One interesting aspect observed is that the wearing out of copper fibres produces fine copper particles entering the friction layer, thus contributing to its compaction.
TalkTalk and BSkyB have not built their own copper and fibre lines and rely on BT's network to sell a broadband service.
Openreach builds and maintains BT's vast copper and fibre network and has faced criticism over poor service standards and lack of competition.
Openreach builds and maintains the UK's vast copper and fibre network that connect nearly all businesses and homes to the national broadband and telephone network.
You're now too late to lobby Ofcom on the troubled question of whether BT should be forced to say goodbye to Openreach, the bit that owns and manages the copper and fibre network.
The BT website went down temporarily and the website of Openreach, a subsidiary of BT Group that builds and maintains the copper and fibre network, remained down until mid-afternoon.
Garner joined Openreach, which builds and maintains BT's vast copper and fibre network, in February 2014 and has spent much of his time trying to ward off criticism and regulatory intervention over poor service standards and lack of competition.
No longer are we tied to a fixed copper and fibre in the ground delivery mechanism and... we can reduce costs maybe on the networks, maybe on the terminal equipment, and the types of equipment we interface with is dramatically different," TfL's CIO Steve Townsend told Guardian Government Computing in a recent interview.
BT's Openreach unit is in charge of the UK's largest network of copper and fibre-optic telephone and broadband lines, and is used by rival broadband providers like Sky and TalkTalk, and by mobile phone companies to connect their masts.
They want BT Openreach, the division that builds and maintains miles of copper and fibre-optic cables, and thousands of exchanges and green street cabinets, spun off as a separate company, so that all providers can use BT infrastructure on an equal basis.
