Emergency communications network

An emergency communications network is designed to provide reliable communications during an emergency.

The term may refer to a military network, such as:
 * Ground Wave Emergency Network
 * Minimum Essential Emergency Communications Network

Emergency communication networks may also be used for notifying the public of emergencies requiring action.
 * NOAA Weather Radio
 * Emergency Alert System
 * Emergency Public Warning System
 * National Severe Weather Warning Service

It also may refer to a network established by civil authorities, with or without volunteer help:
 * Emergency communications center
 * Amateur radio emergency communications
 * Emergency communication system

Frequently, a previously established Emergency communications center provides dispatching of Emergency services and Emergency operations center capabilities during a severe disaster. In the United States, dialing 911 is the most frequent method of contacting the dispatch personnel.