Best Unified Communications Software in the UK

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.

VirtualPBX gives small businesses a complete, high-powered cloud phone system for $15/user/month with every single feature already included. One simple plan. No contracts. No feature gates. Zero surprises. Just smarter voice for your business—whether your team is at a desk, on the road, or working from home. Deploy AI FrontDesk whenever you're ready for intelligent 24/7 call handling, and scale into advanced messaging tools as your business grows. As the pioneers who invented cloud telephony in 1997, we back every account with expert, U.S.-based human support from people who genuinely understand small business. Because having the right technology is important—but having the right team behind it levels the playing field.

Founded in 2003, Digital Samba is a privacy-first video conferencing provider operating from within the European Union — home to the world's strongest data protection laws — and serving a global audience. Our solutions are designed with zero tracking, robust security, and long-term reliability at their core. We offer both a free, ready-to-use platform for meetings, education, webinars, training, and events, as well as Digital Samba Embedded, an API and SDK that enables organisations to integrate fully customisable, branded video conferencing directly into their own applications. Digital Samba combines minimalist design with powerful features, including HD video and audio, screen sharing, breakout rooms, interactive whiteboards, AI captions and summaries, polling, Q&A, and secure cloud recordings. For developers and enterprises, advanced options such as full white labelling, CNAME support, API control, and webhooks make deep integration seamless.

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.

ClickSend is a simple, global SMS platform built for developers and the businesses they support. Built on a battle-tested API that always delivers with: - Billions of messages delivered globally - Direct routes only to 190+ countries - 99.95%+ uptime - Lightning-fast delivery - Pay-as-you-go pricing — no lock-ins - 24/7 support from people who actually understand APIs - It works straight out of the box — and keeps working as you scale. Already use Zapier, ActiveCampaign, Make or Power Automate? There are pre-built integrations ready to go. Sign up and send your first message in minutes with free test credits. Perfect for: alerts, 2FA codes, marketing campaigns and transactional messaging.

#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.

Sococo is the virtual office where distributed teams come to work together each day, side-by-side, no matter where team members might be. Down the hall, across campus, or halfway around the world—working in your organization's online office is even more productive than being on the same floor or in the same room.

Yeastar Cloud PBX is a fully-featured future-ready phone system ideally suited for SMBs. With Linkus UC Clients, you will gain easy access to enhanced call efficiency and remote working agility across any device at your choice. With 100% hosted deployment, there is no upfront hardware cost and the in-house management overheads are reduced to almost nothing. Together with easy to use and full compatibility features, any migration or upgrade to Yeastar’s hosted solution will be as easy as a breeze. * Please note that Yeastar P-Series PBX System is the new Yeastar Cloud PBX that comes with versatile call center features and unified communications features.

Transactional messages, OTPs, promotions: all delivered timely and safely to your customers’ mobile phones. IVR, Click-to-Call, call forwarding, call recording, and call masking features for any app, platform, or website. Conversate with your customers on the most widely-used instant messaging app, and send media attachments. Automate your customer engagement flows with AI-based chatbots for scalable customer interactions. Design multi-channel communication flows with our easy drag-and-drop visual editor. Or use our pre-defined templates. You likely won’t need our support team, but we’re right here if you do. We offer enterprise-grade security to customers in highly-regulated sectors. Our technology allows growing any communication channel, without limits. Automate your customer engagement flows with AI-based chatbots for scalable customer interactions.

The industry’s true serverless platform for voice, video, and messaging APIs trusted by thousands of developers around the world to innovate and scale real-time communications for businesses of any size.

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.

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.

MaxContact is suitable for sites from 6 – 1000+ users, with clients around the world in all sectors including BPO’s, financial services, utility providers and many more. MaxContact is a proven supplier to some of the market leaders in these fields.

ingover Group is a European SaaS software publisher and telephone operator since 2005. A true expert in business telecoms, since early 2018 it has been offering Ringover, a voice - video - chat - SMS and call centre communication solution, 100% cloud and trusted by 10,000 users. Integrable with business apps and offering real-time statistics, Ringover makes it possible to manage business communications in just a few clicks. Our keys: end-to-end technological expertise, a user-friendly interface and full support at every stage. With Ringover, your business communications are possible anywhere in the world via PCs or smartphones. A standard internet connection is all you need!

