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  2. Life Alert Emergency Response - Wikipedia

    en.wikipedia.org/wiki/Life_Alert_Emergency_Response

    Life Alert's alarm monitor phone device offering includes an answering machine unit with a emergency call button, a call cancel button, an on off switch and a wall plug in, connected to a telephone line and a pendant-shaped device, typically worn on a necklace or a wristband.

  3. Medical alarm - Wikipedia

    en.wikipedia.org/wiki/Medical_alarm

    Typical systems have a wireless pendant or transmitter that can be activated in an emergency. [3] When the medical alarm is activated, the signal is transmitted to an alarm monitoring company's central station, other emergency agency or other programmed phone numbers. Medical personnel are then dispatched to the site where the alarm was activated.

  4. Emergency communication system - Wikipedia

    en.wikipedia.org/wiki/Emergency_Communication_System

    LED sign, in a wall-mounted orientation, depicting an emergency and the resulting action that should be taken to mitigate the emergency LED electronic signs use light-emitting diodes to display messages when connected over a network to an emergency communication system. LED signs, when deployed in large numbers on a network, can be used as ...

  5. Sound-powered telephone - Wikipedia

    en.wikipedia.org/wiki/Sound-powered_telephone

    Modern emergency telephone powered by sound alone. A sound-powered telephone is a communication device that allows users to talk to each other with the use of a handset, similar to a conventional telephone, but without the use of external power.

  6. Emergency telephone - Wikipedia

    en.wikipedia.org/wiki/Emergency_telephone

    Emergency phones are also found in elevators where entrapment is very common. These emergency phones connect to a live operator who can help people escape from the stopped elevator. Some car models have an SOS button that connects them to the car company's emergency centre or the emergency services and provide GPS location data. If the car ...

  7. Wireless Emergency Alerts - Wikipedia

    en.wikipedia.org/wiki/Wireless_Emergency_Alerts

    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 ...