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The Malaysian Communications and Multimedia Commission (MCMC) will conduct a live pilot test of its upcoming Cell Broadcast System (CBS) on 19 November
The trial will send automated siren alerts and simulated evacuation notices directly to mobile phones in high-risk, flood-prone locations across Selangor, Kuala Lumpur, Kelantan, and Pahang.
Authorities have advised members of the public who receive the alerts not to panic, as the notifications are strictly part of a scheduled drill.
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The new infrastructure replaces the legacy disaster alert system managed by the National Disaster Management Agency (NADMA) and local telecommunications providers
The existing setup relies on bulk SMS alerts, a mechanism prone to network congestion, queuing delays, and late arrivals during emergencies.
By contrast, CBS functions like a one-way radio transmission. It sends dedicated data packets straight to all compatible mobile phones connected to specific base transceiver stations within a targeted perimeter, bypassing network bottlenecks entirely without requiring phone numbers, active mobile data plans, or third-party applications.
United Nations data shows that at least 44 nations have deployed similar broadcast systems for tsunamis, earthquakes, and severe storms
However, the technology remains vulnerable if natural disasters damage physical telecommunications towers, cut off power grids, or affect cellular coverage in rural areas before warnings can be transmitted.
