Best UCaaS Platforms in the UK
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Compare the Top UCaaS Platforms in the UK as of October 2026
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What are UCaaS Platforms in the UK?
Unified Communications as a Service (UCaaS) platforms deliver cloud-based communication and collaboration tools that enable organizations to connect employees, customers, and partners through a single integrated solution. These platforms combine voice calling, video conferencing, team messaging, SMS, file sharing, presence, voicemail, and collaboration capabilities while eliminating the need for on-premises communications infrastructure. UCaaS solutions often include enterprise telephony, mobile and desktop applications, call routing, meeting management, contact synchronization, and administrative controls to support hybrid and remote workforces. Many platforms integrate with CRM systems, contact center software, productivity suites, identity providers, and business applications to streamline communications and workflows. By consolidating business communications into a scalable cloud service, UCaaS platforms help organizations improve collaboration, increase productivity, reduce IT complexity, and lower communication costs. Compare and read user reviews of the best UCaaS platforms in the UK currently available using the table below. This list is updated regularly.
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1
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.Starting Price: $22.99/user -
2
PBXware
Bicom Systems
Our platform is built for service providers delivering unified communications as a managed service under their own brand. Multi-tenancy means each client gets an isolated configuration on a shared installation, which keeps infrastructure lean and margins healthy as the client base grows. For providers with clients running full contact center operations, our omnichannel CC offers agent and supervisor workspaces, skill-based routing, dialer, and 40 plus reports. The full UC stack is included across all plans: voice, video, chat, meetings, and v8 AI features covering Voice Agents, Live Transcription, and multi-CRM support with automatic activity logging across channels and devices. gloCOM Next is the client-facing app, fully brandable. We handle development, updates, and support, so providers focus on growing their business. -
3
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. -
4
ULTATEL
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.Starting Price: $14.95 per user per month -
5
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.Starting Price: $15/user/month -
6
Fuze
Fuze
#1 Global Cloud Communication Platform & Collaboration Software for Enterprises. Simplify the complexity of managing your on-premises communications systems with Fuze. Superior voice quality and uptime through unmetered calling to over 110 countries with over 50 carriers, providing an ideal option for enterprises with a wide-range global footprint. With more than 10 years of experience working with customers around the globe, we can provide a roadmap to ensure you get full value out of your Fuze deployment. The all-in-one application that works seamlessly across all locations and devices, giving a comprehensive view of usage, engagement, and productivity across the organization. Modernize your communications with the #1 global cloud platform for unified voice, HD video calling and conferencing, integrated chatting, content sharing, and contact center.Starting Price: $20 per user per month -
7
Genesys Cloud CX
Genesys
Genesys Cloud CX is a comprehensive, cloud-based contact center solution designed to deliver exceptional customer experiences across various communication channels. Built with scalability and flexibility in mind, it integrates voice, chat, email, social media, and messaging platforms into a unified interface. The platform leverages advanced AI and analytics to provide real-time insights, automate routine tasks, and personalize interactions, ensuring efficient and effective customer engagement. With its robust workforce management tools, businesses can optimize staffing and performance while maintaining high service standards. Genesys Cloud CX is designed for seamless deployment and adaptability, making it an ideal solution for organizations of all sizes looking to enhance their customer service capabilities.Starting Price: $75 per user per month -
8
Vonage Business
Vonage
Vonage Business is a leading cloud communications platform for businesses of all sizes and industries. Vonage Business covers all the communication needs of organizations looking to succeed, offering more than 40 business-critical features, mobility, conferencing, and integration with top cloud applications. Trusted by more than 500,000 business users, Vonage is available in a number of plans and packages that fit various business requirements.Starting Price: $19.99/month/user -
9
CoreNexa
CoreDial
Introducing CoreNexa: A transformative UCaaS platform and business model driving channel success, and delivering rich and comprehensive end-user experiences! CoreNexa improves the productivity and capabilities for all end users with a powerful Unified Communications Client and fully integrated mobile application, a class-leading omni-channel Contact Center and proven administration platform. By exceeding end users’ expectations, CoreNexaTM will empower you to be more successful than ever before while maintaining your core ability to sell, deliver, manage, and invoice. CoreNexaTM grew from a steadfast dedication to providing our Channel Partners with a platform that enables exceptional success in building a strong cloud communications business. After spending more than a decade developing the most competitive model for Partners to sell, deliver, manage, and invoice for cloud communications services, we’re devoting focus to the rich end user experiences your customers expect. -
10
2600Hz
2600Hz
An unrivaled UCaaS solution designed to empower Service Provider success. Differentiate your brand and offering in the market with a completely customizable, white label solution. KAZOO is 2600Hz's turnkey UC platform, offering the flexibility you need to provide a superior communication experience. Give your customers a communication solution that will make them successful. 300+ APIs enable you to customize a solution to help your customers do business better. White label your solution to build and maintain your brand recognition in the market. Low upfront costs let you get started quicker and stay cost competitive. Reliability and geo-redundancy ensures your customers are always online. Mobile ready lets your customers get business done when and where they need to. KAZOO is a multi-tenant platform and gives you the ability to open your sales channels. Bring on resellers, go direct, or have an agent model.Starting Price: $3.50/month -
11
Nextiva
Nextiva
