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Unified Communications as a Service

Unified Communications as a Service Reviews and Ratings

What are Unified Communications as a Service?

Gartner defines unified communications as a service (UCaaS) as a multitenant, subscription-based service that is cloud-delivered. It provides business telephony features; public switched telephone network (PSTN) connectivity that enables inbound and/or outbound external calling; and collaboration features, such as messaging and meetings. UCaaS services can be consumed by end users with traditional handsets, desktop clients, web clients, meeting room systems and mobile apps.

UCaaS is used by organizations to securely communicate and collaborate — both internally and externally. It includes telephony, messaging and meetings. UCaaS providers may offer variations of each of the three core modes of communication and also offer a range of cloud contact center functionalities, either self-developed or through integration/partnerships with cloud contact center specialists.

Gartner’s definition of meetings for the UCaaS market mostly focuses on the capabilities for internal collaboration, work from home and external presentation meeting use cases. Other specialized use cases — such as webinar, remote support, distance learning and training — are often available from UCaaS offerings, but are not mandatory for inclusion in this research. These use cases are part of a separate market defined by Gartner (the meeting solutions market).

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Product Listings

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Logo of Microsoft Teams

Microsoft Teams

By Microsoft

4.5
(1603 Ratings)

Microsoft Teams is a collaboration software that integrates chat, video meetings, file storage and application integration to facilitate communication and teamwork. It supports real-time messaging, voice and video conferencing, and threaded conversations, enabling users to collaborate on projects and share files within team channels. The software allows integration with various third-party and Microsoft 365 applications, providing a centralized workspace for document management and workflow automation. Microsoft Teams is designed to support remote and distributed work environments, addressing business needs for secure communication, coordination, and productivity among organizations of varying sizes.

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Logo of RingEX

RingEX

By RingCentral

4.3
(720 Ratings)

RingEX is a cloud-based communications software that integrates voice, video, messaging, and collaboration tools into a unified platform for businesses. The software offers features such as phone calls, video meetings, team messaging, and file sharing, accessible from desktop and mobile devices. It includes management capabilities like call routing, analytics, and administrative controls, supporting organizations in streamlining communication processes and enhancing team coordination. RingEX addresses the need for flexible, scalable, and secure communication solutions, enabling remote and distributed teams to connect and collaborate efficiently while centralizing communication management within a single platform.

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Logo of Microsoft Skype for Business Online (Legacy)

Microsoft Skype for Business Online (Legacy)

By Microsoft

4.3
(687 Ratings)

Microsoft Skype for Business Online (Legacy) is a communication software that facilitates instant messaging, voice calls, video conferencing, and online meetings for organizations. The software integrates with other Microsoft Office applications to enable seamless collaboration among teams, allowing users to schedule meetings, share screens, and exchange files within a secure environment. Skype for Business Online streamlines communication workflows, supports presence information, and provides enterprise-grade management and security controls. This software addresses the need for remote and distributed workforce connectivity by offering tools for real-time interaction, reducing reliance on email, and enhancing productivity in business environments.

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Logo of Nextiva Unified Customer Experience Management Platform

Nextiva Unified Customer Experience Management Platform

By Nextiva

4.6
(668 Ratings)

Nextiva powers over a million users and billions of interactions annually with its customer experience platform. From one AI-powered customer experience hub, Nextiva Unified-CXM transforms how businesses engage with their customers with orchestrated customer journeys that help businesses acquire, retain, and grow customers.

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Logo of Webex Suite

Webex Suite

By Cisco Systems

4.4
(550 Ratings)
customers choice 2025

Webex Suite is an all-in-one, collaboration suite built on a secure Webex Platform with artificial intelligence features built-in. With 8 individual workloads – Webex Suite brings together Meetings, Messaging, Calling, Webinar, Events, Polling, Whiteboarding and Video Messaging in one collaboration experience to maximize productivity and teamwork. With a variety of collaboration features, Webex Suite helps bridge the gap between office and remote workers, remove language barriers, and overcome time zone differences. Enjoy the flexibility to work from anywhere and to keep teams focused and engaged with unified, intuitive experiences and integrated AI across the entire suite. All workloads in the Webex Suite can be managed via the single-pane-of-glass administration portal, Control Hub. It also allows you to protect your teams’ data and privacy with enterprise-grade security built in from the ground up.

