Page 30 - Security Today, March/April 2024

“ The integration of video, access control and audio offer actionable insight into risks and potential physical dangers that a silent security system does not.”
known credentials and every day, normal situations.
Hearing is an incredibly valuable sense. It allows a security officer to hear the words that people say, to understand intent and actions. It even allows for hearing when an individual’s face
is obstructed from the camera feed or with a face mask.
AUDIO FOR EMERGENCIES AND EVACUATIONS
Hearing is also valuable for facility emergencies and evacuations. In those situations, employees may know the standard evacuation pro- cedure, but how do others know what to do and where to go? What if it is unsafe to evacuate? Clear audio is critical to communicate how to respond, including whether to leave the building and where to go.
Once a building is evacuated, public address messages via IP speakers can keep everyone informed about how long they might need to stay out of the building, when they can go back inside or whether they should go to another area.
Post-event, audio helps to correctly re-create the incident and the response. A person’s recollection of an event can often be unreliable. They could say: “I don’t recall,” or “I didn’t see it.” Audio can hear what happened and add clarity to the event and the investigation.
AUDIO EXAMPLES
To control entry, today’s enterprise security systems need clear voice, access control and video surveillance working together to mitigate se- curity risks. Only then can a security officer manage the event with bet- ter situational awareness, and with a more informed, faster response. The officer can see, hear, speak to, and manage any situation or threat.
Here are several ways that intercom solutions can control en- try to a facility and help keep it secure.
1. At entrances to commercial buildings, audio via IP intercoms can help security teams identify visitors via both audio and video, before they gain access to the facility, and guide them to where they need to be. They also assist in responding to emergency situations with both pre-recorded and manual announcements at the door.
2. Industrial stations often have large perimeters, and here is where IP speakers complement well with physical barriers, sensors, CCTV and other security measures, allowing security teams to lis- ten to and see activity. Automated messages at the perimeter can be broadcast to alert the individual, via voice, to leave the area.
3. In hospitals, IP intercoms at doors and entrances can allow fa- cility staff to communicate with patients and visitors remotely from reception and intake desks. Once inside the facility, those same in- tercoms can provide access and clear communication to entrances to restricted areas, cleanrooms, isolation rooms and maternity wards.
4. In retail stores, IP intercoms and speakers can enable communi- cation between office and sales staff. To control entrances, intercoms
can be used at the door on a loading dock, for example, to allow se- curity to see and speak with people moving in and out of that area.
5. Intercom solutions in prisons and correctional facilities pro- vide clear audio and video assistance for visitors, cell communica- tions and with prison management systems to enhance a security guard’s insight into situations and events. Intercoms can be placed at door and gates to communicate with inmates and to control ac- cess to restricted areas, gates, sally ports and door locks.
6. In K-12 schools, visitor entry can be controlled at the exte- rior doors, with an intercom solution that a receptionist or secu- rity guard can control inside the school. When visitors or vendors push the button outside, their images and the audio from their voices can help determine why they want access to the school. The intercom enables a two-way conversation to help the recep- tionist or guard determine why a visitor wants access.
7. On university campuses, an intercom solution can control entry at main entrances, in addition to serving as an additional layer of security at administrative offices and other areas with overly sensitive information, but they are also ideal for use at de- livery bays or other secondary entrances that have a lot of traffic.
8. Manufacturing facilities need to keep downtimes to a mini- mum and steady production, without security issues related to uncontrolled entry. Intercom solutions can control access to mul- tiple doors. They can also provide general information through- out one facility or to specific warehouses, production areas or other areas, while also helping security teams to respond to emer- gency situations with pre-recorded and manual announcements.
9. In multi-tenant facilities an intercom solution can allow ten- ants, a concierge and security officers to identify visitors quickly and easily before granting access. The ability to hear and see the visitor allows for more accurate decisions.
10. Visitor identification and area restriction are two impor- tant security concerns for government buildings at the local, state and federal levels. Intercom systems can provide that visual and audio verification help deter unauthorized staff or visitors from entering secured offices and areas.
AUDIO’S ESSENTIAL USE
Audio is not new to the security industry. IP speakers, intercoms, two-way radios and emergency help stations have been available (and deployed) in many facilities for years.
Audio should be included in every security solution that you employ, in conjunction with video surveillance and access con- trol. The integration of video, access control and audio offer ac- tionable insight into risks and potential physical dangers that a silent security system does not.
Simply put, in 2024, a silent security system cannot be an ef- fective security system. Every risk, resilience
and security program must ensure the ability
to hear, be heard and be understood in every
situation.
Bruce Czerwinski is the vice president of sales at Zenitel.
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MARCH/APRIL 2024 | SECURITY TODAY
AUDIO IN SECURITY