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ETSI EN 303 406 specifies technical characteristics and methods of measurements for social alarm systems operating on a range of frequencies that may be shared with other equipment types.

Social alarms are defined in Commission Decision 2013/752/EU [i.3] as:

"Social alarm devices" are radio communications systems that allow reliable communication for a person in distress in a confined area to initiate a call for assistance. Typical uses of social alarm are to assist elderly or disabled people.