The way UK businesses communicate is changing fast. With the PSTN switch-off confirmed for January 2027, thousands of companies are actively seeking reliable, future-proof alternatives to traditional landlines.
The solution is a digital IP-based voice service, commonly known as VoIP. Choosing the right system will cut call costs, support remote teams, and scale with any organization. However, the wrong choice can lead to unnecessary technical hurdles.
To simplify the search, here is a breakdown of the leading VoIP providers UK for 2026. Whether the goal is to find a budget-friendly VoIP service provider, a fully hosted VoIP provider in the UK, or a reliable home VoIP provider, these 10 options are among the top-tier options in the current market.
✨ Key Takeaways
- KrispCall: Best for unified communications and global reach.
- RingCentral: Best for an all-in-one UCaaS platform.
- Nextiva: Best for multi-channel tools with built-in CRM features.
- CloudTalk: Best for AI-enhanced call center features.
- Dialpad UK: Best for real-time AI transcription and coaching.
- Voipfone: Best for flexible, “pay-as-you-go” UK-specific plans.
- 8×8 UK: Best for international teams and call center analytics.
- Vonage Business: Best for API customization and flexible integration.
- 3CX: Best for open-platform PBX and on-premise deployment.
- GoTo Connect: Best for integrated video conferencing and messaging.
How we selected the best VoIP phone systems for small businesses in the UK?
To build this list, we drew on insights from leading review platforms, including G2, Trustpilot, Capterra, and GetApp. We cross-referenced user ratings, expert opinions, and real-world feedback from UK-based businesses and tested them to get a feel for how they perform day to day.
Every VoIP phone service provider was evaluated against the same core criteria:
- Call quality & reliability: uptime guarantees and connection consistency
- Pricing & value: transparent plans suited to UK small business budgets
- Features: essentials like IVR, call recording, voicemail, and team collaboration tools
- Scalability: the ability to grow from a handful of users to large teams
- UK suitability: local number support, GDPR compliance, and UK-based customer support
- Ease of setup: how quickly a non-technical team can get up and running
Top 10 best UK VoIP providers at a glance
Not sure which UK VoIP providers suit your business? Here’s a quick side-by-side breakdown to help you compare at a glance before we dive into the full reviews.
| Provider | From Per User Per Month | Best for | Free Trial | G2 Review |
| KrispCall | $12/user/month | Business VoIP & global reach | No | 4.7/5 |
| RingCentral | $20/user/month | Unified communications at scale | Yes (14 days) | 4.1/5 |
| Nextiva | $15/user/mo | Multi-channel tools & built-in CRM | Yes (14-days for some NextivaONE packages) | 4.5/5 |
| CloudTalk | $19/user/month | AI-powered features for customer-facing teams | Yes (14-days) | 4.4/5 |
| Dialpad UK | $15/user/month | AI transcription, coaching & real-time analytics | Yes (14-days) | 4.4/5 |
| Voipfone | £2 (~$2.70)/user/month | Budget-friendly VoIP built for UK SMEs | Yes (30-day) | 3.6/5 |
| 8×8 UK | Custom pricing | Global-ready VoIP with contact center analytics | Yes (30 days) | 4.1/5 |
| Vonage Business | $13.99/line/month | Customizable VoIP with open APIs | Yes (14 days) | 4.3/5 |
| 3CX | $300/year | Open-platform PBX with flexible deployment | Yes | 4.4/5 |
| GoTo Connect | Custom pricing | Video, voice & messaging in one platform | Yes for GoTo Meetings only | 4.5/5 |
1. KrispCall
KrispCall is one of the best VoIP providers in the UK, offering a unified communication platform that feels as modern as the businesses that use it. It is particularly effective for teams that need to maintain a local presence in Britain while managing a global client base, thanks to its extensive library of international virtual numbers.
What sets this platform apart from other UK VoIP service providers is its Unified Callbox, which consolidates calls, SMS, and voicemails into a single interface. This makes it an ideal business VoIP provider for those looking to eliminate app-switching fatigue and streamline their customer support workflows.
