I do not want to cause an issue with their own personal line?

Any ideas?

[jamesn123]

@DaveWPA 

There is currently work going on to allow different ISPs to work through multiple ports on a fibre ONT but that hasnt been released yet so for the moment you'd probably need to have two fibre lines pulled down from the pole to have two different ISPs serve you. As for the phones, its all voip now so each of you would have your phone services via the router with a unique number.

[DaveWPA]

Thanks for the response. So if I go ahead and order Sky Ultrafast, is my imminent ordering of FTTP going to affect my parents? You mention the likelihood of two fibre lines but they have no need for it. Would Openreach be aware that there are two separate telephone lines using the current copper cable coming from the pole to the house? Would the copper wire not remain for them, but one fibre line would installed for me? 

[jamesn123]

@DaveWPA 

The copper line indeed would remain and a new fibre wire would be pulled down. Openreach should certainly have record of the two different circuits in use but its worth checking with BT that their service will continue once you order FTTP. In the future your parents will likely be forced onto FTTP anyway due to the PSTN switchoff in 2025.