Best Business VoIP Providers in the UK of 2026

3CX

3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution.

1,235 Ratings

Starting Price: Free for up to 10 users

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Intermedia Unite

Intermedia

Intermedia Unite® brings business communications, collaboration, and customer engagement into one easy-to-use platform—keeping teams connected, productive, and responsive from anywhere. It replaces fragmented tools by combining business phone service, video conferencing, team chat, and file sharing into one seamless experience, so employees can collaborate without switching apps. Unite delivers enterprise-grade calling with 100+ features, integrated customer engagement, and enhanced Microsoft Teams experiences. With mobile and desktop apps, users can call, meet, message, and engage customers from anywhere while maintaining a consistent business identity. AI-powered transcription, summaries, and insights help teams capture details and follow up efficiently. Backed by 99.999% uptime and J.D. Power-certified support, Unite ensures reliable performance—resulting in simpler communications, more productive teams, and better customer engagement.

1,625 Ratings

Starting Price: $22.99/user

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PBXware

Bicom Systems

Our VoIP solution pairs PBXware with gloCOM: the PBX handles the infrastructure, gloCOM handles what the user actually sees and touches. Calls follow the person across desktop, mobile (iOS and Android), and web on the same number, which removes the friction of being tied to a specific device or location. With v8 multi-CRM support, conversation history logs automatically to each user's CRM across all channels and devices, so client data stays accurate without additional manual work. gloCOM Next runs on a unified codebase across desktop and web, with full branding control through BRM. Fully white-label, so providers own the customer relationship from end to end.

39 Ratings

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ULTATEL

Ultatel stands at the forefront of business communications, empowering organizations with cutting-edge cloud VoIP technology to boost productivity and stay connected with customers anywhere, anytime. Our plans come fully scalable, featuring unlimited HD Voice, SMS, Fax, Chat, Video, and over 40 advanced features and integrations. Experience true transparency with our no-hidden-fees pricing model—what you see is exactly what you pay! Recognized as a Gartner Category Leader and G2 High Performer, Ultatel offers a unified communications platform that evolves with your business. Powered by our innovative FlexScale technology, you can effortlessly adjust your communication needs without any downtime or penalties. Our Award-Winning Customer Support team is here for you 24/7/365, delivering a remarkable 94% first-contact resolution rate. With Ultatel, enjoy the peace of mind that comes with being connected beyond limits.

114 Ratings

Starting Price: $14.95 per user per month

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Community Phone

Calling made modern. Your business number. Your employees' phones. Our amazing features. A dial menu spoken by our voice actors. Callers press numbers to make purchases, hear MP3s, connect to specific staff, and more. Make and answer calls using your number on multiple phones without the caller ever knowing. Employees hear secret in-house menus, transfer calls, and send voicemails to their email, all from their dialpad. These business features require no new software or hardware. Your dialpad come to life. Porting your business or personal number at the press of a button. Select from our menu of modern voice features for your business or personal line. We'll activate these features on your current phone for you. No work (or learning) required from you. We'll be here to transform your number whenever your desires change.

1,404 Ratings

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Datagate Telecom Billing

Datagate Innovation

Datagate is a SaaS, telecom billing solution for MSPs that sell UCaaS, VoIP, mobile voice & data services under their own brand. Datagate integrates with popular software systems that MSPs use including ConnectWise Manage, QuickBooks, Xero, Stripe, Authorize.net and others. Suitable for MSPs in USA, Canada, UK, Australia and New Zealand; Datagate & partners handle all telecom tax & compliance requirements.

12 Ratings

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Phonexa

Phonexa’s Cloud PBX provides a cloud-based voice communication system designed for modern marketing and operations teams. The platform supports call recording, skill-based routing, IVR menus, voicemail boxes, and comprehensive call logs and summary reports, all accessible without on-premises hardware. As part of Phonexa’s ecosystem, business VoIP aligns with campaign workflows by providing detailed call-level analytics that feed into broader lead-management efforts and pay-per-call tracking. Users can define call groups, configure permitted calling hours, maintain do-not-call lists, and monitor agent performance via call dispositions, tags, and scoring. With Phonexa’s Cloud PBX, you gain a unified, scalable voice channel that seamlessly integrates with your lead distribution and conversion pipelines while enhancing agent productivity and operational oversight.

