Lone Worker feature are triggered by user inactivity. If the wearer doesn’t interact with the radio for a preset period of time, say 10 minutes, a pre-warning tone will go off, signaling that it’s time for him or her to reset the timer by using the radio in some way, by pressing a button or adjusting the volume. If the user still doesn’t interact with the radio, an emergency call will be initiated.
The Lone Worker function also tracks user activity but operates a bit differently. Once the radio wearer activates Lone Worker, they’re reminded to “check in” every five minutes by pressing the Push-to-Talk, or PTT, button. Checking in lets others know that all is well.
If the user doesn’t check in, the radio will automatically transmit an emergency alert that help is needed. The radio’s microphone also stays engaged until help arrives, letting other users hear what’s happening in the area. The function can be set for anywhere from five to 80 minutes, with the reminder going off every five minutes.