Jump to: 🚨 Life-Safety / Cellular 🏢 Business / VoIP 🏗️ Multi-Location / Hybrid 🤝 Providers
Option 1

Cellular / VoLTE Replacement

A cellular device replaces your POTS line entirely — plugging into your existing equipment and communicating over a 4G LTE or 5G network instead of copper wire. No internet connection required. No rewiring needed in most cases.

⚡ Best for life-safety & code compliance

How it works

A small cellular communicator is installed at the equipment location. It creates a direct cellular voice connection — mimicking a POTS line — so your existing fire panel, elevator phone, or alarm system continues to work without any changes to the device itself.

Best for
🚨 Fire alarm panels 🛗 Elevator phones 🏊 Pool phones 🔒 Security systems 🚪 Gate & entry phones 📍 Remote locations
Advantages
  • No internet connection required
  • Works during internet outages
  • Code-compliant for life-safety use
  • Battery backup maintains emergency function
  • Works with existing equipment — no replacements
  • Priority network options (FirstNet) available
Considerations
  • Requires cellular coverage at the location
  • Monthly service fee per line
  • Signal quality varies by location
Get a Cellular Replacement Assessment →

What is FirstNet?

FirstNet is AT&T's dedicated priority network built for public safety and first responders. Cellular POTS replacements that run on FirstNet get network priority — meaning their connections are maintained even during a local emergency when tower capacity is strained.

For life-safety applications like fire panels and elevator phones, FirstNet-capable devices offer an additional layer of reliability that standard cellular doesn't guarantee.

Cellular VoLTE POTS replacement device installed alongside life-safety equipment
Option 2

VoIP / Business Phone Replacement

Voice over IP (VoIP) routes phone calls over your existing internet connection instead of copper wire. For most business phone lines, it's a direct, cost-effective replacement — often with better features than POTS ever offered.

Important note on life-safety

VoIP is excellent for business phone lines, but it is generally not suitable for fire alarm panels, elevator phones, or other life-safety devices. Those require cellular-based solutions. If you have a mix of equipment, see the Hybrid option below.

Modern office team using VoIP phones and headsets
💼 Best for business phone lines

How it works

Your phone system connects to the internet via a VoIP adapter or a cloud-hosted phone system. Calls travel over your broadband connection instead of a copper line — and you typically get a full suite of business features (auto-attendant, voicemail, conferencing) included.

Best for
🏢 Office phone lines 📠 Fax replacement ☎️ Legacy PBX systems 📞 Multi-line businesses 🏪 Retail & hospitality
Advantages
  • Usually less expensive than POTS
  • Rich feature set included
  • Easy to scale lines up or down
  • Works with existing phones (adapter) or new hardware
  • Supports remote and hybrid workers
Considerations
  • Requires a reliable internet connection
  • Not suitable for life-safety equipment
  • Call quality depends on internet quality
Get a VoIP Replacement Assessment →
Option 3

Hybrid / Multi-Site Strategy

Many organizations have both business phone lines and life-safety equipment — or operate across multiple locations with different needs at each site. A hybrid approach uses cellular for life-safety devices and VoIP for business lines, often managed under one vendor relationship.

🏗️ Multi-site or mixed equipment

How hybrid works

A single provider assesses all your existing lines — both business phones and life-safety equipment — and deploys the right technology for each. Life-safety devices get cellular connections. Business phones get VoIP. One account, one point of contact.

Best for
🏗️ Multi-location businesses 🏢 Mixed business + safety lines 🏛️ Property management companies 🏥 Healthcare facilities 🏫 Education campuses
Advantages
  • Right technology for each use case
  • Coordinated rollout across locations
  • Single vendor, simplified management
  • Avoids compliance gaps from partial replacement
  • Scalable as the organization grows
Considerations
  • Requires a thorough line audit upfront
  • More complex to coordinate than single-site
Get a Multi-Site Assessment →

Start with a line audit

Before choosing a replacement path, the most important step is knowing what you have. A thorough line audit identifies every POTS-dependent device across your locations — which ones are life-safety, which are business lines, and which are legacy devices you may not even be aware of.

Our free assessment starts with exactly that.

Request a Free Line Audit →
Multiple building locations connected through unified cellular and VoIP management

Who provides these solutions?

ThePOTSGuide is a resource powered by Simplifi, a provider that specializes in exactly these replacement paths.

Simplifi

Simplifi provides cellular and VoIP connectivity solutions for businesses and building owners. Their products cover POTS line replacement for life-safety equipment, business voice applications, and enterprise multi-site deployments.

Covers
🚨 Fire alarm panels 🛗 Elevator phones 🏢 Business phone lines 📞 Multi-line office systems 🏗️ Enterprise & multi-site 📶 Fixed-wireless connectivity

Not sure which solution fits your situation? Our free assessment matches you to the right path automatically.

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