As part of the Prehospital Stroke Study at the Universitair ziekenhuis Brussel (PreSSUB) project, the investigators have developed and tested several prototypes for prehospital telemedicine. The current system consists of commercially available hardware and a Web-based telemedicine platform. The data are transmitted to a multimedia server unit over a mobile (ultra)broadband connection (3G or 4G). Data privacy is secured by password-protected logins, role-based access control, and hypertext transfer protocol secure encryption.