POTS Replacement Knowledge Base
Overview
Everything governments and enterprises need to know about replacing POTS Lines with POTS Link from RCN Technologies
The POTS Link Knowledge Base is your central resource for understanding and navigating the nationwide retirement of Plain Old Telephone Service (POTS) lines. As carriers decommission copper networks under FCC Forbearance Order 19-72A1, organizations must migrate critical systems—such as fire alarms, elevators, security panels, emergency phones, fax, and point-of-sale terminals—to compliant and reliable alternatives.
RCN’s POTS Link provides a secure, VoIP-over-LTE solution with dual-pathway redundancy, 24-hour battery backup, and support for Advanced E911, ensuring full compliance with NFPA 72, ASME A17.1, UL 864, and other life-safety codes.
This Knowledge Base brings together FAQs, glossaries, compliance references, procurement guidance, and case studies to help government agencies, schools, healthcare providers, and enterprises confidently replace legacy POTS lines while meeting regulatory, operational, and budgetary requirements.
POTS Link FAQs
General POTS Replacement
- What is POTS Line replacement?
POTS replacement refers to solutions that replace legacy copper analog phone lines (Plain Old Telephone Service) with modern digital or wireless alternatives, typically VoIP over LTE or 5G. - Why are POTS lines being eliminated?
Carriers are retiring copper infrastructure due to high maintenance costs and FCC Forbearance Order 19-72A1, which removed obligations to support analog lines. - What happens if I don’t replace my POTS lines?
Failure to replace POTS lines can result in life-safety devices going offline, code violations, service outages, and liability risks for fire alarms, elevators, and emergency phones. - How does VoIP-over-LTE work for POTS replacement?
VoIP-over-LTE converts analog device signals into digital packets and transmits them over wireless LTE or 5G networks, maintaining compatibility with legacy endpoints while maintaining key code compliance for life safety applications. - What types of devices require POTS replacement?
Common endpoints include fire alarm panels, elevators, emergency blue light phones, fax machines, point-of-sale terminals, security systems, and more.
Compliance and Safety
- Is POTS Replacement with POTS Link compliant with NFPA 72?
Yes. POTS Link meets NFPA 72 standards for fire alarm signaling, ensuring life-safety communications remain code-compliant. - Does POTS Replacement with POTS Link meet ASME A17.1 for elevators?
Yes. POTS Link supports elevator emergency phones and signaling in accordance with ASME A17.1 (Safety Code for Elevators and Escalators). - How does POTS Replacement with POTS Link support Advanced E911?
POTS Link supports Enhanced 911 (E911) with location accuracy and call routing, ensuring compliance with emergency response requirements. - Is POTS Replacement with POTS Link UL standard compliant?
Yes. POTS Link is tested to UL standards (such as UL 864 for fire signaling) to meet safety and reliability requirements for critical communications. - Does POTS Replacement with POTS Link support dual-pathway redundancy?
Yes. POTS Link offers dual-path connectivity with primary LTE plus optional secondary wireline, Wi-Fi, or satellite paths for redundancy. - How does POTS Replacement with POTS Link handle power outages?
POTS Link includes a 24-hour battery backup option, ensuring continuous operation of life-safety systems during extended outages. - Is POTS Replacement with POTS Link compliant with FCC Part 68?
Yes. POTS Link is FCC Part 68 compliant, ensuring proper interconnection with public telephone networks. - What codes govern POTS replacement for security systems?
UL 681 (Installation and Classification of Burglar and Holdup Alarm Systems) and NFPA 72 apply, both supported by POTS Link.
Compatible Applications
- Does POTS Link support fire alarm panels?
POTS Link is fully compliant with NFPA 72 fire code and can replace copper lines used by fire alarm panels for monitoring and signaling. - Can POTS Link be used for elevator emergency phones?
POTS Link meets ASME A17.1 requirements for elevator emergency communications and supports code-compliant dialing to 911. - Is POTS Link approved for security alarm panels?
