POTS Line Replacement Dallas: What DFW Businesses Must Do Before Service Stops
POTS line replacement Dallas businesses need is no longer optional or a future planning item. AT&T began actively decommissioning copper wire centers in June 2026 and holds federal approval to retire more than 30 percent of its copper footprint across 18 states, including Texas. The company has also committed publicly to retiring the large majority of its remaining copper network by 2029. Dallas-Fort Worth businesses still on traditional copper lines are receiving formal discontinuation notices. Some have already lost service entirely.
This guide explains what’s happening and what specific Dallas-Fort Worth deadlines apply. It also covers which devices are affected beyond office phones, and what your replacement options are depending on your current setup.
What POTS Lines Are and Why They’re Being Eliminated
POTS stands for Plain Old Telephone Service. It refers to the traditional copper telephone lines that have connected businesses to the phone network for over 100 years. These lines carry analog voice signals over physical copper wire running from your building to the carrier’s central office. For most of the 20th century, they were the only option.
In 2015, the FCC issued Technology Transitions Order 15-97. This order began dismantling the regulatory framework that previously required carriers to maintain copper infrastructure. That order allowed AT&T, Lumen, and other carriers to begin retiring copper networks on a market-by-market basis. In March 2025, the FCC accelerated the process further. It reduced the required notice period before copper discontinuation from 180 days to just 90 days.
The result is a compressed timeline. DFW businesses have very little room to plan once they receive a discontinuation notice. Consequently, businesses that wait for a notice before acting are already behind.
The AT&T Copper Retirement Timeline — What It Means for DFW
Understanding the specific milestones helps DFW businesses assess their urgency. Here is what has already happened and what is still ahead.
October 2025 — New Orders Frozen
As of October 15, 2025, AT&T halted all new orders, moves, and changes on copper POTS lines. This applied to more than 2,000 wire centers in 19 states, including Texas. From this date forward, DFW businesses on copper lines could no longer add lines or modify existing copper service. The network was frozen. The network was effectively frozen in place. If you haven’t changed your copper service since this date, that’s because you can’t.
December 2025 — Service Terminations Approved
The FCC automatically granted AT&T approval to begin discontinuing service at wire centers covering approximately 90,000 customers across 18 states. This approval covered more than 30 percent of AT&T’s copper footprint. Importantly, it marked the formal beginning of service terminations — not just service freezes.
June 2026 — Physical Decommissioning Began
AT&T began physically decommissioning copper facilities in approximately 500 wire centers nationwide. When a wire center is decommissioned, every POTS line it serves is terminated permanently. Specifically, there is no forwarding, no grace period, and no way to restore service after the fact. DFW businesses in affected wire centers began receiving formal discontinuation notices with specific shutdown dates during this period.
November 2026 — Next Major Cutoff
A separate AT&T filing targets discontinuation of service for approximately 90,000 additional customers across 18 states. The effective date is November 15, 2026. Under current FCC rules, customers receive only 90 days of advance notice before termination. That means businesses may receive notice as late as mid-August 2026 for a November cutoff date. In other words, roughly 90 days remain — and a proper POTS line replacement typically takes 30 to 60 days minimum to plan and execute.
2029 — Full Copper Retirement Target
AT&T has stated publicly its intention to retire virtually all remaining copper services nationwide by 2029. In other words, every DFW business still on copper lines will face this transition — the only variable is when.
What Devices Depend on POTS Lines and Need Replacement
POTS line replacement Dallas businesses often underestimate in scope. The challenge extends well beyond desk phones and PBX systems. Many building systems run on copper lines and require their own dedicated solution.
Office Phones and PBX Systems
This is the most visible need and typically the one businesses address first. However, it’s important to confirm your current setup first. Specifically, cloud-hosted systems, on-premise PBX systems, and standalone analog phones each require a different POTS line replacement approach.
Fire Alarm and Security Systems
Fire alarm panels typically report to a central monitoring station over a dedicated copper line. This is a life-safety system with code compliance implications. Replacing the copper POTS connection for a fire alarm requires coordination with the alarm company and possible panel reprogramming. Furthermore, the replacement solution must meet NFPA 72 requirements. This is not a DIY item.
Elevator Emergency Phones
Elevator emergency phones are legally required communications under ASME A17.1 elevator safety codes. They must remain operational at all times, and most currently connect over copper. As a result, POTS line replacement for elevator phones requires a code-compliant solution. Typically, that means cellular or VoIP with battery backup that meets ASME A17.1 elevator emergency communication requirements.
Fax Machines
High-volume fax users depend on copper fax lines for HIPAA-compliant document transmission. These include medical practices, legal firms, and real estate companies. Virtual fax solutions replace copper fax lines with cloud-based alternatives that maintain compliance and eliminate the hardware dependency.
Gate and Door Access Systems
Entry systems, parking gate controllers, and intercom systems all dial out over copper. After migration, each requires an analog telephone adapter (ATA). Specifically, an ATA converts the analog signal to work over your internet connection. As a result, it preserves compatibility with devices that can’t connect directly to VoIP.
