Best VoIP for Call Centres UK 2026 Quick Answer
Call centres usually need more than a standard business VoIP phone system thanks to high-volume sales and customer-service teams should compare cloud contact centre platforms with advanced call routing, queues, recording, CRM integrations, real-time reporting and supervisor tools.
The main options worth comparing include:
RingCentral RingCX – worth comparing for omnichannel customer-service teams8×8 Contact Center – relevant to larger and multi-site operationsAircall – particularly suited to CRM-led sales and support teamsDialpad – worth comparing where AI transcription, summaries and coaching are important
Standard business VoIP can start from around £10-£30 per user/month, but a true contact-centre platform will usually cost more because it adds advanced routing, analytics, recording, workforce tools and supervisor features.
Comparing a phone system for a sales or support team?
This quote service is for UK businesses comparing hosted VoIP, cloud contact centres, multi-user phone systems, call routing, recording, CRM integrations and high-volume business calling .
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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
Call centres often need a contact-centre platform rather than basic hosted VoIP.
Call queues, IVR, recording and analytics are core requirements for most high-volume teams.
CRM integration becomes particularly important for sales and customer-service workflows.
Supervisor tools such as monitoring, whisper and barging can improve coaching and quality control.
AI transcription and summaries can be useful, but should not drive the buying decision on their own.
Remote call-centre agents need reliable internet, suitable headsets and secure cloud access.
Total cost depends on agent numbers, features, integrations, support and contract terms.
Compare the complete contact-centre package rather than only the advertised VoIP licence.
Does a Call Centre Need Standard VoIP or a Contact Centre Platform? Most small businesses can run their phones on standard hosted VoIP, but call-heavy sales and support teams often need a contact-centre platform.
Requirement Standard hosted VoIP Cloud contact centre
Basic inbound/outbound calls
Yes
Yes
Business numbers
Yes
Yes
Basic call queues
Often
Yes
Advanced skills-based routing
Limited
Yes
Call recording
Often optional
Common
Live supervisor monitoring
Limited
Yes
Whisper and barge
Less common
Common
CRM/helpdesk integration
Varies
Usually a core feature
Agent analytics
Basic
Advanced
Omnichannel messaging
Usually limited
Often available
Workforce management
No/limited
Available on advanced platforms
If your requirement is simply a few employees sharing inbound calls, standard hosted VoIP may still be enough.
If you need dozens of agents, advanced queueing, coaching, reporting and customer-data integrations, compare contact-centre platforms.
Which Call Centre VoIP System Should You Compare?
Your team Best starting point Why
5-15 sales/support users
Advanced hosted VoIP or Aircall-style platform
CRM integration and simple call management
15-50 agents
Cloud contact centre
More advanced queues, reporting and supervision
50+ agents
Enterprise contact-centre platform
Scaling, workforce tools and complex routing
CRM-heavy sales team
Aircall, Dialpad or RingCentral
Sales workflows and integrations
Customer-service team
RingCX, 8×8 or Aircall
Inbound routing and support workflows
AI-focused operation
Dialpad or AI-enabled contact-centre platform
Transcription, summaries and coaching
Remote agents
Cloud contact centre
Softphones and central administration
Multi-site operation
Enterprise cloud contact centre
Centralised routing and reporting
Compare Call Centre Phone Systems
Best VoIP and Contact Centre Providers to Compare There is no single best provider for every call centre. Different platforms suit different sales, support and customer-service models.
Provider/platform Worth comparing for Main strengths What to check
RingCentral RingCX Customer-service and omnichannel teams
Voice, digital routing, analytics and workforce tools
Feature tier, integrations and complete licence cost
8×8 Contact Center Larger and multi-site teams
Cloud communications, analytics and contact-centre functionality
Quote structure and required feature tier
Aircall Sales and support teams
CRM integrations, call recording and workflow tools
Minimum licences, AI/add-ons and UK calling costs
Dialpad AI-enabled call teams
Transcription, summaries and cloud calling
Which AI/contact-centre features require higher plans
For broader platform comparisons, see our best business VoIP providers UK guide.
Compare Call Centre VoIP Providers
What Features Does a Call Centre Phone System Need?