238 Ratings

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Yeastar P-Series PBX System

Yeastar

Focusing on delivering "Easy-first Unified Communications", Yeastar P-Series Phone System offers companies of all sizes with a complete package for calls, video, messaging, and integrations, out of the box.

116 Ratings

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CallTools

CallTools is a powerful Business VoIP solution built for high-volume sales and support teams. With a cloud-based infrastructure and enterprise-grade reliability, it delivers crystal-clear call quality, robust scalability, and the tools needed to drive conversations at scale. Manage both inbound and outbound calls from a single platform with smart queuing, IVR, and call routing. Our built-in CRM and real-time analytics help teams improve contact rates, close deals faster, and stay compliant. Easily connect with your favorite tools through native integrations and open API. Whether you’re managing a growing team or optimizing a contact center, CallTools simplifies operations and boosts performance with advanced call control, auto dialers, live monitoring, call recording, and more. Backed by U.S.-based support, CallTools empowers teams to make more meaningful connections and convert more leads with every call. Ideal for remote and hybrid teams looking for flexibility and results.

594 Ratings

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CloudTalk

Searching for a smart call centre software? Try CloudTalk.io, a new-generation cloud phone system for SMEs, startups, online stores or call centers (sales and customer service teams). 25+ integrations with favorite CRM, helpdesk or e-commerce tools as Shopify, Salesforce, Pipedrive, Intercom at hand along with a 5-star rated customer success team make it easy to seamlessly migrate or set up your new cloud call centre from scratch. We are rapidly growing every month and we have already successful cooperation with 1000+ companies across the world like DHL, Yves Rocher or Karcher. Try 14 day FREE trial from CloudTalk (no credit card details required).

60 Ratings

Starting Price: $25.00/month (billed annually)

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VoIP.ms

VoIP.ms is a Canadian voice-over-internet protocol (VoIP) bring-your-own-device provider headquartered in Canada with over 80,000 customers. VoIP.ms provides a vast range of standard telephony features, as well as enhanced communication features to simplify both business and residential communications such as local DID numbers in 60+ countries. It offers Free Porting across US and Canada for local & toll-free DIDs with termination (outgoing calls) in over 125 countries across the globe.

17 Ratings

Starting Price: $1.10 month per DID

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Kixie PowerCall & SMS

Kixie

Kixie is a revenue engagement platform that helps teams connect faster, sell smarter, and scale efficiently with AI-driven automation and seamless CRM integration. ✔️ Outbound Sales: Increase connection rates by up to 400% with AI-powered Local Presence Dialing, Multi-Line PowerDialer, and Spam Risk Reduction. ✔️ Marketing: Automate calls and texts for instant follow-ups and personalized, scalable outreach. ✔️ Inbound Sales & CS: Streamline workflows with CRM-based call routing, shared SMS inboxes, and automated responses. ✔️ RevOps & Leadership: Optimize team performance with AI-powered call insights, live coaching, and real-time analytics. 🚀 Boost productivity and revenue with Kixie. Visit our website to get started for free today, no credit card required!

13 Ratings

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VirtualPBX

VirtualPBX stands as an acclaimed Business Phone System Provider, renowned for its award-winning services. Offering industry-leading features, boasting 99.999% reliability, and competitive pricing, VirtualPBX equips businesses with top-tier communication tools for seamless unified communications. Catering to a diverse range of enterprises, from entrepreneurs to contact centers seeking a complete contact center solution. VirtualPBX serves as the ultimate destination for modern business VoIP needs. With plans starting at just $18 per month, VirtualPBX ensures accessibility and excellence in communication solutions. Get a free demo today!

12 Ratings

Starting Price: $18/month

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UniTalk

UniTalk provides a wide range of services in the field of telecommunications for business, including IP telephony and virtual PBX, call tracking, recording telephone conversations, callback buttons and widgets for the site, various types of telephone calls and routing, and much more.

