3 billy goats gruff is a Norwegian story ? I didn ' t know that . I ' ve known that story all my life and just assumed it was a British story , although I suppose the presence of a troll makes sense for a Scandinavian country . <| sep |> Well , there are two ways you could approach this . 1 Connected doorbell this would be easy enough to connect up to IFTTT for Hue integration , but more than that , could notify you on your phone , even if you don ' t hear . 2 Connected audio sensor something near the intercom to detect noise and cause a light reaction . Easiest route is probably to have a connected doorbell , but if like me your building has an integrated system , that might not be possible . Something like SmartThings or any other ZWaveZigbee hub could link multiple sensors together regardless and provide a lighting solution . Long and the short is that you need some way for the Hue hub to get a signal that the bell has rung , whether this be because the bell is connected or another sensor is connected .