Voice and unified communications

Voice systems, sized for small teams. Engineered like the enterprise ones.

Two decades of hosted telephony and contact-centre voice engineering, including operations at one of the country’s largest VoIP carriers and work on global enterprise contact centres. Winterhill brings that into the small-business setup quietly: phones that just work, numbers the business actually owns, and call paths designed rather than configured by accident.

A working day on a small-business desk: an open laptop showing a video call with abstracted illustrated participant tiles in a clean grid, a matte-black desk phone at rest beside it with the handset on its cradle, a cream ceramic mug of dark coffee and a kraft notebook with a fountain pen on top. Warm late-afternoon light from a sash window.

What Winterhill covers

  • Microsoft Teams Phone deployment, direct routing and call queues.
  • Hosted PBX rollout and ongoing operations, with strong working knowledge of the major UK carriers.
  • SIP trunking, number porting and supplier choices that do not lock the business in.
  • Session Border Controllers, dial plans, call routing and emergency-call configuration.
  • Contact-centre design and operations: queues, IVR, recording, supervisor tooling.
  • Migration off analogue and ISDN lines ahead of the 2027 PSTN switch-off (switch-off audit here).
  • Compliance basics around recording, retention and access to call data.

Why this matters

Voice is the part of the IT stack most small businesses notice last and feel hardest when it breaks. A poorly-cut-over phone system loses sales, drops callbacks and quietly trains customers to ring someone else. Most generalist MSPs treat voice as bolt-on. Winterhill treats it as the core skill it actually is.