Best UCaaS Platforms for Microsoft 365
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Compare the Top UCaaS Platforms that integrate with Microsoft 365 as of July 2026
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This a list of UCaaS platforms that integrate with Microsoft 365. Use the filters on the left to add additional filters for products that have integrations with Microsoft 365. View the products that work with Microsoft 365 in the table below.
What are UCaaS Platforms for Microsoft 365?
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 for Microsoft 365 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. -
2
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. -
3
GoTo Connect
GoTo
GoTo Connect is the all-in-one cloud communications platform for businesses of any size, combining voice, video, messaging, and advanced features on a single, easy-to-manage system. Connect from any device—calls, meetings, and chats stay unified wherever you work. Simple deployment, intuitive management, and robust integrations let teams get started fast and scale effortlessly. AI-driven tools like AI Receptionist greet callers, route conversations, and automate tasks—no third-party apps needed. Benefit from 99.999% uptime, award-winning support, and built-in contact center features to grow your business and create seamless customer experiences. GoTo Connect: reliable communications, powered by modern automation and built for business success. -
4
Zoom
Zoom Communications
Enterprise video conferencing with real-time messaging & content sharing with Zoom Meetings & Chat. Simplified video conferencing and messaging across any device. Enable quick adoption with meeting capabilities that make it easy to start, join, and collaborate across any device. Zoom Meetings syncs with your calendar system and delivers streamlined enterprise-grade video conferencing from desktop and mobile. Enable internal and external communications, all-hands meetings, and trainings through one platform. Bring HD video and audio to your meetings with support for up to 1000 video participants and 49 videos on screen. Multiple participants can share their screens simultaneously and co-annotate for a more interactive meeting. End-to-end encryption for all meetings, role-based user security, password protection, waiting rooms, and place attendee on hold. Record your meetings locally or to the cloud, with searchable transcripts. Zoom also offers a HIPAA compliant plan for healthcare.Starting Price: $14.99 per user per month -
5
Microsoft Teams
Microsoft
Solving today's complex business problems takes teams of engaged people working together. We’ve built an online guide to teach you and your team the secrets of successful teamwork. When you have a place to create and make decisions as a team, there’s no limit to what you can achieve. Teams brings everything together in a shared workspace where you can chat, meet, share files, and work with business apps. Get your team on the same page with group chat, online meetings, calling, and web conferencing. Collaborate on files with built-in Microsoft 365 (formerly Office 365) apps like Word, Excel, PowerPoint, and SharePoint. Add in your favorite Microsoft apps and third-party services to keep the business moving forward. Get end-to-end security, administrative control, and compliance—all powered by Microsoft 365. Teams is designed for groups of all kinds. Get started with the free, no-commitments version. You can also get Teams as part of the best-in-class suite of productivity tools.Starting Price: $12.50 per user per month -
6
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 -
7
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 -
8
Sherweb
Sherweb
A secure and reliable solution for your online business. Everything you need to get started. A user-friendly control panel to manage your website. Experienced support technicians. Access to a huge library of pre-configured web apps for your website. With Sherweb as your trusted cloud partner, you’ll be surprised by what you can achieve. Our full-fledged cloud management platform, driven by evolving business needs, empowers IT professionals to leverage agile solutions paired with 5-star service by trusted experts they can count on. We’re born in the cloud – IT folks rest easy knowing our ever-expanding portfolio of innovative products has been hand-picked and pre-vetted, including a selection of proprietary software you won’t find anywhere else. We bring you a mature, powerful platform that doesn’t make you choose between saving time and saving costs. Automate and integrate just about anything, leveraging our cutting-edge APIs.Starting Price: $7.25 per month -
9
Fusion Connect
Fusion Connect
Connect your entire business with one call. Fusion Connect is your Managed Services Provider tailoring business internet solutions for your SD-WAN, business VoIP, unified communications (UCaaS), internet access, secure networking, and more. Fusion Connect's Business VoIP also features Internet-based faxing, SIP trunking, softphone, and auto attendant functions. Compatible with Windows and Mac, as well as device independent.Starting Price: $19.95/month/user -
