POTS Line Replacement
POTS Replacement Solutions for Multi-Location Organizations: Cost per Line, Options by Line Type, and a Portfolio Cost Calculator
AT&T can start discontinuing copper service November 15, 2026 in parts of 18 states, and every fire panel and elevator on it needs a replacement the inspector accepts. Send us the line list: providers that fit price every site at once, we negotiate, and it costs you nothing.
Price My POTS ReplacementWe work with organizations with multiple locations or 20 or more lines: property managers, retail and restaurant groups, bank and credit union branches, school districts, campuses, health systems and public agencies. Three buildings with 25 lines qualifies, and so does a 300-site network. The problem is the same at both sizes: carrier notices arriving site by site, contracts ending on different dates, and a code sign-off for every fire panel and elevator.
Sources: FCC, Voice Telephone Services: Status as of June 30, 2025 (released May 2026); Broadband Breakfast, January 13, 2026 (AT&T states and date); FCC Report and Order FCC 26-19 (automatic grant); price range from a published guide (source: AeroCom, August 6, 2026).
POTS Line Replacement Cost Calculator
Enter your locations and the average lines of each kind per location; results update as you type. Put lines you cannot identify under voice.
What your copper lines cost now, and what replacement could cost
MCA calculation at the published replacement range of $40 to $60 per line per month. Planning figures, not quotes.
150 of these lines run fire alarms or elevators. Life-safety lines often need dual-path service, battery backup and monitoring, so expect them at the upper end of the range or above.
Context, not a forecast: after North Carolina's AT&T contract ended, its state IT department published a sample tariff rate of $2,460.12 a month for one POTS line (sample rates may not reflect final pricing and exclude surcharges and fees). At that rate, these 300 lines would be $738,036 a month (MCA calculation). It shows what is at stake when a contract lapses, not what your bill will be.
What Staying on Copper Can Cost: North Carolina's Published Rates
AT&T did not renew North Carolina's TDM contract, which expired December 31, 2025. The sample tariff rates published by North Carolina's state IT department show what one POTS line can cost once a contract no longer holds the price.
Source: North Carolina Department of Information Technology, AT&T Sample Tariff Rates, effective January 1, 2026. The page notes the sample rates may not reflect final pricing; monthly prices exclude regulatory surcharges and fees, and site examples exclude taxes and fees. Replacement range from a published 2026 price guide (source: AeroCom, August 6, 2026); the 5-line replacement figure is an MCA calculation (5 x $40 to $60). Figures as of October 2026. Free to cite with a link to this page.
Call one provider and you negotiate alone: once you ask for pricing directly, it usually will not register an advisor on the deal. We put every line type and every site in front of the providers that fit, at the same time.
Line fees, appliances, installation, battery, monitoring and term side by side, not a headline price.
The provider you choose pays us, so it costs you nothing. If your carrier's own replacement is the right answer for some sites, we will say so.
What Is a POTS Line?
A POTS line (plain old telephone service) is an analog phone line delivered over copper wire from the carrier's central office. The carrier also sends power down the same pair of wires, which is why a copper line keeps working when the building loses power, and why so much safety equipment was built to use one. In practice, POTS line meaning has widened to any analog line a device dials out on.
Most of these lines now serve machines, not conversations: a fire panel calling its monitoring center, an elevator phone calling for help, an ATM dialing its network. Those devices expect a dial tone and analog signals, so replacing the line takes more than moving phones to VoIP.
Why are copper phone lines being retired?
Carriers want out of costly copper networks, and federal rules now make that faster. AT&T has about 4,600 copper wire centers, says it spends $6 billion a year maintaining them, and plans to retire the large majority of its copper outside California by the end of 2029 (Broadband Breakfast). On March 26, 2026 the FCC adopted Report and Order FCC 26-19, which ended the filing requirements in its network change disclosure rules and applies a 31-day automatic grant to every carrier's application to discontinue a service (FCC press release).
- AT&T: approved January 12, 2026 for wire centers serving about 90,000 customers in 18 states, with copper service able to end starting November 15, 2026. That is when shutoffs can begin, not one cutoff day.
- Verizon: its application for eight former Frontier states was granted automatically on August 21, 2026 (Broadband Breakfast). Its August 10, 2026 request for nine more states is still under FCC review, not a final decision (Fierce Network).
- Lumen (CenturyLink): closed new copper POTS orders across its legacy territory in 2025 and publishes rolling copper retirement notices.
- Notice time: industry analyses of the order put the gap between a customer notice and disconnection at as little as 90 days. For a portfolio, that is less time than a rollout across dozens of buildings takes.