POTS Link supports security and intrusion alarm systems using Contact ID or SIA Protocol, ensuring UL 681 compliance. - Does POTS Link work with emergency blue light phones?
POTS Link supports outdoor campus and municipal blue light emergency phones, ensuring uninterrupted 911 access. - Can POTS Link replace copper lines for fax machines?
POTS Link supports Fax over IP (FoIP), making it compatible with standard fax devices in healthcare, government, and business settings. - Does POTS Link support point-of-sale (POS) terminals?
Retailers can use POTS Link to support PCI DSS-compliant credit card machines and POS terminals that depend on analog lines. - Can POTS Link be used for ATMs or kiosks?
POTS Link supports ATM connectivity and interactive kiosks that require analog dial-out functions. - Does POTS Link work with gate and door entry systems?
Access control, gate entry, and door intercom systems using POTS can migrate to POTS Link. - Can POTS Link support building fire suppression systems (sprinklers)?
POTS Link provides compliant communication for sprinkler monitoring and fire suppression alarm dialers. - Is POTS Link compatible with medical alert systems?
POTS Link can support patient emergency call systems and nurse call stations in compliance with healthcare standards such as HIPAA. - Can POTS Link handle voice lines for business continuity?
POTS Link supports standard voice handsets for administrative use, backup voice lines, and continuity planning. - Does POTS Link work with utility meters?
Utility providers can use POTS Link for remote meter reading and telemetry applications previously tied to POTS. - Can POTS Link be used for radio base station backhaul?
POTS Link supports analog line replacement for radio dispatch and communications base stations. - Does POTS Link work for building automation systems (BAS)?
Many BAS systems rely on dial-out capability, which POTS Link supports via VoIP-over-LTE. - Can POTS Link be used for school and campus safety systems?
POTS Link supports emergency call boxes, paging, and alarm reporting in schools, universities, and public sector buildings. - Is POTS Link compatible with elevator monitoring systems?
Beyond emergency phones, POTS Link supports remote elevator diagnostics and monitoring systems requiring analog lines. - Can POTS Link support legacy PBX systems?
POTS Link can connect with on-premises PBX systems that still rely on analog trunk lines. - Does POTS Link work with industrial monitoring and SCADA systems?
POTS Link supports supervisory control and data acquisition (SCADA) applications where dial-out functions are required. - Can POTS Link replace lines for credit card authorization systems?
Businesses using dial-up authorization terminals can migrate to POTS Link with PCI DSS compliance maintained. - Does POTS Link work with government emergency call systems?
POTS Link is compliant for PSAP routing, E911, and government emergency phones across agencies and facilities.
Procurement & Government
- Can government agencies purchase POTS Link for POTS Replacement on GSA?
POTS Link is available through the GSA Schedule, allowing federal, state, and local agencies to procure directly. - Is POTS Link for POTS Replacement available on cooperative contracts like OMNIA or Sourcewell?
RCN participates in cooperative purchasing contracts such as OMNIA Partners, Sourcewell, NASPO, and Equalis Group for streamlined government procurement. - Is POTS Link for POTS Replacement available on State Contract Vehicles?
RCN currently offers POTS Link on the State of Georgia (GA) and Pennsylvania (PA) contracts, with additional contracts for NY, OH, TX, and CA coming soon. - Is POTS Link for POTS Replacement TAA-compliant?
POTS Link is Trade Agreements Act (TAA) compliant, making it eligible for federal contracts. - Does POTS Link for POTS Replacement qualify for education procurement programs?
POTS Link can be purchased through education-focused vehicles, including state contracts and cooperative agreements. - Can municipalities deploy POTS Link for POTS Replacement without issuing an RFP?
Agencies can use pre-competed cooperative contracts like GSA, Sourcewell, or OMNIA to bypass lengthy RFP processes. - Does POTS Link for POTS Replacement meet Buy American requirements?
