If your device calls into a monitored system, you will speak with a live, trained professional at a call center. This person will then either call emergency services or call a loved one. If you’re not able to communicate, emergency services will automatically be called and will come as quickly as possible. (The response time will vary, according to where you live.)
If your device is part of an unmonitored system, it automatically dials an emergency contact. You can also program the device to call 911.