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An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...
Millions to receive emergency alert test text message. 07:41, Andy Gregory. At 3pm today, millions of mobile phones will display an emergency alert message from the government, in the first ...
At first, all but three of the events (civil emergency message, immediate evacuation, and emergency action notification [national emergency]) were weather-related (such as a tornado warning). Since then, several classes of non-weather emergencies have been added, including, in most states, the AMBER Alert System for child abduction emergencies.
According to the agency, the alert is a “wireless emergency alert” that functions similarly to text messages. They are sent to enabled cell phones in the vicinity of an emergency that requires ...
Emergency Alerts in most implementations of Cell Broadcast have distinct alert categories or levels, using a message identifier outlined in 3GPP standards. The alert category or level is defined by the severity of the warning, e.g. threat to life, imminent danger or advisory message.
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The first system was the Emergency Broadcast System, an emergency warning system in the United States, used from 1963 to 1997, when it was replaced by the Emergency Alert System. On April 9, 2008, the FCC approved an emergency alert text-messaging system so that cellular telephone users can get text message alerts in case of emergencies. [3]
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