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Cell Broadcast: The Modern Emergency Alert System

Summary by Hackaday
Once upon a time, telephones were primarily point-to-point communications systems. There were options for three-way and conference calls out there, but by and large the plain old telephone system w…

3 Articles

Lean Right

The "severe alert" of the Municipal Civil Defense that woke up thousands of cariocas in the morning of Wednesday to warn about the risk of strong winds did not reach all cell phones — and there is a reason for that. According to the City of Rio, the alert sent by the Cell Broadcast system depends on some technical requirements and is part of a system with three different communication channels to warn the population about disaster risks.

·Rio de Janeiro, Brazil
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While Germany, Austria and the Netherlands are already alarming all smartphones in the event of an emergency, Switzerland lags behind for years. From 2029, Cell Broadcast is also intended to provide comprehensive warnings in this country.

·Zürich, Switzerland
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  • 50% of the sources are Center, 50% of the sources lean Right
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20 Minuten broke the news in Zürich, Switzerland on Wednesday, August 5, 2026.
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