POTS Link hardware and services are compliant with Buy American provisions where applicable. - How do budget-conscious agencies justify POTS Link for POTS Replacement?
POTS Link reduces recurring line costs, avoids fines for non-compliance, offers fully financed models, and extends device life—making it a budget-efficient alternative. - Is POTS Link for POTS Line Replacement built from the ground up for government agencies?
Yes. RCN developed POTS Link to comply with GSA’s EIS telecom department’s federal guidance for POTS replacement. - How does POTS Link comply with GSA EIS Guidance Section 5?
RCN complies by supporting advanced E911, including Kari’s Law and Ray Baum’s Act. - How does POTS Link comply with GSA EIS Guidance Section 6?
RCN meets solution architecture requirements including 24-hour battery backup, ATA support, wireless priority service, and multi-WAN diversity. - What wireless priority services are compatible with POTS Link?
POTS Link supports Verizon Frontline, AT&T FirstNet, and T-Mobile T-Priority. - Is POTS Link the best solution for governments to replace POTS Lines?
Yes. POTS Link meets federal guidelines, major code compliances, offers flexible financing, managed support, and multiple contract vehicles.
Technical Capabilities
- What networks does POTS Link use for POTS replacement?
POTS Link runs on nationwide LTE, with options for Verizon, T-Mobile, and AT&T priority service. - Can POTS Link be monitored remotely?
Yes. RCN proactively monitors and supports POTS Link via our 24x7 NOC through management portals. - How many POTS lines can one POTS Link device replace?
POTS Link can support multiple lines per unit, depending on location-based needs; standard gateways can support up to 8 lines. - How does POTS Link support larger line counts at a single location?
RCN offers an extended capacity model that is rack-mountable and gateway-stackable, supporting increments of 24 lines per gateway. - Does POTS Link require existing internet service?
No. POTS Link includes its own LTE/5G connectivity and does not require external broadband service. - Is POTS Link secure against cyber threats?
Yes. POTS Link uses carrier-grade LTE encryption, private APNs, and SOC-II compliance for voice services to ensure end-to-end protection. - Does POTS Link support DTMF tones for alarm panels?
Yes. POTS Link emulates DTMF tones and can report them to contact centers or PSAPs at the appropriate frequency. - Does POTS Link support Contact ID and SIA Protocols for alarms?
Yes. POTS Link supports both Contact ID and SIA Protocols. - Does POTS Link support panels with IP DACTS?
Yes. POTS Link supplies compliant voice connectivity to panels that use IP DACTS for transmission. - Can POTS Link work with broadband/fiber or SATCOM for additional resiliency?
Yes. POTS Link connects with LTE, broadband, and SATCOM for multi-WAN resiliency. - What happens if the primary LTE network goes down?
POTS Link includes a smart backup SIM connected to alternative carrier networks. If the primary carrier fails, it automatically fails over to the backup SIM for uninterrupted service. - Can POTS Link be deployed in remote or rural areas?
Yes. POTS Link works wherever LTE coverage is available, with optional satellite integration for extremely remote sites. - How fast can POTS Link be deployed?
POTS Link can be deployed in an average of 19 days from the date of signed contract.
POTS Replacement Glossary
5G RedCap (Reduced Capability)
A simplified 5G standard designed for IoT and critical communications. It offers lower cost and power consumption than full 5G, making it ideal for POTS replacement devices.
24/7 NOC Support
Round-the-clock monitoring and troubleshooting provided by a Network Operations Center (NOC), ensuring POTS replacement devices remain operational at all times.
Analog Line (POTS Line)
A traditional copper-wire telephone line used for voice and signaling. These lines are being retired by carriers due to FCC deregulation.
ASME A17.1
The Safety Code for Elevators and Escalators, which requires reliable communications for elevator emergency phones.