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Logo of Zoom Phone

Zoom Phone

By Zoom

4.5
(391 Ratings)
customers choice 2025

Zoom Phone is a cloud-based phone software that integrates with Zoom’s unified communications platform. It offers features such as voice calling, call forwarding, voicemail, call recording, and automated attendants. The software supports direct dial numbers, call management tools, and analytics for call activity. It provides compatibility with multiple devices, including desktops and mobile devices, and enables integration with existing contact directories. Zoom Phone is designed to streamline voice communications for businesses, allowing teams to manage calls efficiently and consolidate communication channels within one platform.

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Logo of Vonage Business Communications (VBC)

Vonage Business Communications (VBC)

By Ericsson (Vonage)

4.5
(381 Ratings)

Vonage Business Communications is a cloud-based unified communications software designed to facilitate business communication and collaboration for organizations of various sizes. The software integrates voice, messaging, video, and conferencing capabilities to enable users to interact internally and externally from multiple devices, including desktops and mobile phones. Vonage Business Communications offers features such as VoIP calling, SMS messaging, call recording, team messaging, and integrations with customer relationship management and productivity applications. The software aims to address the challenge of scattered business communications by providing a single platform for managing calls, messages, meetings, and contacts. It is structured to enhance workflow efficiency and support remote and hybrid work models.

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Dialpad Connect

By Dialpad

4.5
(367 Ratings)

Dialpad Connect is a cloud-based communication software that provides voice calling, messaging, and video conferencing functionalities within a unified interface. The software includes features such as call routing, voicemail transcription, intelligent call analytics, and integrations with productivity tools. Dialpad Connect is designed to facilitate flexible communication for teams operating in different locations by supporting desktop and mobile devices. It offers real-time speech recognition and transcription capabilities, which can help streamline note-taking and follow-up actions. The software addresses business communication challenges by enabling seamless collaboration and centralizing communication management for distributed teams.

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Logo of 8x8 Work

8x8 Work

By 8x8

4.7
(275 Ratings)

8x8 Work is a software that provides unified communications by integrating voice, video meetings, team messaging, and contact center capabilities within a single platform. It enables organizations to facilitate internal and external communication, enhancing collaboration among teams through features such as voicemail, screen sharing, file sharing, and presence indicators. The software supports calling, messaging, and video conferencing from desktop and mobile devices, helping businesses manage communication workflows and streamline employee interactions. 8x8 Work addresses the need for secure, centralized communications infrastructure that can scale with organizational requirements, aiming to improve operational efficiency by minimizing the complexity of managing multiple communication tools.

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Logo of Microsoft 365

Microsoft 365

By Microsoft

4.5
(195 Ratings)

Microsoft 365 is a software suite that provides a range of productivity and collaboration tools, including word processing, spreadsheets, presentations, email, calendaring, and cloud storage. The software integrates applications such as Word, Excel, PowerPoint, Outlook, and OneDrive, enabling users to create, edit, and share documents across devices. It supports real-time collaboration, communication, and file management for individuals and teams. Microsoft 365 offers security features, device management capabilities, and compliance tools to address business requirements and protect organizational data. The software is designed to facilitate workplace efficiency and streamline workflows by centralizing essential business applications.

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Logo of Google Workspace

Google Workspace

By Google

4.6
(164 Ratings)
customers choice 2025

Google Workspace is a software suite that provides cloud-based productivity and collaboration tools for businesses and organizations. It includes applications such as email, calendar, document editing, spreadsheets, presentations, video conferencing, and file storage. The software enables real-time collaboration and communication among users and offers administrative features for security, access control, and user management. Google Workspace integrates with various third-party applications and provides tools for task organization, scheduling, and workflow automation. The software is designed to help teams manage projects, share information, and streamline daily business operations through a unified interface accessible across devices.

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Logo of Zoom Workplace

Zoom Workplace

By Zoom

4.5
(148 Ratings)
customers choice 2025

Zoom Workplace is a software designed to facilitate collaboration and communication among distributed teams within organizations. It integrates video conferencing, team chat, mail, calendar, and scheduling tools to support workflows and streamline daily operations. The software enables users to conduct virtual meetings, send messages, manage schedules, and share files within the same platform. Zoom Workplace aims to improve productivity by centralizing access to essential workplace tools and reducing reliance on multiple separate applications. It offers features such as meeting recording, breakout rooms, whiteboarding, and calendar integration to support various business needs, including remote work, project coordination, and internal communication.

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Logo of Tata Communications GlobalRapide

Tata Communications GlobalRapide

By Tata Communications

4.5
(110 Ratings)

Tata Communications GlobalRapide is a software that provides unified communications and collaboration solutions for businesses. It is designed to integrate various communication tools, including voice calling, video conferencing, messaging, and virtual meetings, into a single platform. The software supports collaboration across distributed teams by offering features such as central management, secure connectivity, monitoring, and analytics. It enables organizations to streamline enterprise communication processes, optimize operational efficiency, and support remote work environments. GlobalRapide addresses business requirements for secure, scalable, and centralized communications management while minimizing complexity and supporting digital transformation initiatives.

