The UK PSTN (Public Switched Telephone Network) switch-off is the most significant change to business communications since the introduction of broadband. Every traditional BT landline in Wolverhampton — including ISDN2, ISDN30 and analogue copper lines — will cease to work. Migration to VoIP or a cloud-based phone system is not optional: it is required.
The copper telephone network — the system that has underpinned UK voice communications since the 19th century — is being decommissioned. This affects: traditional analogue phone lines, ISDN2 and ISDN30 circuits, BT SoGEA lines used for FTTC broadband, and any equipment that relies on a traditional phone line including some alarm systems, door entry systems and payment terminals.
Migrate to a hosted VoIP system. Modern cloud VoIP platforms (Gamma Horizon, 3CX Cloud, RingCentral) work over your existing broadband connection, typically cost less per month than equivalent ISDN lines, and offer more features — call recording, mobile apps, hunt groups, auto-attendant, voicemail to email.
Your existing phone number transfers via number portability. Your staff can use the same desk handsets (with IP adaptor) or switch to software phones on mobile or desktop. Call us on 01902 283 891 — we manage the full VoIP migration for Wolverhampton businesses including number porting.
The PSTN switch-off is the decommissioning of the UK's traditional copper telephone network. All ISDN and analogue phone lines will cease to work. Businesses must migrate to VoIP or cloud-based phone systems.
Openreach confirmed the switch-off for December 2025 for most UK exchanges, with Wolverhampton included in the nationwide programme.
Your existing phone number can be ported to your new VoIP provider. Number portability means you keep the same 01902 number. We manage the porting process for Wolverhampton businesses.
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