Features
- Call forwarding: Route incoming calls to any device or team member, ensuring no call ever goes unanswered.
- Phone tree (IVR): Set up multi-level auto-attendants to quickly direct callers to the right department.
- Call monitoring: Elevate quality control with live listen, whisper, and barge capabilities, allowing managers to support agents during active calls.
- Simultaneous ringing: Ring multiple devices or agents at the same time so the first available person picks up.
Pricing
KrispCall offers a tiered structure that scales with your growth, ranging from an entry-level Essential plan for small teams to advanced Standard and Enterprise options for high-volume call centers.
| KrispCall Plan | Annual Pricing (Per user/month) | Key features |
| Essential | $12 | Global phone numbers, Number porting, Call filters |
| Standard | $32 | Call recording, Bulk SMS, Call transfer |
| Enterprise | Custom | Power dialer, Developer support, Dedicated account manager |
Pros and Cons
| Pros | Cons |
| Intuitive, beginner-friendly interface that requires little to no technical setup | No free trial available, which makes it harder to test before committing |
| Competitive starting price with a generous feature set across all plans | No desktop app is available |
| For every user, one local/mobile number from the UK or one local number from either the USA or Canada is available for free upon signup | Focuses more on voice calls, so lacks video conferencing |
| Strong call monitoring tools (listen, whisper, barge) are ideal for sales and support teams | Limited advanced analytics compared to more established enterprise platforms |
Key Integrations:
- HubSpot
- Microsoft Dynamics 365
- Microsoft Teams
- Zapier
- Pipedrive
Best For: Modern UK businesses needing global reach and high-end features at a competitive price.
2. RingCentral
RingCentral consistently ranks at the top in any UK VoIP provider comparison due to its extensive feature set and five-nines (99.999%) reliability. It offers a comprehensive suite that combines carrier-grade voice, video conferencing, and team messaging into a single, secure ecosystem.
Features
- Intelligent routing: Automatically directs inbound calls and messages to the most suitable agent based on skill set, availability, and customer data.
- AI-enabled virtual agents: Handles routine customer queries automatically via chatbots and voice assistants, freeing up live agents for more complex interactions.
- Call deflection: Programs the IVR to offer callers alternative digital channels, such as SMS or live chat, so they don’t have to sit in a queue.
- Call blending: Optimizes agent productivity by automatically switching team members between inbound and outbound tasks based on real-time traffic fluctuations
Pricing
RingCentral offers several tiers under its RingEX branding: Core, Advanced, and Ultra, to suit different organizational sizes and feature requirements.
| RingCentral Plan | Annual Pricing (per user/month) | Key Features |
| Core | $20 | Video meetings (200 participants), Basic AI virtual assistant, 25 SMS users/month |
| Advanced | $25 | Everything in Core plus, CRM integrations, 100 SMS users/month, AI writer |
| Ultra | $35 | Everything in Advanced plus, 200 SMS users/month, All AI virtual assistant features, 10,000 toll-free minutes |
| Customer Engagement Bundle | Custom pricing | Everything in Ultra plays, Business SMS booster, Call queues booster |
Pros and Cons
| Pros | Cons |
| Comprehensive all-in-one UCaaS platform covering voice, video, and messaging | Premium pricing may be steep for very small businesses or tight budgets |
| Strong uptime guarantee (99.99%) with enterprise-grade security and GDPR compliance | Interface can feel complex and overwhelming for first-time VoIP users |
| Extensive integration ecosystem with 500+ app connections | Advanced features like AI tools are locked behind higher-tier plans |
| Scalable across small teams and large multi-site organizations | Customer support response times have drawn mixed reviews on G2 and Trustpilot |
Key integrations:
- Salesforce
- Google Workspace
- AWS Marketplace
- HubSpot
- Beetexting
Best For: Enterprises requiring a strong, all-in-one unified communications platform with industry-leading uptime.
3. Nextiva
Nextiva is a feature-rich VoIP platform that stands out for its reliability and its ability to turn communication data into actionable business insights. It unifies voice, messaging, and customer management tools in one place, without stitching together multiple apps or paying for separate software.
