PSTN Landline replacement solution
The UK’s PSTN landline switch-off is fast approaching. ControlFreq provides secure PSTN landline replacement solutions using ATA (Analogue Telephone Adapters) and digital connectivity, ensuring lift phones, alarms, and other critical systems remain compliant and operational.
Why PSTN replacement matters
The national PSTN switch-off will render traditional copper landlines obsolete. Critical systems such as lift phones, alarm panels, and telecare devices still rely on these connections, leaving property managers and service providers exposed to downtime, compliance risks, and safety failures. ControlFreq’s PSTN Landline Replacement ensures continuity by converting analogue connections into digital signals with ATA (Analogue Telephone Adapters) and resilient GSM/4G networks.
How it works
Our solution connects existing analogue devices to an ATA, which emulates the PSTN line. This means your systems continue to function exactly as before, but over modern mobile or IP-based networks. By combining ATA with ControlFreq’s multi-network SIMs and WebAlarm™ platform, users gain reliable connectivity, instant alerts, and cloud-based visibility across their estate.
Industry applications
From commercial buildings and residential blocks to hospitals, retail, and infrastructure, our PSTN replacement solutions are tailored to each sector. Whether it’s a single emergency lift phone or hundreds of telecare devices, ControlFreq ensures seamless migration to modern networks without compromising safety or compliance.
Which technologies still rely on PSTN?
Many safety and building management systems continue to rely on legacy PSTN lines. ControlFreq’s ATA-based solutions keep these systems fully operational over GSM/4G and IP networks.
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Emergency Lift Phones
Maintain critical communication in elevators for contacting maintenance or emergency services during breakdowns or entrapments.
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Fire & Security Systems
Ensure reliable transmission of fire detection, intruder alerts, and security monitoring signals to monitoring centres.
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CCTV Systems
Ensure security camera systems and monitoring equipment continue to transmit data and alerts without relying on PSTN lines.
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Door Entry Systems
Maintain access control in residential and commercial buildings, allowing seamless communication between entrances and occupants.
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ATM Machines
Keep ATM machines operational to ensure uninterrupted cash withdrawals and banking services in all locations.
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Critical Infrastructure
Maintain essential systems like traffic lights, railway signals, and motorway signage that previously relied on PSTN connections.
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Telecare Devices
Ensure reliable communication for personal alarms used by elderly or vulnerable individuals during emergencies like falls or medical distress.
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Custom Solutions
Need a specialised solution? Our team can develop custom configurations to meet your specific industry requirements.
Benefits of PSTN Landline Replacement with ATA Solutions
pgrading from PSTN lines with ControlFreq ensures compliance, safety, and reliable communications without costly system replacements.
Seamless transition
Replace ageing PSTN lines with GSM/4G/IP networks without service disruption.
Compliance assured
Stay aligned with EN81-28 and other safety standards for lifts and alarms.
Extended lifespan
Keep analogue equipment in service using ATA conversion, avoiding unnecessary replacements.
Centralised monitoring
Control multiple systems from one WebAlarm™ cloud dashboard with real-time visibility.
Rapid deployment
Plug-and-play ATA upgrades minimise disruption to tenants and operations.
Reduced downtime
Instant alerts and resilient connectivity ensure faster response and service continuity.
Multi-network redundancy
Auto-connects to the strongest available carrier for maximum uptime and reliability.
Battery backup
Integrated backup delivers up to 24 hours of operation during power outages.
WebAlarm™ | Real-time cloud monitoring for PSTN Landline Replacement
ControlFreq’s WebAlarm™ platform enhances PSTN replacement by providing a centralised, cloud-based dashboard. It ensures all upgraded systems—lift phones, alarms, and telecare devices—remain visible, monitored, and compliant.
Instant alerts
Receive immediate notifications via email, SMS, or push alerts whenever an issue occurs, ensuring rapid response before critical failures escalate. immediate notifications by SMS, voice call, email, or push whenever an event occurs, ensuring rapid response and downtime.proactive approach helps reduce downtime, prevent costly disruptions, and keep your systems running smoothly.
Real-time monitoring
Track the performance of all your LANDLINE-4G devices from one intuitive dashboard, with live metrics on signal strength, battery health, and connection quality. Gain full visibility and control to maintain operational reliability, optimise performance, and ensure compliance at all times.
Replace PSTN landlines with confidence
Future-proof your critical systems with ControlFreq’s ATA-based PSTN Landline Replacement solutions. Protect safety, maintain compliance, and ensure seamless communication after the switch-off.
Frequently asked questions
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The PSTN switch-off is scheduled for December 2025 in the UK, with many exchanges already being phased out. Different countries have different timelines, but most developed nations are in the process of decommissioning their PSTN networks in favor of digital alternatives.
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Yes, LANDLINE-4G is designed to be universally compatible with any system that currently uses a standard PSTN connection. It features standard RJ11 connectors that plug directly into your existing equipment without requiring any modifications or additional adapters.
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LANDLINE-4G includes an integrated battery backup system that provides up to 24 hours of continuous operation during power outages. This ensures that critical communications remain available even when mains power is unavailable, similar to how traditional PSTN lines operated independently of power.
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LANDLINE-4G utilizes multi-network SIM technology that automatically connects to the strongest available network with seamless failover between multiple carriers. This redundancy actually provides greater reliability than traditional PSTN lines, which were vulnerable to physical line damage. Our solutions typically achieve 99.99% uptime.
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No, WebAlarm is an optional add-on service. LANDLINE-4G devices function perfectly without it. However, WebAlarm provides valuable real-time monitoring, alerts, and management capabilities that many customers find essential for mission-critical applications. It's available as a monthly subscription service with different tiers based on your needs.