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Logo of GoTo Connect

GoTo Connect

By GoTo

4.7
(106 Ratings)

GoTo Connect is a software that integrates cloud-based unified communication and collaboration tools, combining voice, video, messaging, and meeting capabilities in a single platform. It facilitates business communication by offering features such as VoIP calling, virtual meetings, messaging, and contact center functionalities. The software supports remote work and unified communications, enabling organizations to connect teams, manage calls, and streamline workflows. With capabilities such as call routing, voicemail, conferencing, and screen sharing, GoTo Connect aims to address needs related to internal and external communications, helping businesses manage employee and customer interactions efficiently through its centralized interface.

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Logo of Wildix Unified Communications & Collaboration

Wildix Unified Communications & Collaboration

By Wildix

4.6
(96 Ratings)

Wildix is a sales-oriented unified communications platform for businesses needing to serve customers faster across multiple channels, do more with fewer resources, and empower mobile-first teams while maintaining security and efficiency.

Sold through channel partners to over one million users globally, it unifies internal and external communications, bringing voice, video, messaging, screen sharing, collaboration and AI into one secure solution, accessible from desktop and mobile apps.

The solution supports AI-powered insights, agentic automation and advanced analytics that help automate admin tasks, route inquiries intelligently and deliver smarter service.

Wildix also offers optional hardware, SIP and a contact center solution with intelligent call distribution, omnichannel support (voice, chat, email, video), supervisor wallboards, real-time monitoring and historical reporting.

With open APIs and 200+ integrations, Wildix connects seamlessly with CRMs, ERPs and other business tools.

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Logo of Fuze (Legacy)

Fuze (Legacy)

By 8x8

4
(58 Ratings)

Fuze (Legacy) is a software designed to enable unified communications and collaboration across organizations. The software integrates voice, video, messaging, and conferencing functionalities to support seamless communication among distributed teams. It provides users with cloud-based capabilities for hosting meetings, sharing content, and managing contacts through a single platform. The software addresses common challenges such as fragmented communications, lack of mobility, and difficulties in remote collaboration by consolidating these features into one system accessible on various devices. It aims to optimize workflows, facilitate information sharing, and support both real-time and asynchronous communication needs for business environments.

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Logo of Unified Communications and Collaboration as a Service

Unified Communications and Collaboration as a Service

By Verizon

4.3
(54 Ratings)

Unified Communications and Collaboration as a Service is a software designed to facilitate integrated communication and collaboration among business teams. The software combines voice, video conferencing, instant messaging, and file sharing within a unified platform to support remote and on-site workforce interactions. It enables organizations to streamline communication infrastructure, enhance productivity, and simplify management through centralized administration, reducing the complexity of deploying multiple standalone tools. By offering scalable and secure connectivity across devices and locations, the software addresses challenges such as fragmented communication systems and limited interoperability, contributing to more efficient workflows and improved information exchange within enterprises.

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Logo of Office Suite UC

Office Suite UC

By Windstream

4.3
(45 Ratings)

Office Suite UC is a software that provides unified communications solutions for businesses by integrating voice, video, messaging, and collaboration tools into a single platform. The software enables users to manage calls, host virtual meetings, share files, and communicate across devices such as desktops, laptops, and mobile phones. It is designed to address business needs for improved communication, efficient collaboration, and remote connectivity, supporting productivity by consolidating communication channels and simplifying user management. The software offers features including voicemail, auto attendants, call forwarding, and directory services while facilitating connectivity for distributed teams. It aims to support organizations seeking reliable and scalable communication infrastructure without requiring on-premises hardware.

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Logo of Business Voice & Business Voice+

Business Voice & Business Voice+

By Sangoma

4.4
(38 Ratings)

Business Voice and Business Voice+ are cloud-based unified communications software solutions designed to facilitate business communication through voice, messaging, and video conferencing. The software integrates features such as auto-attendant, call routing, voicemail, and mobile applications to streamline organizational workflow and support remote work environments. Business Voice offers core unified communications capabilities, while Business Voice+ enhances the offering with advanced collaboration tools and integrations across devices. The software addresses challenges related to distributed teams, scalability, and secure communication by providing centralized management and consistent user experience for internal and external communications within an organization.

