Elevator Emergency Communication: The POTS IN A BOX® Solution

The challenge: elevators can’t afford a communication gap

Elevators rely on consistent communication systems for three distinct needs:

Need	Why it matters
Emergency response	Immediate, reliable communication with rescue services is critical during an entrapment or medical event.
Maintenance coordination	Technicians need dependable lines for diagnostics and coordination during service calls.
Passenger assurance	Passengers must be confident they can reach help at any time — a code requirement, not just a comfort feature.

Traditional copper POTS lines have long carried this traffic, but they’re becoming less reliable and more expensive to maintain every year. One large commercial real estate company found this out the hard way: its aging copper lines suffered frequent service interruptions, rising maintenance costs, and vulnerability to weather damage — all while the price of maintaining a single POTS line kept climbing. On top of the reliability problems, the company was struggling to meet updated compliance regulations for emergency communication systems.

What ASME A17.1-2019 actually requires

Building owners are often surprised by how specific the current code is. Under ASME A17.1-2019 (adopted alongside CSA B44), elevator emergency communication systems must provide:

• Two-way communication to a location staffed by authorized personnel, with automatic fallback routing if the first call goes unanswered.
• Visual/text communication so passengers who are deaf, hard of hearing, or speech-impaired can send and receive information — not an optional accessibility add-on, but a code requirement.
• Video communication for elevators with a rise of 60 feet or more, so authorized personnel can visually confirm whether an activation is a genuine entrapment.
• Automatic daily line verification — the system must self-check the communication path without placing a test call, and raise both audible and visual alarms if the connection fails.
• Backup power of at least 4 hours for communications and visual indicators, and at least 1 hour for audible alarms.

That last point matters more than it might seem: industry data suggests 95–98% of elevator emergency phone activations are false alarms rather than actual entrapments. A system that can’t reliably verify its own line — or that goes dark during a power outage — turns a false alarm into a real safety gap.

The POTS IN A BOX® solution

DataRemote’s POTS IN A BOX® is engineered to replace the copper line behind an elevator phone without touching the phone, car panel, or monitoring setup. In the deployment described above, the 90X1 POTS IN A BOX® was installed to replace failing, increasingly expensive copper lines with a stable, redundant communication path — fully integrated with the building’s existing systems.

Why it fits elevator communication specifically

Capability	Elevator communication benefit
Up to 48-hour battery + UPS backup	Exceeds the 4-hour code minimum by 12x, keeping emergency calls working through extended outages.
5G/LTE connectivity with automatic failover	Future-proof connectivity that doesn’t depend on a single carrier or network path.
Drop-in RJ-11 FXS/FXO connection	No rewiring — the appliance connects to the same ports the elevator phone already uses.
Automatic daily line verification	Meets the code’s self-check requirement without manual test calls.
Remote fleet management	Monitor and manage every line across a portfolio from one platform, with near real-time fault notifications.
Multiple line support	Manage every elevator unit in a building — or across a multi-site portfolio — from a single deployment.

Case study: commercial real estate portfolio

The challenge. A large commercial real estate company’s copper POTS lines, used for elevator emergency communication, were becoming increasingly unreliable — frequent service interruptions, rising maintenance costs, weather vulnerability, and climbing per-line pricing — while the company also needed to close a compliance gap on two-way communication requirements.

The solution. DataRemote’s 90X1 POTS IN A BOX® replaced the failing copper lines, providing a stable, redundant communication path for elevator emergency calls with cellular and battery backup to maintain operation during power outages or service disruptions.

The results:

• Significantly reduced yearly communication expenses compared to maintaining legacy copper lines.
• Enhanced, uninterrupted communication for emergency elevator calls, improving passenger safety.
• Increased compliance, including two-way communication requirements under ASME and NFPA standards.
• Minimal installation disruption — the appliance connected directly to the existing RJ-11 FXO ports with no major infrastructure changes and no downtime.

Where this solution is already deployed

• Commercial buildings — reliable communication for high-traffic elevators in office towers.
• Residential complexes — continuous elevator communication service in apartment buildings, supporting resident safety.
• Public facilities — dependable communication for elevators in hospitals, schools, and government buildings, where compliance scrutiny is highest.

Get the flyer

Want a one-page overview to share with your building ops or compliance team? Download the Elevator Emergency Communication flyer (PDF).

For a deeper look at how copper retirement specifically affects elevator lines, see our elevator communication modernization industry guide, Elevator Emergency Phones After Copper, and Keeping Elevator Emergency Phones Online After Copper. For the compliance backing, see DataRemote’s California State Fire Marshal listing and the full certification list in the Trust Center.

Elevate your building’s safety and compliance today

Reliable, compliant communication is non-negotiable for elevator systems, where safety and operational continuity are paramount. DataRemote’s POTS IN A BOX® delivers uninterrupted service, meets life-safety code requirements, and reduces costs versus legacy copper — all without replacing the elevator phone your passengers already know how to use. Talk to our team about a deployment sized to your building or portfolio.