Reacting to a "lockdown" alert on dir-s

In this video, we run through the steps a teacher, or "base user," should take when they receive a "Lockdown" alert on DIR-S (duress). 
Since DIR-S is used often in high stress situations, we have gone to great lengths to make it as user friendly and simple of a process as possible. To aid in this, we provide in this video a step-by-step rundown of what to do.