www . AmericanSecurityToday . com April 2021 - Edition 54 https :// www . youtube . com / watch ? v = lusOVxsdeWI
( See how your organization could perform a facility-wide lockdown in the event of an emergency by sending a live or pre-recorded emergency mass notification from a desk phone , mobile phone , web console or dedicated panic button , and activate physical se- curity or lighting systems to secure buildings .)
ing appropriate action to stay safe .
When a lockdown notification is activated , it can also trigger electronic door locks to protect sensitive areas . This can often be done via a contact closure and a mass notification system ’ s API . Locking doors can prevent people from entering certain areas where they might harm others , and in some cases can contain an unwanted intruder until help arrives to help resolve the situation .
Managing a lockdown can also be accomplished with a mass notification system . Following an alert distribution ,
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