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Connected systems · 2026-10-10

PSTN Switch-Off Deadline Looms for Fleet Operators

The Public Switched Telephone Network (PSTN) is being withdrawn across the UK, with BT's analogue system ceasing completely by January 2027. Fleet operators managing depots, maintenance facilities and remote sites must migrate to digital Voice over IP (VoIP) systems or risk losing connectivity for everything from office phones to security alarms and legacy telematics equipment that relies on landline connections.

For facilities management and service businesses running vehicle fleets, the switch-off has practical implications beyond office telephony. Many depot security systems, barrier controls, fuel management systems and older telematics units use the PSTN for data transmission. Fleet managers overseeing multiple sites need to audit every connected device and ensure continuity of critical systems that keep vehicles on the road and operations secure.

The transition window is narrowing, and supply chain delays for digital equipment mean early planning is essential. Fleet operators should identify which systems depend on analogue lines, budget for hardware upgrades, and test new VoIP solutions under real-world conditions. Service businesses with field engineers may also need to upgrade mobile connectivity for remote diagnostics and job management platforms.

Bluepoppy helps fleet and facilities managers navigate technology transitions that affect vehicle operations and site management. Our Fleet Cost Review includes a look at connected systems and communication dependencies across your fleet footprint, ensuring your vehicles and facilities remain operational through infrastructure changes. Let's make sure your fleet isn't caught offline.

Bluepoppy view: The PSTN switch-off is a hidden fleet risk—audit your depot systems now before the 2027 deadline forces costly emergency upgrades.

Source: FMUK Online — summarised and written from a Bluepoppy perspective. We don’t reproduce the original article.

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