The rapid progression of mobile technology and its widespread availability have profoundly affected our lifestyles and redefined our means of communication. Modern networks and powerful mobile devices provide us with new modalities of interaction and deliver information straight to our fingertips. Despite these advancements, many critical telecommunication services still rely on traditional voice conversations and fail to utilize the latest technological offerings. Perhaps the most noticeable amongst these are emergency calls to the single European emergency number 112, which require effective verbal communication to convey mission-critical contextual information. Therefore, this paper explicitly focuses on automated methods for obtaining and delivering mobile users' location in emergency situations. It reviews and compares state-of-the-art localization technologies and proposes a geolocation-based personal safety system. Further, it thoroughly guides the reader throughout the design, development, and implementation phases of the proposed solution, advocating suitable localization methods, explaining technical details, and reviewing the local regulatory framework.
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