3G network shutdown
New Zealand’s major telecommunications providers- One NZ, Spark, and 2degrees – are planning to shut down their 3G networks by 31 March 2026. This transition marks a significant step toward enhancing 4G and 5G services, which offer enhanced speed, capacity, and reliability.
Copper network phase out
Simultaneously, the traditional copper-based Public Switched Telephone Network (PSTN) is being retired in favour of fibre-optic and wireless technologies. The aging copper infrastructure is becoming increasingly difficult and costly to maintain and will be fully retired by 2030.
Webinar & resources
FMANZ has a range of resources to help facilities managers proactively manage the 3G ‘switch-off’.
For a good overview, check out our recent webinar featuring Paul Brislen, Chief Executive of the Telecommunications Forum (TCF). You can watch a recording of the webinar here and view Paul’s presentation slide deck here.
Read on for some useful tips on the 3G switch off and copper network phase out.
Impact on mobile phone users
Device upgrades: users with 3G-reliant phones must upgrade to 4G or 5G devices to maintain connectivity. For instance, older models like the iPhone 6 will no longer function on the network.
Operator support: if your mobile operator hasn’t contacted you yet, reach out to them to confirm your phone’s compatibility with newer technologies.
Impact on critical systems
Facilities managers face more urgent concerns ahead of the switch-off as some building services and equipment may rely on 3G or PSTN lines for communication. These systems could stop functioning unless upgraded. Plan ahead by checking your buildings for copper line-dependent and 3G-reliant services and equipment, including:
Fire alarm systems: many fire alarm panels use 3G cellular networks to transmit alerts to monitoring centres. Once 3G networks are decommissioned, these panels will be unable to communicate unless upgraded to compatible technologies like 4G or 5G.
Building management systems (BMS): BMS often rely on 3G networks or PSTN lines to report faults or status updates. The discontinuation of these communication channels necessitates the adoption of alternative solutions to maintain system integrity.
Lift emergency communications: elevator emergency phones traditionally use copper landlines to connect with emergency services. The phase-out of the PSTN means these systems must transition to alternative communication methods, such as VoIP or cellular networks.
Automatic gate systems: Some gate access automation systems still rely on the 3G network to operate. To continue functioning, these systems need to be upgraded, which can prove costly as one Christchurch resident discovered. Read more here.
Other equipment that may be affected includes EV chargers, access control system alarms, CCTV systems, intercoms, HVAC or lighting systems, water monitoring systems, solar panel meters, smart meters and environmental sensors, other utility digital meters, in-building mobile systems – check that 4G and 5G coverage is sufficient
A detailed preparedness checklist can be found here (link to shutdown preparedness checklist PDF)
Interconnection of 3G and copper phase-outs
The simultaneous retirement of 3G networks and copper lines is part of a broader strategy to modernise telecommunications infrastructure. Both 3G and copper-based systems are being replaced by more advanced, reliable, and efficient technologies. This coordinated transition underscores the need for FMs to adopt comprehensive upgrade strategies that address both changes concurrently. Proactive planning and timely upgrades are essential to ensure uninterrupted operation and compliance with safety standards and other statutory requirements. By understanding the interconnection between these two transitions and taking comprehensive action, organisations can navigate this technological evolution effectively.
Recommended actions
To mitigate the impact of these transitions on critical systems, consider the following steps:
Conduct a comprehensive audit: identify all devices and systems within your infrastructure that rely on 3G connectivity or copper lines. This includes fire alarms, BMS, lift emergency phones, security systems, and any other communication-dependent equipment.
Engage with service providers: consult with your telecommunications and equipment / system providers to understand the specific timelines for the 3G shutdown and copper phase-out in your area. They can offer guidance on compatible upgrade options and may provide support during the transition.
Upgrade communication modules: replace 3G-dependent modules with those compatible with 4G or 5G networks. For systems currently using copper lines, explore alternatives such as fibre-optic connections or cellular-based solutions. Ensure that any new equipment is compatible with existing systems and complies with relevant standards.
Implement redundant communication paths: to enhance reliability, consider establishing multiple communication pathways for critical systems. For example, a fire alarm system could use both a primary fibre connection and a cellular backup to ensure continuous operation during network disruptions.
Test and validate upgraded systems: after implementing upgrades, conduct thorough testing to confirm that all systems function correctly and that alerts are properly transmitted to monitoring centres or emergency services. Regular maintenance and periodic testing should be scheduled to maintain system integrity. Ensure compliance with the NZ Building Code and other standards as appropriate.
Educate and train staff: ensure that relevant personnel are informed about the changes and trained on any new equipment or procedures. Clear communication can facilitate a smoother transition and help in promptly addressing any issues that arise.
Plan financially for upgrades: allocate necessary budgetary resources for the transition, considering costs for new equipment, installation, training, and potential service interruptions during the upgrade process.
Lessons from the Australian experience
We can learn from the Australian transition experience. Businesses in Australia faced signal issues in concrete-heavy buildings after their 3G shutdown in 2024, as 3G penetrates concrete better than 4G or 5G. Facilities managers should test signal strength for upgraded equipment in similar environments.
Additional concerns?
If you identify additional equipment or services reliant on 3G not listed above, contact FMANZ at editor@fmanz.org.
