In previous works, we have introduced the Domain Title Service (DTS) for a Future Internet. The DTS allows communicating entities to create or find and join ongoing conversations while minimizing costs and providing the exact QoS needed. For example, the DTS may aggregate multiple unicast streams of the same contents into one multicast and switch cryptography in mid-communication once a conversation becomes critical. In this paper, we present the first DTS prototype implementation, based on the OpenFlow Software-Defined Networking approach.