Lumen (source: DataRemote Copper Retirement Bulletin); notice time (source: vCom, July 16, 2026, linked above). The copper retirement tracker lists every approved state and the key dates.
Which Lines Need Replacing, and What Replaces Each
Every line type has its own replacement and its own sign-off. This is the table we start a line inventory from.
| Line type | Why it still needs a line | Typical replacement | Code, rule or sign-off | Deeper guide |
|---|---|---|---|---|
| Fire alarm panelLife safety | The panel's communicator (a DACT) traditionally reports alarms to the monitoring center over two POTS lines | Cellular or dual-path (cellular plus IP) fire alarm communicator | NFPA 72; accepted by the fire marshal (the AHJ) and the monitoring company. VoIP is not recommended for fire alarm signals (Minnesota State Fire Marshal) | Fire alarm phone line replacement |
| Elevator emergency phoneLife safety | Two-way voice from the car to a location staffed by authorized personnel | Cellular elevator phone service or a POTS appliance with battery backup | ASME A17.1 section 2.27.1.1: at least 4 hours of auxiliary power, daily line verification (requirements summary); elevator inspector | Elevator phone line replacement |
| Area of refuge and emergency call stationsLife safety | Two-way communication to a fire command center or approved central point, with automatic dial-out when that point is not staffed | Cellular or POTS appliance service, as with elevator phones | Building code (NC Building Code 1009.8 and NFPA 72 24.5, per North Carolina's state construction office); local AHJ | Schools, hospitals and public buildings |
| Alarm panelBurglar, holdup, vault | The panel dials the monitoring center to report events | Cellular alarm communicator, often with an IP path | The monitoring company's requirements and account settings | Retail and restaurants; banks and credit unions |
| Fax machine | Fax sends analog tones that ordinary VoIP compression can garble | Fax over IP (T.38) through an adapter, a fax-capable POTS appliance port, or cloud fax | Your records and compliance team | Fax over IP, below |
| Gate or call box | The call box dials a resident or the office to open the gate | Cellular call box or a cellular module on the existing box | Property team; confirm any local fire department access arrangements | Property management |
| ATM or payment terminalAlso modem and SCADA lines | Older units dial their network over a modem | Cellular or IP connection, or an appliance that carries modem traffic | The ATM network or card processor must support the new connection | Banks and credit unions |
| Business voice line | Main numbers, back-office phones, lines kept "just in case" | Hosted VoIP, or cellular voice through a POTS appliance | 911 rules for multi-line phone systems (Kari's Law and RAY BAUM'S Act) | Business landline service, below |
Sources linked in the table. Area of refuge: North Carolina State Construction Office (December 15, 2022). Typical replacements are general categories; the provider's engineers confirm what fits each site.
How Much Does a POTS Line Cost per Month?
A copper POTS line costs whatever your contract says until it ends: $34.42 a month under North Carolina's state contract, and often over $100 a month with surcharges and fees, according to a published 2026 price guide. Your own invoice is the figure that counts.
POTS replacement cost is easier to pin down. The same guide puts POTS over cellular at about $40 to $60 per analog line per month; some providers charge a flat $60. On appliance-based services the first line at a site is about $60 and each additional line on the same appliance about $40, and one appliance can carry up to four lines. Some services include up to 24 hours of battery backup. The more lines a site has, the lower the average price per line.
MCA calculation from published appliance pricing: first line about $60, additional lines on the same appliance about $40, up to four lines per appliance (source: AeroCom, August 6, 2026). Life-safety lines that need dual-path service or extra battery can price higher. Figures as of October 2026. Free to cite with a link to this page.
What goes into a real POTS replacement cost
Providers lead with the price per line. Two quotes with the same headline price can be far apart once these items are added.
| Cost item | What to check | Why it matters at portfolio scale |
|---|---|---|
| Monthly line feePer line or per appliance | Whether the first line on each appliance costs more, and the price at renewal | Across 300 lines, $10 a line is $36,000 a year (MCA calculation) |
| Appliance or communicatorBought, leased or included | Who owns it at the end of the term, and who replaces a failed unit | Lines per appliance sets the appliance count, and the appliance count sets much of the bill |
| Site survey and installationOne-time, per site | Whether antennas, signal work in basements and elevator machine rooms, and rewiring are included | Install terms decide whether a 40-building rollout has one price or 40 change orders |
| Battery backupHours of standby power | Hours per line type and the battery replacement cycle | Elevator phones need at least 4 hours; shared fire alarm transmission equipment needs 24 hours of secondary power |
| Dual pathLife-safety lines | Two cellular networks, or cellular plus IP, and how each path is supervised | Fire alarm and elevator lines usually price at the upper end of the range or above |
| Monitoring and verificationPortal, alerts, line tests | Whether line monitoring and alerts are included or billed per line | Elevator lines must be verified automatically at least daily under A17.1 |
| Term, adds and removals | Term length, auto-renewal notice, and the price to add or drop a site mid-term | Portfolios buy and sell buildings; the contract should allow for it |
| Copper overlap and exit | How long you pay for both services, and any early termination on the copper contract | Disconnect orders should follow each site's cutover, not the other way around |
Battery hours: ASME A17.1 section 2.27.1.1.5 (requirements summary) for elevators; NFPA 72 as summarized by the North Carolina State Construction Office for fire alarm (8 hours only with AHJ acceptance and a risk analysis).