Nextiva is an AI-powered Unified Customer Experience Management (Unified-CXM) platform that helps businesses acquire, retain, and grow customers through seamless, personalized interactions. It unifies voice, chat, messaging, social, email, video, and reviews into one platform, eliminating silos and improving collaboration across teams. With patented customer journey orchestration, companies gain real-time insights and automate workflows that improve customer retention while lowering costs. Built-in AI and automation simplify self-service, optimize agent productivity, and deliver measurable efficiency. Nextiva’s workforce engagement tools reduce attrition, boost performance, and connect front-line employees with back-office teams. Trusted by thousands of innovative companies worldwide, and recognized as a Strong Performer in Gartner’s 2025 “Voice of the Customer” CCaaS report, Nextiva is redefining how businesses deliver meaningful customer experiences.Starting Price: $19.95 per month -
12
ClarityTel
ClarityTel
When you're looking for cost-effective, easy-to-use phone system solutions for your business, turn to ClarityTel. A trusted provider of advanced phone systems in the cloud, ClarityTel helps organizations meet their communication needs at a fraction of the cost of a traditional landline. Get the next generation of VoIP phones with ClarityTel. Technology that fits your needs. Our business VoIP solutions are customized for clients of any size. Save up to 60 percent for clear savings. We give you all the business VoIP solution you need for one low month-to-month rate, with no additional fees. Business VoIP, which is a commercial-class version of residential VoIP services, provides small, medium, large and enterprise-sized businesses with advanced features and functionality such as voicemail with email delivery, conference calling, live answering and automated attendants.Starting Price: $19.99 per month -
13
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 MoreStarting Price: $19.99 Mo/Ext -
14
Broadvoice simplifies communications for small and medium businesses (SMBs) by combining powerful cloud PBX, UC and collaboration features with virtual call center in one award-winning Unified Communications as a Service (UCaaS) platform that delivers enterprise-class features at affordable rates. The platform is connected to Broadvoice’s secure, redundant network and hosting infrastructure, enabling SMBs to connect with customers securely anytime, anywhere and with any device. Broadvoice is ranked in the Deloitte Technology Fast 500 and Inc. 500 Fastest Growing Private Companies in America.Starting Price: $10/month
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15
Microtalk
Microtalk Europe Limited
Microtalk provides cloud-based phone solutions that enable businesses to connect securely from anywhere. Its hosted voice platform is designed for everyone, from single users to call centers with 10,000+ agents. The Microtalk Cloud Phone System includes advanced features like IVR, call recording, ring groups, skills-based routing, and HD quality calling. For contact centers, Microtalk offers scalable VoIP trunks, toll-free and DID numbers, and a hosted predictive dialer. The company also delivers high-speed fibre internet with speeds up to 10Gb, alongside SMS services for mass campaigns, scheduling, and compliance. Trusted by over 10,000 customers across 15 countries, Microtalk combines cost efficiency, easy integration, and 24/7 support.Starting Price: $20/month -
16
Newbridge
Newbridge Business Solutions
Newbridge delivers a UCaaS cloud contact center platform technology solution that includes Omnichannel, IVR, Social Media, WFM, and Office Phones. As the leading contact center platform in the industry in innovation, customization, and affordability, Newbridge integrates with our experts and industry partners to design, optimize, and support the people and processes through state-of-the-art SaaS technology. For other technology requirements such as Infrastructure, IT support, MSP needs, and cabling demands, we rely on our trusted partners to ensure seamless integration and implementation of their solutions. -
17
Tata Communications
Tata Communications
Grow your business, boost productivity and maximize efficiencies all at the same time with our comprehensive portfolio of unified communications and collaboration (UCC) solutions that seamlessly integrate with your existing systems while transforming your user experience. Our unified communications solutions allow you to easily connect, communicate and collaborate with employees and customers worldwide over video, web or audio conferencing. Radically improve customer experience and end-user loyalty using omni-channel cloud contact centre solutions with Tata Communications’ unified communications services. Improve efficiency and lower telephony costs across your business by unifying conferencing and leveraging Global SIP Trunking for IP telephony and video calling.” Seamlessly improve collaboration and productivity across audio, web or video (Unified Communications), while at the same time boosting productivity across your customers’ infrastructures. -
18
Evolve IP
Evolve IP
Realize the full potential of your workforce with best-of-breed collaboration solutions from Microsoft and Cisco that are integrated directly with Evolve IP’s analyst-acclaimed enterprise voice and communications services. We’ll deploy a Purpose-Built® solution, tailored just for your business, that will dramatically increase employee productivity and drive organizational efficiency. Evolve IP Desktop Services, (DaaS, RMM, ITaaS and more) enable employees to work from anywhere while enabling IT departments to easily manage, protect and update all of your associates’ devices and applications. Provide a ‘WOW!’ customer experience with Evolve IP’s analyst-acclaimed omnichannel contact center solution. Named to Gartner’s CCaaS Magic Quadrant three years running, with the highest client recommendation rating of all selected providers, our integrated communications and contact center platform will be Purpose-Built® for your business. -
19
CallTower
CallTower
Since its inception in 2002, CallTower has evolved into a global cloud-based, enterprise-class Unified Communications, Contact Center and Collaboration solutions provider for growing organizations worldwide. CallTower provides, integrates and supports industry-leading solutions, including Operator Connect for Microsoft® Teams, Teams Direct Routing, GCC High Teams Direct Routing, Office 365, Cisco® Webex Calling / UCM, Cisco® CCPP, Zoom (BYOC), Zoom Phone, CT Cloud UCaaS and four contact center options, including Five9 for business customers. -
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Momentum Telecom
Momentum
We unleash human momentum with collaboration, connectivity, and communications technology. All business is human—and when custom technology empowers human ingenuity, people and companies thrive. High performing teams do more, achieve more, and win more. Companies become agile, efficient, and resilient. Our team takes pride in making technology easy and cost effective. We love what we do—and it shows in the way we partner with you, from our first conversation to ongoing post-install support. Working with over 30,000 customer locations in 65+ countries, we deliver straightforward, secure, and scalable global managed services and advanced collaboration and communications solutions. Together let’s build your human momentum. More at gomomentum.com
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