The short answer
Phone carriers are retiring the old copper lines (POTS, or "plain old telephone service") that many buildings still use for elevator phones, fire alarm panel communicators, fax machines, emergency call boxes and point-of-sale terminals. If your bill still shows analog lines, expect higher rates, slower repairs, or a notice that the line is going away. The fix is not to rip everything out at once. It is to inventory every line, figure out what each one actually does, and move each to a replacement that fits that device, usually a cellular or managed POTS-replacement unit, a VoIP adapter, or a cloud phone service.
Why POTS lines are going away
In 2019 the FCC issued an order (often referred to as FCC 19-72) that relieved the large carriers of the requirement to keep selling and maintaining legacy copper phone service. Since then, carriers have been raising prices on remaining copper lines, declining new orders and sending retirement notices market by market. The copper itself is aging, technicians who repair it are fewer, and the carriers would rather move customers to fiber, cable or wireless service.
For most businesses the regular desk phones moved to VoIP years ago. What is left on copper is the quiet stuff nobody thinks about until it stops working.
The lines people forget about
Before you can plan anything, you need to know what is plugged into each copper pair. In commercial buildings we routinely find lines feeding:
- Elevator emergency phones. Each cab typically has a two-way communication device that must reach a monitored location. These are inspected, and a dead line can fail an elevator inspection.
- Fire alarm panel communicators. Many older panels report to the monitoring center over two phone lines. Changes here must go through your fire alarm vendor and the local fire marshal (the authority having jurisdiction), not just the phone company.
- Fax machines. Medical, legal and insurance offices still rely on fax, and fax over plain VoIP is often unreliable.
- Emergency call boxes and gate or door entry phones. Parking lots, gates, lobby call panels and areas of rescue assistance.
- Point-of-sale and credit card terminals that still dial out on older equipment.
- Building automation and utility dial-ups, such as boiler or generator monitoring and older meter readers.
- A "main number" line that nobody realizes is still analog.
Step 1: Build a line inventory
Start with the phone bill and list every number and circuit ID. Then trace each one to a device. In practice that means walking the building with someone who can read the demarc (where the carrier's lines enter) and the punch-down blocks in the phone room, and test each pair. For every line, write down:
- The phone number and circuit ID
- Where it terminates and what device it feeds
- Who owns or services that device (elevator company, fire alarm vendor, fax user, property manager)
- Whether the device needs to dial out, receive calls, or both
- Whether it has to keep working during a power outage, and for how long
It is common to find lines that feed nothing at all. Canceling those is the fastest savings in the whole project.
Step 2: Match each line to the right replacement
There is no single answer for every device. The main options:
- Managed POTS-replacement units (cellular). A small box with a cellular radio and battery backup presents a normal analog dial tone to the device. These are built for elevators, fire alarm communicators, call boxes and fax, and are usually the first choice for life-safety lines because they do not depend on your office network or internet service.
- Cloud phone service such as Verizon One Talk. Good for main numbers, desk phones and general business calling.
- VoIP analog adapters (ATAs). Inexpensive, but they depend on your internet circuit and network power. Fine for a break room phone, often a poor fit for fax and generally not appropriate for life-safety devices.
- Upgrade the device instead. Some newer fire alarm communicators and elevator phones can report over cellular or IP natively. If the equipment is already due for replacement, this can be cleaner than adapting the old line.
- Eliminate it. Moving fax to an online fax service, or retiring a dial-up that no longer serves a purpose.
Step 3: Check signal, power and placement
Cellular replacements only work as well as the signal where they are mounted. Elevator machine rooms, basements and phone rooms in older concrete or brick buildings are often the worst spots in the building. Before installing, test signal at the exact mounting location, and plan for an external antenna or a different mounting point if needed. Also confirm:
- Battery backup runtime meets what the device and your code official require
- The unit is plugged into a labeled outlet where it will not get unplugged by accident
- Low-voltage wiring from the unit to the device is clean, labeled and documented
- The unit sends alerts if it loses power or signal, and someone actually receives them
Step 4: Coordinate the cutover
Life-safety lines need the right people involved. For elevator phones, coordinate with the elevator service company so the device is reprogrammed and tested end to end. For fire alarm communicators, the fire alarm vendor handles panel programming and the monitoring center confirms signals are received; some jurisdictions require a permit or inspection for the change. Schedule cutovers so the old copper line stays active until the new path is tested, then cancel the copper line and keep the confirmation.
For fax, send and receive test pages, including multi-page documents, before cancelling the old line. For main numbers, port the number rather than getting a new one.
What it costs depends on
Pricing varies too much to quote a single number, but the main factors are:
- How many lines you have and how many are actually in use
- How many are life-safety lines that need managed cellular units with battery backup
- Cellular signal at each device location and whether antennas are needed
- Wiring work needed between the new equipment and each device
- Monthly service for each replacement compared to what you pay for copper today
Many businesses find that removing unused lines and moving the rest to modern service lowers the monthly bill, but the inventory is what tells you for sure.
Common mistakes to avoid
- Waiting for a disconnect notice, then rushing the elevator and fire alarm lines.
- Moving life-safety devices onto an internet-dependent adapter with no backup power.
- Cancelling copper before the new path is tested end to end.
- Forgetting to update the elevator company, fire alarm vendor or monitoring center with new numbers.
- Not labeling anything, so the next person has to trace every line again.
Get help with your POTS lines
Strategix inventories copper lines, tests cellular signal and installs POTS-replacement equipment for businesses across Louisville, Lexington, Southern Indiana, Cincinnati/NKY and Indianapolis. We coordinate with your elevator and fire alarm vendors so each line is moved safely. Learn more about our POTS line replacement and Verizon One Talk business phone services, or request a quote.