Send the line list before you request quotes: the providers that fit price the same scope at every site, and we negotiate. Missing details? A recent phone bill or a list of addresses is enough to start. You'll hear back within 24 hours. For organizations with multiple locations or 20 or more lines; the provider you choose pays us, so it costs you nothing.
POTS Line vs VoIP vs Cellular
VoIP is fine for conversations at staffed desks. Most POTS lines carry devices, not conversations, and that is where the three options part ways.
| Question | Copper POTS line | VoIP through an adapter | Cellular POTS replacement |
|---|---|---|---|
| How it connects | A copper pair to the carrier's central office | Your internet circuit, through an analog telephone adapter or phone system | A cellular network, often more than one, sometimes with broadband as a second path |
| In a power outage | Powered by the carrier over the line | Needs power at the modem, router and adapter | Runs on the appliance battery; some services include up to 24 hours |
| Fire alarm signals | The traditional two-line setup | Not recommended, because VoIP compresses the signal | A communication path the AHJ can accept; dual path is common |
| Elevator phones | The traditional setup | Only where it meets the A17.1 battery and daily verification rules and the inspector accepts it | A common replacement, under the same A17.1 rules |
| Fax, ATM and modem lines | Work as designed | Unreliable unless the service supports fax over IP (T.38) | Work on appliances built to carry fax and modem traffic; confirm per device |
| Who it suits | Sites where copper remains and a contract still holds the price | Voice lines at staffed desks | Life-safety and device lines that must work through a power outage |
VoIP and fire alarm signals: Minnesota State Fire Marshal. Battery hours: published 2026 price guide (source: AeroCom, linked above). Fax over IP: ITU-T Recommendation T.38.
LTE POTS Replacement and POTS-in-a-Box
LTE POTS replacement carries analog lines over a cellular network: an appliance at the site gives the existing equipment a dial tone through ordinary phone ports and sends the calls and signals over LTE. A POTS-in-a-box is that appliance. Managed POTS, also called POTS as a service, is the same idea sold per line per month, with the provider supplying, monitoring and replacing the appliance.
POTS replacement device
A multi-port appliance carrying several lines over cellular, often on more than one carrier, with battery backup and a monitoring portal. Suits sites with mixed line types.
Single-purpose communicator
A cellular or dual-path unit built for one device, usually a fire or burglar alarm panel, arranged with the alarm dealer and monitoring company.
The carrier's own replacement
For customers in its approved states, AT&T offers its own broadband-based phone service or a mobile line. It is one option, not the only one; whether it fits depends on each line type, each site and the AHJ.
Which fits depends on what each line runs, cellular coverage inside each building, and what the fire marshal and elevator inspector accept. POTS replacement providers compared sets out the main providers.
Fax, Alarm Panels and Gate Call Boxes
Fax over IP and fax without a landline
Fax without a landline has three routes: a fax-capable port on a POTS appliance, an adapter using T.38 (the ITU-T standard for fax over IP), or cloud fax that handles documents as files. Healthcare fax is covered under schools, hospitals and public buildings.
Alarm system without a landline: cellular alarm monitoring
An alarm system phone line gives way to a cellular alarm communicator on the panel, often with an IP backup path. The monitoring company reprograms the account, so the alarm dealer belongs in the schedule. Fire alarm panels have stricter rules: see fire alarm phone line replacement.
Gate call box
A dead call box line locks out visitors and deliveries. The fix is a cellular call box or a cellular module on the existing box. Communities with many gates: see property management.
Business Landline Service After Copper
Business landline replacement starts by separating conversations from machines. Lines people talk on can move to hosted VoIP. Lines that devices dial out on need POTS replacement. Mix them up and a fire panel ends up on a VoIP adapter.
