Re: FTTP costs
Can't use mobile as none of the networks provide a usable signal. I already use VoIP and only have the landline as it's required for FTTP (and I'm not with a "data only" provider). I am planning to use something like a USB powerbank to keep the link up during a power failure (I already do this for my router and modem).
The voucher pledge card was dropped through the door by OpenReach a week or two before they started the installation. This is a trial area, and the vouchers are valid - they are part of a different scheme.