Slough • Business Phone Systems & VoIP

Business Phone Systems Slough
Hosted VoIP, Cloud PBX & SIP for Slough & East Berkshire

T2K Voice & Data supplies business phone systems in Slough, from tech, data and pharmaceutical businesses on Slough Trading Estate and the Bath Road to Heathrow-linked logistics firms in Colnbrook and Poyle, and professional offices in the town centre, Langley and Burnham. 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 01753 numbers come with you.

Keep Your 01753 Numbers
Remote Setup, Site Visits When Needed
35+ Years UK Experience
🏢
Slough
Berkshire
167,000
Population (2024)
6
Platforms Supported
35+
Years in Telecoms
Local Dialling Code
01753
Slough · T2K Voice & Data

Slough Business Telephone Systems, Set Up Remotely

As an independent, UK-based provider serving customers across the country, T2K Voice & Data supports plenty of businesses in Slough without needing to be on the doorstep. Platforms are set up centrally, handsets arrive pre-configured and 01753 numbers move across through the network, so most Slough installations happen without a visit. Where one is needed, such as warehouse DECT, we agree it before you sign.

Alongside cloud and on-premise phone systems, we provide the connectivity they rely on, from business broadband and leased lines to mobiles and SIP trunks, so Slough customers have a single supplier to call.

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

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

Slough Trading Estate, often described as Europe's largest industrial estate in single ownership, is home to data centres, tech, pharmaceutical and manufacturing businesses. The Bath Road corridor adds office headquarters, while Colnbrook and Poyle serve Heathrow's freight and logistics supply chain.

Tech and data businesses usually want softphones, Microsoft Teams calling and integrations with CRM and helpdesk tools. Pharmaceutical and manufacturing sites need reliable routing across large buildings and shift patterns.

Heathrow-linked freight and logistics firms need calls that follow staff across warehouses and yards, plus out-of-hours routing, while professional offices need call recording and consistent caller ID. Moving off ISDN or analogue lines follows the same steps for all.

Local Numbers

Keep Your Slough 01753 Number — VoIP or Mobile

Every Slough 01753 number can move to a VoIP phone system or divert straight to a mobile. 01753 also covers Windsor, Gerrards Cross and Iver, so callers across the area see a local number.

01753 XXX XXX
Slough Geographic Number

01753 Numbers Work with VoIP or Mobile Divert

Switching to a hosted platform such as Gamma Horizon or 3CX, or simply diverting calls to a mobile? Either way your 01753 number moves with you, and we manage the port so there's no break in service.

  • Keep your existing Slough 01753 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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Systems

Business Phone Systems We Supply in Slough

T2K Voice & Data supplies six business telephone system platforms to Slough firms, from fully hosted VoIP to on-premise PBX. We're vendor-neutral, so we recommend what suits your sites and integrations.

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

A fully hosted system from Gamma, one of the UK's largest business carriers. Popular with Slough offices because there's nothing to maintain and new users can be added in minutes.

  • Hosted cloud — zero on-site hardware
  • Keep your Slough 01753 numbers
  • Microsoft Teams integration available
3CX
3CX
Best for: Tech Sales & Support Teams

A software IP PBX with deep CRM and helpdesk integration, popular with Thames Valley tech firms. 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: Head Offices & Large Organisations

An enterprise unified communications platform for larger organisations needing advanced routing, resilience 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 & Collaboration-First Teams

Cisco Webex calling, meetings and messaging over Gamma's UK carrier network. Suits Bath Road teams working across offices and home.

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

The simplest way to move a Slough shop, practice or small office off traditional analogue lines. Keep your 01753 number and existing handset, with no new hardware.

  • No new hardware — use existing phones
  • Lowest-cost PSTN replacement
  • Keep your Slough 01753 number
FLOW
Voiceflex Flow
Best for: UCaaS, CRM & Teams integration

A flexible UCaaS platform with Teams calling, IVR and CRM integration in one app. A good match for Slough firms on Microsoft 365.

  • Native Microsoft Teams integration
  • Advanced routing with ACD and IVR
  • Integrates seamlessly with major CRMs
Every Slough business is different, so we start with a free review of your current lines, numbers and contracts before recommending anything. There's no sales pressure and no obligation.
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FAQ

Business Phone Systems & VoIP in Slough — Frequently Asked Questions

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

Can I keep my Slough 01753 phone numbers when switching to VoIP?
Yes. Porting moves your 01753 number to the new system, so callers dial exactly the same number. T2K Voice & Data manages the request and schedules the switch, so there's no gap in service.
Do you provide on-site support for Slough businesses?
Most Slough phone systems are installed and supported remotely, and most faults are fixed over a remote session. Where a visit is genuinely needed, such as warehouse DECT 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 Slough?
For most Slough SMEs with 5–50 users, hosted platforms such as Gamma Horizon or 3CX cost around £10–£20 per user per month. Head offices and larger 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 Slough business?
Timescales depend on size: most single-site Slough businesses are live within a couple of weeks, multi-site rollouts within 4–8 weeks. We plan the cutover for evenings or weekends.
Can our phone system integrate with Microsoft Teams?
Yes. Gamma Horizon, 3CX and Voiceflex Flow all work with Microsoft Teams, from presence sync to full Teams calling on your 01753 numbers. We'll recommend the right approach for how your team works.
Do Slough businesses need to replace analogue and ISDN phone lines?
Yes. Openreach is retiring the UK's traditional PSTN and ISDN network, including every exchange in Slough and East Berkshire, so businesses still on analogue lines, ISDN2 or ISDN30 need to move to VoIP, SIP trunks or a digital line replacement. Check where your lines stand with our PSTN switch-off checker.
Coverage Area

Slough Postcodes We Serve

We supply business phone systems and VoIP across every SL postcode district, covering Slough, Windsor, Maidenhead, Marlow, Gerrards Cross and Iver. Expand a group below to find your area.

Slough & Inner Suburbs SL1 – SL2 ›
SL1Slough town centre, Trading Estate & Burnham
SL2Britwell & Farnham Common
Slough East, Langley & Colnbrook SL3 ›
SL3Langley, Colnbrook, Poyle & Datchet
Windsor, Eton & Ascot SL4 – SL5 ›
SL4Windsor & Eton
SL5Ascot & Sunninghill
Maidenhead & Surrounds SL6 ›
SL6Maidenhead & Taplow
Marlow & Bourne End SL7 – SL8 ›
SL7Marlow
SL8Bourne End
Gerrards Cross & Iver SL0, SL9 ›
SL0Iver & Richings Park
SL9Gerrards Cross & Chalfont St Peter

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

Nearby Areas

Slough Business Districts & Nearby Towns

We have dedicated pages for three Slough business districts, and supply phone systems across the Thames Valley and London. Distances are straight-line from Slough town centre.

Ready to Upgrade Your Slough Business Phone System?

Whether you're replacing ISDN, an old PBX or a single analogue line, T2K Voice & Data can move your Slough business to VoIP while keeping your 01753 numbers and your phones working throughout.

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