VoIP and connectivity
Business phone and PSTN switch-off check.
Winterhill can help small businesses understand phones, numbers, hosted VoIP, SIP, broadband and the UK PSTN switch-off deadline of 31 January 2027.
What Winterhill can check
- Whether you still rely on analogue or ISDN lines.
- What devices may break when legacy lines are retired.
- Whether VoIP, mobile or broadband changes are needed.
- Which supplier conversations should happen before anything is ordered.
Why this sits inside the wider IT setup
Phones rarely stand alone. They touch broadband, numbers, supplier contracts, mobiles, Microsoft Teams, call routing, cabling and business continuity. Winterhill treats communications as part of the wider small-business setup.
Why this page exists
Phones and lines are familiar territory.
Winterhill brings 20+ years across IT and voice — small-business phone systems up and down the UK, hosted telephony, the largest cloud platforms and global enterprise environments. Phones, lines, numbers and the broadband behind them are familiar territory.
The PSTN switch-off is the kind of thing that quietly catches small businesses out: alarm lines, lift phones, door entry, card terminals and old fax devices on copper that nobody has thought about for a decade. Worth a half hour and a checklist now, rather than a panic in 2026.