Features
- SIP trunking: Connect existing on-premise PBX systems to the cloud, allowing businesses to keep their current hardware while benefiting from modern internet-based telephony.
- Custom music on hold: Upload branded audio files or choose from built-in tracks to play for callers during holds, queues, or transfers.
- Priority alerts: Set up specific notifications for important callers or high-value clients to ensure the most critical inquiries are identified and addressed promptly.
- Call screening: View the caller’s information before answering, giving team members the context needed to handle the call effectively or redirect it.
Pricing
Nextiva offers flexible monthly and annual plans categorized into Core, Engage, and Scale.
| Nextiva Plan | Annual Pricing (per user/month) | Key Features |
| Core | $15 | Video calls, Voicemail transcription, Built-in contact management |
| Engage | $25 | Microsoft Teams integrations, Call performance insights, Video meeting recording |
| Scale | $75 | NextIQ AI answer assist, Real-time transcription, Unlimited text messages |
Pros and Cons
| Pros | Cons |
| Excellent balance of VoIP features and built-in CRM-style tools in one platform | Free trial is not available on all plans; limited to select NextivaONE packages |
| Offers highly responsive and knowledgeable 24/7 customer support | Can feel feature-heavy for very small teams that only need basic calling |
| Strong uptime and call quality backed by a reliable cloud infrastructure | Some advanced features require higher-tier plans at increased cost |
| Intuitive admin portal that doesn’t require technical expertise to manage | Monthly SMS limitations are quite low |
Key integrations:
- Salesforce
- Oracle NetSuite
- Epic
- Zendesk
- GoldMine
Best For: Small to mid-sized UK businesses that communication suite that blends professional voice services with advanced customer management tools.
4. CloudTalk
CloudTalk is a cloud-based call center and VoIP platform purpose-built for sales and customer support teams. It brings together intelligent call routing, AI-driven automation, and deep CRM connectivity in a clean, unified workspace.
It stands out for its ability to provide localized caller IDs across 160 countries, ensuring that UK-based teams can maintain a local feel while operating on an international scale.
Features
- Campaigns: Allows teams to organize and run structured outbound calling campaigns, complete with custom scripts, notes, and questionnaires.
- VIP queues: Ensure your most valuable clients never wait in line by prioritizing their calls and routing them directly to specialized agents or account managers.
- Real-time dashboard: Monitor live call center activity, including waiting times, agent availability, and current call volumes, to make instant staffing adjustments.
- Automatic summaries & tags: Leverage AI to transcribe calls and automatically categorize them with relevant tags.
Pricing
CloudTalk offers a transparent, three-tier pricing model: Lite, Essential, and Expert, allowing businesses to pay only for the level of complexity they truly need.
| CloudTalk Plan | Annual Pricing (per user/month) | Key Features |
| Lite | $19 | Desktop/mobile app, Unlimited number of extensions, 1 month of recording retention |
| Essential | $29 | Unlimited recording retention, IVR routing, Callback |
| Expert | $49 | Power dialing, Smart dialer, Live call monitoring |
Pros and Cons
| Pros | Cons |
| 14-day free trial with no setup or onboarding fees | Advanced AI and analytics features are locked behind higher-tier or add-on plans |
| Clean, unified interface that consolidates calls, SMS, and WhatsApp in one workspace | Pricing can climb quickly for larger teams needing full feature access |
| Users usually praise its responsive and supportive customer service | Some users report occasional call quality issues on lower-bandwidth connections |
| VIP queues and smart routing make it genuinely effective for customer-facing teams | The Expert plan requires a minimum of three users, limiting solo or micro-team use |
Key integrations:
- Zendesk Sell
- Zoho CRM
- Zapier
- MS Dynamic 365
- Freshservice
Best For: Sales and support teams that require data-driven insights and AI-powered automation to handle high call volumes.
5. Dialpad UK
Dialpad is one of the most AI-forward VoIP platforms on this list. Built from the ground up with its own proprietary AI engine, it delivers real-time call transcription, live coaching, automated summaries, and sentiment analysis.
