From the horses mouth.....
I work for Vodafone as a commissioning engineer installing DWDM fibre products, and I am the Field technical prime engineer for the 4G backhaul network (from BT exchanges back into the Vodafone core). Previously I worked for Cable & Wireless.
What we are talking about here is the BT leased circuits from the 4G cell sites to the BT exchanges (where Vodafone then pick it up). These circuits pre-date the C&W acquisition, and were rated at 100Mbps for 3G networking. We are currently upgrading these cell site links to 1Gbps.
This is not about new fibre digs, it's about upgrading existing links to 1Gbps to cope with 4G demand. Despite acquiring the C&W fibre footprint, we are still dependent on BT (Openreach) for many cell site access circuits.
We are also network sharing with O2 to allow both companies to roll out 4G to as much of the country as quickly as possible. From the BT exchanges, we have multiple 10Gbps DWDM links into the core, which is a meshed 100Gbps MPLS data network, with connections into our own internet backbone.
Personally, I am on a 3G connection, and at home I have seen this improve. We are still upgrading 3G connectivity alongside the 4G rollout (the radio base stations are 3G & 4G simultaneously).
This is a mammoth task, please don't underestimate the size of this project, the money we are investing, and the focus this has within the company. This report looks like we are trying to get the best value for money in the spend with Openreach. I wouldn't expect any other customer to do any different.
So if that shameless plug for my employer doesn't get me a bonus this year, I don't know what will....