The UK’s mobile networks are undergoing a major transformation. As mobile operators retire older 2G and 3G technologies and move towards modern 4G and 5G networks, businesses and organisations using older GSM equipment need to consider whether their alarm and notification systems will continue to operate reliably.
For anyone using a GSM auto dialler, this is particularly important. An auto dialler may be a critical part of an alarm, security, nurse call, flood detection or other emergency notification system, and losing mobile connectivity could mean that important alerts are no longer delivered.
The good news is that the transition does not necessarily mean replacing your entire alarm or monitoring system. Moving to a modern 4G GSM auto dialler can provide a straightforward way to maintain reliable mobile communication.
What is happening to the UK’s 2G and 3G networks?
Mobile network operators in the UK are gradually retiring their older 2G and 3G networks.
The first thing to establish is which mobile technology your existing dialler uses.
If your current GSM auto dialler is 2G or 3G only, it is important to plan for an upgrade. A device that supports 4G is designed to use the newer mobile infrastructure and provides a much longer-term solution as the UK moves away from legacy networks.
It is also worth checking the SIM card and mobile network being used by the dialler. Changing the SIM alone will not necessarily solve the problem if the hardware itself only supports 2G or 3G.
Don’t wait until the network is switched off
One of the biggest risks is leaving an upgrade until the last minute.
Alarm and monitoring equipment is often installed in locations where access can be difficult, and upgrading may require an engineer visit, system testing and reprogramming. Planning ahead gives installers and system owners time to:
- Identify existing 2G and 3G equipment.
- Check which network and SIM each device uses.
- Determine whether the equipment supports 4G.
- Select an appropriate replacement where necessary.
- Install and configure the new equipment.
- Test voice calls and SMS notifications.
- Confirm that the complete alarm or monitoring system is operating correctly.
The Keystone Electronics AD06 4G GSM Dialler
The Keystone Electronics AD06 4G GSM Auto Dialler has been designed as a modern GSM notification solution for applications where reliable voice and SMS communication is required.
The AD06 uses 4G connectivity, helping customers move away from reliance on older 2G and 3G networks.
For security and alarm installers, the 2G switch-off is an opportunity to review existing installations and identify customers who may be using legacy GSM equipment.
A simple audit can help identify:
Which diallers are installed?
Record the make, model and connectivity technology of existing GSM diallers.
Which SIM is being used?
Check the mobile network and SIM arrangement, particularly where installations use older or roaming SIMs.
Does the equipment support 4G?
If the equipment is 2G or 3G only, plan its replacement.
Is the system still supported?
Older diallers may also have limitations relating to parts, batteries, programming or technical support.
Has the system been tested recently?
An upgrade is an ideal opportunity to test the complete alarm notification chain rather than simply replacing the communications hardware.
What about 3G-only equipment?
This is already an issue in the UK because all four major UK mobile network operators have now completed their 3G switch-offs, a 3G-only device should not be considered a suitable long-term solution.
If you have an older alarm or monitoring system that relies on 3G connectivity, it is worth arranging an upgrade as soon as possible.
What about 2G equipment?
There is still time to prepare for the 2G switch-off, but the transition has already begun.
Government guidance states that UK mobile operators will switch off their 2G networks between 2029 and 2033, with individual network operators having their own timetables.
This means organisations operating large numbers of GSM connected devices should consider starting their migration now rather than waiting for the network retirement dates.
For installations where the dialler is responsible for security or safety notifications, proactive replacement can help avoid an unexpected loss of communications.
Future-proof your alarm communication
Replacing an older GSM dialler with a 4G model can be a relatively simple way of modernising an existing alarm or monitoring installation.
Don’t wait for the 2G switch-off
The UK’s mobile networks are changing, and the retirement of 2G and 3G is an important consideration for anyone responsible for GSM-connected alarm, security or monitoring equipment.
With 3G now switched off and 2G scheduled for retirement over the coming years, now is a good time to review existing installations.
If your current GSM auto dialler relies on 2G or 3G, upgrading to a 4G GSM auto dialler can help ensure your alarm and notification system remains connected as mobile networks evolve.
Looking for a 4G GSM Auto Dialler?
The Keystone Electronics AD06 4G GSM Auto Dialler provides voice and SMS notification, multiple trigger inputs, remote control and monitoring features in a single unit. It provides a flexible solution for alarms, security, nurse call, flood detection and other warning applications.
Moving to 4G now can also simplify future maintenance and reduce dependence on legacy mobile technologies.