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Logo of UC One (Legacy)

UC One (Legacy)

By Cisco Systems

4.9
(38 Ratings)
customers choice 2025

UC One is a software that provides unified communications capabilities, including messaging, voice calling, video conferencing, and file sharing, designed for businesses to enhance collaboration among employees. The software integrates multiple communication channels into a single platform, allowing users to communicate and work together efficiently through chat, voice, and video. UC One supports cross-device compatibility, enabling access from desktop computers, tablets, and smartphones. It addresses the business need for streamlined communication, improved workflow, and reduced dependence on multiple tools or platforms. The software aims to facilitate productivity and connectivity for teams working in both office and remote environments.

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Features of Unified Communications as a Service

Updated October 2025

Mandatory Features:

  • Messaging features: The following capabilities must be included, at a minimum: 1. The ability to enable users to exchange richly formatted instant messages (IMs) with emojis, images, file attachments and links in real time. 2. Support for personal messaging for 1:1 communication (also known as “chat”), as well as team messaging for groups using conversational user experiences. 3. Support for presence and status indicators that allows users to view the availability and status of other users and resources in their organizations.

  • Enterprise telephony features: This functionality must be supported through physical IP phones, physical analog phones; analog devices (e.g., fax machines and fire alarm panels); desktop apps; web apps; or mobile apps. It must include at least the following features: 1. Emergency calling services with notifications connectivity to the PSTN. 2. Survivability 3. Basic internal or external calling 4. Call forwarding 5. Call transfer 6. Shared-line call appearances 7. Voicemail 8. Call logging 9. Call recording 10. Encryption 11. Account codes 12. Hunt groups 13. Queues with announcements 14. Attendant consoles (for receptionists) 15. Delegation (for administrative assistants) 16. Auto attendants 17. Interactive voice responses (IVR) for self-service 18. Hot desking (used in shared workspaces)

  • Meeting functionality: These features must be accessible via desktop app, mobile app, web app or meeting room systems. They must include at least the following features: 1. Multiparty audio/video conferencing with content sharing (screen and application sharing) 2. In-meeting messaging 3. File sharing 4. Customizable layouts 5. Closed captioning 6. Meeting summaries 7. Recording 8. Virtual backgrounds 9. Breakout session support 10. Reactions and other social engagement features

Peer Lessons Learned for Unified Communications as a Service

Published June 2025

These lessons focuses on the responses to the questions: “If you could start over, what would your organization do differently?” and “What one piece of advice would you give other prospective customers?”

Peer Lessons Learned for Unified Communications as a ServiceLessons learned by your peers shared on Gartner Peer Insights for Unified Communications as a ServicePeer Lessons Learned for Unified Communications as aServiceLesson 1LESSON1Outline Your Organization's UCaaS Needs;Ensure Stakeholder Buy-InLesson 2LESSON2Evaluate UCaaS Offerings Through Demos;Analyze Integration Capabilities for ScalabilityLesson 3LESSON3Provide In-Depth UCaaS Training and HostOnboarding Sessions to Maximize UserAdoptionLesson 4LESSON4Standardize Processes and Check DataReadiness Ahead of the UCaaS SolutionImplementationLesson 5LESSON5Utilize In-House and Third-Party Expertise toImplement the UCaaS Solution Incrementallyn = 341Source: Reviews (341) submitted to Gartner Peer InsightsID: 6656434Gartner ®
Read Full Insights

Gartner Research

Magic Quadrant for Unified Communications as a ServiceCritical Capabilities for Unified Communications as a Service
Gartner Peer Insights 'Voice of the Customer': Unified Communications as a Service

Top Trending Products

Microsoft TeamsGoogle WorkspaceWebex SuiteMicrosoft 3658x8 WorkZoom WorkplaceVonage Business Communications (VBC)RingEXTata Communications GlobalRapideDialpad Connect

Popular Product Comparisons

3CX vs Microsoft TeamsMicrosoft Teams vs Zoom Phone3CX vs RingEXNextiva Unified Customer Experience Management Platform vs RingEXMicrosoft Teams vs RingEXMicrosoft Teams vs Webex Suite3CX vs Wildix Unified Communications & Collaboration3CX vs Zoom PhoneRingEX vs Zoom Phone

Gartner Peer Insights content consists of the opinions of individual end users based on their own experiences, and should not be construed as statements of fact, nor do they represent the views of Gartner or its affiliates. Gartner does not endorse any vendor, product or service depicted in this content nor makes any warranties, expressed or implied, with respect to this content, about its accuracy or completeness, including any warranties of merchantability or fitness for a particular purpose.

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