Emergency calls and dispatch represents a critical GIS use case wherein spatial data, real-time mapping, and geospatial analysis are integrated to optimize emergency response operations. Public safety answering points (PSAPs) and dispatch centers leverage GIS technology to accurately geolocate incoming 911 calls, validate caller addresses against authoritative spatial databases, and route incidents to the nearest appropriate responders. Through dynamic map visualization, dispatchers gain situational awareness of unit positions, jurisdictional boundaries, road network conditions, and incident clustering patterns. GIS-powered computer-aided dispatch (CAD) systems employ spatial analysis algorithms to calculate optimal routing, account for traffic impedance, and identify resource availability across service territories. Integration with real-time data feeds — including GPS tracking, aerial imagery, and sensor networks — enhances operational decision-making during complex, multi-agency incidents. The practical benefits include measurably reduced response times, improved resource allocation, enhanced interoperability between emergency services, and comprehensive post-incident geospatial reporting for performance analysis. For GIS professionals, this use case demands high-accuracy address geocoding, authoritative boundary datasets, and robust spatial database infrastructure to ensure mission-critical reliability.