Operating with a mobile-first philosophy, it is an excellent choice for business VoIP providers UK with hybrid or fully remote teams.
Features
- BYOD (Bring Your Own Device): Dialpad works across iOS, Android, Mac, PC, and web browsers, meaning agents and employees can use whichever device they already own.
- Call masking: Maintain professional privacy by displaying your business number on outbound calls, even when dialing from a personal mobile device.
- Enterprise video conferencing: Access high-definition video meetings with built-in AI summaries, screen sharing, and virtual backgrounds, supporting up to 150 participants.
- Omnichannel customer service: Consolidate voice, SMS, and digital messaging into one interface.
Pricing
Dialpad’s Connect plans offers three-tiered structure: Standard, Pro, and Enterprise.
| Dialpad Plan | Annual Pricing (per user/month) | Key Features |
| Standard | $15 | Call recording, SMS/MMS, 150 participants video meetings |
| Pro | $25 | Additional local or international numbers, QOS reports, Hold queues |
| Enterprise | Custom Pricing | Unlimited ring groups, Unlimited offices, SSO (Okta, Azure & OneLogin) |
Pros and Cons
| Pros | Cons |
| New users and departments can be set up in minutes via a streamlined web dashboard | The product range (Connect, Support, Sell) can feel fragmented and confusing to navigate |
| Strong GDPR and HIPAA compliance built into the platform | The standard plan lacks some features that rivals include at the same price point |
| True BYOD support across all major devices and operating systems | Add-on costs can push the total bill higher than the headline price suggests |
| Seamlessly records every interaction, ensuring your CRM is always up to date without manual entry | Advanced AI features and international calling are locked behind higher-tier plans |
Key integrations:
- Slack
- Microsoft Dynamics 365
- Salesforce
- Bullhorn
- Make
Best For: Tech-savvy teams that want to leverage AI to automate administrative tasks and gain deep insights into their customer conversations.
6. Voipfone
Voipfone is a London-based VoIP provider that has been serving UK businesses since 2004. Unlike many competitors that tie users into long-term contracts, Voipfone operates on a flexible monthly basis, making it one of the best VoIP providers for home users and micro-businesses in the UK.
Features
- PSTN failover diverts: Automatically redirects incoming calls to an alternate number if your VoIP phone loses connection.
- 1471 last number that was called: Lets users dial 1471 for free to identify the last caller, with the option to call back immediately or block the number if it was unwanted.
- Message Waiting Indication (MWI): Alerts users to a new voicemail via a visual or audible indicator on their IP phone.
- Call transfer: Effortlessly move active calls between team members, extensions, or external numbers.
Pricing
Voipfone is famous for its modular pricing; you only pay for the specific features and numbers you need.
| Plan | Monthly price (per user) | Key Features |
| Voipfone Flex | £2 (~$2.70) | All standard features, Additional UK numbers at £3 each, Advanced features are available as add-ons |
| Voipfone 100 | £5 (~$6.76) | All standard features, Call groups, Call barring |
| Voipfone 500 | £10 (~$13.52) | All standard features, call queue, IVRs (single menu) |
| Voipfone 1000 | £15 (~$20.28) | All standard features, IVRs (multi menu), Cloud call recording |
| Voipfone Unlimited | £20 (~$27.04) | All standard features, Call me back pro, Custom music on hold |
Pros and Cons
| Pros | Cons |
| Some of the lowest entry-level pricing among UK VoIP providers | Free trial is extremely limited; only 15 minutes of calls to UK landlines or mobiles |
| No long-term contracts and a fully flexible, modular pricing structure | G2 rating of 3.6/5 is notably lower than most competitors on this list |
| Reliable PSTN failover protection | Limited integrations compared to more modern platforms like CloudTalk or KrispCall |
| UK-built and UK-focused, with great local number support | The interface and feature set feel dated compared to AI-powered rivals |
Key integrations:
Voipfone’s integration ecosystem is more limited than that of larger platforms. It supports SIP-compatible devices and softphones, with basic compatibility for tools like Microsoft Teams via SIP trunking, but it does not offer deep native CRM or helpdesk integrations out of the box.
