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Photograph of telephony machines

Photograph of telephony machines

Item is a photograph of telephony voice and data transmission over telephone wires technology. This machinery is an optional auxiliary function line control box.

Photograph of telephony machines

Photograph of telephony machines

Item is a photograph of telephony voice and data transmission over telephone wires technology. This is a text-only terminal beside a telephone sitting on a modem for a data connection to a remote mainframe

Photograph of telephony machines

Photograph of telephony machines

Item is a photograph of telephony voice and data transmission over telephone wires technology. The telephone sits on a modem for a data connection to a remote mainframe

Photograph of telephony machines

Photograph of telephony machines

Item is a photograph of telephony voice and data transmission over telephone wires technology with discreet control buttons for absolute control over a data connection.

Photograph of telephony machines

Photograph of telephony machines

Item is a photograph of telephony voice and data transmission over telephone wires technology. This handset, produced by the ROLM corporation is connected to a central CBX (computer branch exchange) for establishing data connections.

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