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PSTN switch off

What you need to know

What is the PSTN switch-off

For over a century, the PSTN has been the backbone of analogue telephony in the UK. This copper-based network enabled real-time voice communication and a host of related services. However, with advancements in technology, older networks are being replaced by fibre-optic systems and Voice over Internet Protocol (VoIP) services. The shift is driven by the need for faster, more reliable digital communications and more efficient data handling, with major providers like BT Openreach planning to retire traditional PSTN and ISDN lines by the end of 2025. There are also some factors that have gone into the decision to phase out the PSTN lines. One of the factors is that the copper wires used to support the PSTN system can easily degrade over time and can be susceptible to environmental factors like the weather. Also, the current PSTN system is struggling to meet the demands of modern-day requirements for communication which is a sign that it may be time for change.

What Does the PSTN switch off Mean for Everyday Communications?

For the average user, the transition to a digital network may result in changes to the way telephone services are delivered. Many modern routers now offer analogue converter sockets to support VoIP calls. In practice, most households and businesses will be connected via fibre, meaning that the familiar landline system will soon be a relic of the past. Providers are already advising customers on the necessary upgrades and precautions to ensure a seamless transition.

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What the PSTN switch off means for lifts

While the switch-off may seem like a matter that concerns only conventional telephone services, its effects reach much further. Many emergency systems – including those installed in lifts – have traditionally relied on a PSTN connection to operate reliably. For instance, the auto-dialler systems in lifts, which are mandated by safety regulations such as BS EN81-28, use analogue signals to connect trapped passengers with emergency response services. With the retirement of PSTN lines, these systems will no longer function unless they are upgraded or retrofitted with digital alternatives.

The Safety aspects

Safety is important in any building, and for lifts, an emergency call system is not just a convenience – it is a critical part of passenger safety. When an emergency button is pressed, the existing auto-dialler relies on the PSTN to initiate a two-way communication with a rescue service. Once analogue lines are phased out, lifts that have not been upgraded risk losing this essential safety feature, potentially leaving passengers stranded and non-compliant with regulations.

Modern Solutions for Legacy Systems

Recognising this challenge, many providers are now offering GSM solutions tailored for lifts. These digital solutions use mobile network signals to ensure reliable connectivity, even in the event of power cuts, thanks to integrated battery backups. These systems not only maintain safety but also often reduce long-term operating costs through lower line rental fees and more efficient maintenance processes.

What You Should Do

If you manage a building or are responsible for maintenance, now is the time to review your communication infrastructure. It’s important to upgrade your lifts emergency phone system before it becomes unsafe and not able to meet the requested regulations. Consider these steps if you think your lifts communication system still relies on PSTN:

  • Assess Your Current Systems: Identify if your lift emergency communication relies on traditional PSTN lines.
  • Consult with Experts: Engage with service providers and system specialists who can advise on upgrading to GSM solutions.
  • Plan Ahead: Early adoption of digital alternatives will prevent last-minute rushes and ensure that your systems remain compliant with safety regulations.
  • Budget for Upgrade Costs: While the initial investment may be significant, the long-term savings and enhanced safety features make the transition worthwhile.

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