There is a deadline coming for your business phone line, and it is not on any calendar you control. In March 2026 the FCC removed the federal approval step that carriers previously needed before retiring copper phone lines. There is no national shut-off date, and no rule forcing carriers to keep copper running either. The date that matters to you is set by your carrier, arrives as a discontinuance notice for your specific address, and gives you about ninety days.
AT&T has already asked to discontinue legacy POTS service from November 2026 across parts of eighteen states. Most carriers are working toward full copper retirement somewhere between 2026 and 2029.
Ninety days is not a project timeline
If the only thing on that line is the phone on the reception desk, ninety days is plenty. The problem is that almost nobody has only the phone on it.
Walk your building and count the analogue lines. In a typical small business you find:
- The fax, usually still receiving something from an insurer or a lab
- The alarm panel, dialling out over the same copper pair
- The elevator emergency line, which is a legal requirement in most buildings
- The card terminal in the back office that nobody migrated
- The gate or door intercom
- A modem on the HVAC or the irrigation controller that an installer put in years ago
Each of these needs its own answer, and some of them are not phone problems at all. An elevator line has code requirements. An alarm panel may need a cellular communicator rather than an internet one. Finding this out after the copper is cut is the expensive way to learn it.
What you actually gain, beyond not being cut off
Two things, and the first one surprises people because of how it is billed.
Copper is billed per line. Voice over IP is billed per person. That sounds like a detail and it is usually the whole saving. A copper line costs the same whether it rings a hundred times a month or never, so businesses end up renting lines for a fax nobody sends and a room nobody uses. When we inventory before a migration, finding lines the owner had forgotten about is the norm, not the exception. Domestic calling is normally included rather than metered, which removes the other half of the bill.
We are not going to quote you a savings percentage. The figures circulating online come from companies selling phone systems and range from thirty per cent to ninety, which tells you they are marketing rather than measurement. Your saving depends on how many lines you are currently renting and how much you call. That is knowable in an afternoon, from your own bill.
The second gain is how you sound. A five person company on copper answers like five people with phones. The same company on a modern system answers with a main number, a menu that routes to the right person, extensions, hold music, and voicemail that arrives in your inbox as a file you can forward to whoever needs to act on it. That matters most on the first call from somebody who does not know you yet, which is exactly the call you cannot afford to fumble.
The other quiet benefit: the phone stops being a place. The same extension rings on the desk phone, the laptop and the mobile, so the office number works from home and from a client site, and your staff stop handing out their personal numbers to customers.
What to do now, in order
- Find out what you are actually paying for. Pull your last phone bill and count the lines. Most owners cannot say how many they have without looking, which is the first finding.
- Walk the building. Fax, alarm, elevator, card terminal, intercom, anything with a phone cord. Write down what each one does and who is responsible for it.
- Ask your carrier whether your wire center has a retirement notice. You are entitled to know, and the answer sets your real timeline.
- Migrate the phones first and the odd devices deliberately. Not the same week. The devices are where the failures happen.
- Port your numbers, do not replace them. A number that has been on your van and your invoices for a decade is worth keeping, and porting is routine when it is planned and painful when it is rushed.
The honest summary
This is not a scare. Copper going away is a scheduling problem, and scheduling problems are cheap when you have a year and expensive when you have ninety days. The businesses that will have a bad week are the ones who find out from a letter.
If you want a hand, we do this as a migration rather than a product sale, and we are not tied to one carrier or platform. You can see how we approach it on our phones and communications page, and you can hear what a proper phone menu sounds like with our free voice generator before you decide anything.
Sources: FCC Network and Services Modernization Order, March 2026, and carrier discontinuance filings. There is no federal deadline for POTS retirement; timelines are set by carriers for individual wire centers.