POTS to VoIP Migration Cost 2026: FCC Sunset Order Impact

What the FCC forbearance order actually did

In 2019 the FCC issued Order 19-72, granting AT&T and other incumbent local exchange carriers forbearance from certain obligations to maintain wholesale copper lines (specifically the obligations under Section 271 of the Communications Act). The practical effect: carriers no longer had to keep selling copper lines at regulated wholesale prices to competitors, and could plan retirement of copper plant on their own timelines.

Reference: FCC Order 19-72A1 PDF. The order is highly technical but the end-state is clear: copper is being retired and replaced by IP-based services. POTS as a product category is being wound down.

For small businesses the practical impact has come gradually. POTS line prices have risen sharply (the rate increases have effectively been a transition mechanism nudging customers to migrate). In some areas carriers have issued notice that copper service will be discontinued by a specific date, leaving customers no choice but to migrate. The right time to plan the migration is now, even if your specific carrier has not yet announced a discontinuation date.

Why POTS bills have risen so fast

Carriers maintaining a shrinking copper plant must recover the cost across a smaller user base. The math is straightforward: if it costs $X per year to maintain the copper exchange and the number of remaining users falls by half, the per-user cost roughly doubles. Some carriers have implemented explicit "transition surcharges" on top of the base line rate.

Common pricing patterns we have seen: $30 per line in 2020 to $80 in 2023 to $120 in 2026 for similar AT&T POTS service. CenturyLink (now Lumen) similar trajectory. Verizon less aggressive but still climbing. The trend is consistent across carriers and accelerating.

The migration economics tilt sharply as the POTS bill grows. A 5-line business paying $400 a month for POTS in 2023 may be paying $750 a month in 2026 for the same service. Replacing with 5 VoIP seats at $25 per seat plus fees lands around $200 a month all-in. Annual savings of $6,000 plus, paying back any migration costs in months not years.

Migration cost breakdown

A POTS-to-VoIP migration for a 5-line small business breaks down into three cost buckets.

Total one-time costs for a 5-line business typically run $200 to $2,000 depending on hardware choices. Ongoing monthly costs typically drop by $200 to $400 versus the POTS baseline. Payback period: 1 to 6 months on the migration cost.

Legacy device handling

The traditional argument for keeping POTS was that certain devices (fax machines, elevator phones, alarm panels, security systems) required analog lines. This argument is now largely obsolete.

Fax over IP: the T.38 protocol carries fax over VoIP networks. Most tier-one providers support T.38 either natively or through a dedicated fax-over-VoIP add-on. Alternatively, online fax services (eFax, MyFax) replace the physical fax machine entirely for $10-$30 per month.

Elevator phones: modern elevator systems support cellular fallback (LTE-M radios) or IP-based connections. Older systems may still need analog, which can be supplied via an ATA gateway. Coordination with your elevator service contractor is essential; budget for an elevator-service-company site visit.

Alarm panels: most modern alarm panels support cellular reporting or IP-based reporting through a security service. If your panel is older than 2010 it may need replacement; if newer, the alarm company can typically migrate the reporting path without panel replacement. Budget a service call from your alarm company.

Migration timeline and parallel-running

The standard migration runs 4 to 8 weeks. Week 1 is research and vendor selection. Week 2 is ordering: provisioning VoIP service, ordering hardware, initiating number ports. Weeks 3 to 4 are setup: hardware arrives, softphones install, IVR configures.

Weeks 4 to 6 are the critical parallel-running period: POTS service stays active while VoIP comes up. Test extensively. Make and receive calls over both systems. Verify call quality, 9-1-1 routing, voicemail behaviour. The parallel period catches the issues that only emerge in real use.

Weeks 7 to 8 are the cutover: numbers port to the VoIP carrier (this is the unidirectional step that ends the POTS phase), then POTS is cancelled. The number-port itself has a window of a few hours where calls may route oddly; warn customers and staff in advance. After successful port, cancel POTS in writing with your incumbent carrier (do not just stop paying; that creates collection issues).

Frequently asked questions