FTTH does not use a copper line for voice, its voip.

In reply to a post by RandomJointer:

Hows the phone work then?

Just like any other:-

1) Pick up the handset;
2) Either press the green button or key in the target number;
3) Do whichever option you didn't choose in Step 2.

Simples.

BT are still going to use copper for the phones for FTTH just as they do with FTTC

In reply to a post by RobertoS:

In reply to a post by Anonymous:

The FTTC have backup batteries for power cuts,

with FTTC / FTTH you still have a seperate phone line from you home to the exchage the fibre is just for internet traffic

Uh uh!

FTTH does not have a separate non-fibre (ie copper) line for the phone. I believe the FTTH NTE incorporates a UPS just as an FTTC cabinet does.

I commission the FTTC cabs and OLT's and soon FTTH OLT's and the coppger is still being used for phones.

I dont know the design of the NTE's but UPS on them no they will be the size of a netgear router

In greenfield development where FTTH is to be used I dont think there is any intention to provide copper as well as fibre.
In brownfield deployments of FTTH its down to the end user if they want a seperate copper line. One isnt packaged with FTTH

I commission the FTTC cabs and OLT's and soon FTTH OLT's and the coppger is still being used for phones.

Presumably thats in brownfield FTTH trial sites where there is existing copper?

I was a bit puzzled why them fibre droptubes have a copper pair in 'em. Perhaps it is just for fun?

Edited by deleted (Sun 17-Apr-11 20:57:55)

I would imagine that TalkTalk, Sky etc. will be hopping mad if they can't connect to their services at the exchange in a sort of unequivalent, straight on to the regulator kinda manner. How are Openreach getting around this in the voip world?

Edited by deleted (Sun 17-Apr-11 20:59:30)

Nope, trials are about to start (if they haven't already) with no copper at all, just fibre and voip

There IS an idea I have just thought for that powercut situation or a permanent solution:

BT 'could' in theory use the existing local loop as a low power grid, supplying the same voltage as they do now (around 50V DC) which you could use as a VOIP phone power supply.

Less maintenance would be required then

Edited by chris6273 (Sun 17-Apr-11 21:03:55)