Voice on your network puts more weight on it; see SASE and SD-WAN and managed firewall services. Multi-line phone systems also carry 911 obligations; the schools, hospitals and public buildings guide covers Kari's Law and RAY BAUM'S Act.
Analog telephone adapter (ATA)
An analog telephone adapter is a small box that connects an ordinary phone or fax machine to a VoIP service. It works for voice and, with T.38 support, some fax. Because it runs over VoIP on building power, it is not recommended for a fire alarm communicator, and does not suit an elevator phone without battery backup and daily line verification.
ATM, credit card terminal and modem lines
ATM phone line replacement and credit card terminal phone line replacement usually mean a cellular or IP connection the ATM network or card processor supports, or an appliance built for modem traffic. Branch networks are covered under banks and credit unions, store chains under retail and restaurants.
POTS Replacement by Industry
The line mix, sign-offs and install windows change by industry.
Property management and multifamily
Elevators, fire panels, gates, call boxes and pool phones in every building. POTS replacement for property management.
Retail and restaurants
Burglar and fire alarms, fax, legacy payment lines and back-office voice in every store. POTS replacement for retail and restaurants.
Banks and credit unions
ATM, holdup, vault and fire alarm lines in every branch. POTS replacement for banks and credit unions.
Schools, hospitals and public buildings
Fire panels and elevators in every building, blue-light phones, area of refuge, nurse call and fax. POTS replacement for schools, hospitals and public buildings.
Eight POTS Replacement Mistakes Multi-Site Organizations Make
Waiting for the carrier notice
Industry analyses of the FCC's 2026 order put notice at as little as 90 days before disconnection, arriving site by site. Surveys, permits and inspections across many buildings can take longer than that.
Asking one provider for pricing first
Once a provider has quoted you directly, it usually will not register an advisor, and you negotiate alone. The carrier's own replacement is one option, not the only one.
Counting lines from the bill, not the buildings
Invoices list lines nothing uses and miss lines billed elsewhere. Match the bill to what each line runs before anyone prices it.
Putting a fire alarm on VoIP
VoIP is not recommended for fire alarm signals because it compresses them. The path must satisfy the fire marshal and the monitoring company. See fire alarm phone line replacement.
Leaving the AHJ until the next inspection
The fire marshal and elevator inspector accept or reject the replacement at each building; North Carolina, for example, requires approval before installation on state buildings. Confirm with the AHJ first. See elevator phone line replacement.
Assuming cellular coverage
Fire panels sit in basements and elevator equipment in machine rooms. Survey the signal at each site before the price is final.
Letting a contract lapse into tariff rates
North Carolina's published sample tariff rates, charted above, show how far a line's price can move once a contract ends. Move sites while the contract still holds the price.
Buying building by building
Separate purchases mean separate appliances, portals, terms and bills. One agreement sets one price, one rollout plan and one bill.
How We Place POTS Replacement
Locations, lines per location and what each line runs. A recent phone bill or a list of addresses is enough to start.
The replacement providers that fit your line types and sites price the same scope at the same time.
Signal, wiring, battery and the code requirements for each fire panel and elevator, with the provider's team answering the technical questions.
Price per line, hardware, installation, term and renewal, in writing. The provider installs on a schedule you agree.
The provider you choose pays us, so it costs you nothing. We do not install equipment, monitor alarms or sell hardware; we handle the commercial side. More on how Metro Colo Advisory works.
- Number of locations, and lines per location
- What each line runs: fire alarm, elevator, alarm panel, fax, gate or call box, ATM or payment terminal, voice
- Your current monthly bill or a recent invoice
- Any carrier notice letters
- Contract end dates
POTS Line Replacement: Frequently Asked Questions
What is a POTS line?
A POTS line, short for plain old telephone service, is an analog phone line delivered over copper wire from the carrier's central office. The carrier powers the line, so it keeps working during a building power outage. Today most POTS lines serve devices such as fire alarm panels, elevator phones, alarm panels, fax machines and ATMs rather than conversations.
What is POTS line replacement?
POTS line replacement moves the devices that use copper phone lines onto a new connection, usually cellular and often with an IP backup path, before the carrier retires the copper. An appliance at the site gives each device a dial tone, so the device itself usually stays. For fire alarm and elevator lines, the local authority having jurisdiction accepts or rejects the replacement.
How much does POTS line replacement cost?
A published 2026 price guide puts POTS over cellular at about $40 to $60 per line per month, with the first line on an appliance at about $60 and additional lines at about $40. Fire alarm and elevator lines that need dual-path service, battery backup and monitoring usually price at the upper end or above. Installation, hardware terms and contract length change the total, so compare full totals rather than the price per line.
