In the evolving world of POTS replacement, reliability during power outages isn’t optional—it’s essential. Emergency phones, alarm panels, and life-safety systems can’t simply “wait” for the lights to come back on. That’s why the PR12 was engineered with TRU24™, Vola’s true 24-hour DC-free operation feature. It delivers full voice service for an entire day without external power—something no other product in its class can match.

 PR12

Small Battery, Big Endurance

Most devices that promise long backup times rely on large, heavy batteries that increase installation cost and complexity. The PR12 takes a different approach. It achieves TRU24™ performance with a remarkably compact, replaceable battery module.

This isn’t just a clever trick—it’s the result of ultra-low-power standby engineering. The PR12 minimizes energy consumption without sacrificing call quality or reliability. This means every milliamp-hour of battery capacity is used efficiently, enabling full-day operation from a battery so small it can fit in the palm of your hand.

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Why Size Matters

A smaller battery offers more than convenience—it expands deployment possibilities: Tight spaces – Easily fits inside elevator machine rooms, alarm cabinets, or wall enclosures. Lightweight installs – Simplifies mounting and reduces strain on surfaces. Lower costs – Replacement batteries are affordable and easy to stock.

Engineered for Real-World Reliability

Many backup claims in the market come with fine print: standby-only operation, reduced features, or “up to” performance that rarely matches field results. TRU24™ is different—it’s been tested under actual working conditions to deliver continuous service for a full 24 hours, ensuring that critical systems remain active during extended outages.

The PR12 also supports dual SIM slots for network redundancy, ensuring that connectivity isn’t lost even if one carrier is unavailable. Combined with TRU24™, this creates a robust safety net for mission-critical voice applications.

 PR12

No Equal in the Market

While there are POTS replacement devices with battery backup, none combine small size, true 24-hour runtime, and replaceable battery design like the PR12. It stands alone as a solution that is both compact and capable, addressing the real needs of MSPs, facility managers, and safety system integrators.

Built for the Future

The PR12 isn’t just about surviving outages—it’s about delivering reliable, low-maintenance service for years to come. With VolaCloud integration, MSPs can remotely monitor battery health, device status, and network connectivity without rolling a truck. This combination of efficient hardware and intelligent cloud management makes the PR12 a future-proof choice for large-scale deployments.

The PR12 with TRU24™ changes the game for battery-powered POTS replacement. It’s proof that you don’t need a big battery to deliver big reliability—just smart engineering, low-power design, and a focus on what matters most: keeping your line alive when it matters most.

Built for the Future