Best For: Micro-businesses and home office users who value UK-based expert support and a flexible, no-contract commitment.
7. 8×8 UK
8×8 is an enterprise-grade unified communications platform with a strong presence in the UK and over a million business users worldwide. It brings together voice, video, messaging, and contact center capabilities on a single platform, backed by a 99.999% uptime SLA.
Its X Series plans are designed to eliminate silos between departments, ensuring data flows seamlessly across departments.
Features
- Unlimited internet fax: Securely send and receive faxes digitally from any device, without any hardware or separate fax line.
- PSTN access: Works with 25+ PSTN carriers globally to ensure seamless connectivity between internet-based calls and traditional phone lines
- UC call recording: Records both incoming and outgoing calls across the unified communications platform, with recordings stored in the cloud and instantly accessible.
- Phone paging: Broadcast real-time announcements across multiple desk phones or overhead speakers simultaneously.
Pricing
8×8 UK’s pricing is custom and no longer publicly listed; pricing queries are available only on request.
| 8×8 Plan | Pricing | Key Features |
| Contact Center | Chat with sales | AI-enabled self-service, High-volume messaging, Omnichannel routing |
| CX Beyond the Contact Center | Chat with Sales | Advanced queue management, Conversational intelligence, Team lead analytics |
| Communications APIs | Chat with sales | High-volume SMS, Voice/Video, Authentication & fraud |
| Unified Communications | Chat with sales | High-volume messaging, Receptionist console, Integrations |
Pros and Cons
| Pros | Cons |
| Industry-leading 99.999% uptime SLA with financial backing | Custom pricing makes it harder to compare without contacting sales |
| Video and audio conferencing for up to 500 active participants | Advanced features like call monitoring, analytics, and CRM integrations require higher-tier plans |
| Strong GDPR compliance and enterprise-grade security with geo-redundant data centers | Customer support has drawn mixed reviews, with some users citing long wait times |
| Deep Microsoft Teams integration via certified Direct Routing | Platform complexity can feel overwhelming for smaller teams with simpler needs |
Key integrations:
- Microsoft Teams app
- Infinity
- PCI Pal
- Pipedrive
- Azure
Best For: Mid-to-large enterprises that require a secure, all-in-one platform with global calling reach and advanced contact center features.
8. Vonage Business
Vonage Business Communications (VBC) is a feature-rich VoIP platform that has long been trusted by businesses worldwide. With 50+ built-in features, a highly flexible API ecosystem, and strong integration capabilities, it’s a platform that can be molded to fit almost any business communication workflow.
Features
- Call announce: Receive a brief audio whisper before answering, identifying the source or reason for the call (e.g., “Sales Line” or “Support”).
- On-demand call recording: Start and stop call recordings at will with just a few button presses
- Phone call screening: Require unknown callers to identify themselves by voice before you answer, allowing your team to filter out spam and prioritize high-value inquiries.
- Simultaneous ring: Rings different numbers or devices at the same time when an incoming call arrives, ensuring the first available person answers.
Pricing
Vonage Business offers tiered plans: Mobile, Premium, and Advanced, with the flexibility to add specific features or additional extensions as your team grows.
| Vonage Plan | Annual Pricing (per line/month) | Key Features |
| Mobile | $13.99 | VBC mobile/desktop app, Unlimited domestic calling, Voicemail |
| Premium | $20.99 | Vonage meeting (200 participants), Single Sign-on, Team messaging |
| Advanced | $27.99 | Call groups, Visual voicemail, On-demand call recording |
Pros and Cons
| Pros | Cons |
| Powerful open API platform (Vonage API / Nexmo) makes it highly customizable for development teams | Customer support quality has drawn mixed feedback in user reviews on G2 and Trustpilot |
| Broad Microsoft Teams integration for businesses already embedded in the Microsoft ecosystem | SMS functionality is currently limited to the US and Canada, which is a drawback for UK-focused messaging workflows |
| Accessible to small businesses and startups with its low entry-level pricing | Reports of difficult cancellation processes and auto-renewal |
| Consistent call quality and user-friendly mobile/desktop apps | Video conferencing is not available on the lower-tier plan |
Key integrations:
- Slack
- Microsoft Dynamics
- G Suite
- NetSuite
- Microsoft 365
Best For: UK businesses that want a flexible, API-driven platform that grows with their digital ecosystem.
