POTS Replacement for Fire Alarm Panels
AT&T's copper retirement is disconnecting the POTS lines that fire alarm panels use to dial out to monitoring stations. Here's what you need to know — and the UL-listed replacements that keep you compliant.
Check Your Fire Alarm Lines Free →The Compliance Risk
NFPA 72 (National Fire Alarm and Signaling Code) requires that fire alarm panels maintain a supervised, listed communication path to a central monitoring station. When AT&T retires the copper wire center serving your building, that path goes dead — putting your building out of code and potentially invalidating your insurance.
The Solution
Cellular POTS replacers plug directly into the existing RJ-11 jack on your fire alarm panel and connect to the monitoring station over cellular. UL-listed models satisfy NFPA 72 requirements. No rewiring, no panel reprogramming — the panel sees it as a standard phone line.
How Cellular POTS Replacement Works for Fire Alarms
UL-Listed POTS Replacement Options for Fire Alarms
Ooma AirDial
Ooma
Purpose-built cellular POTS replacement. UL-listed for NFPA 72 fire alarm monitoring and ASME A17.1 elevator emergency phones. Works exactly like a POTS line — no rewiring required.
COEO POTS Replacement
COEO
Enterprise-grade POTS replacement supporting up to 8 lines per device. UL-listed and purpose-built for businesses needing reliable multi-line coverage with full day battery backup.
For2Fi POTS Replacement
For2Fi
Flexible POTS replacement solution covering 1 to 1,000+ lines. Hardware and installation are included in the per-line price — no upfront NRC or installation fees. UL-listed with 24-hour battery backup.
MetTel POTS Transformation
MetTel
Enterprise and federal-grade POTS replacement (PIAB hardware) built on MetTel's private, geographically redundant Smart Network. NFPA 72, UL & ASME A17.1 certified — recognized as an MFVN by the NYC Fire Department and CA State Fire Marshal — with nationwide turnkey installation and 24/7/365 managed monitoring.
Fire Alarm POTS Replacement FAQ
Does my POTS replacement for a fire alarm need to be UL-listed?
Yes. NFPA 72 (National Fire Alarm and Signaling Code) requires that the transmission path from a fire alarm panel to the monitoring central station use listed equipment. Cellular POTS replacers must carry a UL listing specifically for fire alarm use (UL 2050 / UL 60950 depending on configuration). Ooma AirDial and COEO are UL-listed for this purpose.
Can I use a regular VoIP adapter on my fire alarm panel?
Generally no. Standard VoIP adapters (ATAs) are not UL-listed for life-safety applications and may fail NFPA 72 inspections. Cellular POTS replacers designed for fire alarm use provide the required supervision and signal quality. Check with your AHJ (authority having jurisdiction) before installation.
What happens to my fire alarm monitoring when AT&T retires copper?
If your fire alarm panel dials out over a POTS line and that line is on a retiring wire center, the panel loses its monitored connection when AT&T terminates service. This puts the building out of compliance with NFPA 72 and your insurance policy. You must replace the POTS line before the retirement date.
How do I find out if my fire alarm panel's POTS line is at risk?
Upload your phone bill at POTSAudit.com. We cross-reference each line against AT&T's published wire center retirement schedule and flag any lines in retiring wire centers. You'll get a line-by-line report with retirement dates and recommended replacement options.
How long does it take to install a cellular POTS replacement on a fire alarm?
Most cellular POTS replacers install in under an hour — they plug into the existing RJ-11 jack on the fire panel with no rewiring required. The device communicates over cellular and presents a standard analog phone interface to the panel. Your alarm technician can typically handle installation during a routine service visit.
Find Out If Your Fire Alarm Lines Are at Risk
Upload your phone bill and we'll tell you which lines are in AT&T wire centers scheduled for retirement — before your monitoring goes dark.
Free Audit — No Account Needed