Home / Guides / The Transatlantic Telephone Room: Churchill's Secret Hotline
History

The Transatlantic Telephone Room: Churchill's Secret Hotline

The disguised broom cupboard that connected Churchill to Roosevelt.

Deep within the Churchill War Rooms, a secret hotline once connected British Prime Minister Winston Churchill to US President Franklin D Roosevelt, facilitating crucial transatlantic discussions during World War II. This disguised communication hub, cleverly concealed as a broom cupboard, played a significant role in shaping the course of the war.

Concealment and Security

The Transatlantic Telephone Room, also known as the 'Telephone Cabinet' or 'Transatlantic Telephone Cabinet', was deliberately designed to blend in with its surroundings, masquerading as a mundane storage space. This clever disguise was intended to prevent enemy spies and potential eavesdroppers from discovering the room's true purpose. Only a select few were aware of the room's existence and its significance in facilitating top-level discussions between Churchill and Roosevelt.

Check Dates & Prices

Technological Marvel

The Transatlantic Telephone Room was a technological marvel of its time, boasting a state-of-the-art scrambler phone system that enabled secure, real-time communication between London and Washington. This pioneering technology, developed by British engineer Tommy Flowers and his team at the Post Office Research Station, used a complex system of scrambling and descrambling to protect conversations from interception.

Key Features and Equipment

The room itself was small and modestly equipped, reflecting the urgent need for secrecy and security. Some of the key features and equipment included:

Churchill and Roosevelt's Conversations

Throughout the war, Churchill and Roosevelt used the Transatlantic Telephone Room to discuss key strategic issues, share intelligence, and coordinate their efforts. These conversations, often conducted in the early hours of the morning, played a significant role in shaping the Allied response to the Axis powers. From discussing the D-Day landings to debating the merits of a second front, the two leaders relied heavily on this secure communication link to inform their decision-making.

Visiting the Transatlantic Telephone Room

Today, visitors to the Churchill War Rooms can explore the Transatlantic Telephone Room, gaining a unique insight into the secret communication hub that once connected Churchill to Roosevelt. To add context to your visit, consider combining it with a guided Westminster WWII walking tour, which can provide a broader understanding of the wartime history and significance of the area. As you explore the room, you can almost imagine the weight of history that was made within its walls, as two of the world's most influential leaders shaped the course of the war and the future of the world.

See Westminster's War Story on Foot

The best way to bring the Churchill War Rooms to life is a guided Westminster WWII walking tour — Whitehall, the bunkers and the streets Churchill knew.

Book the Walking Tour

Related Guides