What system can track the exact location of each caller using technology?

The Global Positioning System (GPS) is built to determine the precise location of a person or device through a network of satellites that orbit the Earth. It utilizes signals transmitted by satellites that are triangulated by a GPS receiver to calculate the exact geographical coordinates of the location. This system is highly effective for tracking movements and locations in real time, including the location of emergency callers when they dial for assistance.

In emergency response situations, GPS technology can be invaluable as it allows dispatchers to identify where callers are located, even if they are unable to communicate their whereabouts. This capability not only enhances the efficiency of response teams but also improves the overall effectiveness of emergency service operations by ensuring that assistance is routed to the exact location where it is needed.

Other systems listed in the question serve different purposes. A facility locating system typically pertains to identifying specific areas within buildings or large complexes. A personnel tracking system focuses on monitoring the location of individuals, perhaps within a controlled environment like a workplace. A transportation tracking system is more geared towards tracking vehicles or cargo in transit. While these systems may have their own valuable applications, they do not offer the broad geographical tracking capabilities inherent to GPS technology.