9. 3CX
3CX has long been the favorite for UK companies that want a do-it-yourself approach to their telephony. Unlike many VoIP providers in the UK that force you into their proprietary cloud, 3CX allows you to host the system on your own servers (Windows or Linux) or use a cloud provider like Google Cloud or Amazon Web Services.
Features
- Onboard video conferencing MCU: Hosts video meetings entirely within your own 3CX instance via an onboard Multipoint Control Unit.
- Call flow designer: A visual, drag-and-drop tool that lets you build complex call routing and voice applications without needing advanced programming skills.
- AI boss-secretary: Assigns a dedicated secretary or PA extension (human or AI) to screen and manage an executive’s incoming calls, blocking unwanted callers, and routing trusted contacts directly.
- CRM integration: Connects 3CX to CRM platforms so that incoming calls automatically trigger screen pops with customer records, and call logs, recordings, and notes are synced back to the CRM after each interaction.
Pricing
3CX uses a flat annual license model based on simultaneous calls rather than per-user fees.
| 3CX Plan | Annual Pricing | Key Features |
| BASIC | $300 | Auto attendant, Call parking/pickup, Multi-level IVR |
| PRO | $395 | Call processing scripts, Custom FQDN, Google Workspace full integration |
| ENT/AI | $575 | Custom IP phone logo, Xapi/Call API, Call summary |
| ENT+ | $750 | Call transcriptions, Inbuilt failover, Video conferencing |
Pros and Cons
| Pros | Cons |
| Choose to host it on-premise, in your private cloud, or have 3CX host it for you, ensuring it fits your specific security needs | Support is charged per ticket ($75) rather than included |
| The per-concurrent-call pricing can be significantly cheaper than that of UK VoIP service providers that charge per seat | Requires meaningful technical expertise to set up, maintain, and customize |
| Add as many extensions or users as you like without your monthly bill increasing, as long as you stay within your call limit | Complex pricing structure with additional hosting, SIP trunk, and SSL certificate costs that can be hard to predict |
| Free SMB plan available for up to 10 users; ideal for small teams wanting to trial the platform | The administrative console is incredibly deep, which can be overwhelming for small business owners |
Key integrations:
- Bitrix24
- Freshdesk
- HubSpot
- mongoDB
- pipedrive
Best For: IT-savvy UK businesses or multi-site organizations that want maximum control over their phone system infrastructure.
10. GoTo Connect
GoTo Connect (formerly Jive) has become a staple among UK VoIP providers for its simplicity-first philosophy. It combines world-class cloud telephony with the power of GoTo Meeting and offers a visual dial plan editor, unlimited calling across 50+ countries, and 99.999% uptime guarantee.
Features
- Call filtering: Take total control of incoming traffic by setting up rules to automatically block spam and robocalls or route VIP clients directly to a specific extension
- Hot desking: Log into any shared physical desk phone in the office to instantly load their personal extension, speed dials, and settings.
- Virtual fax: Send and receive faxes digitally via email or the GoTo portal from anywhere in the world.
- Call routing: Map out intelligent call flows based on business hours, auto-attendants, ring groups, and caller input
Pricing
GoTo Connect typically offers a tiered approach, including a Phone System plan for essentials and a Connect CX plan for those needing advanced CRM integrations and multi-channel support.
