Business VoIP Calculator UK 2026: Estimate Monthly & Annual Costs Quick Answer Business VoIP in the UK typically costs around £8-£25+ per user, per month for standard hosted VoIP, although the total cost can increase if you need:
desk phones
headsets
call recording
CRM integration
contact centre features
Microsoft Teams Phone
SIP trunks
number porting
installation
upgraded broadband
premium support
A small business with 5-10 users might spend around £50-£250+ per month , while larger businesses, call centres and multi-site organisations can pay significantly more.
Use the calculator below to estimate:
monthly VoIP licence costs
SIP trunking costs
call charges
optional add-ons
hardware costs
setup fees
first-year cost
total contract value
potential monthly savings
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Business VoIP Calculator UK
Estimate your monthly VoIP cost, annual spend, hardware and setup costs, first-year cost and potential savings.
VoIP solution
Hosted VoIP / Cloud PBX Microsoft Teams Phone SIP trunking UCaaS Contact centre VoIP Not sure Choose the phone system your business is considering.
Current phone system
Traditional landlines ISDN Existing VoIP Mostly mobile phones No current business phone system Not sure Used to tailor the migration recommendation.
CRM integration
No Basic CRM integration Advanced CRM integration Not sure CRM integrations can increase monthly cost.
Contact centre features
No Basic queues and reporting Advanced contact centre Sales dialler / advanced outbound Not sure Advanced agent and reporting tools usually cost more.
Need improved broadband or connectivity?
No Yes Possibly Not sure Poor broadband can affect VoIP call quality.
Contract length
12 months 24 months 36 months 60 months Used to estimate total contract cost.
Your estimated business VoIP costs
Estimated monthly VoIP cost
£0
One-off setup / hardware cost
£0
Estimated first-year cost
£0
Estimated total contract cost
£0
Potential monthly saving
£0
Enter your business phone requirements to estimate your VoIP costs.
Recommendation will appear here.
This calculator is an estimate only. Actual VoIP costs vary by provider, number of users, licences, call usage, hardware, number porting, integrations, broadband requirements, support level, contract length and optional features.
How do we work?
Transparent, impartial, and data‑driven reviews made by a team of expert humans, never AI generated – here’s exactly how Compare Your Business Costs helps you find the best deals from trusted UK providers: click here
Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)
Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)
Last Updated: October 2026
Key Takeaways Business VoIP Calculator Costs
Business VoIP usually costs around £8-£25+ per user per month for standard hosted services.
Advanced UCaaS and contact centre platforms can cost significantly more.
Hardware can add £40-£200+ per user if desk phones or headsets are required.
Number porting, setup and installation can create one-off costs.
SIP trunking is priced differently from standard per-user hosted VoIP.
Microsoft Teams Phone may require multiple licences or connectivity components.
Call recording, CRM integration and analytics can increase the monthly price.
VoIP may reduce costs if you are replacing expensive landlines or legacy phone systems.
Your broadband quality matters because poor connectivity can affect call quality.
Compare the total monthly and first-year cost, not just the headline licence price.
How much does business VoIP cost in the UK? Business VoIP pricing varies by provider, number of users and the type of phone system you need.
As a general guide:
VoIP service Typical UK cost guide
Basic hosted VoIP
£8-£15 per user/month
Standard hosted VoIP
£12-£25 per user/month
Advanced hosted VoIP
£20-£40+ per user/month
Microsoft Teams Phone
£10-£30+ per user/month
SIP trunking
£4-£10+ per channel/month
Businesses with an existing PBX
UCaaS
£18-£40+ per user/month
Hybrid and multi-site teams
Contact centre VoIP
£40-£100+ per agent/month
Desk phone
£40-£200+ each
Headset
£20-£150+ each
Softphone and call-heavy users
Number porting
£10-£100+
Businesses keeping existing numbers
Setup and installation
£0-£1,000+
These are guide prices only.
Your actual quote depends on:
number of users
licence level
call usage
hardware
support
integrations
contract length
connectivity
number porting
migration complexity
optional features
Typical VoIP costs by business size
Business size Typical monthly VoIP cost guide
1-3 users
£20-£75+
5 users
£50-£150+
10 users
£100-£300+
25 users
£250-£750+
50 users
£500-£1,500+
100+ users
Quote-based
The cost per user may fall for larger businesses because providers can sometimes offer volume pricing.
However, larger organisations may also need more expensive features such as:
call recording
analytics
contact centre tools
advanced routing
CRM integrations
supervisor dashboards
multi-site management
enterprise support
What affects VoIP pricing? Number of users
A 5-user business will usually pay much less than a 50-user business, although larger organisations may negotiate better per-user pricing.
