Upgrade your aging business phone lines with Momentum CloudLine
Retain legacy safety alert systems and other mission critical devices with Momentum CloudLine — a fully-managed modern replacement for end-of-life copper telephone lines.
Modernize your legacy business phone lines
Efficient management
Free up resources to ensure you can concentrate on your business while ensuring safety alert systems, monitoring tools, and other mission-critical devices are fully managed and monitored.
Reduced overhead
Traditional business phones — also known as Plain Old Telephone Systems (POTS) — are expensive to maintain. Mitigate rate hikes and reduce costs by switching to CloudLine.
Designed for efficiency
Momentum's single-system technology streamlines on-site infrastructure, integrating existing wiring and connections with minimal reconfiguration required.
Find the right replacement for POTS
MFVN certified
Momentum operates as a Managed Facilities-Based Voice Network (MFVN) provider, and all CloudLine equipment is UL 60950-1 listed.
Legacy support
Easily manage, monitor, and continue to support legacy devices like elevator lines, fax lines, and safety alert systems.
Carrier-grade network
Momentum’s infrastructure is trusted by corporations and carriers worldwide, with over 200 POPs and full geo- and data center redundancy.
Full-stack connectivity
Alongside CloudLine, clients can leverage a range of synergistic services, including SD-WAN, SASE, and 5G.
Standards adherence
CloudLine is certified for use by the PTCRB, and our LTE services are approved by jurisdictions across the country.
Regulatory compliance
We’ve developed CloudLine to meet the highest security standards, ensuring customers can use it to send and receive ePHI.
Instantly modernize legacy infrastructure with plug-and-play solutions
Move beyond aging and outdated copper phone lines without the need to rewire or retouch legacy infrastructure. With Momentum CloudLine, you can replace analog lines to:
- Modernize your legacy infrastructure with plug-and-play options
- Support new technologies and communication initiatives
- Streamline and enhance management of mission-critical systems
- Improve team productivity, service availability, and reliability to drive innovation and growth
Your partner in business connectivity
Momentum gives your business services and solutions it needs to thrive. Enhance productivity and drive growth with custom solutions for connectivity, collaboration, engagement, and more.
Explore Momentum's other connectivity services
Teams Phones
Integrate enterprise-grade PBX functionality into Microsoft Teams with a direct connection to the PSTN.
Operator Connect
SIP Trunking
Enhance your existing PBX infrastructure with global coverage and on-demand scalability.
Cloud Voice
Modernize your communications infrastructure with a feature-rich cloud solution.
Teams Direct Routing
Add dial tone and enterprise voice capabilities into your Microsoft Teams environment with direct routing.
POTS Replacement frequently asked questions
POTS replacement is the process of transitioning from traditional analog telephone lines, known as Plain Old Telephone Service (POTS), to modern digital or internet-based communication systems such as Voice over Internet Protocol (VoIP) or wireless solutions. It allows organizations to retire aging copper infrastructure while maintaining connectivity for mission-critical devices like elevator phones, fire alarm panels, fax lines, and safety alert systems. Momentum’s CloudLine solution is a fully managed POTS replacement that uses plug-and-play hardware to modernize legacy lines without rewiring or retouching existing infrastructure.
Traditional copper phone lines are becoming increasingly expensive to maintain, and many carriers are actively phasing them out. POTS replacement eliminates rising rate hikes by replacing end-of-life copper lines with a modern, cost-effective alternative. With plug-and-play hardware like Momentum CloudLine, businesses gain faster connection speeds, improved reliability, and full support for mission-critical devices. It also ensures your infrastructure is ready to support future connectivity requirements as analog networks are retired.
Yes, POTS replacement is well suited for small businesses. It eliminates the cost of maintaining or upgrading aging copper lines, reduces monthly communication expenses, and provides reliable connectivity for essential devices like alarm systems and fax machines. Momentum CloudLine’s plug-and-play design means small businesses can modernize without complex installations or significant IT resources, and the solution scales easily as the organization grows.
Yes, number porting is available with POTS replacement. Your business can retain its existing phone numbers when transitioning from analog lines to a digital or VoIP-based system. Your provider manages the porting process to ensure continuity, so customers, partners, and emergency services continue to reach you at the same numbers without disruption.
POTS replacement typically requires a plug-and-play adapter or gateway device that converts existing analog endpoints to work over an internet or LTE wireless connection. Momentum CloudLine integrates with your existing wiring and connections with minimal reconfiguration, so legacy devices like elevator phones and fire panels continue to function. A reliable internet connection and, in some cases, VoIP-enabled phones may also be needed depending on your setup. Your provider handles the equipment configuration and installation.
Minimal downtime is expected during a POTS replacement transition. Experienced providers plan the migration to overlap the old and new services, ensuring mission-critical systems like safety alerts and elevator phones remain operational throughout the cutover. Momentum offers full design and installation services and manages the entire transition, so businesses
Discover our related resources
Hear from our customers

Josh Gross
Ednetics
Heidi Leyba
Lane Council of Governments
Shawn Shiroma
Evergreen Health
Jon Slaughter
Gordon Thomas Honeywell
Sandy Pagnotti
RMHC Baltimore
Jeff Perry
International Car Wash Group
Phil Almonte
Brighton Jones Financial
Jerry Maye
Smile DoctorsModernize your legacy infrastructure with Momentum
Spend less supporting traditional copper phone lines without rewiring or retouching. Discover how Momentum CloudLine can accelerate that transition.








