01/04/2026
🚨 With the UK’s analogue landlines being withdrawn this year, we’re hearing from more organisations who’ve just discovered that their lift phones, fire/intruder alarms, door entry systems and help points are still running on PSTN lines.
Once the old network is switched off, these systems won’t be able to signal. This creates safety, compliance and insurance risks.
We’ve just updated our PSTN guidance to help you quickly check what might be affected across your buildings, including:
🛗 Lift emergency autodiallers
🔔 Fire, intruder & telecare alarm signalling
🚪 Door entry & intercom systems
🆘 Emergency phones, help points & access control
If you'd like support reviewing your sites, we can help identify which lines need replacing and recommend fully managed digital alternatives.
👉 Check our updated PSTN replacement guidance : https://spectrum-coms.co.uk/services/pstn-replacement/
Replace PSTN/ISDN, lift lines and alarm signalling with reliable digital solutions—resilience, number porting, LTE backup, UK‑wide rollout.