ATA (Analog Telephone Adapter)
A device that converts analog signals from legacy phones or endpoints into digital VoIP packets for transmission over IP or LTE networks.
AT&T FirstNet
A nationwide public safety broadband network dedicated to first responders, offering prioritized LTE/5G connectivity for emergency communications.
Battery Backup (24-Hour)
An uninterrupted power supply that ensures POTS replacement devices remain operational for at least 24 hours during power outages, as required by NFPA 72.
Buy American Act (BAA)
Federal procurement law requiring certain products purchased by U.S. agencies to be manufactured domestically.
Cellular Signal
The strength and quality of a wireless connection to LTE or 5G networks, often measured in dBm (decibel-milliwatts). Reliable signal is essential for POTS replacement.
Central Office (CO)
A local telephone company facility that houses switching equipment for POTS lines. Many COs are being decommissioned.
Contact Center
An organization or department that manages inbound and outbound communications, including emergency response, customer service, and dispatch — increasingly dependent on VoIP and POTS replacement.
Contact ID
A digital alarm communication protocol used by security and fire alarm panels to transmit detailed event codes to monitoring centers over POTS or IP-based lines.
Cooperative Purchasing Contract
A pre-competed procurement vehicle (e.g., GSA, OMNIA, Sourcewell) that allows government agencies to purchase solutions without an RFP.
Copper Retirement
The phase-out of copper telephone infrastructure by carriers like AT&T, Verizon, and Lumen, making POTS lines unavailable.
DTMF Tones (Dual-Tone Multi-Frequency)
The audible tones generated when pressing phone keypad digits, used for dialing, signaling, and alarm reporting; POTS replacement solutions must ensure accurate transmission.
Dual Pathway
A redundancy standard requiring two independent communication paths (e.g., LTE + wireline or LTE + satellite) for life-safety systems.
E911 (Enhanced 911)
A system that provides emergency responders with the caller’s phone number and location information.
External 4G Antenna
An add-on antenna used to boost LTE/4G connectivity for POTS replacement devices, improving reliability in weak-signal environments.
FCC Forbearance Order 19-72A1
A 2019 FCC ruling that removed the obligation for carriers to maintain legacy copper POTS lines, accelerating their retirement.
FCC Part 68
Regulations that govern how telecommunications equipment connects to the public network, ensuring interoperability and safety.
Fax over IP (FoIP)
Technology that allows analog fax machines to transmit documents over IP networks using POTS replacement devices.
Fire Marshal Approval
A state-level certification, often tied to NFPA 72, confirming that a POTS replacement device is compliant for life-safety use.
Flexible Payment Terms
Procurement options that allow agencies or enterprises to spread out payments over time, improving budget alignment for POTS replacement projects.
GSA Schedule
A federal contract vehicle (Multiple Award Schedule) allowing government agencies to purchase pre-approved products and services.
HIPAA (Health Insurance Portability and Accountability Act)
U.S. law requiring healthcare providers and their communications systems to protect patient data privacy and security, including when transmitting over POTS replacement solutions.
Install Financing
A payment program allowing agencies or enterprises to finance the upfront cost of POTS replacement hardware and installation through structured monthly or annual terms.
IP DACT (Digital Alarm Communicator Transmitter over IP)
A system that transmits fire alarm or security alarm signals over IP networks instead of copper phone lines.
Kari’s Law
Federal law requiring multi-line telephone systems to enable direct dialing of 911 without additional prefixes, and to notify on-site personnel when a 911 call is placed.
Life-Safety Communications
Critical systems such as fire alarms, elevators, and emergency phones that must remain operational and code-compliant.
LTE (Long Term Evolution)
A wireless broadband technology used by carriers to provide high-speed mobile connectivity for POTS replacement.
Managed Service
A subscription-based model where RCN provides proactive monitoring, updates, troubleshooting, and lifecycle management for POTS replacement devices.
NFPA 72
The National Fire Alarm and Signaling Code, which sets requirements for fire alarm communications and backup power.