IntelePeer's Communications Automation Platform (CAP) is a cloud-based solution designed to help businesses automate customer interactions, thereby enhancing customer experiences, reducing costs, and boosting productivity. The platform is user-friendly, scalable, and integrates seamlessly with a wide range of enterprise applications. Powered by generative AI, IntelePeer's CAP enables hyper-automated, omnichannel communications, delivering voice, SMS, social messaging, and more. It supports on-premises, cloud, and hybrid infrastructures, allowing organizations to modernize operations and communications effortlessly. Additionally, the platform ensures enterprise-grade security and compliance, safeguarding both organizational and customer data.

Advanced conversational intelligence for unparalleled customer experience. Context-aware solutions to provide the best customer experience within a single powerful platform.​​ Services are enabled by seamless, and hassle-free multi-channel interactions with your customers.​ Empowered, context-aware interactions to build relationships with your customers.​ Engage is a platform that enables one-stop context-aware communication and collaboration for any industry looking to improve and streamline their customer interactions for any business services while driving great customer experiences. The solution empowers employees to deliver effectively from anywhere, anytime using any mobile device.​ A requirement assessment questionnaire that identifies your unique needs.​ Configure staff, departments, divisions, and locations, and appointment time-slot creation. ​Create service time-slots at the level of any entity (staff/dept/location) with intervals suited for your business or service.​

Modernize to a cloud-based phone system and watch your business grow. Now more than ever, businesses need to communicate from anywhere on any device in real time. Our feature-rich cloud-based solution will support and adapt to your needs, making your business more efficient and productive. Our platform is 100% supported U.S. based support, solutions engineered and custom developed in-house. Right now, you're probably paying for a hardware system, in addition to paying maintenance fees and paying your service provider for dial tone all at the same time. With Crexendo’s Cloud Communications, you remove all of those costs and can recognize savings up to 55%! We focus on understanding your business and pain points so we can build the best package of solutions for you at the right price. We do all the legwork to make sure we're meeting your needs. From build, to test and train; we get you ready for launch.

Magna5 helps organizations modernize and secure IT operations with managed services spanning cloud, security, backup & recovery, help desk, and communications. We design, implement, and support solutions that reduce complexity and improve reliability—backed by 24/7 operational support.

PBX, or private branch exchange, is the private telephone network used by companies and organizations to keep internal and external phone communication working. It includes features like transfers, voicemail, interactive voice menus and more. With Cloud PBX services, you continue to get all the features you need and want but so much more. Increased mobility, better security, scalability that works for you now and in the future. We learn about your business needs and then create solutions to meet them. We pride ourselves on being the most transparent, service-driven connectivity provider in the industry. New technologies facilitate voice communications over the Internet, all at reduced costs and with enhanced reliability and scalability. We’ll assist you in moving forward with the newest technology or from legacy or outdated systems. Bridging business connectivity and customer service, Coeo ensures seamless, high-quality connectivity with industry-leading security levels.

Intalk.io is a Multi-Channel Call Center Software Solution in India equipped with enterprise-grade Communication abilities. Intalk.io unifies all business communication channels – voice, email, SMS, webchat and social media within a dynamic & robust, centrally managed Customer Experience Management Platform. With the Cloud Contact Center Software, you can have a seamless experience as our state-of-the-art solutions make it easier for you to manage the workflow. If you have CX on your mind, then this solution is for you! Intalk.io ensures that your customers have a seamless experience while interacting with you. A call center management software that focuses on helping you overcome every hurdle and establishing stronger customer relationships. There is no better way to market your product/service than a happy customer who will advocate about your brand through word of mouth. If you focus on an enriched customer experience, your business is bound to grow.