MASS NOTIFICATION - Your Mass Notification Cheat Sheet - Solution Strengths, Weaknesses and Application Comments

Oct 13, 2026

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Mass notification guidance compares common emergency alert communication methods and how deploying multiple modes improves coverage and reliability. The material highlights links across systems to reach more individuals on or near a campus and other stakeholders, including family members. It emphasizes regular testing and accessibility planning for hearing- and sight-impaired users. A comparative review covers call boxes, digital displays, emails, intercoms, and loudspeakers, detailing strengths, weaknesses, and practical application notes.

LanguageEnglish

CategoryLetters

FormatPDF

Pages4

Reading Time2 min

AccessFree to download

Solution Strengths, Weaknesses and Application Comments

Call Boxes

Digital Displays (Changeable Message Signs)

E-Mails

Intercoms

Loudspeakers (Fixed or Portable)

MASS NOTIFICATION Your Mass Notification Cheat Sheet Here’s the latest breakdown review of the more commonly used emergency alert systems. Deploying multiple modes will help to ensure the strengths of one solution compensate for the weaknesses of others. Many of these solutions can now be linked with each other so messages can reach more individuals on or near a campus, as well as other stakeholders, such as family members. Be certain to test the systems regularly, and account for the hearing and sight impaired. By Robin Hattersley Gray SOLUTION STRENGTHS WEAKNESSES APPLICATION COMMENTS | CALL BOXES
Photo courtesy Code Blue | | • Since they are already installed on many campuses, the technology can be repurposed to push information out
• Loudspeakers can be installed for mass notification purposes
• Individuals located in the area of a call box can communicate with campus law enforcement/security who can pinpoint callers’ locations
• No sign-up required to receive messages
• Campus constituents are familiar with this type of technology
• Strobes that are normally installed can alert hearing impaired | • With traditional units, there are challenges with voice intelligibility
• Depending on the type of traditional units installed, speakers may not be loud enough for individuals standing away from the devices to hear an announcement
• Some units are not designed for communications inside buildings
• Cost due to hardwiring or maintenance
• Older or more basic versions designed for 9-1-1 calls and assistance calls, not to be warning devices
• Some models can’t cater messages for specific areas | • Normally deployed in parking lots, intramural fields, bike trails and other remote areas not easily reached by other means of communication. Also deployed around campus (outside and inside) .
• Security cameras can be installed on them for additional situational awareness
• Wireless units can overcome some cost, installation and hardwire issues
• Manufacturers of OEM equipment provide application-specific solutions that allow for audio clarity, tailored sound dispersion and comply with NFPA 72 2010, Chapter 24
• No additional infrastructure is needed with OEM manufacturers | | --- | --- | --- | --- | --- | | DIGITAL
DISPLAYS (changeable message signs, LED signs,
LCD signs, etc.)
Photo courtesy
BRG Precision Wireless | | • Many are portable
• No sign-up required to receive messages
• Reach hearing impaired
• Good return on investment if used regularly for non-emergencies
• Intrusive when properly deployed
• Many can integrate with other solutions for a multi-modal approach
• Some use Power over Ethernet (POE), reducing energy usage | • Can be costly on large campuses with many rooms or due to hardwiring or maintenance issues
• Can be overlooked if not used regularly or placed properly
• Portable units can take time to deploy | • Good for traffic control, crowd control and alerts during major events (football games, concerts, etc.)
• Can be deployed inside buildings (classrooms, hallways) and public areas (cafeterias, student unions)
• In many cases they should be used for routine communications so that the public is trained to expect they will get useful information from them | | E-MAILS | | • Can leverage pre-existing E-mail system
• Effective for messages going to staff who have computers controlled by the campus
• Campus constituents can’t opt out of the system
• Communicates with off-campus constituents
• Can be used for non-emergency communications (attendance notification, outreach and important reminders)
• Can integrate with solutions for a multi-modal approach | • Not very reliable. Not everyone checks their E-mails immediately (e.g. Message recipients in class, with a patient, or away from their desks or PDAs)
• Server overloads may result, causing delays in message receipt
• Messages may be mistakenly classifi

FAQs

Why should multiple emergency alert modes be deployed for mass notification?

Deploying multiple modes helps strengths in one solution compensate for weaknesses in others, improving message reach and reliability across the campus and surrounding stakeholders.

What accessibility considerations are recommended for mass notification systems?

The guidance recommends accounting for hearing- and sight-impaired users, including using devices like strobes to alert hearing-impaired individuals.

What is a key limitation of traditional call-box units for mass notification?

Traditional units can face challenges with voice intelligibility, may not be loud enough in areas farther from the device, and some units may not be designed for communications inside buildings.

Oct 13, 2026

Upload by vwvw