The retirement of copper networks is often discussed in broad terms—telecom modernization, cost reduction, or infrastructure upgrades. But one of the most urgent and operationally sensitive impacts is happening in a very specific environment: elevator emergency communication systems.
For elevator integrators and building owners, POTS replacement is not an IT upgrade. It is a life-safety requirement.
For decades, elevator emergency phones relied on analog copper lines that provided a simple and highly reliable connection path to emergency response centers. These lines were powered from the central office, meaning they could continue working even during local building power failures. That reliability established a baseline expectation that modern systems must still meet today.
However, as copper retirement accelerates, building owners are increasingly forced to migrate these emergency communication systems to cellular or IP-based alternatives.
This transition introduces three critical challenges that directly affect elevator deployments.
1. Copper Retirement Removes the “Always-On” Assumption
Traditional POTS lines were not just communication channels—they were power-independent lifelines. Once copper is removed, elevator emergency phones must rely on local power and backup systems.
This fundamentally changes system design. If the communication device loses power, the emergency path disappears entirely.
This is why battery-backed design has become a core requirement in modern elevator communication systems.
2. ASME A17.1 Compliance Raises the Bar
Elevator emergency communication systems in North America must align with ASME A17.1 safety code requirements, which emphasize reliability, availability, and emergency accessibility.
While interpretations may vary across jurisdictions, the core expectation remains consistent:
The emergency communication system must remain operational during power interruption scenarios and maintain reliable connectivity to emergency response services.
This is where device design becomes critical.
3. The Importance of 24-Hour Backup Power

Unlike standard communication devices, elevator emergency phones cannot rely on short-term backup power. Outages may last hours, and in some cases, emergency response delays can extend operational dependency beyond typical UPS expectations.
This is why 24-hour standby capability is becoming a key design benchmark.
Devices like the PR12 are specifically designed for compact elevator installations, featuring integrated battery backup and cellular connectivity. With its small footprint and dual FXS support, PR12 is widely used in single-elevator scenarios where space constraints are critical.
For larger or multi-line environments—such as commercial buildings with multiple elevators or integrated safety systems—the PR18 provides a scalable approach. With multiple FXS ports, higher-density design, and industrial-grade enclosure options, PR18 supports not only elevator phones but also fire panels, alarm systems, and broader life-safety communication endpoints within a unified architecture.
Beyond Hardware: Visibility Matters
Modern elevator communication systems are no longer static. Building operators increasingly require visibility into device health, connectivity status, and power conditions.
Through VolaCloud, integrators and building owners can remotely monitor elevator communication devices, ensuring that emergency systems are not only installed but continuously operational.
This transforms elevator emergency communication from a passive installation into a managed system.
Conclusion
Elevator emergency phones are not just another use case in POTS replacement—they are one of the most critical drivers shaping the entire industry transition.
As copper networks disappear, the expectations for reliability, compliance, and uptime are not decreasing. They are increasing.
The combination of PR12 for compact elevator deployments, PR18 for multi-line commercial environments, and VolaCloud for lifecycle management represents a new standard for how elevator communication systems are designed, deployed, and maintained in a post-copper world.
- The Business Case for Managed POTS Replacement Services
- Why 5G Is Changing the Future of Life-Safety Communications
- Remote Troubleshooting vs Truck Rolls: The New Economics of POTS Support
- How Flyingvoice Improves the Installation Experience of Elevator Phones?
- CEO Corner | Vol.5:How to Use VolaCloud to Implement SIP Account ZTP (Zero Touch Provisioning)



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