Get an alert if the device loses communication for some period of time



The user should be able to get an alert on the app if the device loses communication for a (user-selectable) period of time.

The device could have been accidentally powered off, has lost signal, has a dead battery, or is malfunctioning.

For instance, if a parent is relying on the device to provide ready communication to their child, it is important to know right away if that connection becomes unavailable for longer than a few minutes so alternative methods of communication can be established using the last-reported location.

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