Cambridge • Business Phone Systems & VoIP

Business Phone Systems Cambridge
Hosted VoIP, Cloud PBX & SIP for Cambridge & Silicon Fen

T2K Voice & Data supplies business phone systems in Cambridge, from software and deep-tech companies at the Science Park and in the city centre to biotech businesses around the Biomedical Campus, professional firms near the station and growing businesses in Cambourne and Histon. We're a UK-based telecoms provider with 35+ years' experience, serving customers across the country. We set up Gamma Horizon, 3CX, Mitel and three other VoIP platforms remotely, and your 01223 numbers come with you.

Keep Your 01223 Numbers
Remote Setup, Site Visits When Needed
35+ Years UK Experience
🛶
Cambridge
Cambridgeshire
149,000
Population (2024)
6
Platforms Supported
35+
Years in Telecoms
Local Dialling Code
01223
Cambridge · T2K Voice & Data

Cambridge Business Telephone Systems, Set Up Remotely

T2K Voice & Data is an independent, UK-based telecoms provider serving customers across the country, Cambridge included. Hosted systems are configured and tested before go-live, handsets arrive pre-provisioned and 01223 numbers port through the network, so most Cambridge projects need no site visit. If yours does, we'll agree it before you sign.

One supplier covers the lot for Cambridge businesses: hosted VoIP, PBX, SIP trunks, Teams calling, broadband, leased lines and mobiles. No finger-pointing between providers when something needs fixing.

35+
Years in UK Telecoms
4.9/5
Rated on Google
6
Platforms — Vendor Agnostic
Talk to a Specialist About Your Cambridge Business →
Cambridge Business

Cambridge's Business Landscape & What It Needs from a Phone System

Cambridge, often called Silicon Fen, has one of Europe's densest clusters of technology and life sciences businesses, many of them spin-outs from the university. Science and business parks to the north and south of the city sit alongside professional services, venture capital and a large education sector.

Tech and biotech companies tend to grow fast and work in hybrid teams, so they want softphones, Microsoft Teams calling and a system that adds users in minutes. Labs and research sites need reliable routing and clear call handling across several buildings.

Professional firms and investors near the station and in the centre need call recording and consistent caller ID, while engineering businesses on the surrounding parks need ring groups and handsets for workshops. Moving off ISDN or analogue lines follows the same steps for all.

Local Numbers

Keep Your Cambridge 01223 Number — VoIP or Mobile

Every Cambridge 01223 number can move to a VoIP phone system or divert straight to a mobile, so customers and partners keep calling the number they know.

01223 XXX XXX
Cambridge Geographic Number

01223 Numbers Work with VoIP or Mobile Divert

Moving to Gamma Horizon, 3CX or Mitel, or just want calls on your mobile? Your 01223 number comes with you either way. T2K Voice & Data handles porting end to end, with no gap in service.

  • Keep your existing Cambridge 01223 number
  • Port to any VoIP platform (Horizon, 3CX, Mitel, etc.) or divert to mobile
  • No gap in service during the switch
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Buy or Port a Cambridge 01223 Number
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Systems

Business Phone Systems We Supply in Cambridge

From hosted VoIP to an on-premise PBX, T2K Voice & Data supplies six platforms to Cambridge firms. Because we aren't tied to any of them, we recommend what fits your team and growth plans.

HZN
Gamma Horizon
Best for: Cambridge SMEs (5–500 users)

Gamma's flagship hosted platform, running on Gamma's own UK network. It suits Cambridge offices and labs that want dependable calling, a mobile app and Teams integration without any kit in the comms cupboard.

  • Hosted cloud — zero on-site hardware
  • Keep your Cambridge 01223 numbers
  • Microsoft Teams integration available
3CX
3CX
Best for: Fast-Growing Tech Teams

A software IP PBX with deep CRM integration that scales easily as you hire, popular with Cambridge start-ups and scale-ups. T2K Voice & Data is a 3CX Titanium Partner.

  • Native CRM integration (50+ platforms)
  • Cloud, on-prem, or hybrid deployment
  • Video conferencing included
MITEL
Mitel MiVoice Business
Best for: Large & Multi-Site Organisations

An enterprise unified communications platform for larger Cambridgeshire organisations needing advanced routing or on-premise control. T2K has decades of Mitel experience.

  • Multi-site unified communications
  • Enterprise contact centre capabilities
  • Resilient architecture
WBX
Gamma Webex
Best for: Hybrid & Research Teams

Cisco Webex calling, meetings and messaging over Gamma's UK carrier network. A natural fit for research teams collaborating across sites and time zones.

