Nested within the crisis of our attention economy, the siren is undergoing a profound transformation, prompted by our ongoing alarm fatigue and noise pollution, as well as the near-obsolescence and inefficiency of public sound system broadcasts. Employing an interdisciplinary approach from specialists in the field of sound studies, behavioural psychology, policy advisors and creative practitioners, this roundtable article aims to unpack the critical potential of reimagining sirens, extending physically beyond ear-centred listening, conceptually beyond immediate timeframes, and opening up to new collaborative methodologies across academia, industry, artistic networks and more, to tackle today’s urgent need to recalibrate emergency signals for the immediate and the distant future.