VoIP platform
Different systems use different pricing models, and common options include:
hosted VoIP
cloud PBX
Microsoft Teams Phone
SIP trunking
UCaaS
contact centre platforms
Hardware
VoIP can run through:
desk phones
computers
smartphones
tablets
headsets
Call charges
Some packages include UK calls while others charge separately for:
landline calls
mobile calls
international calls
premium numbers
conference calls
Number porting
If you want to keep your current business numbers, your provider may charge a porting fee.
CRM integration
Integrating VoIP with CRM platforms can improve productivity but may add monthly fees.
Common integrations include:
Salesforce
HubSpot
Zoho
Microsoft Dynamics
Pipedrive
Call recording
Call recording may be included in higher plans or charged per user.
Businesses should also consider storage and compliance requirements.
Contact centre features
Contact centre tools can include:
call queues
IVR
call recording
analytics
supervisor dashboards
wallboards
agent monitoring
outbound diallers
Hosted VoIP vs Teams Phone vs SIP vs UCaaS
System Best for
Hosted VoIP
Most SMEs
Microsoft Teams Phone
Microsoft 365 businesses
SIP trunking
Existing PBX users
UCaaS
Hybrid and multi-site teams
Contact centre VoIP Sales/support teams
VoIP hardware and setup costs VoIP software is only part of the total cost.
Hardware or setup item Typical guide cost
Basic desk phone
£40-£80
Mid-range desk phone
£80-£150
Premium desk phone
£150-£300+
USB headset
£20-£80
Wireless headset
£80-£250+
Router upgrade
£50-£300+
PoE switch
£50-£500+
Setup and installation
£0-£1,000+
Number porting
£10-£100+
VoIP costs by business type
Business type VoIP option to compare first
Sole trader
Basic hosted VoIP
Small office
Hosted VoIP
Sales team
Hosted VoIP or UCaaS
Call centre
Contact centre VoIP
Recruitment agency
CRM-integrated VoIP
Professional services
Hosted VoIP or Teams Phone
Multi-site business
UCaaS
Existing PBX user
SIP trunking
Remote team
Hosted VoIP or Teams Phone
Customer service team
Contact centre platform
FAQS Business VoIP Calculator Costs How much does VoIP cost per user in the UK?
Standard hosted VoIP commonly costs around £8-£25+ per user per month , although advanced systems can cost more.
How much does VoIP cost for a small business?
A small business with 5-10 users might spend around £50-£250+ per month , depending on licences, hardware and features.
Are VoIP calls free?
Some VoIP packages include UK calls, while others charge separately. International and premium calls may cost extra.
Do I need to buy VoIP phones?
Not necessarily. Staff can use desktop or mobile apps with a headset, although some businesses prefer physical desk phones.
Can I keep my existing business phone number?
Usually yes. Business numbers can normally be ported to a new VoIP provider, although fees may apply.
Is VoIP cheaper than a landline?
Often, especially for businesses replacing multiple traditional lines or legacy phone systems. The exact saving depends on your current costs and the VoIP package selected.
Does VoIP need fast broadband?
VoIP needs stable broadband more than extremely high download speeds. Upload speed, latency, jitter and packet loss are important for call quality.
Can VoIP work over Wi-Fi?
Yes, but wired connections or high-quality business Wi-Fi can provide more consistent call quality.
How much does Microsoft Teams Phone cost?
The total cost depends on your Microsoft licences, Teams Phone licence, external calling method, support and hardware.
What is SIP trunking?
SIP trunking allows an existing compatible PBX to make and receive calls over an internet connection instead of traditional telephone lines.
How many SIP channels do I need?
SIP channels are based on the number of simultaneous calls rather than the total number of employees.
What is UCaaS?
UCaaS stands for Unified Communications as a Service. It combines voice, messaging, meetings and collaboration features in one platform.
Does VoIP support call recording?
Yes. Many VoIP providers offer call recording either as standard or as a paid add-on.
Can VoIP integrate with CRM software?
Yes. Many systems integrate with CRM platforms to show caller records, log calls and support click-to-dial.
Can VoIP support remote workers?
Yes. Remote staff can usually use desktop apps, mobile apps or compatible VoIP phones from different locations.
How long does VoIP installation take?
Simple cloud VoIP can be set up quickly. Larger migrations involving number porting, hardware and multiple sites may take longer.
Can I switch VoIP provider?
Yes, but check contract end dates, notice periods, number porting and early termination fees.
How do I calculate my VoIP costs?
Multiply your monthly licence cost by the number of users, then add call costs, add-ons, connectivity and any recurring fees. Add hardware, setup and porting charges to estimate first-year cost.
How can I reduce VoIP costs?
Compare providers, remove unused licences, avoid unnecessary add-ons, negotiate volume discounts and consider softphones where physical handsets are not required.
How do I compare VoIP quotes?
Compare monthly licence cost, call charges, hardware, setup, integrations, support, contract length, porting and total first-year cost.
Compare Business VoIP Calculator Costs Use the calculator above to estimate your likely costs, then compare quotes based on your actual number of users, hardware requirements and phone system needs.
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Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.
