Use the BT Archives online catalogue to search through the thousands of documents, books, objects, images and films on subjects spanning the development of telecommunications, from the birth of the electric telegraph in the 1830s to the explosion of the internet and the rise of competition.
The catalogue is regularly updated with descriptions of additional material.
Can you beat our games? Explode equipment to see what's inside, hear the changing sounds of telecommunications, see how telecommunications designs have changed over time or send an e-postacard.
History of telecommunications in the UK to be digitised in New Connections project - BT Archives, Coventry University and The National Archives to put key photographs and documents online. Find out more...
Take a trip down memory lane with extracts of the interviews which have been recorded as part of the Connected Earth oral history programme.
100 years of automatic switching!
In 1912 the GPO installed Britain's first automatic telephone exchange in Epsom.
