Ecker H, Lindacher F, Dressen J, et al. - In this study, a new software, which automatically provides emergency medical service (EMS) dispatchers with a caller's geolocation, was evaluated. Researchers obtained approval from the local Ethics Committee and conducted 108 simulated emergency calls reporting a patient in cardiac arrest at 54 metropolitan locations, which were chosen according to a realistic pattern. At each location, first, a conventional emergency call, with an oral description of the location, was made; subsequently, another call was placed using an app with automatic geolocation. The two groups were compared in terms of accuracy of localization, time to the location, time to EMS dispatch and time to first thoracic compression. As per the outcomes of this pilot study, automatic geolocalization may result in a significant shortening of the duration of the emergency call, significant shortening of times until the beginning of thoracic compressions, and higher precision in determining the location of an emergency.