Full fibre connection existing internal copper network

[Peterhcee]

I don't think you have understood properly. My current configuration is that the BT cable runs to a junction box on the external wall. In that junction box it connects to the phone network. The phone network was installed in the house during construction.

Therefore my phone network carries the signal for BT broadband and and a phone line. I connect the hub to the phone socket in my 1st floor office using a ethernet cable as described before.

I don't understand why the fibre cannot be connected to the built in phone wiring as I suggested.  Can you explain please?

[iniltous]

Your current master socket effectively is redundant once FTTP is installed, the ‘equivalent’ point on FTTP is the ONT ( optical network termination ) and can be near the master socket if that’s what you want ( and a power source is available for the ONT and co located router ) , but in your circumstances may not be ideal as your current setup , your router isn’t near the master socket but connected by an extension socket in a different location, this copper wiring , as stated , is of no use regarding the connection of ONT to the router .

Assuming you want the router to remain where it is , it may be possible to locate the ONT near it , but it’s much more likely the installer won’t agree to a location that will take considerable time and effort, hence the  difficulty in giving exact advice, you won’t know where the ONT can be located until the installer arrives, it doesn’t need to be near the master socket , but can’t be in a location that takes hours to get the optical cable to your preferred location and generally that means pretty close to where the cable enters from outside.

The main point to take from this is , it’s not the installer’s responsibility to connect your extensions , the router connects to the ONT , your phone connects to the router , the standard distance between the ONT and router is 1 to 2 meters ( the size of the supplied Ethernet cable ) , you are at liberty to use any size Ethernet cable yourself if you want the router sited away from the ONT ( for example ONT near the master socket , router where it is now ) but you would supply that longer Ethernet cable and install it yourself.

Its not complicated to reintroduce copper extension wiring , but it may be time consuming, depending on what exists where.

[Peterhcee]

Sorry I read this out of sequence. 

The built-in phone network is not a 2 cable wire as you believe. 

[iniltous]

The built in ( extension) internal phone cabling  may have a multi pair cables  , but only two wires ( one pair ) is used , and even if these cables have the equivalent number of wires as Ethernet, it’s not Ethernet cabling , it may be possible to terminate more pairs within the cables and provide Ethernet sockets in place of the phone sockets , that’s something you could explore but it’s not that likely it’s going to be of any use , apart from used as it is now , as extension wiring but connected to the router , not the master socket, that’s what voice reinjection on FTTP is .

[licquorice]

No, but it only utilises 2 wires currently for broadband and is not Ethernet.

Currently, your phone and broadband are carried over the same 2 wires, once you move to full fibre, your broadband and phone will be entirely separate.

The telephony solution you require will be extremely simple. Just disconnect 2 wires from the master socket and connect your hub to the same socket that it connects to currently but with a different cable to a different socket on the hub.

However, your broadband signal will need to be delivered separately to your phone wiring. This can only be achieved by either an Ethernet cable from ONT to hub or via powerline adapters as previously stated.

[Peterhcee]

What if I told you the wire in the phone network is ethernet cable. Would that change your opinion? 

[Peterhcee]

But the phone will be changed over to digital voice. 

[yorkspark]

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@Peterhceewrote:

What if I told you the wire in the phone network is ethernet cable. Would that change your opinion? 

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How about you give all the facts to enable a correct answer?

Detail what you have and where ie - from the joint outside, what cable goes to where

have you a cat5e from the joint to a bt nte master?

from the master have you got cat5e running to the extensions?

is the cat5e daisy chained or does it run via a patchpanel or switch etc

[licquorice]

Do you or don't you wish to continue using and extension sockets for voice? Your original post implied you did. If you don't, then yes, if you truly have Ethernet cabling it can be repurposed but will require changes to both your master socket and 1st floor socket to Ethernet sickets rather than the current phone sockets.

[WSH]

Two points:

• What grade of ethernet cable?  If it is cat 5, (as opposed to 5e), it is only likely to be capable of 100Mb/s.
• Phones are usually wired as a daisy chain.  Computer networks are a star.  Daisy chain will not work for computers, (unless you are using just the one socket.  In which case, you might get away with it).