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Industry Today | Digitizing Telecoms for the Future

Adapted from Industry Today

DataRemote 8 min read
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Direct Answer

The FCC counted 78 million wireline retail voice connections in service as of June 2025 — 53 million of them business connections, against 26 million residential — and the systems riding on them (point-of-sale, elevator phones, fire alarm panels, first responder lines) are increasingly at risk as carriers retire copper infrastructure and maintenance costs climb. POTS digitization, using a specialized adapter that translates analog signals to digital over cellular networks, lets businesses preserve existing equipment while gaining dual-SIM failover and modern reliability.

As industries rely heavily on telecoms, digitizing old telephone lines is becoming a business imperative for manufacturing, retail, transportation, and other critical sectors.

Key takeaways

  • The FCC counted 78 million U.S. wireline retail voice connections as of June 2025: 53 million business (67%) and 26 million residential (33%). Around 15 million were still traditional switched copper lines.
  • Copper network maintenance costs have grown up to ten times traditional rates as the infrastructure deteriorates.
  • Critical systems — POS, elevator phones, fire alarms, burglar alarms, fax lines, first responder communication — still commonly depend on legacy lines.
  • Public Utilities Commissions in multiple states have launched investigations into carrier service reliability complaints.
  • Dual-SIM POTS replacement adds cellular failover protection specifically valuable for life-safety and remote-location applications.

Why legacy copper landlines are becoming a business risk

Most remaining landlines are business lines 78 million U.S. wireline retail voice connections, June 2025 — two views of the same total Millions of connections By customer type 26M 33% Residential 53M 67% Business By technology 15M 19% Traditional copper (POTS) 63M 81% Interconnected VoIP
Source: FCC, Voice Telephone Services: Status as of June 30, 2025 (DOC-421558A1). The FCC rounds each component independently, so the residential and business figures sum to 79 million against a reported total of 78 million. Interconnected VoIP is derived as the balance of the reported total after traditional switched access lines.

The split matters more than the total. Residential copper gets the press coverage, but two-thirds of what remains is business connections — and business lines are where the analog endpoints live: fire panels, elevator phones, fax machines, payment terminals and telemetry. The 15 million connections still riding traditional switched copper are the ones with a retirement date attached.

In today’s digital age, modernizing telecommunications is a global necessity. The issue of neglecting copper landlines recently reached a boiling point, with major telecom carriers being accused of failing to provide reliable service to customers.

Public Utilities Commissions in various states have launched investigations after receiving numerous complaints from residents and businesses about dropped calls, slow repairs during outages, and other service reliability issues.

The copper network problem extends beyond telecom

This issue isn’t confined to specific carriers or states — it has implications far beyond the telecom industry, touching sectors like manufacturing, retail, and transportation.

With 78 million wireline retail voice connections still in service in the U.S. alone — two-thirds of them business connections — there likely isn’t an industry entirely immune from the potential impact of aging copper infrastructure.

Why telecom providers are retiring copper lines

Major telecom providers worldwide have been discreetly retiring their physical copper lines over the past few years, transitioning toward a new digital era. This transformation benefits both carriers and the customers they serve: copper networks are expensive to maintain and increasingly unreliable. Their gradual deterioration has accelerated over the past decade, while maintenance costs have grown up to ten times traditional rates — making legacy copper lines increasingly untenable.

Aging telecom infrastructure creates safety and compliance concerns

The dangers of patching old telecom infrastructure resemble those posed by neglecting critical physical infrastructure like roads, bridges, and tunnels.

Despite being the network connecting many alarm systems, elevator phones, and first responder communication lines, copper wire infrastructure has been overlooked in recent federal infrastructure investment. This neglect could create serious consequences for businesses, property owners, municipalities, and public safety organizations.

Critical systems still dependent on legacy lines

System typeWhy continuity matters
Cash registers and point-of-sale systemsRevenue-critical; downtime directly affects the bottom line
Elevator emergency phonesCode-mandated life-safety communication
Fire alarm panelsLife-safety monitoring and first-responder notification
Burglar alarm systemsSecurity monitoring and signal transmission
Fax linesStill required in healthcare, legal, and government workflows
First responder communication systemsEmergency coordination that can’t tolerate gaps

Why POTS replacement is urgent

The urgency to digitize Plain Old Telephone Service (POTS) can’t be overstated. This transition — also known as POTS transformation or POTS replacement — is essential for maintaining uninterrupted critical communications.

Reliable telecommunications support business continuity, security, human safety, and regulatory compliance. Beyond reducing telecom expenses, digitizing copper landlines helps build resilience into the aging lifelines that still serve millions of people and businesses. Public safety organizations, including the New York Fire Department, have expressed support for this transformation.

How analog lines can be digitized

The technology behind this transformation uses a specialized adapter to translate analog signals into digital signals that communicate over major cellular networks. This approach lets businesses preserve existing analog equipment while moving away from aging copper infrastructure — offering primary connectivity for voice and data, plus wireless backup to help maintain business continuity during network and power outages.

