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              Con gressional
        a Research Service






Emergency Communications: Homeland

Security Issues in the 116th Congress



Updated January 29, 2019


Overview

First responders and other emergency personnel use emergency communications systems to communicate
with each other during day-to-day operations and large-scale disasters. Emergency communication
systems are also used to enable communications between the public and response agencies. Emergency
communication systems include
    *  911 systems that receive calls from the public, requesting assistance or reporting an
       emergency, and that relay those calls to response agencies (e.g., local police and fire
       departments);
    *  land mobile radio (LMR) systems that allow police, firefighters, and emergency medical
       service (EMS) workers to communicate with each other during day-to-day operations and
       disasters;
    *  the First Responder Network (FirstNet), the nationwide public safety broadband network,
       which is currently under deployment and scheduled for completion in 2022, will enable
       response agencies at all levels of government to communicate via voice and data (e.g.,
       text, videos); and
    *  alerting systems that notify people of emergencies and warn people of danger.
These systems often rely on different technologies that can inhibit interoperability and response. For
example, 911 systems are not able to send 911 text messages to first responders in the field. State and
local police and fire agencies use various radio technologies that can connect responders within their
agency, but may not be interoperable with surrounding systems.
Federal, state, and local public safety agencies are investing in Internet Protocol (IP)-based technologies
to improve communications, coordination, and response. The federal government has created an IP-based
national alerting system that allows authorized agencies to send a single alert through multiple alerting
systems. The federal government has also invested in FirstNet, a nationwide seamless, IP-based, high-
speed mobile communications network that will enable public safety users to communicate via voice and

                                                               Congressional Research Service
                                                               https://crsreports.congress.gov
                                                                                    IN11028

CRS INSIGHT
Prepared for Members and
Committees of Congress

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