2G and 3G phase-out: planning alarm communication upgrades
Inventory dependencies on older mobile networks, prioritise critical systems and test the complete alarm chain after upgrading.

Older article, editorially updated on 4 November 2026. Previous network closure forecasts have been replaced with advice to check current operator information.
Which systems need a review?
Fire, intrusion, personal safety and lift alarms, as well as technical monitoring systems, may depend on older mobile technology. As networks close, equipment and subscriptions need to be assessed together to avoid losing communication.
Start with an inventory
- List connected devices and the mobile technologies they use.
- Check the operator, subscription, communication paths and installation requirements.
- Prioritise safety-critical systems and plan changes with the installer.
- Test the complete alarm chain after upgrading and update the documentation.
Choose according to the installation’s needs
Modernisation involves more than replacing a transmitter. Check alarm reception, any voice functions, fallback paths and installation requirements. Current S1 technology and connection options are described on the product page and in the document centre.
This article was originally published in 2024. Closure schedules vary by operator; always check the current position with your operator and installer. This article does not state a single closure date for all Swedish networks.
Would you like to know more?
Contact Lamport to discuss S1, the Alarm Portal or partnerships.
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