4G Public Warning & Cell Broadcast (CBC)
Powered by E-Alert — an in-house, microservices-based Cell Broadcast Center for operators.
A complete, operator-grade Cell Broadcast Center (CBC) for secure, targeted public warning and commercial cell broadcast across 4G LTE networks. Release-15 ready, multi-operator, and built to deliver PWS, ETWS, CMAS and commercial broadcast campaigns from a single platform.
Operator-grade cell broadcast,
built in-house
In-house platform
Designed, developed and controlled internally — full ownership of the CBC stack.
Microservices architecture
Modular deployment and easier scaling across the platform.
Multi-cluster ready
Supports broadcast delivery across multiple LTE clusters.
Multiple operators
Connects with multiple mobile network operators from one platform.
Release 15 compatible
Built for 4G LTE Release 15 ecosystems.
Flexible targeting
Send messages based on TAC, Cell ID, PLMN and City.
From public warning to commercial broadcast
PWS — Public Warning System
Emergency alerts, public warning broadcasts, authority-originated notifications, advisory and safety instruction messages.
ETWS — Earthquake & Tsunami
Primary notification, secondary notification with guidance, plus ETWS test and operational messages.
CMAS — Mobile Alert System
National / presidential alerts, imminent threat alerts, AMBER alerts, public safety and test alerts.
Commercial Cell Broadcast
Service announcements, public information campaigns, outage notifications and location-based campaigns.
From campaign creation to 4G device delivery
Create
The CBE creates and manages warning campaigns.
Target
Select TAC, Cell ID, PLMN or City.
Route
Send through the correct operator and LTE cluster.
Broadcast
Deliver over the 4G radio access network to supported devices.
The CBE interacts with the CBC at each step to execute and monitor delivery.
Distributed or centralized, multi-operator
Distributed CBC
One CBC per operator domain or cluster — dedicated broadcast infrastructure close to each network.
Centralized CBC
One CBC serving multiple operator domains — a single platform fanning out to many networks.
Supports both distributed and centralized multi-operator 4G deployment models.
Ready for secure, scalable deployments
Campaign lifecycle
Create, approve, schedule, launch, update, replace and cancel campaigns; targeting, multilingual content, operator integration, monitoring and reports.
Security & governance
Strong authentication, RBAC, dual control where required, immutable audit, encryption, certificate handling and administrative segregation.
Resilience
No single point of failure in application tiers, defined failover, preserved warning state and audit history.
Performance
Low-latency dispatch preparation, bounded API response times and continuous status visibility for active campaigns.
Concurrency
Simultaneous campaigns across multiple MNOs, languages and overlapping locations without service degradation.
Observability & operations
Metrics, logs, traces, health checks, dashboards, runbooks, backup/restore and supportable release processes.
Common questions
What is a Cell Broadcast Center (CBC)?
A CBC is the network element that distributes cell broadcast messages to mobile devices in a targeted area. E-Alert is an in-house, microservices-based 4G LTE CBC that a Cell Broadcast Entity (CBE) drives to create and deliver public-warning and commercial broadcast campaigns.
What is a 4G Public Warning System (PWS)?
PWS is the standardized way operators broadcast authority-originated emergency alerts to all devices in an area — including ETWS (earthquake and tsunami) and CMAS (national, presidential, imminent-threat and AMBER alerts) — without needing subscriber numbers.
Which message families does it support?
PWS, ETWS, CMAS and commercial cell broadcast — covering emergency alerts, earthquake/tsunami notifications, national and imminent-threat alerts, plus commercial service announcements and location-based campaigns.
Can it target specific areas and multiple operators?
Yes. Messages can be targeted by TAC, Cell ID, PLMN and City, and the platform connects to multiple mobile operators in either a distributed model (one CBC per operator/cluster) or a centralized model (one CBC serving many operators).
Is it Release-15 compatible and production-ready?
Yes — it is designed for 4G LTE Release 15 ecosystems and built for operator-grade deployments with strong security and governance (RBAC, dual control, immutable audit, encryption), resilience with no single point of failure, and full observability.
Secure, operator-grade public warning and commercial broadcast
See E-Alert deliver a live PWS/CMAS campaign across a 4G network.
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