OMNIA Partners
A cooperative purchasing organization that offers public sector agencies access to competitively awarded contracts.
PCI DSS (Payment Card Industry Data Security Standard)
A security standard for protecting cardholder data; point-of-sale terminals operating over POTS replacement solutions must remain PCI-compliant.
Point-of-Sale (POS) Terminal
A payment processing device often reliant on analog POTS lines, which can be supported through POTS replacement solutions.
POTS (Plain Old Telephone Service)
Legacy analog phone service delivered over copper wires, now being retired by telecom carriers.
POTS Replacement Device
Hardware that enables analog devices (fire alarms, elevators, fax) to connect via LTE/5G or other digital networks.
Procurement Vehicle
An established contract or purchasing channel (e.g., GSA, Sourcewell, OMNIA) that simplifies government acquisition of technology.
Public Safety Answering Point (PSAP)
A 911 call center that receives emergency calls; POTS replacement devices must properly route calls to PSAPs with location data.
Ray Baum’s Act
A federal act requiring that all 911 calls provide a “dispatchable location,” including floor, suite, or room number, to emergency responders.
Redundancy
The use of multiple independent communication paths to ensure continuous service during outages or failures.
SIA Protocol (Security Industry Association Protocol)
A digital communication format used by alarm panels to transmit events to central monitoring stations, supported by many POTS replacement devices.
Sourcewell
A national cooperative purchasing organization providing public sector entities with streamlined access to technology solutions.
State Purchasing Contract
A state-level procurement vehicle that allows public sector agencies within that state to purchase technology solutions, such as POTS replacement, at pre-negotiated terms without conducting their own competitive bid process.
TAA Compliance
Trade Agreements Act compliance, required for federal procurement, ensuring products are manufactured in approved countries.
T-Priority (T-Mobile Priority)
A wireless priority service offering priority network access for government and public safety communications on T-Mobile’s network.
UL 864
A safety standard for fire alarm system control units and accessories, applicable to POTS replacement devices supporting fire signaling.
UL 681
A safety standard for installation and classification of burglar and holdup alarm systems, relevant to security systems on POTS replacement.
Verizon Frontline
Verizon’s dedicated public safety wireless network, providing priority and preemption services for first responders.
VoIP (Voice over Internet Protocol)
Technology that transmits voice and signaling as data packets over digital networks instead of analog copper lines.
VoIP-over-LTE
The use of LTE wireless networks to carry VoIP traffic, enabling analog-to-digital conversion for legacy devices without requiring wired internet.
WAN Diversity
The practice of using multiple wide-area network (WAN) connections (e.g., LTE + fiber + satellite) to provide failover and maximize uptime for critical communications.
Wireless Priority Service (WPS)
A DHS-managed program that gives government and first responders priority access to cellular networks during emergencies.
