Vacuum turns off for phone calls

November 1, 2004

When the phone rings, the AirForce central vacuum system from M.D. Manufacturing turns off with use of its telephone module. The module is a small, plug-in device that installs into the vacuum system using its built-in universal powerline bus (UPB). Short command messages are sent on a homeâ€™s power line with this system. The module connects between the telephone line and the phone as if it were an answering machine. M.D. Manufacturing

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Vacuum turns off for phone calls

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