Yes, that's one of the first things they are taught on is that alert tone because that's their lifeline.
We do also do radio checks every Sunday on the midnight shift for alert tone test to make sure that the alert tone is still working.
We also do that with cars too, so that's all done on a Sunday evening when they're somewhat quiet.
Each officer that's working will have to hit their alert tone so we know that walkie is working then. If it isn't, we know to take it out and get them another walkie and get it repaired.