BT could improve the UK's super-fast broadband coverage by lighting up dark fibre, it has been claimed.
Speaking to PC Pro, David Harrington, Leader for Regulatory Affairs at the Communications Management Association, said there is unused capacity in the firm's network which could be used to supply faster internet services.
He explained that dark fibre is provided as an end-to-end route, with the user installing their own equipment at one end.
"The attraction of dark fibre is really to avoid the relatively heavy costs applied by traditional suppliers and particularly the incumbents - in the UK's case that's BT," Mr Harrington stated.
He said BT is reluctant to provide dark fibre for the simple reason that it cannibalises its Ethernet and leased line offerings.
"BT has been very persuasive in convincing Ofcom that its point of view is valid, saying that its business case would be severely damaged if it was compelled to offer dark fibre," Mr Harrington noted.