Overview
- The federal MoWaS will issue the test alert at 11:00, reaching sirens, warning apps, Cell Broadcast, broadcast media and digital displays.
- An all‑clear is planned around 11:45 via apps and sirens, but no Cell Broadcast entwarnung will be sent as mobile operators evaluate the function.
- Participation varies by municipality, with some areas skipping siren tests for technical reasons and others publicizing local schedules and signals.
- Most recent smartphones will receive the Cell Broadcast message, with BBK advising iOS 16.1 or later and Android 11 or later for reliable reception.
- Authorities are modernizing siren networks and collecting citizen feedback through local hotlines and a BBK online survey after the drill.