11 Ratings

Starting Price: $35/month

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Insider Telecom

Get a business phone system without breaking the bank! We help small businesses in the United States get access to big business tools, while keeping prices within reach. In fact, with Insider Telecom, we provide the equipment as long as you need it. Enjoy features like caller ID, call forwarding, conference calling, intercom, auto attendant, and many more! No big upfront purchase for a complete business phone service. That's the Insider Telecom difference. Our support team knows that you probably don't speak "telephone." So they're trained to listen for and understand the root of your specific need - from training and configuration, all the way to fitting you with a different phone system. We want to be sure you're working with the right platform.

1 Rating

Starting Price: $17.95 per user per month

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UltraSMSScript

UltraSMSScript is a uniquely positioned, easy to use, web-based group text and SMS marketing software platform. Either install UltraSMSScript on your own server and pay a 1-time fee for the platform, or have us host it for you with our monthly hosted plans! Pay for the text messages at WHOLESALE rates since we're linked directly to the text-messaging gateways. UltraSMSScript is the ultimate turn key SMS software platform and can be used as a white label solution for ad and media agencies, marketing providers, and companies serving their own local clients. With our text messaging software platform, you can service an unlimited number of client accounts with our Level 4 and ULTRA plans and manage these accounts from a very easy and intuitive administration panel giving you complete control. Experience many features such as Bulk SMS, Mobile Coupons, 2-Way SMS Chat, Appointment Reminders, Drip Autore

1 Rating

Starting Price: $297 one-time payment

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Infinite Connect

One unified platform to run your entire business remotely. Improve productivity and simplify your communications with reliable voice, video, fax, conferencing and messaging in the cloud. Flexible unified cloud communications and contact center services designed, for small and medium sized businesses. Customize your settings and capabilities to have your conference calls work the way you want. Up to 100 callers included. In place of your traditional small business phone system, our VoIP phone system or hosted PBX uses your broadband connection to make communicating easier. From small meetings to large webinars, broadcast HD video, enable integrated teleconferencing and share your desktop with ease. No downloads required. Send and receive SMS & MMS text messages online and manage internet faxing from your dashboard. Infinite provides the most up to date VoIP Phones that arrive fully configured with plug and play functionality. All you have to do is turn on your phone and start talking.

Starting Price: $22.50 per month

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T-Max Phone Systems

T-Max

The Hosted Business Phone System PBX will make any company sound and function like a Fortune 500 company. Your company can have all your calls answered by an auto-attendant allowing for callers to choose departments, extensions, dial by name or many other options. If you are working on the go you can have them automatically transferred to your cell phone. T-Max is fully geo-redundant. In other words, our servers are being hosted in a top-notch data centers throughout the United States. We use multiple carriers ensuring maximum connectivity to the PSTN. T-Max uses high-quality desk phones from Polycom & Yealink, with many different models to pick from to fit your unique environment best. We offer reception consoles, agent phones, wireless phones, and conference room phones. Our Hosted Business Phone System is the best choice for the price on the market today. 1-888-245-3483 Departments Extensions Digital Receptionist Voice Prompts Voice Mail Fax Service and Much More

Starting Price: $19.99 Mo/Ext

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LINXS Communications

LINXS Communications offers world class scalability. As your company grows so will your need for additional VoIP services. You let us do all the leg work, so you can focus on your business. With Cloud PBX business VoIP phones from Linxs Communications you can expect to see considerable savings on your phone bill while upgrading your business communications at the same time. LINXS Communications has the capability to allow you to make and receive calls from your mobile phone or a softphone straight from your desktop. Don't let hardware be a barrier to entry. Gigabit phones with high-definition (HD) audio and video gives outstanding clarity over the typical analog phone. 110+ unique feature rich options for you to pick from. We have what your business needs to succeed with plug and play VoIP phones. 24 x 7 x 365 Support located in the United States. Your calls or emails will get a response from the same support team every time.

