D928 BOSCH from DISCONTINUED BY MANUFACTURER, DUAL PHONE LINE SWITCHER, PORTIFOLIO FOR FIRE DETECTION, 12 VOLTS, 8 X 5 X 3.5 INCHES, AC POWER LED Same Day Shipping, Electrical Products 2-Year WarrantyIn Stock, Order Now! - , Radwell Repairs. Introducing the Bosch D928 Dual Phone Line Switcher, a reliable and efficient solution for your business's communication needs. This device allows you to easily switch between two phone lines, making it perfect for businesses that require a high volume of incoming calls. Brand new and still sealed, this switcher is of the highest quality and will provide your business with years of trouble.

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The D928 Dual Phone Line Switcher allows the control panel to operate over and supervise two separate phone lines. Typical applications are schools, factories, and care facilities where the ability of the system to relay information off‐premises is especially critical for safeguarding life and property.. The D928 must be able to swap connection to the control panel between the primary and secondary phone lines. The control panel will dial phone numbers programmed in Phone Parameters by way of which ever phone line is connected to the panel at a given time.