Emergency 911 Lines
Dedicated 911 lines in healthcare facilities, schools, and certain commercial buildings also run over copper in many DFW properties. These lines have specific regulatory requirements and must be replaced with solutions that maintain E911 location accuracy.
POTS Line Replacement Options for Dallas Businesses
The right POTS line replacement solution depends on two things: which devices you’re replacing, and what infrastructure you already have.
Cloud-Hosted VoIP — Best for Office Phone Lines
For most DFW businesses, migrating to a cloud-hosted VoIP platform is the right move for main phone lines and PBX. Platforms like Intermedia Elevate replace every function your copper lines provided. In addition, they add mobile apps, video conferencing, AI-powered transcription, and voicemail-to-email — capabilities that copper never offered. This is the most common and cost-effective POTS line replacement path for Dallas businesses with 5 to 200 employees.
Cloud-hosted VoIP also eliminates the hardware dependency that makes copper migrations disruptive. Because call processing happens in the cloud, adding a location or changing call routing requires no physical work. You manage everything from a web browser.
SIP Trunking — For Businesses With Existing On-Premise PBX
If your on-premise PBX is modern and well-configured, SIP trunks can replace the copper carrier lines. This approach keeps your existing system while eliminating the analog dependency. SIP trunks deliver the same PSTN connectivity over your broadband connection — typically at a lower monthly cost than copper. This is a valid POTS line replacement path when your PBX has remaining useful life. It also works well when your team is comfortable with the existing system.
However, SIP trunking requires that your internet connection and network are configured correctly for voice traffic. Quality of Service (QoS) settings, adequate bandwidth, and proper firewall configuration all affect call quality. Furthermore, not all older PBX systems are SIP-compatible without additional hardware.
Analog Telephone Adapters — For Non-Phone Devices
For alarm systems, elevator phones, fax lines, and gate systems that cannot connect directly to VoIP, an ATA is the solution. Specifically, it converts the analog signal to work over your internet connection. Some carriers also offer cellular-based POTS replacement solutions designed specifically for these non-phone use cases. These are a strong option for devices that require always-on reliability independent of your internet connection.
For fire alarm and elevator phone replacements specifically, cellular-based solutions with battery backup are often the most compliant choice. They also operate independently of your internet connection. They operate independently of your internet connection and are not affected by network outages at your facility.
What a Complete POTS Migration Requires in Dallas-Fort Worth
A complete POTS line replacement Dallas businesses complete successfully requires more than replacing desk phones. Every device currently using a copper line needs to be identified, assessed, and assigned the right replacement solution. The migration process also involves number porting — transferring your existing DFW phone numbers to the new platform. This requires coordination with AT&T or your current carrier. Specifically, timing must be planned carefully to avoid service gaps.
For most DFW businesses, a proper POTS migration involves four stages. First, a full inventory of every device using copper lines. Second, a replacement solution assessment for each device. Third, installation and configuration of replacement technology. Fourth, number porting with carrier coordination to ensure continuity.
The 90-day notice window AT&T provides is not enough time to complete this process if you’re starting from scratch. In short, businesses that begin planning when they receive a discontinuation notice are already at risk of service interruption.
For more context on the broader copper cancellation timeline in DFW, see our copper phone line cancellation guide for Dallas businesses.
The Cost of Waiting
The financial case for acting now rather than later is straightforward. AT&T has been raising rates on copper lines significantly as it moves toward discontinuation. In some cases, grandfathered copper lines now exceed $2,700 per line per month for businesses that haven’t migrated. That’s not a typo. Carriers have no incentive to offer competitive pricing on infrastructure they’re actively trying to retire.
Additionally, businesses that receive a discontinuation notice without a migration plan face a hard deadline race. That procurement and deployment pressure is avoidable with early action. According to AT&T’s POTS discontinuation documentation, the 90-day notice window is the legal minimum — not a comfortable planning horizon.
Why DFW Businesses Work With NTi for POTS Line Replacement
NTi Technologies has been managing telephone migrations for Dallas-Fort Worth businesses since 1987. Our POTS line replacement process covers every device in your building. That includes alarm panels, elevator phones, and gate systems — the devices most VoIP vendors overlook. We manage the number porting process and coordinate with AT&T on your behalf. As a result, no service gap occurs during the cutover.
Our team at NTi Technologies designs and deploys POTS line replacement solutions for commercial businesses across the Dallas-Fort Worth metroplex. We offer free on-site assessments for commercial projects. We’ll inventory every copper line in your building and provide a complete migration scope before any work begins. Visit our cloud phone systems page or call 214-352-5000 to schedule your free assessment today.
NTI Technologies is a Dallas-based business technology company serving businesses across the DFW metroplex, including Plano, Frisco, McKinney, Allen, Las Colinas, and beyond. We specialize in commercial access control, security camera systems, structured cabling, business phone systems, and audio-visual conferencing for offices, medical facilities, and corporate campuses.
