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// Case Study · State & Local Government

One county. Every warning channel, in sync.

A coastal county replaced a patchwork of legacy sirens and manual call trees with unified outdoor warning and IPAWS alerting — activated in seconds, reaching residents on every device in a targeted zone.

ClientCoastal county EMA
RegionU.S. Gulf Coast
Deployment9 months
Scale31 siren sites · 280K residents
Deployment SnapshotOPERATIONAL
Smart city municipality at night
Outdoor sirens31 sites · geo-zonedONLINE
IPAWS / WEAFEMA gatewayAUTH
SiSA MultichannelWEA · SMS · voiceREADY
31
Siren sites
280K
Residents covered
60s
County-wide activation
6
Channels unified
// The Operational Reality

Silent siren failures and a call tree that couldn't keep up.

The county's sirens were decades old with no feedback loop — a head could fail and nobody knew until things go wrong. When a storm turned, alerting still leaned on a manual call tree that took dozens of phone calls to spin up.

There was no IPAWS/WEA integration to push a wireless emergency alert, and no way to target a single evacuation zone — it was warn everyone, or warn no one.

Silent siren failuresLegacy sirens had no supervision — failures surfaced only during scheduled tests.
Slow manual call treesSpinning up notification meant dozens of sequential phone calls.
No IPAWS / WEA pathNo authenticated FEMA gateway to reach every phone in an area.
All-or-nothing targetingCouldn't warn one evacuation zone without alarming the whole county.
// The HQE Solution

A unified system, engineered to fit.

HQE rebuilt warning as one geo-zoned system — supervised hardware, every public channel, activated from a single map.

1
Replace

Supervised, geo-zoned sirens

Failing heads were replaced with self-supervising voice sirens that report live health back to the console — no more silent failures.

2
Unify

SiSA all-channel alerting

One activation now drives sirens, WEA, SMS, voice calls and CAP feeds together from a single operator action.

3
Authenticate

IPAWS / WEA gateway

HQE stood up and authenticated the FEMA IPAWS gateway so the county can issue Wireless Emergency Alerts directly.

4
Zone

Evacuation templates & drills

Pre-built zone templates let the EOC issue a targeted evacuation order in seconds, validated through live community drills.

// Systems Deployed

The stack behind it.

Every deployment integrates the systems you already own, unified through HQE's proprietary ML/AI-powered ecosystem — integrated into one pane of glass.

SiSA Alert Software Intelligent Voice Sirens IPAWS / WEA Gateway Evacuation Zones SAFE Network Alert SOPs ADA-Compliance
// How We Deliver

From survey to sustained operations.

A disciplined, mission-grade delivery process — the same five phases on every HQE engagement.

01

Assess

RF / coverage survey, threat model & compliance gap analysis on-site.

02

Design

System design engineered to your existing infrastructure, facilities and mandates, regardless of the brands already installed.

03

Integrate

Bridge existing systems — alarms, access, C2 — into one pane of glass.

04

Deploy

Phased install, load-testing, live drills & operator certification.

05

Sustain

24/7 monitoring, supervised health & lifecycle support contract.

// The Outcome

Measurable mission impact.

60s

County-wide activation

From storm turn to public warning across every channel in under a minute.

31

Self-supervised sites

Every siren reports live health — failures are caught before they matter.

3.4x

Faster evacuation notice

Zone-targeted orders replace the dozen-call manual tree.

When the storm turned, we issued a zone-specific evacuation order in under a minute. That used to take a dozen phone calls.
EMDirector of Emergency ManagementCounty EMA
// Explore More

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// Built for State & Local Government

Let's design your Municipality or City solution.

Tell us your operational pain-points. Our veteran-led team will engineer a future-proof, fully-integrated life-safety & security solution around them.