Feature
Priority
Why it matters
Call queues
Essential
Manages high inbound call volumes
IVR / auto-attendant
Essential
Routes callers to the right department
Call recording
Usually essential
Training, quality control and some compliance workflows
Real-time reporting
Essential for larger teams
Shows queue and agent performance
CRM/helpdesk integration
Very important
Connects calls with customer records
Call monitoring
Important
Helps supervisors manage quality
Whisper/barge
Useful
Supports live coaching and intervention
Queue callback
Useful
Reduces customer waiting time
AI transcription
Optional/useful
Automates notes and call summaries
Sentiment/conversation analytics
Optional
Can support coaching and QA
Workforce management
Important at scale
Helps forecast and schedule agents
Omnichannel
Use-case dependent
Combines voice, messaging and digital support channels
How Much Does Call Centre VoIP Cost? Call-centre software usually costs more than basic hosted VoIP because it includes advanced routing, reporting, integrations and agent-management tools.
System type Indicative cost Best for
Advanced hosted VoIP
£20–£40+ per user/month
Small sales/support teams
Cloud contact centre
£30–£60+ per agent/month
Medium-sized call centres
Advanced contact centre
£50–£100+ per agent/month
Larger support operations
Enterprise/omnichannel platform
Quote-based
Large or complex organisations
Additional costs can include:
AI features
recording storage
CRM integrations
workforce management
quality management
international calls
numbers
implementation
support
headsets
How Much Does a 10-Agent Call Centre Cost? A small 10-agent operation using a cloud contact-centre platform could broadly spend:
Example cost Monthly amount
10 licences at £30 each
£300
10 licences at £50 each
£500
Additional integrations/AI/support
Varies
This means a realistic starting comparison might be around £300-£500+ per month for ten agents, before implementation, add-ons and calling charges – the best way to compare is therefore to request quotes using the same number of agents and feature requirements.
Call Centre VoIP for Sales Teams Sales teams should prioritise tools that connect calls directly with the sales process – useful features include:
Salesforce or HubSpot integration
click-to-call
power dialling
automatic call logging
call recording
transcription
call summaries
coaching
disposition codes
conversion analytics
Aircall, Dialpad and RingCentral are all worth comparing for this use case. See our VoIP for sales teams guide for more detail.
Call Centre VoIP for Customer Support Customer-service teams often place more emphasis on inbound routing than outbound sales tools, so you should compare:
skills-based routing
queue callbacks
IVR
helpdesk integrations
real-time queue dashboards
service-level reporting
supervisor monitoring
quality management
customer history
Can a Call Centre Run Fully Remotely? Yes. Cloud contact-centre platforms allow agents and supervisors to work from different locations.
Remote agents typically need:
a laptop or desktop computer
a VoIP/contact-centre application
a good-quality headset
a reliable internet connection
secure account access
Supervisors can often monitor queues and agents centrally through the cloud platform.
See our VoIP for remote teams guide if your workforce is distributed.
Do Call Centre Agents Need Desk Phones? No! Many modern contact centres use:
desktop softphones
browser-based applications
USB headsets
Physical VoIP desk phones can still be useful for some teams, but they are no longer necessary for every agent.
How Much Bandwidth Does a Call Centre Need? Voice itself uses relatively little bandwidth.
Using roughly 100 Kbps per concurrent standard VoIP call as a planning figure:
Concurrent calls Approximate voice bandwidth
10 calls
1 Mbps
25 calls
2.5 Mbps
50 calls
5 Mbps
100 calls
10 Mbps
The bigger concern is usually network stability and everything else sharing the connection.
Call centres should assess:
latency
jitter
packet loss
upload capacity
network congestion
QoS
backup connectivity
See our VoIP bandwidth requirements guide .
What Call Quality Does a Call Centre Need? As practical targets, aim for:
latency below 150ms one way jitter below 30ms packet loss below 1%
Call-heavy teams are particularly sensitive to poor connectivity because even small quality issues are repeated across hundreds or thousands of conversations.
See our acceptable jitter and latency guide and VoIP call quality guide .
Does a Call Centre Need a Leased Line? Not automatically – g ood FTTP or business broadband may support a smaller contact centre if the connection is stable and has enough headroom.
A business leased line becomes more relevant where:
voice is business-critical
you have many simultaneous calls
you need stronger service guarantees
your contact centre shares bandwidth with heavy cloud usage
internet outages have a significant commercial impact
Also consider backup connectivity rather than relying on one connection alone.
