In many industries, large amounts of resources are allocated for continuous technology development. However, these investments may prove inefficient if a disruptive technology arises that provides new and more attractive customer propositions. While this phenomenon has been the subject of numerous papers, there is still a lack of managerial tools that properly address the challenge of responding to this threat. This paper provides an updated review of recent developments in the field and, furthermore outlines a tool that supports managers in identifying forthcoming disruptive technologies and providing them with tailored strategic options. The application of this approach is illustrated by means of a case study on mass-market voice services.