Starting Price: $19.95

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KrispCall

KrispCall helps you manage your personal, business, and corporate telephony requirements all from a single app (Web, Android, iOS). Get international numbers right from the comfort of your home. KrispCall helps you own national, toll-free, local, shortcode, and international numbers (for over 100 countries) in no time. Manage your call logs effortlessly. KrispCall’s unified callbox allows you to handle and monitor your business calls, recorded conversations, texts, and voicemails all from a single window. Earn trust of your international clients by calling them through their local numbers. KrispCall offers international phone numbers for your business at the most affordable price. With our embeddable widget, you are just a click away from your customers. Clients can now call you directly without hassles by simply clicking on the KrispCall’s widget embedded in your website.

98 Ratings

Starting Price: $15 per user per month

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Thirdlane

Thirdlane is a scalable UCaaS platform that blends multi-tenant PBX, Contact Center, and collaboration apps into one solution. MSPs, Enterprises, and telecom providers adopt Thirdlane when they want freedom of deployment, deep integrations, and reliable control over their communications stack. Whether your team prefers cloud-hosted services or on-premises deployments, Thirdlane adapts to your strategy. IT departments appreciate the API-first design, while business leaders value the ability to cut costs and avoid lock-in. Core benefits: - Enterprise-grade PBX with calling, video meetings, voicemail, and advanced routing. - Unified Thirdlane Connect apps for chat, video meetings, and file sharing. - Built-in Contact Center - Advanced analytics to improve service and sales. - CRM integration for context-rich customer interactions. - White-label branding across all user touchpoints. - Options for geo-redundancy and high availability.

29 Ratings

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Dialpad Connect

Dialpad

Dialpad Connect is an AI-powered unified communications platform that combines voice, video, and messaging to enhance team collaboration and customer interactions. It features real-time call transcription, automated call summaries, and AI-generated action items to help users stay focused during conversations. The platform integrates seamlessly with popular business apps like Salesforce, Zendesk, Microsoft Teams, and Google Workspace to streamline workflows. Designed for businesses of all sizes, Dialpad Connect delivers enterprise-grade reliability with 100% uptime SLA and robust disaster recovery. Security and privacy are core priorities, meeting standards like GDPR, HIPAA, and SOC 2 compliance. Dialpad Connect helps companies elevate customer experiences while boosting team productivity.

18 Ratings

Starting Price: $15/user/month

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Zoom Phone

Zoom Communications

The cloud phone solution, natively built for the Zoom platform. Enterprise-class features with a modern user experience to streamline voice communications. Provision and manage users, monitor call quality and usage data in the Zoom administrator portal. The globally distributed Zoom cloud platform delivers secure HD Voice with enterprise-class reliability and quality of service. Seamlessly make and receive phone calls, share content, participate in video meetings, and send chat messages from Zoom desktop and mobile apps. Easily elevate phone calls to a Zoom Meeting without requiring participants to hang up and dial-in to a separate conference bridge. Native apps for Windows, MacOS, iOS, and Android are designed for ease of use while maximizing voice and video quality of service. An ever-expanding footprint of countries to provide local phone numbers. For customers who wish to streamline global telephony carrier management, porting numbers to Zoom has never been easier.

22 Ratings

Starting Price: $14.99 per user per month

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Zadarma

Powerful Cloud Telephony for Global Businesses Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface. Key features: - Virtual phone numbers in 110+ countries - Free cloud PBX with IVR, call routing, and analytics - Integration with CRMs: HubSpot, Zoho, Bitrix24, and more - AI Voice Agent and AI-speech recognition and analytics - Apps for desktop, mobile, and browser-based calling - AI-powered voice agents and call tracking - Full control via web interface and API Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.

12 Ratings

Starting Price: $2/month

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Google Voice

Google

Stay connected, organized, and on task with an easy-to-use phone solution that fits organizations of any size. Voice makes work calls less work. Make and receive phone calls using a work number on any device, anywhere. Start communicating more effectively. Voice can be customized to fit your day-to-day workflow. Number assignment, porting, and billing are neatly consolidated in the familiar G Suite Admin console. Google's powerful AI filters spam calls, transcribes voicemail automatically, and lets you configure your PBX. Integrations with Hangouts Meet and Calendar keep the focus on what's important. Voice can be deployed instantly — and globally — from anywhere, with less administrative work. Focus on what's important while staying connected on deskphones, smartphones, and the web.

