@TheEulerID:
The charges are the same to everybody. As for it not being cost effective to enable cabinets of 150-200 lines, then for sure (at least in areas with non-trivial backhaul). That's precisely the sort of cabinets that are being enabled through BDUK gap funding.
My point was somewhat different. The costs of providing FTTC or any other service can be unbundled - copper line access, FTTC equipment, backhaul from cabinet to point of presence, transit & peering, support, etc. If you strip out everything using regulated or ADSL unit costs, the residual cost of backhaul from the cabinet is far below leased line charges. The point is obvious if you compare BT Infinity prices minus the local loop charge with the cost of a 100 Mbps burstable leased line connected to the same cabinet or network node. Hence, the implicit charges are not the same to anyone.
Any independent operator is subject to BT's leased line pricing except under special circumstances such as the Fibre GarDen deal with Network Rail. All (!) we would ask for is backhaul priced at the same implicit cost that BT pays itself internally. This is quite separate from the BDUK process, which provides a top-up capital subsidy for the cost of installing fibre to the cabinet plus the associated equipment at the cabinet. The effect is to put an intervention area on the same basis as a commercial area in terms of the operating and unsubsidised recoverable capital costs per connection. It is these costs that I am referring to.
I understand that the allocation of network costs is an arcane and contentious subject, but what I am suggesting is not that difficult or contentious. It is obvious to anyone that without full unbundling of services and charges, BT is able to adopt charging structures with large internal cross-subsidies. That is precisely the complaint of TalkTalk & Sky about 'margin squeeze' and has been accepted, at least in part, by Ofcom.
There may be reasons of public policy why BT should be permitted to rely upon such internal cross-subsidies. Even so, they are a huge barrier to entry by small operators wishing to provide niche services in areas of minimal interest to either the incumbent or other large operators.
Edited by deleted (Wed 04-Feb-15 12:22:49)