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Independent technology advisory · Seattle, WAQuestions? (206) 380-2146
Services / POTS Line Replacement
Voice · The copper sunset

Copper lines are going away. Your alarms can’t.

Carriers across the U.S. are decommissioning the copper network behind traditional phone lines (POTS). Many of those lines quietly run fire panels, elevator phones, and card readers. We find every line, map what it powers, and replace it with compliant modern service before it fails.

What’s changing

Copper isn’t just aging. It’s being retired.

What changed

The rules loosened in 2019

An FCC order (FCC 19-72) eased the obligations that kept carriers maintaining and reselling legacy copper service.

What carriers did

Investment moved on

Carriers are shifting money to fiber, wireless, and IP networks. Copper repairs are slower, and the technicians who know it are retiring.

What it means for you

The cost and risk shift to you

Monthly rates keep climbing, repair tickets linger, and some businesses are paying for lines that no longer work.

Why it matters

It’s not about the phone on the desk.

The riskiest copper lines are the ones nobody thinks about. When the copper goes, so do the systems connected to it, unless there’s a plan. An alarm that can’t call out, or an elevator phone that goes silent, is a safety and liability problem.

40–60%Average savings businesses see on their line costs after switching, as rates on remaining copper keep climbing.Source: Telarus, “Copper Sunset” POTS replacement guide, Oct 2025

Systems often still on copper

  • Fire and burglar alarm panels
  • Elevator emergency phones
  • Point-of-sale and card readers
  • Fax machines
  • Gate, door entry, and building access
  • Modems, ATMs, and monitoring equipment
Your options

There’s no one-size-fits-all replacement.

Modern POTS replacements run over cellular, internet, or cloud networks and still work with your existing analog equipment. The right choice depends on what each line does, your building, and your budget.

Wireless (LTE/5G) POTS

A managed cellular device, often dual-carrier with battery backup, that plugs into your existing panels and phones.

Best for: Alarms, elevators, life-safety lines

Cloud voice & VoIP

Move lines to a cloud phone system, or use an adapter over your internet connection. Keep your numbers.

Best for: Main lines, general phones, fax

Cable & broadband voice

Battery-backed voice service delivered over your cable or broadband provider.

Best for: Cost-effective sites with good coverage

eFax

Replace analog fax lines with secure cloud fax that works from email or an app.

Best for: Offices, medical, legal

Consolidate first

Move existing copper lines to one bill for visibility, then retire what’s unused and migrate the rest on your schedule.

Best for: Multi-site businesses
Buyer’s checklist

Questions to ask any POTS vendor.

Not every “POTS replacement” is built for life-safety. These questions separate the compliant options from the shortcuts. We ask every one of them for you.

  1. 01Is it NFPA 72 compliant and a certified Managed Facilities-Based Voice Network (MFVN)? Can you show the documentation?
  2. 02For elevators, does it meet ASME A17.1 requirements?
  3. 03How many hours of battery backup does it have, and does that satisfy our fire marshal?
  4. 04Does it fail over between two carriers, or between cellular and wired?
  5. 05For life-safety lines, does call switching happen on-site, or does it depend on the cloud?
  6. 06Who monitors the device 24/7, and who gets alerted when something fails?
  7. 07Who coordinates with our alarm company, elevator vendor, and local inspectors?
  8. 08Is installation included, and do we get test results when it’s done?
How we handle it

A calm plan for a forced change.

  1. 01

    Find every line

    We audit your bills and sites to inventory every copper line, including the ones nobody remembers.

  2. 02

    Map what each one does

    Alarm, elevator, fax, card reader, or nothing at all. We label every line.

  3. 03

    Cut and choose

    Unused lines get cancelled. Each remaining line gets the right compliant replacement.

  4. 04

    Install, test, then disconnect

    We coordinate installs with your vendors, verify everything works, and only then retire the copper.

Providers we compare

The whole market, not one carrier.

We compare leading POTS replacement providers side by side and recommend what fits each line, not what one vendor is pushing.

AireSpringBCNDynalinkEpic iOFor2FiFusion ConnectGranite EPIKLingoLumenMetTelNHCOoma AirDialSpectrotelvComVerizon
Questions

Common questions.

Want the full Copper Sunset guide?

A detailed guide to what’s happening with POTS and how the leading replacement providers compare.

Request a copy →
Do I really have to replace my POTS lines?

Carriers are no longer required to keep supporting copper, so prices rise and reliability drops over time. Planning now avoids a rushed, forced migration later.

Will my fire alarm or elevator still pass inspection?

It can, if the replacement is built for life-safety. We only recommend options with the right certifications for each line, and we coordinate with your alarm and elevator vendors.

Can we keep our phone numbers?

Yes. Numbers are ported to the new service as part of the move.

Will it cost more?

Usually less. Copper rates have climbed since deregulation, and many businesses pay less after switching, especially once unused lines are cancelled.

How long does it take?

A single site can move in a few weeks. Larger, multi-site rollouts are phased so nothing goes dark in between.

Also from Modselect

Find every copper line before it fails.

Send us a recent phone bill. We’ll identify every POTS line and show you what replacing them looks like.

Book a free review →