As the UK’s PSTN switch-off gathers pace, organisations are under increasing pressure to ensure their voice and data services remain reliable, resilient and compliant. From construction sites and facilities management teams to lift operators and critical infrastructure providers, many environments simply cannot afford a loss of connectivity – especially during a power outage.
For these organisations, installing a solution that fails when the power goes out is not an option.
To address this challenge, Digital Carbon is launching a new battery-backed 4G router, designed to deliver uninterrupted connectivity in environments where power continuity is critical.
Built for Power Resilience and Compliance
The new EV8100 battery backup router is an innovative 4G solution with a built-in battery UPS, compliant with the EN 81-28 safety standard. This makes it particularly well suited to use cases such as emergency lift communications, remote plant rooms, construction site cabins, and other locations where regulatory compliance and service availability are essential.
In the event of a power failure, the router continues to operate, ensuring that voice and data services remain available when they are needed most. This capability is critical as analogue lines are withdrawn and organisations move fully to digital voice and data services.
Seamless Integration with VeloCloud SD-WAN
What sets Digital Carbon’s solution apart is its integration with Arista VeloCloud SD-WAN.
When deployed as part of a VeloCloud SD-WAN architecture, the battery backup 4G router becomes a fully managed and intelligent edge connection. It can operate as:
A primary connection for remote or temporary sites
A resilient backup link for fixed broadband or fibre
A failover path that automatically activates during outages
Using Dynamic Multipath Optimisation (DMPO), VeloCloud continuously monitors link quality and steers traffic in real time. If the primary circuit fails or degrades – whether due to a power cut or network issue – traffic is automatically rerouted over the 4G connection with no manual intervention.
For voice services, this ensures calls remain clear and uninterrupted. For data and critical applications, it provides predictable performance even during adverse conditions.
Secure Access with Zero Trust Network Access (ZTNA)
Security is just as important as availability. When combined with Zero Trust Network Access (ZTNA), the EV8100 forms part of a secure, modern access model.
Rather than exposing the network through traditional VPNs, ZTNA ensures that:
Users and devices are verified before access is granted
Access is limited strictly to authorised applications
Every connection is continuously validated, not implicitly trusted
This approach is particularly valuable in environments such as construction sites, lift systems, or remote facilities, where devices may be unattended but still require secure access to central systems.
By integrating the battery-backed router into a ZTNA-enabled SD-WAN environment, Digital Carbon enables organisations to maintain secure connectivity even during outages, without increasing their attack surface.
Centralised Management and Monitoring
The EV8100 router supports remote monitoring, alerting and detailed reporting, allowing IT teams to maintain full visibility into connectivity and device health. Battery status, signal strength and performance metrics can all be monitored remotely, reducing the need for site visits.
Routers are delivered pre-configured by Digital Carbon, ready for rapid deployment. Once installed, they are fully integrated into the wider SD-WAN and security framework, ensuring consistent policies and simplified management across all sites.
Designed for Simple Deployment and Operational Confidence
Through Digital Carbon’s Co-managed approach, customers benefit from:
Pre-configured hardware delivered to site
Rapid, low-touch installation
Centralised policy and performance management
Ongoing support and lifecycle management
This removes complexity for IT and operations teams, while ensuring that critical connectivity is resilient, secure and compliant.
Always-On Connectivity for a Digital-First Future
As organisations transition away from PSTN and rely more heavily on digital voice and cloud-based services, resilience can no longer be an afterthought. Power outages, network failures and remote locations all demand solutions that are designed for continuity from the outset.
By combining a battery-backed 4G router, VeloCloud SD-WAN, and Zero Trust security, Digital Carbon is delivering a practical, future-ready solution for environments where connectivity must remain available at all times.
This launch reinforces Digital Carbon’s commitment to helping organisations stay connected, secure and operational – even when the power goes out.