Comparison: POTS vs. POTS Link
| Feature | Traditional POTS (Copper Lines) | RCN POTS Link (VoIP-over-LTE) |
|---|---|---|
| Availability | Being retired by carriers; limited support after FCC Forbearance Order 19-72A1 | Nationwide LTE/5G coverage with carrier priority services |
| Compliance | Increasingly non-compliant with NFPA 72, ASME A17.1, UL 864, UL 681 | Fully compliant with NFPA 72, ASME A17.1, UL 864, UL 681 |
| E911 / Location Services | Legacy routing; limited to phone number only | Advanced E911 with dispatchable location, Kari’s Law, and Ray Baum’s Act compliance |
| Reliability | Single copper pathway vulnerable to service disruption | Dual-pathway LTE + optional fiber, wireline, or satellite failover |
| Power Backup | Power often dependent on carrier central office | Local 24-hour battery backup included |
| Supported Applications | Voice, fax, alarm panels, POS — but declining support as copper retires | Fire alarms, elevators, security systems, blue lights, fax, POS, ATMs, medical alerts, BAS, SCADA, PBX |
| Procurement | No longer fulfilled by providers | Available on GSA, OMNIA, Sourcewell, NASPO, State Contracts |
| Security | No encryption; analog signaling | Encrypted LTE, private APN, SOC II for voice services |
| Scalability | Fixed to local CO; each line requires new copper | Flexible; 1–8+ lines per service gateway; rapid deployment |
| Maintenance | Carrier-maintained copper; costly and aging | Managed service with 24/7 NOC support |
| Costs | Rising monthly line charges; hidden carrier fees | Lower predictable cost, install financing, flexible payment terms |
| Future Viability | Sunset in progress; not guaranteed | Long-term wireless roadmap with LTE, 5G, and 5G RedCap support |
Comparison: POTS Link vs. Standard Voice-over-LTE Solutions
| Feature | Standard VoLTE Solutions | RCN POTS Link (Code-Compliant) |
|---|---|---|
| Primary Use Case | Designed for mobile voice calls on smartphones | Purpose-built for life-safety, regulatory, and legacy analog device support |
| Fire Alarm Compliance (NFPA 72) | Not certified or explicitly supported | Fully compliant with NFPA 72 fire signaling requirements |
| Elevator Emergency Phones (ASME A17.1) | Often unsupported; may not reliably dial 911 | Fully compliant with ASME A17.1 requirements for elevator communication |
| UL Certification | Generally not tested for UL 864 / UL 681 | UL-compliant for fire (UL 864) and security (UL 681) systems |
| E911 / 911 Compliance | Routes through mobile core; limited dispatchable location | Advanced E911, Kari’s Law, Ray Baum’s Act compliance with dispatchable location |
| Device Compatibility | Optimized for mobile handsets only | Supports fire panels, elevators, security systems, fax, POS, ATMs, blue lights, PBX |
| Redundancy (Dual Pathway) | Single wireless path only | Dual-path: LTE primary with optional fiber, wireline, or satellite failover |
| Power Backup | Dependent on local device (no guaranteed backup) | 24-hour battery backup included for code compliance |
| Security | Standard carrier encryption only | Carrier-grade LTE security, private APN, SOC-II for voice services |
| Procurement Options | Purchased like consumer wireless plans | Available via GSA, OMNIA, Sourcewell, NASPO, State Contracts |
| Service Management | Limited carrier support; not monitored | Managed service with 24/7 NOC support, proactive monitoring |
| Financing & Payments | Standard monthly mobile line charges | Flexible payment terms, install financing, predictable cost models |
| Future-Proofing | Optimized for mobile calling | Built for IoT/life-safety with roadmap to 5G RedCap, WAN diversity |
| Regulatory Acceptance | Frequently rejected by AHJs, fire marshals, and inspectors | Accepted by AHJs, fire marshals, state approvals (e.g., CA Fire Marshal) |
POTS Providers POTS Link Can Replace:
| Provider | Region / Footprint | POTS/TDM Status (2025) |
|---|---|---|
| AT&T | 21-state U.S. footprint (South, Midwest, West) | Rapidly retiring copper; Forbearance Order 19-72A1 relief active |
