The TalkTalk package seems to be a data only - tbh, I'm not bothered about keeping the landline personally but older family members prefer to ring us on the landline and not our mobiles. :/
That's correct about Talktalk. They do 150M and 500M FTTP packages ("Future Fibre" they call it, when referring to Openreach FTTP as opposed to Cityfibre and UFO), without voice.
FTTP providers who will give you voice as well include BT, Sky and Zen (although Zen charge extra)
However, you can order FTTP from a data-only provider and use VOIP. The sequence is as follows:
- order a basic VOIP package, e.g. from sipgate.co.uk (it will have a new number). Test it so you're sure you're happy. You may buy new hardware, e.g. a VOIP phone or an ATA or a VOIP DECT base station, or you can just use a SIP softphone app.
- install your new FTTP data-only service
- after FTTP is up and running, *then* port your phone number to sipgate or whoever
- the porting of the number will automatically trigger a cease of your PSTN landline service *and* the FTTC service attached to it (so best done outside of contract, or when you're within 6 weeks of contract end)
FTTP contention: yes it exists, but you are highly unlikely to be affected.
- local loop contention: up to 32 customers share one fibre, which has 2.4G down and 1.2G up of bandwidth. This is the same for everyone.
- backhaul contention: from the exchange back to the ISP, all the traffic shares the same backhaul links (as is also the case with FTTC). Cheaper ISPs tend to have more contention here than the more expensive ones.
FTTP doesn't use cabinets. The fibre for up to 32 properties goes to a splitter, then there's a fibre directly from that splitter to an OLT port at the head-end exchange.