Final answer:
A bystander summoning EMS and providing their exact location involves Phase II enhanced 9-1-1 services. This service allows emergency dispatchers to view latitude and longitude coordinates, unlike Basic 9-1-1 or Phase I enhanced 9-1-1. These FCC rules come from advancements in wireless communication and are crucial for efficient emergency services. B. Basic 9-1-1.
Step-by-step explanation:
If a bystander summons EMS using a mobile phone, and the EMS dispatcher is able to view the caller's latitude and longitude coordinates, the FCC rules that this wireless provider has utilized would be Phase II enhanced 9-1-1. Basic 9-1-1, which is also known as B. Basic 9-1-1, only provides the caller's phone number and the location of the cell site or base station transmitting the call, not the specific geographic location of the caller.
Phase II enhanced 9-1-1 is more technologically advanced and can pinpoint the caller's location by providing latitude and longitude coordinates to the emergency dispatchers, facilitating quicker response times and more accurate dispatching of emergency services.
Wireless carriers must comply with Phase II E911 regulations, which stipulate that they must provide the latitude and longitude of callers within a certain accuracy radius. This capability is critical in emergency situations, much like finding a friend in a crowded place is alleviated by the use of cell phones and their precise communication signals and encoding.