Telemaster Intercom

• Brand: Birmingham Sound Reproducers

The BSR Telemaster intercom was an advanced inter-office communication system that enhanced business operations across various settings.

Features and characteristics:

• Versatility: The system was suitable for a wide range of business environments, including offices, shops, restaurants, and factories.
• Multi-point communication: De Luxe models allowed communication between any or all stations, enabling flexible inter-departmental conversations.
• Executive control: Certain models provided simple two-way conversation capabilities between a master unit and extensions.
• Loud-speaking functionality: The Telemaster was a loud-speaking telephone system, eliminating the need for handsets.
• Instant selection: The master unit offered a quick and positive selection of extensions.
• Group calling: The ability to simultaneously call one, several, or all extensions.
• Adjustable volume: Users could adjust the volume for loud calling or paging at a distance.
• Power options: Models were available for both AC mains and battery operation.
• Long-lasting batteries: The battery-operated models used small, inexpensive dry batteries estimated to last over six months under normal use.
• Aesthetic design: Both AC and battery models featured identical appearances, finished in a new silver-grey color to harmonize with various surroundings.
• Modern appeal: The Telemaster was marketed as the most up-to-date equipment available, adding "new dignity" to business establishments.

This intercom system represented a significant advancement in office communication technology for its time, offering flexibility, ease of use, and professional aesthetics to enhance business operations.

Here you find 105 models, 97 with images and 21 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from BSR (Brand), Birmingham Sound Reproducers Ltd.; Staffordshire