Facility and Building Alarm Line Replacement
Temperature, water, generator, and environmental alarms all report over analog lines. Keep every facility alarm communicating after the copper retires.
Behind the scenes, a building runs on alarms most people never see: freezer and cold-storage temperature monitors, water and flood sensors, sump-pump alarms, generator and fuel monitoring, and HVAC and environmental alerts. Most of them report out over an analog POTS line. POTS lines, the analog phone lines buildings have run on for decades, are being retired. AT&T, Verizon, Lumen, and Frontier have all filed discontinuance notices with the FCC, and in March 2025 the FCC cut the required customer notice period from 180 days to 90. A carrier can now give your building three months of warning before the copper goes dark.
When a facility alarm line goes dead, the monitoring stops silently. The freezer fails over a weekend, the basement floods overnight, and nobody is alerted. We replace those lines with dual-pathway POTS-in-a-Box hardware so every alarm keeps reporting.
The life-safety solution we install carries the approvals inspectors and insurers look for
The Facility Alarms That Depend on a POTS Line
- Temperature and cold-storage monitoring. Freezers, coolers, labs, and pharmacies where a failure ruins inventory.
- Water, flood, and sump alarms. Basements, mechanical rooms, and data closets.
- Generator and fuel monitoring. Standby power that has to be ready.
- HVAC and environmental alerts. Server rooms and process spaces with tight tolerances.
A Silent Failure Is the Expensive One
The danger with a facility alarm is not a false alarm. It is the alarm that never fires because the line behind it is dead. Lost inventory, water damage, and a generator that failed its one job all trace back to a monitoring path nobody knew was gone. A dual-pathway device with supervised connectivity removes that blind spot.
Dual-Pathway, Not Just Cellular
Every device we install runs dual-pathway. The line travels over cellular and over your building internet at the same time, and it fails over automatically the instant either path drops. Cellular-only replacements lose the line in a dead zone or a tower outage. Internet-only setups lose it whenever the building connection blips. Two independent paths is what keeps the line up when it is needed most.
It Costs Less Than the Copper You Have Now
Carriers now charge $80 to $280 per copper line every month, and the price climbs every year as they push the last customers off the network. Our POTS replacement starts under $30 per line per month. For most buildings the replacement costs less than the copper line it retires, and it is a more reliable line.
Install Process
Most facility alarm lines are a single-visit install:
- Site visit, about 30 minutes. We identify every line, check signal on both pathways, and confirm the power source.
- Number port. We port your existing numbers from the current carrier. It takes about two weeks and runs in parallel with the install.
- Install the POTS-in-a-Box device. It plugs in where the copper line was. The equipment behind it does not change.
- Test every line. We confirm a real dial tone and that the connected equipment recognizes the line.
- Decommission the carrier line. We coordinate the cancellation so you never double-pay.
Get a Free Facility Alarm Line Audit
Tell us roughly how many alarm and monitoring lines are in your buildings. We audit the real count, map each to its equipment, and send a fixed-price migration plan.