How Much Does a Business VoIP System Cost in the UK? 2026 Prices
Let's be honest. You are here for real numbers. Not fluff. Not vague answers. You want to know what you will actually pay.
Good news. Here we go.
In 2026, most UK businesses pay between £7 and £40 per user per month for a hosted VoIP or cloud PBX system. That is your starting point. Hardware, call recording, CRM integration, SIP trunking, and broadband can shift the total.
With the PSTN switch off happening soon, this is no longer optional. Old ISDN lines are on borrowed time.
At Cleartwo, we help businesses upgrade with fully managed setup, UK based support, Microsoft Teams voice integration, and a 99.99 percent uptime SLA. No stress. No chaos. Just smooth migration and powerful features without scary big business pricing. That is the vibe.
Business VoIP System Cost UK Quick Breakdown For 2026
Alright. Let's get into the numbers.
Typical business telephony UK pricing looks like this:
- Entry level plans £7 to £14 per user
- Mid tier plans £15 to £24 per user
- Premium plans £25 to £40 per user
- IP phones £50 to £250 each
- Headsets £10 to £150
- Broadband £20 to £60 per month
- Call recording add ons £5 to £15 per user
Example. Ten users on a solid mid tier plan at £18 per user equals £180 per month. Add broadband and call recording. You are likely at £220 to £260 monthly.
Compare that with legacy ISDN at £500 plus. Massive difference. No cap.
Why The PSTN Switch Off Changes Business VoIP System Cost UK
By January 2027 the PSTN network is switched off. That means traditional copper phone lines stop working.
If you are still using old lines, you will need a cloud PBX or SIP trunking solution. There is no workaround. You can read more in our PSTN migration guide.
Waiting until late 2026 is risky. If everyone upgrades at once, installs slow down. Disruption hits revenue fast. Early movers often get better pricing and smoother installs. Simple as that.
What You Actually Get For The Money
This is where it gets interesting.
A modern hosted VoIP or UCaaS system is not just a dial tone. You get features that used to cost thousands upfront.
Most mid tier plans include call queues, auto attendants, voicemail to email, mobile and desktop apps, call recording, CRM integration, Microsoft Teams connectivity, and analytics dashboards.
If your current system does not offer this, it is giving 2010 energy. Upgrading can cut costs and boost productivity at the same time. Huge win.
Cost By Business Size
1 to 5 users
Entry level cloud system. Around £50 to £100 per month including broadband. Ideal for startups and small consultancies.
5 to 20 users
Mid tier hosted VoIP. Expect £150 to £600 per month depending on features. Call recording and CRM integration start to matter here.
20 to 50 users
More advanced setup. Around £500 to £1,800 per month. Often includes detailed reporting and advanced call routing.
For a deeper look check our detailed VoIP pricing comparison blog where we break down real SME scenarios.
Hidden Costs You Should Not Ignore
Let's talk about the bits providers do not always highlight.
Hardware. Not everyone needs a desk phone. Softphones on laptops and mobiles often work fine. That saves money.
Broadband upgrades. VoIP needs stable fibre. Around 0.5 to 1 Mbps per active call. If your internet is weak, budget for an upgrade.
Setup time. DIY looks cheap. But if your team spends 15 hours setting up call flows and integrations, that is real cost. Time is money.
This is why many businesses choose our hosted VoIP implementation service. Everything is configured, tested, and supported by UK engineers at Cleartwo.
DIY Vs Managed VoIP Total Cost
Check this out.
Fifteen users on an £18 per month plan.
Software for one year equals £3,240.
Add internal IT time for setup and CRM integration. Let's say £2,000 in staff cost.
Total equals £5,240.
With a managed model, the £3,240 software cost remains. But setup and support are included. That is a serious difference. That is smart automation in action.
Microsoft Teams Phone Vs Standalone VoIP
Microsoft Teams Phone looks cheap at £7.70 per user for the add on. But you still need calling plans or Direct Routing with SIP trunking. That adds cost and complexity.
For 20 users, Teams Phone with domestic calling can exceed £400 per month once licences stack up.
A standalone cloud PBX with native Teams integration often sits closer to £360 for similar features.
We help businesses set up Microsoft Teams voice integration without the Direct Routing stress. Clean setup. Simple billing. Done.
Compliance And Call Recording Costs
If you work in finance or insurance, pay attention.
Basic call recording is often included. But compliance grade recording with encrypted storage and long retention usually costs £5 to £15 extra per user.
For FCA regulated firms, this is not optional. GDPR rules apply. Audit trails matter.
We explain more in our secure VoIP compliance guide so you can plan properly.
Why CallSwitch One Is Worth Considering
CallSwitch One is a powerful hosted VoIP and UCaaS platform built for UK businesses. It offers cloud PBX features, mobile apps, CRM integration, and reliable call recording in one system.
We are CallSwitch One resellers. That means you get a strong national platform with local Cleartwo support. Better onboarding. Competitive pricing. Real UK engineers who answer the phone.
Some providers sell and disappear. Cleartwo stays with you. Big business features. SME friendly pricing. High key game changing.
What Should You Budget In 2026
Let's simplify it.
If you are a small or mid sized UK business, budget £15 to £25 per user per month for a solid hosted VoIP system with strong features.
Add broadband if required. Keep hardware lean. Use headsets and softphones where possible.
Most firms save 30 to 60 percent compared to legacy systems. You also gain flexibility, easy scaling, and better reporting.
With the PSTN switch off coming, upgrading now is just smart business. Why wait until it becomes urgent? Let's go. You've got this.
Frequently Asked Questions
How much does it cost to switch from PSTN to VoIP in the UK
Most small businesses spend between £500 and £5,000 as a one off migration cost. It depends on size and hardware. Monthly costs usually drop compared to ISDN, so many firms recover setup costs within months.
Is VoIP cheaper than a traditional phone line
Yes. In most cases VoIP is 30 to 70 percent cheaper than legacy PSTN or ISDN. There are no per line rental charges and maintenance is handled in the cloud.
How long does it take to install a hosted VoIP system
For small businesses, setup can take a few days to two weeks. It depends on number porting and configuration. Cleartwo manages setup and testing to avoid downtime.
Can I use Microsoft Teams as my business phone system
Yes. You need Microsoft Teams Phone licences and either a calling plan or Direct Routing. Many businesses choose integrated VoIP solutions as they are simpler and often more cost effective.
Does VoIP include call recording and CRM integration
Mid tier and premium plans usually include call recording and CRM integration. Compliance grade recording with longer retention may cost extra based on regulation needs.
If you are planning your upgrade and want clear pricing with proper UK support, Cleartwo is ready to help. Let's get your business telephony sorted for 2026.
