The UK is calling time on its copper networks, and thousands of telephone exchanges across the UK are set to be closed in the coming years.
The end of an era, some of these buildings date back around 100 years or more. If recent history is anything to go by, many will be turned into residential buildings.
Lisa Kinch, a historic places adviser for Historic England and associate lecturer at the Manchester School of Architecture, did her PhD research on telephone exchanges in the UK, giving her a unique view on these buildings and their historical context.
We discuss her research and the unique place the UK's telephone exchanges have in the country's architectural history.