Why QoS Matters for Call Centres Quality of Service helps prioritise voice traffic when the network becomes busy.
This matters because a file download can tolerate delay, whereas a late voice packet can immediately affect a live customer conversation.
QoS is particularly useful where many agents share one business connection.
Call Recording and Compliance Call recording can support:
training
quality assurance
dispute resolution
regulated workflows
However, businesses should not enable recording without considering:
data protection
access permissions
retention periods
storage location
customer notification where appropriate
See our VoIP security checklist when reviewing call-recording and platform security.
AI in Call Centre VoIP
AI features are increasingly built into cloud communications platforms, so depending on the provider, they can include:
live transcription
automatic summaries
action-item extraction
sentiment analysis
call scoring
agent coaching
AI voice agents
These can be useful, but they should be treated as part of the wider buying decision rather than a substitute for reliable routing, reporting and integrations.
What Should You Compare in a Call Centre Quote? Before requesting quotes, prepare:
number of agents
number of supervisors
expected simultaneous calls
inbound versus outbound call volumes
CRM/helpdesk software
call-recording requirements
IVR and queue requirements
remote-working needs
international calling
numbers to port
analytics and reporting needs
AI requirements
workforce-management requirements
current monthly cost
contract end date
This makes it much easier to compare providers on a like-for-like basis.
Compare Call Centre Quotes
Our Verdict: What Is the Best VoIP for Call Centres? The best system depends on how your agents work and how sophisticated your call operation is.
Small sales/support teams: compare Aircall, Dialpad and advanced hosted VoIP.Growing customer-service teams: compare RingCentral RingCX, 8×8 and Aircall.AI-led teams: Dialpad and other AI-enabled contact-centre platforms are worth comparing.Large or multi-site operations: compare enterprise cloud contact-centre platforms rather than basic VoIP.
The most important distinction is whether your team needs a business phone system or a full cloud contact centre . If you’re still deciding between hosted VoIP, Teams Phone, SIP and contact-centre systems, start with our Business VoIP Phone Systems UK pillar.
Compare Call Centre VoIP Providers
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Frequently Asked Questions What is the best VoIP system for a call centre?
There is no single best option. Aircall can suit smaller sales and support teams, while RingCentral and 8×8 are worth comparing for larger customer-service operations. Dialpad is particularly relevant where AI transcription and coaching matter.
How much does call centre VoIP cost?
Advanced VoIP can start from around £20-£40+ per user/month, while cloud contact-centre systems commonly cost around £30–£100+ per agent/month depending on features.
What is the difference between VoIP and contact-centre software?
VoIP provides internet-based calling. Contact-centre software builds on that with advanced queues, routing, monitoring, analytics, CRM integrations and supervisor tools.
Can a call centre run completely in the cloud?
Yes. Cloud contact-centre systems allow agents and supervisors to work from offices, homes or other locations through internet-connected applications.
Do call-centre agents need desk phones?
No. Many agents use desktop applications and USB headsets instead of physical desk phones.
How much bandwidth does a call centre need?
A standard voice call may need around 100 Kbps. Fifty simultaneous calls therefore represent roughly 5 Mbps of voice traffic, but businesses also need capacity for other internet services.
Does a call centre need a leased line?
Not necessarily. Smaller centres may work well over stable FTTP or business broadband. Leased lines become more relevant where calls are business-critical or stronger service guarantees are required.
Which VoIP is best for sales teams?
Aircall, Dialpad and RingCentral are worth comparing because of their CRM integrations, recording, analytics and sales-workflow features.
Which VoIP is best for customer support?
RingCentral RingCX, 8×8 and Aircall are all relevant depending on the size of the team, routing complexity and reporting requirements.
Can VoIP integrate with Salesforce and HubSpot?
Many contact-centre and business VoIP platforms integrate with CRM systems such as Salesforce and HubSpot, but the available functions and required licence tiers vary.
Can VoIP calls be recorded?
Yes. Most contact-centre platforms support call recording, although businesses should consider retention, access controls and data-protection requirements.
What features should a call centre phone system have?
Common requirements include queues, IVR, recording, real-time analytics, CRM integration, supervisor monitoring and secure remote access.
Related Call Centre & VoIP Guides Compare Call Centre VoIP Quotes
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.
