Government Emergency Telecommunications Service

The Government Emergency Telecommunications Service (GETS) is a White House-directed emergency telephone service provided by a division of the Department of Homeland Security. GETS uses enhancements based on existing commercial technology.

GETS supports federal, state, local, and tribal government, industry, and non-governmental organization personnel during crisis or emergencies by providing emergency access and priority processing for local and long distance telephone calls on the public switched telephone network. GETS is intended to be used in an emergency or crisis situation when the public switched telephone network is congested and the probability of completing a call over normal or other alternate telecommunication means is reduced.

GETS is necessary because reliance on telecommunications has been accompanied by an increased vulnerability to network congestion and system failures. Although backup systems are in place, disruptions in service can still occur. Natural disasters, power outages, fiber cable cuts, and software problems can cripple the telephone services of entire regions. Additionally, congestion in the public switched telephone network, such as the well-documented “Mother’s Day phenomenon”, in which Mother’s Day generally has the highest blocking of long-distance telephone calls of any single day of the year, can prevent access to circuits. However, during times of emergency, crisis, or war, government personnel and emergency workers need to know that their calls will go through.

For cellular telephone users, a related capability is offered by the Nationwide Wireless Priority Service (WPS). WPS users have the ability to queue at the top for the next available communications channel to their registered base station in order to place their call by dialing *+272+[destination number]+send, greatly enhancing their ability to complete wireless calls during times of congestion. WPS is available only to designated leadership at all government levels, national security, emergency responders, and private sector critical infrastructure personnel, as approved by the NCS and Federal Communications Commission (FCC) Rules and Requirements.

...
Wikipedia