| GoTo Connect Plan | Annual Pricing | Key Features |
| Phone System | Custom price | Free calls to 50 countries*, Unlimited auto attendants, Video meetings with up to 250 participants |
| Customer Experience (CX) | Custom price | Attendant console, AI call summaries, Shared inbox |
| Contact Center | Custom price | Call campaign, Intelligent call routing, Call dispositions |
Pros and Cons
| Pros | Cons |
| Strong video conferencing for up to 250 participants is built directly into the platform | Pricing is no longer publicly listed in full, requiring a sales conversation to get accurate quotes |
| Bundles cloud phone, video conferencing, and SMS/messaging in a single platform | CRM integrations and detailed call reporting are not included in the base Phone System plan |
| Compatible with over 180+ desk phone devices, allowing companies to use existing hardware | The overall UI or the admin interface can feel dated compared to newer competitors |
| 99.999% uptime SLA and 24/7 customer support across all plans | While generally reliable, some users have reported occasional service outages |
Key integrations:
- Kommo CRM
- Outlook
- Zendesk
- Microsoft Office 365
- DriveCentric
Best For: Remote-first, hybrid, and multi-site UK businesses that need a reliable all-in-one platform covering voice, video, and messaging.
Related 👉: Best VoIP Providers in South Africa
How much does business VoIP cost in the UK?
The UK business VoIP cost is typically structured on a per-user, per-month basis, which allows for easy scalability as a team grows. Here’s a breakdown of what UK businesses typically pay for VoIP in 2026:
| Business size | Typical monthly cost per user | Recommended providers |
| Solo trader /micro (1-4 users) | $2.50 – $12.50 / userBudget-first; basic calling & voicemail | Voipfone, Vonage, KrispCall |
| Small business(5-24 users) | $12 – $20 / userMobile apps, call routing, and team features | KrispCall, Vonage, Nextiva, Dialpad |
| Mid-market(25-99 users) | $19 – $27 / userAnalytics, CRM integration, IVR, recording | Nextiva, Dialpad, CloudTalk, RingCentral, KrispCall |
| Enterprise(100+ users) | $25 – $50+ / userSLAs, compliance recording, and advanced routing | RingCentral, 3CX, 8×8 |
Note: All the provider prices are in USD, so your actual cost in GBP will fluctuate with the exchange rate.
How to choose the right VoIP provider?
Choosing a VoIP provider isn’t just about the price; it’s also about matching your team size, workflow, and priorities to the right platform. Use the table below to find your best fit:
| Priority | Best choice | Why |
| Lowest cost | Voipfone (~$2.70/user/mo) | Cheapest per-user price on the list. UK-based, self-service setup |
| Most features | RingCentral | 500+ integrations, built-in video, AI tools, and advanced analytics |
| CRM integrations | KrispCall, Vonage Business | Deepest native CRM sync (Salesforce, HubSpot, Zoho) and strong supervisor tools |
| AI & automation | Dialpad UK | Live AI transcription, sentiment analysis, and real-time call coaching are built into every plan |
| International calling | GoTo Connect | Free calls to 50+ countries included. If your team dials globally |
| Call center | CloudTalk | Built for high call volumes and real-time analytics make it a strong contact center choice |
| Scalability | Nextiva | Strong reliability and consistent pricing across tiers. Scales from small teams to mid-market without needing to re-platform |
| Enterprise/managed | 3CX | Full managed UCaaS with enterprise SLAs and compliance |
A few things to keep in mind before committing to a provider:
- Video conferencing: Not all providers offer video conferencing
- User caps: Some providers’ starter plans limit seats, so check before signing up
- Contract length: Monthly rolling vs annual can vary significantly in total cost
- CRM integrations: Check if the provider actually provides the integration that you use or need before committing
Why KrispCall is the best VoIP provider UK?
Choosing the right VoIP provider comes down to matching your priorities, and across most of them, KrispCall holds its own against providers that cost significantly more.
At $12 per user per month, it delivers a Unified Callbox, 100+ CRM integrations, AI transcription, global virtual numbers, and smart call routing; features that other providers reserve for higher tiers. For UK businesses that need a professional, scalable phone system without overcomplicating the stack, KrispCall is a genuinely strong starting point.
That said, no single provider is perfect for everyone. If video conferencing is non-negotiable, RingCentral or Dialpad edge ahead. If your priority is the lowest possible cost, Voipfone is hard to beat. And if you’re running a large enterprise that needs managed service and compliance-grade recording, 8×8 is the safer choice.
If you’re ready to move away from traditional landlines ahead of the 2027 PSTN switch-off, book a free KrispCall demo before you commit.