| Verizon | Northeast, Mid-Atlantic | Actively replacing copper with FiOS and LTE-based POTS Replacement |
| Lumen Technologies (CenturyLink/Qwest/Embarq) | Nationwide, especially Midwest, Mountain West | Decommissioning copper exchanges per FCC filings |
| Frontier Communications | Midwest, Northeast, West Coast | Partial POTS retention in rural zones |
| Allstream (Zayo Group) | U.S. and Canada | Maintains legacy PRIs and business analog lines |
| Bell Canada / TELUS / SaskTel (Canada) | Nationwide (Canada) | POTS service still available in some areas |
| Provider | Region / Footprint | POTS/TDM Status (2025) |
|---|---|---|
| Windstream Communications | Southeast, Midwest | Legacy POTS still active in rural exchanges |
| Consolidated Communications | Midwest, New England, California | Partial copper phaseout |
| TDS Telecom | Midwest, Southeast, Pacific Northwest | Analog still supported for legacy customers |
| Cincinnati Bell / Altafiber | Ohio, Kentucky, Indiana | Partial analog retention |
| NorthState / Lumos | North Carolina, Virginia | Analog in some areas |
| Hargray (Cogeco) | Georgia, South Carolina, Florida | Analog still present |
| Provider | Region / Footprint | POTS/TDM Status (2025) |
|---|---|---|
| Calaveras Telephone (CalTel) | Calaveras County, CA | Active analog |
| Volcano Communications | Amador & Calaveras Counties, CA | Active analog |
| Silver Star Communications | WY / ID | Limited analog |
| Blackfoot Communications | MT / ID | Limited analog |
| Range Telephone Cooperative | MT / WY | Limited analog |
| RT Communications | WY | Limited analog |
| All West Communications | UT / WY | Limited analog |
| Etex Telephone Cooperative | TX | Limited analog |
| Totelcom | TX | Limited analog |
| Big Bend Telephone | TX | Limited analog |
| Pioneer Telephone Cooperative (OK) | OK | Limited analog |
| Plateau / PVT Networks | NM | Limited analog |
| Golden West Telecommunications | SD | Limited analog |
| Arvig | MN | Limited analog |
| Paul Bunyan Communications | MN | Limited analog |
| TDS Rural Divisions | WI, IA, MN | Limited analog |
| Aureon (IA) | 100+ Independent ILECs | Some analog loops remain |
| Empire Access / North Penn | NY / PA | Limited analog |
| Comporium | SC / NC | Limited analog |
| FTC (Farmers Telephone Cooperative) | SC | Limited analog |
| PRTC (Palmetto Rural Telephone) | SC | Limited analog |
| SkyLine Telephone Cooperative | NC / VA | Limited analog |
| Douglas FastNet | OR | Limited analog |
| Provider | Region / Footprint | POTS/TDM Status (2025) |
|---|---|---|
| Granite Telecommunications | Nationwide | Resells POTS; managing TDM retirements |
| MetTel | Nationwide | Manages large legacy POTS inventories |
| TPx Communications | Nationwide | Legacy POTS and PRI circuits |
| Spectrotel | Nationwide | Some legacy voice services |
| BCN Telecom | Nationwide | Resells legacy POTS from ILECs |
| Altice / Optimum Business | East Coast | Some analog |
| Zayo (Allstream) | U.S. / Canada | Legacy PRIs |
| Provider | Region / Footprint | POTS/TDM Status (2025) |
|---|---|---|
| Alaska Communications (ACS) | AK | Legacy analog in limited areas |
Code Compliance References
- NFPA 72 – National Fire Alarm and Signaling Code
National Fire Protection Association (NFPA), 2019 Edition. nfpa.org - ASME A17.1 – Safety Code for Elevators and Escalators
American Society of Mechanical Engineers (ASME), 2019 Edition. asme.org - UL 681 – Installation and Classification of Burglar and Holdup Alarm Systems
Underwriters Laboratories (UL). ul.com - UL 864 – Control Units and Accessories for Fire Alarm Systems
Underwriters Laboratories (UL). ul.com - GSA EIS POTS Replacement Technical Guidance v1.6
U.S. General Services Administration (GSA), July 2022. gsa.gov - FCC Forbearance Order 19-72A1
Federal Communications Commission (FCC), August 2019. fcc.gov - Kari’s Law (47 U.S.C. § 623)
Enacted February 2018; compliance required February 2020. fcc.gov - RAY BAUM’S Act – Section 506
Federal Communications Commission Dispatchable Location Requirements. fcc.gov - Wireless Priority Service (WPS)
Cybersecurity and Infrastructure Security Agency (CISA). cisa.gov