  • Video-first unified communications
  • Cisco Webex platform quality
  • Gamma UK carrier delivery
PL+
Phoneline+
Best for: Simplest PSTN Replacement

The low-cost route off copper for a Cambridge shop, practice or small office. No new phones and no engineer visit: your 01223 number simply moves onto a digital line.

  • No new hardware — use existing phones
  • Lowest-cost PSTN replacement
  • Keep your Cambridge 01223 number
FLOW
Voiceflex Flow
Best for: UCaaS, CRM & Teams integration

A flexible UCaaS platform with calls, messaging and meetings in one app. Suits Cambridge firms built around Microsoft 365.

  • Native Microsoft Teams integration
  • Advanced routing with ACD and IVR
  • Integrates seamlessly with major CRMs
Not sure which system fits your Cambridge business? T2K Voice & Data offers free consultations with no sales pressure. We'll review your setup and give you an honest recommendation.
Free tool
Not sure which phone system is right for you?
Answer 7 quick questions about your business and our phone system finder will match you against all six systems T2K Voice & Data provides — returning a ranked recommendation in under two minutes.
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Takes under 2 minutes · Free to use
FAQ

Business Phone Systems & VoIP in Cambridge — Frequently Asked Questions

Questions we regularly hear from Cambridge businesses comparing VoIP providers and phone systems.

Can I keep my Cambridge 01223 phone numbers when switching to VoIP?
Yes. Any 01223 number can be ported to a VoIP phone system with no gap in service. T2K Voice & Data manages the porting for you, whichever platform you choose.
Do you provide on-site support for Cambridge businesses?
Most Cambridge phone systems are installed and supported remotely, and most faults are fixed over a remote session. Where a visit is genuinely needed, such as a multi-building DECT install or an on-premise PBX, we plan it with you and confirm it before you sign.
How much does a business phone system cost in Cambridge?
For most Cambridge SMEs with 5–50 users, hosted platforms such as Gamma Horizon or 3CX cost around £10–£20 per user per month. Larger and multi-site organisations usually suit Mitel or 3CX on custom pricing. Every quote is itemised, with no hidden fees.
How long does a VoIP migration take for a Cambridge business?
A single-site Cambridge business is typically live within a couple of weeks of sign-off. Larger rollouts across several sites usually take 4–8 weeks, and the switch itself happens out of hours.
Can a phone system scale as our start-up grows?
Yes. Hosted platforms let you add users, numbers and sites in minutes from an online portal, with no new lines or hardware beyond handsets. You only pay for the users you have.
Do Cambridge businesses need to replace analogue and ISDN phone lines?
Yes. Analogue and ISDN services are being withdrawn across the UK, including every exchange in Cambridge and Cambridgeshire, so lines like ISDN2, ISDN30 and standard analogue lines need replacing with VoIP, SIP or a digital alternative. Check where your lines stand with our PSTN switch-off checker.
Coverage Area

Cambridge Postcodes We Serve

We supply business phone systems and VoIP across every CB postcode district, covering Cambridge, Ely, Newmarket, Haverhill and Saffron Walden. Expand a group below to find your area.

Cambridge City & Inner Suburbs CB1 – CB5 ›
CB1City Centre (south) & the station
CB2City Centre (west) & Biomedical Campus
CB3North West Cambridge & Girton
CB4North Cambridge & Science Park
CB5East Cambridge
Outer Cambridge & Villages CB21 – CB25 ›
CB21Great Abington & Linton
CB22Babraham, Sawston & Shelford
CB23Cambourne & Bar Hill
CB24Histon, Milton & Cottenham
CB25Bottisham & Waterbeach
Ely & The Fens CB6 – CB7 ›
CB6Ely (west) & Sutton
CB7Ely city centre & Soham
Newmarket & Haverhill CB8 – CB9 ›
CB8Newmarket
CB9Haverhill
Saffron Walden Area CB10 – CB11 ›
CB10Saffron Walden (north)
CB11Saffron Walden (south) & Newport

Not seeing your postcode? Get in touch — we serve customers right across the UK.

Nearby Areas

Cambridge Business Districts & Nearby Towns

We have dedicated pages for three Cambridge-area business districts, and supply phone systems across the East of England. Distances are straight-line from Cambridge city centre.

Ready to Upgrade Your Cambridge Business Phone System?

Talk to T2K Voice & Data about a new business phone system for your Cambridge business. We'll keep your 01223 numbers, plan the cutover for outside working hours and give you straight answers from 35+ years in telecoms.

📞 Call us on 0808 202 3200 — Mon–Fri, 9am–5pm