Cellular failover adds an extra layer of protection

Dual-SIM functionality provides added failover protection to help ensure emergency lines remain connected during outages — especially important for life-safety applications, remote locations, retail sites, and facilities where downtime creates operational, financial, or regulatory risk. DataRemote’s POTS IN A BOX® is built around this same dual-SIM, multi-carrier approach.

Turning “we should plan for this” into a plan

The gap between recognizing the risk and acting on it is usually a scoping problem: nobody owns the inventory, so nobody can size the project. Four steps close it.

1. Establish what is actually connected. Reconcile three independent sources, because none is complete on its own. Carrier circuit lists describe billing arrangements rather than physical circuits. A physical walk of each site — tracing each pair from the demarcation point and labeling both ends — finds the equipment nobody documented. Departmental knowledge supplies purpose: facilities, security, IT and finance each know about circuits the others do not.

2. Classify by consequence, not by department. For each circuit, record what breaks and who notices. This is what separates a line whose failure produces a phone call within minutes from one whose failure produces an estimated bill a month later. The machine-to-machine circuits are the ones that fail invisibly, and they are the ones most often discovered late.

3. Evaluate replacements against what the line actually provided. Reading POTS as a specification rather than a service makes this concrete: line power, loop current and ring voltage within defined ranges, disconnect supervision, predictable timing for in-band signaling, and a dedicated circuit. Each is something a replacement either supplies or does not, per endpoint.

4. Sequence and pilot. Do one site end-to-end before scaling. The first site is where the configuration, the test procedure and the documentation packet get worked out, and doing that once carefully is faster than doing it fifty times approximately.

The endpoints that make this harder than a phone migration

If the only thing on copper were telephones, this would be a procurement exercise. What makes it an engineering project is the equipment that was never thought of as telecom.

EndpointWhy replacement is not straightforward
Fire and burglar panelsSignal formats and supervision intervals must match the receiving station; the path is code-governed and inspected
Elevator phonesOften ring-down circuits with a fixed far end; inspected by a party who can remove the car from service
Fax machinesDepend on precise in-band timing; negotiate and fail in ways voice does not
POS and ATM linesFailure stops transactions immediately; may sit inside a payments compliance scope
Telemetry and meteringFail silently — the symptom is a data gap noticed a billing cycle later
Refuge and call stationsFrequently absent from telecom records entirely; life-safety consequence

The common thread is that each has its own pass criterion. A migration verified once, on a telephone, and generalized across the site is the single most reliable way to produce a project that passes internally and fails at inspection.

What “digitized” should mean operationally

Digitizing a line is not finished when the dial tone returns. The property worth buying is visibility, and it is the one copper never offered.

An analog circuit gave no indication of its own health. Nobody knew a line was dead until someone tried to use it — which, for an alarm panel or a telemetry unit, could be months. A managed replacement can report line status continuously, raise an alert when a path fails, and be provisioned and updated remotely across a portfolio rather than site by site.

That changes the operating model more than the technology does. It moves analog circuits from “assumed working” to “monitored,” and it makes a multi-site estate manageable by exception rather than by inspection. For the specific functions worth naming when comparing offers — provisioning, monitoring, firmware, carrier relationship, support scope, replacement — see managed cellular.

Start planning your POTS replacement strategy

The future of telecom is digital. It’s time to stop delaying and paying more to maintain obsolete technology — copper landlines are becoming more expensive, less reliable, and harder to support.

Organizations that still rely on copper landlines should evaluate which systems remain connected to legacy telephone infrastructure and begin planning a transition strategy. By digitizing telecom lines now, businesses can reduce costs, improve reliability, strengthen continuity planning, and support critical communications well into the future. See DataRemote’s POTS line replacement solution or talk to our team to start your migration plan.

Related reading: For critical-infrastructure use cases, see how POTS IN A BOX® supports airport navigation lighting and cell and radio tower connectivity.

Frequently Asked Questions

The FCC counted 78 million wireline retail voice connections in the U.S. as of June 2025, of which 53 million (67%) were business connections and 26 million (33%) residential. Roughly 15 million of the total were still traditional switched copper access lines, so few industries are entirely insulated from aging copper infrastructure risk.

Copper networks are expensive to maintain and increasingly unreliable — maintenance costs have grown up to ten times traditional rates as the physical network deteriorates, making legacy copper lines increasingly untenable for carriers to support.

Cash registers and point-of-sale systems, elevator emergency phones, fire alarm panels, burglar alarm systems, fax lines, and first responder communication systems are among the critical systems still commonly dependent on legacy lines.

A specialized adapter translates analog signals into digital signals that communicate over major cellular networks, letting businesses preserve their existing analog equipment while moving off aging copper infrastructure — with wireless backup to help maintain continuity during outages.

Ready to start your POTS replacement strategy?

Evaluate which of your systems still depend on legacy copper and build a migration plan with DataRemote.

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