911 service system means a coordinated system of technologies, software applications, databases, customer-premise equipment components, and operations and management procedures used to provide 911 service through the operation of an efficient and effective network for accepting, processing, and delivering 911 calls to a public safety answering point, including, but not limited to, 911 service, next-generation 911 service, and any emerging technologies, networks, and systems that allow access to 911 service.