BT's infrastructure subsidiary Openreach has launched a tool that will make it easier for rival firms to build their own fibre networks.
Telecoms regulator Ofcom recently said it wants to make it easier for companies to build ultrafast fibre-based networks that connect directly to homes and commercial premises.
These, it said, would make use of BT's existing telegraph poles and ducts - the underground tunnels that carry telecoms cables - and give customers more choice, innovation and affordable prices.
Openreach's new Digital Mapping Tool represents a step in this direction, as it gives rival broadband providers a comprehensive and interactive view of its existing infrastructure.
As a result, it will be much easier for them to plan their own deployments and work out how to harness the current technology already in place.
Clive Selley, Chief Executive of Openreach, commented: "This is another important development in our plans to give greater access to our network and encourages other companies to join Openreach in building better, broader and faster communications services for the whole UK.
"As our infrastructure already exists, CSPs (communications service providers) will be able to build and expand their fibre network in far quicker timescales than if building it from scratch.
"The mapping tool further enhances that process, giving CSPs exactly the same level of access to our network data as Openreach."
Mr Selley went on to note that Openreach's ducts and poles have been open to other companies for several years.
However, he said they have not been used on a large scale to date, even though Ofcom believes the price to access them is "in line with international comparisons".
Mr Selley added that he hopes these new simpler processes will encourage more companies to invest, especially in those areas that are not currently served by high-speed networks.
The effort to open out the network could be particularly crucial in light of Ofcom recently ordering BT to legally separate from Openreach, so it is run as a distinct and legally separate company with its own board.