7 Ratings

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Cisco Webex Calling

Cisco

A complete business phone service, in the cloud. Webex Calling gives you a phone service in the cloud so you can make and receive calls on any device, anywhere—all without the overhead and hassle of managing it. A business phone service built for your growing business. Take calls with your business phone number from anywhere, on any device, with a full set of powerful cloud calling features. Forget the costly overhead of a physical business phone system, and easily manage all your services, users, and security in one place. Webex Calling has security built-in as a key foundational element without requiring settings to be updated to stay protected. Make calls with extension numbers, direct inward dialing (DID) numbers, directory URIs (email-style addresses), or directory-based dialing. Never miss an important call with features like shared lines, hunt groups, call waiting, hold/resume, pickup, forward, do not disturb and transfer.

5 Ratings

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DID Global

DID Global is a telecommunications partner for your business, providing communication and data services based on VOIP services and other small and wide spectrum technologies. Our services are chosen when they want to provide their business with rapid scaling, reduced advertising costs and increased sales. We operate in more than 150+ countries around the world offering the best conditions for our customers. Our services - VOIP telephony - PBX - Virtual (DID) numbers - SIP Trunk - SPAM checker - SMS service mailing All your customer communication solution in one place. Scale up and open the world to your business with DID Global.

4 Ratings

Starting Price: $10/users

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Calilio

Calilio is a cloud-based business phone system and AI call center platform for sales, support, remote teams, and call centers. It enables businesses to make and receive internet-based calls, send SMS/MMS, buy or port virtual phone numbers, route calls, record conversations, monitor agents, and track call activity from one platform. With virtual numbers from 100+ countries, Calilio supports local, mobile, and toll-free numbers. Features include a unified Callbox, IVR, call forwarding, voicemail, number sharing, business hours, call transfer, power dialer, click-to-call, custom caller ID, call recording, live monitoring, whispering, barging, and analytics. AI-powered call reports provide transcription, summaries, sentiment analysis, call reasons, resolutions, and follow-up suggestions, helping businesses improve communication and customer service.

8 Ratings

Starting Price: $15 Per user/month

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net2phone

net2phone provides innovative and affordable cloud based telephony software and services to both small and mid-sized businesses and large or multinational enterprises. Our Unified Communications and Contact Center solutions provide advanced features that can be customized to suit your unique business needs while ensuring simplicity through implementation and use. net2phone’s compelling UCaaS offer combines voice, video, chat, and messaging under one platform, includes advanced features and integrations, and unlimited calling to over forty popular destination countries. uContact, net2phone’s omnichannel CCaaS solution, streamlines all voice and digital interactions, enabling contact centers to meet customers in the digital channel of their choice and integrating all touchpoints into a Unified Inbox. Other flagship solutions include SIP Trunking services, native integration with Microsoft Teams, and international connectivity capabilities.

3 Ratings

Starting Price: $17.99/month/user

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VND PBX

VNDSOLUTIONS LIMITED

Our cloud-based hosted PBX gives you phone numbers so you can grow your business. Connect your SIP device or your current phone to our cloud PBX. Build complex calling dial-plans and enjoy features via our PBX portal. No contract with us and SAVE 70% from your current service provider. Use our business grade Hosted cloud PBX or SIP trunk service, tell us your needs and we will recommend you. Our VoIP solutions are designed specifically for businesses who want hassle free, reliable and extendable solution with no time. You enhance the features of your existing product by using our powerful Telephony API’s. Both Hosted PBX and SIP Trunking support API calls. Our robust & powerful API’s are very easy to integrate. We monitor our support lines 24/7 so give us a call or talk to our support team via live chat on our web (https://vndpbx.com). New Zealand: 0 9 8896552 (Auckland) U.S.A: +1 929 4809552 (New York)

3 Ratings

Starting Price: $11 per month

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Best Business VoIP Providers in the UK

Compare the Top Business VoIP Providers in the UK as of July 2026

What are Business VoIP Providers in the UK?