What is cell broadcasting?

Cell broadcast is a system for transmitting emergency messages directly to mobile phones in a defined geographical area. Unlike SMS or app, it does not require prior registration or user consent: the alert message automatically reaches all active devices in the affected area at the time of the alert. In Switzerland, the Federal Council requested a credit of CHF 15.8 million to implement this infrastructure, integrating the current alarm systems based on sirens, radios and Alertswiss apps.

Will cell broadcast replace Alertswiss and sirens?

No. Cell broadcasting is an integration of existing communication channels, not a replacement. Sirens, radio messages, web platform and the Alertswiss app will continue to work regularly. Cell broadcast will add a new automatic and capillary alert channel, offering an extra layer of protection without eliminating established systems.

How much will it cost citizens to receive messages via cell broadcast?

Receiving alert messages via cell broadcast does not entail any additional cost for the citizen. The investment of CHF 15.8 million requested by the Federal Council fully covers the development and implementation phase of the infrastructure. Mobile subscriptions remain unchanged and will continue to be regulated by the usual rates of network operators.

When will cell broadcasting be operational in Switzerland?

The exact implementation date was not specified in the Federal Council communication. The next step is the approval of the commitment appropriation by Parliament. Once the financing has been approved, the infrastructure setup works will begin with the mobile network operators and the competent cantonal authorities. The detailed schedule will be communicated in the course of the next developments.

Will I receive a cell broadcast message even if I don't have Alertswiss?

Yes. Cell broadcast works regardless of previous apps or recordings. Once the system is activated, all active mobile phones in the affected area will automatically receive the alert message, regardless of which app the user has downloaded or which mobile operator they use, provided that the network supports the cell broadcast protocol.

Population alerts: Bern accelerates cell broadcast (cross-border guide)

Di Redazione Frontaliere Ticino · Published on 26 August 2026

Emergency alert system demonstration with mobile phone notifications in a Swiss town square

The Federal Council is asking for CHF 15.8 million for cell broadcast, an alert system that will reach citizens directly on their mobile phones.

Context

In a nutshell

The Federal Council accelerates the introduction of cell broadcasting in Switzerland
Required credit of CHF 15.8 million for the infrastructure
New system will integrate sirens, radio, web and Alertswiss app
Timeline ahead of original schedule

Key facts

What: Introduction of cell broadcast, an alert system that sends messages directly to mobile phones in a geographical area
When: Expected acceleration compared to the original schedule (required by the end of 2026)
Where: All of Switzerland
Who: Federal Council
Amount: CHF 15.8 million

The Federal Council has asked Parliament for a commitment appropriation of CHF 15.8 million to speed up the introduction of mobile broadcasting in Switzerland. This new system will allow emergency alerts to be transmitted directly to the mobile phones of the population present in an affected area, integrating the current communication channels based on sirens, radio, web and the Alertswiss mobile application.

The decision represents an acceleration compared to the initial schedule. The original intention was in fact to solicit the commitment credit for cell broadcast together with other measures to modernise information, alarm and alert systems, with a message to be presented by the end of 2026. However, the consultation on the multi-channel population protection strategy revealed a cross-cutting consensus: multiple parties have

Operational details

Integration with the current system

Cell broadcasting does not replace the existing alert infrastructure, but completes and enriches it. The Swiss population protection system currently uses sirens, radio messages, the information web platform and the Alertswiss application, tools that will remain in place and continue to play a central role. The addition of cell broadcast represents a logical evolution of the multi-channel model already adopted by Switzerland. Unlike existing communication channels, the cell broadcast bypasses the need for a conscious subscription: the technology leverages the infrastructure of cellular networks to automatically reach all terminals present in a defined geographical area at the time of the alert.

Implementation scenario

The exact timing of the activation of the system has not been specified in the federal documentation, but the request for acceleration approved by the Federal Council suggests a faster route than the previous calendar. The development phase of the infrastructure will require coordination with the national mobile network operators and with the cantonal authorities responsible for civil protection.

Once operational, cell broadcast will become the first communication channel to potentially reach the largest portion of the population simultaneously. This has significant operational implications: i

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Key points

How it will work from the citizen's point of view

Once implemented, cell broadcast will bring a tangible change in the emergency alert experience for all inhabitants of Switzerland. When a federal or cantonal authority triggers an alarm for a specific geographical area, all active mobile phones in that area will automatically receive a notification message. No prior action by the user is necessary: no registration to services, no activation of applications, no prior consent.

The message will also reach those who have not downloaded Alertswiss, those who do not listen to the radio and may not hear the sirens. It therefore represents an additional level of coverage, fundamental in crisis situations where time is critical and the certainty of reaching the population is essential.

Federal costs and investment

The investment of CHF 15.8 million requested from Parliament covers the entire development and implementation phase of the infrastructure. For the Swiss citizen, receiving alerts via cell broadcast does not entail any additional cost: it is a public investment in federal civil protection infrastructure. Everyone will continue to pay their mobile subscriptions according to the usual rates, regardless of the alert traffic generated by the broadcast cell.

What to expect in the coming months

The next step is the

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Source: rsi.ch

Frequently Asked Questions

What is cell broadcasting?: Cell broadcast is a system for transmitting emergency messages directly to mobile phones in a defined geographical area. Unlike SMS or app, it does not require prior registration or user consent: the alert message automatically reaches all active devices in the affected area at the time of the alert. In Switzerland, the Federal Council requested a credit of CHF 15.8 million to implement this infrastructure, integrating the current alarm systems based on sirens, radios and Alertswiss apps.
Will cell broadcast replace Alertswiss and sirens?: No. Cell broadcasting is an integration of existing communication channels, not a replacement. Sirens, radio messages, web platform and the Alertswiss app will continue to work regularly. Cell broadcast will add a new automatic and capillary alert channel, offering an extra layer of protection without eliminating established systems.
How much will it cost citizens to receive messages via cell broadcast?: Receiving alert messages via cell broadcast does not entail any additional cost for the citizen. The investment of CHF 15.8 million requested by the Federal Council fully covers the development and implementation phase of the infrastructure. Mobile subscriptions remain unchanged and will continue to be regulated by the usual rates of network operators.
When will cell broadcasting be operational in Switzerland?: The exact implementation date was not specified in the Federal Council communication. The next step is the approval of the commitment appropriation by Parliament. Once the financing has been approved, the infrastructure setup works will begin with the mobile network operators and the competent cantonal authorities. The detailed schedule will be communicated in the course of the next developments.
Will I receive a cell broadcast message even if I don't have Alertswiss?: Yes. Cell broadcast works regardless of previous apps or recordings. Once the system is activated, all active mobile phones in the affected area will automatically receive the alert message, regardless of which app the user has downloaded or which mobile operator they use, provided that the network supports the cell broadcast protocol.