Six leading VoIP platforms. One trusted UK partner with over 35 years in business telecoms. T2K VoIP recommends the right system for your needs — and has the track record to back it up.
Openreach is retiring the traditional UK phone network by 2027. Every business still on a landline or ISDN connection needs to act now. T2K VoIP can migrate your business with zero downtime — keeping your existing numbers and ensuring full service continuity.
With 35 years of UK telecoms experience, T2K VoIP has selected six best-in-class platforms to cover every business size and scenario. We assess your needs and recommend the right fit — not the highest-margin option.
A proven enterprise communications platform with deep roots in UK deployments. T2K VoIP has been a Mitel partner for over two decades — delivering, supporting, and migrating MiVoice Business at scale.
The leading software-based phone system for businesses that want flexibility. 3CX integrates with your CRM and can be hosted by T2K VoIP or on your own infrastructure.
Horizon by Gamma is the UK's most widely deployed hosted VoIP platform — built on Gamma's own carrier network. Fully cloud-based, no on-site hardware required.
Cisco Webex delivered through Gamma's UK network — combining enterprise-grade video conferencing, messaging, and calling in a single unified platform.
The simplest route off the PSTN. Phoneline+ is a direct digital replacement for your traditional landline — same number, same experience, no hardware changes required.
A flexible UCaaS platform unifying telephony, messaging, and meetings in one simple app. Easily manage your entire communications stack via a single self-service portal.
VoIP is significantly cheaper than traditional phone lines for most UK businesses. Here's an honest overview of what to expect across all six platforms T2K VoIP supplies.
| Plan Type | Typical Cost | Platform | Best For |
|---|---|---|---|
| PSTN Replacement | From £7.95/user/month | Phoneline+ | Sole traders and micro businesses replacing a landline |
| Entry Hosted VoIP | From £12.95/user/month | 3CX / Horizon | Small teams, 1–20 users, minimal complexity |
| Business Hosted VoIP | From £11.95/user/month | Horizon / Gamma Webex | Growing businesses needing UC, call recording, CRM |
| UCaaS / Cloud PBX | From £7.99/user/month | Voiceflex Flow | Businesses needing a flexible omnichannel cloud PBX, self-service admin, and native Microsoft Teams integration |
| Enterprise / Mid-Market | Custom — contact us | Mitel MiVoice Business | 50–1,000+ users, complex deployments, existing Mitel infrastructure |
Different industries have different compliance requirements, call volumes, and integration needs. T2K VoIP has experience deploying across all of these sectors.
T2K VoIP serves businesses from Plymouth to Aberdeen, Belfast to Cambridge. All customers receive the same UK-based support regardless of location.
T2K VoIP has been deploying business phone systems since 1999. That's 25 years of migrations, installations, and long-term client relationships — and six platforms to draw on.
"Fantastic company to deal with. We have been trading with them (and formerly Smart Connect) for over 20 years - which says everything you need to know. Also massive thanks to Adam and Tom for the recent transition from ISDN to VoIP."
"We run a dental practice in Thame and i can't begin to express how happy we are with the service from T2K. Our phone lines are great, cost effective and the service support (when needed, which is pretty much only when we want to change things) is fantastic. So responsive and helpful. Could not recommend more highly."
"Absolutely fantastic service, solution and value. Compared to our previous telecoms provider, T2K Voice & Data are in another league. They came up with the perfect telecoms solution for our business at a competitive price & check up on us regularly to make sure everything is working as we'd like. 10/10"
Case Study: Hampshire & Dorset construction firm - To prepare for the UK's PSTN switch-off, T2K migrated their 70-strong team to a resilient, unified 3CX cloud platform.
Read the full case study →Answers to the questions UK businesses ask most before making the switch.
No obligation. No jargon. Just honest advice from a UK-based team that has been deploying business phone systems for over 35 years.
Your trusted technology partner.