How much does a POTS line cost per month?
It depends on the contract. Under North Carolina's state contract with AT&T, a POTS line was $34.42 a month, and a published 2026 price guide says legacy lines with surcharges and fees often run over $100 a month. After that contract ended, the state's published sample tariff rate for one POTS line was $2,460.12 a month, a sample that may not reflect final pricing.
Are POTS lines being discontinued?
Yes, carrier by carrier and wire center by wire center. The FCC granted AT&T approval on January 12, 2026 to discontinue copper service in parts of 18 states starting November 15, 2026, and AT&T plans to retire the large majority of its copper outside California by the end of 2029. Verizon has approval in parts of eight former Frontier states and a nine-state request under FCC review, and Lumen closed new copper POTS orders across its legacy territory in 2025.
What is the difference between a POTS line and VoIP?
A POTS line is an analog circuit over copper, powered by the carrier. VoIP carries calls as data over an internet connection and needs power at the site for the modem, router and adapter. VoIP works well for conversations but is not recommended for fire alarm signals, because it compresses the signal.
What is LTE POTS replacement?
LTE POTS replacement uses an appliance that gives existing equipment an analog dial tone and carries the calls and signals over a cellular LTE network, often on more than one carrier. Many appliances include battery backup and a monitoring portal, and one appliance can carry several lines. It is a common way to replace device lines such as fire alarm, elevator, fax and alarm panel lines.
Do fire alarms and elevator phones still need a phone line?
They need an approved communication path, not necessarily a copper line. Under the 2016 edition of NFPA 72, a fire alarm communicator can use one phone line plus a second path that is not a phone line, such as cellular, and ASME A17.1 requires elevator phones to reach a staffed location with at least 4 hours of backup power and daily line verification. The fire marshal or elevator inspector accepts or rejects the replacement, so confirm with them before installation.
Can a fax machine work without a phone line?
Yes. A fax machine can plug into a fax-capable port on a POTS appliance, connect through an adapter that supports T.38 fax over IP, or be replaced by cloud fax that sends and receives documents as files. Ordinary VoIP without T.38 support often garbles fax tones.
What is managed POTS or POTS as a service?
Managed POTS, also called POTS as a service, is analog line replacement sold per line per month, with the provider supplying, monitoring and replacing the appliance. It turns a hardware project into a monthly service with one bill. Appliance ownership, battery hours, monitoring and term are the points to compare.
Is the carrier's own replacement the only option?
No. The carrier's own replacement is one option, and for one building with a couple of lines it may be the simplest. For organizations with many sites and mixed line types, providers that specialize in POTS replacement compete for the same work, and running them at the same time puts them in competition on price and terms.
Do you install or monitor the equipment?
No. Metro Colo Advisory is an independent advisor: we put your line list in front of the replacement providers that fit and negotiate price and terms. The provider's engineers do the site survey and installation, and monitoring comes from the replacement provider or your alarm monitoring company.
Who is your POTS replacement service built for?
Organizations with multiple locations or 20 or more lines: property managers and owners, retail and restaurant groups, bank and credit union branch networks, school districts, campuses, health systems and public agencies. If you have one building and a couple of lines, your carrier's own replacement may be the simplest answer, and we will say so.
How do you get paid, and what do you need to start?
The provider you choose pays us, so it costs you nothing. To start, send the number of locations, lines per location, what each line runs, a recent invoice or monthly bill, any carrier notice letters and contract end dates. You'll hear back within 24 hours.
Send Us the Line List Before You Request Quotes
Send it before you sign anything or ask a provider for pricing: once a provider has quoted you directly, it usually will not register an advisor. AT&T can start discontinuing copper November 15, 2026 in parts of 18 states; price every site while your contracts still hold the price. If you have one building and a couple of lines, your carrier's own replacement may be the simplest answer, and we will say so.
A recent phone bill or a list of addresses is enough to start. You'll hear back within 24 hours; we line up the providers that fit, and their engineers handle the site surveys. For organizations with multiple locations or 20 or more lines. The provider you choose pays us, so it costs you nothing. Already spoken to one provider? Tell us which; we can still run the rest of the market.
The copper deadline: the copper retirement tracker for AT&T, Verizon and Lumen approvals and dates.
By line type: elevator phone line replacement and fire alarm phone line replacement.
By industry: property management, retail and restaurants, banks and credit unions, and schools, hospitals and public buildings.
Choosing a provider: POTS replacement providers compared.
The rest of the network: SASE and SD-WAN, managed firewall services, managed security services and IT infrastructure consulting.
