Telecommunications
BEYOND COPPER
Paul Howard, ISP presales director at TP-Link UK&I, outlines what preparing for the 2027 PSTN switch‑off means for channel partners and the practical steps needed to keep customers connected.
T
he UK’s telecommunications landscape is undergoing a monumental shiſt, representing arguably the most significant
infrastructure overhaul since the widespread rollout of broadband. By 31 January 2027, the Public Switched Telephone Network (PSTN) will be officially retired in favour of fully digital, IP- based telephony. Tis transition marks the end of an era for the analogue network that has formed the backbone of British communications for over a century. While the deadline extension from December
2025 to early 2027 has given businesses more time to prepare, it has also inadvertently created a false sense of security. Small and medium- sized businesses (SMBs) cannot afford to be complacent. Te delay was primarily instituted to protect vulnerable consumers and ensure critical national infrastructure elements, like telecare systems and hospital alarms, were safely migrated, but it may have also had the unintended effect of letting businesses de- prioritise. Underestimating the time required to audit,
plan, and upgrade legacy networks puts daily operations in jeopardy. As the revised deadline
26 | September/October 2026
approaches, a sudden rush of late migrations will inevitably lead to a shortage of qualified telecommunications engineers, localised hardware supply constraints, and prolonged wait times. Put simply, those who wait until 2027 to start their migration may find themselves stranded. Now is the time to lay the groundwork for a frictionless transition.
Saying goodbye to the copper age Growing adoption of cloud computing, IoT ecosystems, and AI-driven tools has exposed the limitations of traditional PSTN infrastructure. Ageing copper lines, bound by the physical limitations of electrical signal transmission, simply cannot handle the symmetrical bandwidth and low latency demands of the modern, hybrid workplace. Today’s businesses rely on high-definition video conferencing, real- time cloud collaboration, and data-heavy CRM systems, all of which require a network that copper is fundamentally incapable of supporting at scale. Furthermore, the physical deterioration of
these legacy networks is becoming significantly harder and more expensive to manage. Decades-
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