10
FluentStream
FluentStream
Do you want a business phone service that works without costing a fortune in setup or monthly fees? Wouldn't it be nice to focus on your customers instead of spending hours on hold with your provider every time you want to make a small change? Welcome to FluentStream! We're committed to being the easiest business communication system to do business with. We offer no-contract plans with 24/7 client success for every account. Not only will we hold your hand throughout the entire onboarding process, but we'll do everything on your behalf (including the hassle of calling your internet provider). We know how complicated phone setup can be, and we're more than happy to do the heavy lifting so you don't have to. It's all part of being the easiest business to do business with.Starting Price: $20.00/month/user -
11
UniVoIP
UniVoIP
UniVoIP’s innovative solutions and software drive performance, productivity, and efficiency while embracing and overcoming today’s most demanding business communication trends. The principle product, OfficeConnect™, is an extremely robust and highly flexible solution delivering 500+ PBX, Omnichannel Contact Center and Unified Communication features via private, public or hybrid networking options in a multi-instance infrastructure environment. UniVoIP also offers UniBridge, a powerful, high-definition audio, video and web conferencing, screen-sharing solution that offers meeting logs, timestamps, summaries, no software download required, and custom branding. -
12
CallHarbor
CallHarbor
CallHarbor offers small and medium-sized business phone & UCaaS systems. Our platform give you statistics on your employees, integrates with your existing applications, and allows you to access full functionality even when out of the office. We are so much more than just in and out calling. CallHarbor works with businesses in diverse industries and continually provides industry leading systems to streamline workflow in communication. CallHarbor offers leading mobile and web apps to allow you to work on the go. From making calls on your desktop, to checking your voicemail in your email, we have it all. CallHarbor does not limit the amount of Queues, Auto-Attendants, Parking Lots, or Users your system can have. This makes it easy to start small and grow big. We're with you every step of the way. We have reliable geo-redundant data centers so that you don't have to worry about a dropped call. We offer 25+ world class features with your original plan, and give you one great flat rate.Starting Price: $18/month/user -
13
Avaya Cloud Office
Avaya
Avaya Cloud Office is a cloud-based unified communications solution that combines voice, video, messaging, meetings, and collaboration tools into a single platform. It seamlessly connects office, remote, and mobile workers across multiple devices, ensuring smooth and consistent communication. With features like business phone numbers, voicemail transcription, team messaging, and document sharing, it enhances productivity and collaboration. The platform also prioritizes security with encryption and integrates with over 100 business applications, including Salesforce, Office 365, and G Suite, helping businesses streamline workflows and improve efficiency.Starting Price: $19.99/user/month -
14
ZIRO
ZIRO
Tired of dealing with telecom and UCaaS service providers who don’t listen, push one size fits all solutions, and just make you want to scream? We translate all the UCaaS noise into clear pros and cons so you can choose the ideal call, meeting and messaging tools. You’ll get exactly what you want because we go to bat for you behind the scenes. Get empowered with easy ways to manage your communications technology and thousands of users. Let us handle the setup and provide support whenever you need it. You want to select, set up and support your UC tech with certainty. Our fully managed unified communications services are here! We’ll help you build your ideal collaboration solution, guide you through cloud migration, and more. Our unified communications software makes user provisioning easy. Integrate and manage your UC tools and platforms like Cisco and Microsoft Teams from one dashboard, where you can on/offboard users in a matter of clicks. -
15
NetFortris Comm-unity
NetFortris
Unify Your Communications! Call, chat, text, fax, conference, collaborate and more - all in one platform! NetFortris Comm-unity unifies all your communication — voice, video, messaging, collaboration, conferencing, meetings and call center — on one platform that’s easy to use and simple to run. And, we put it in the cloud, so that your team can collaborate from any device, anywhere — office, home or on the go! NetFortris Comm-unity is designed to meet your business communications needs today and tomorrow. Comm-unity scales easily as your business grows, always works when you need it and gives your team the latest functionality at their fingertips. With all communications channels in one place, you can streamline teamwork and improve productivity. Your team can access Comm-unity from any internet-enabled device to work from home or on the go. Comm-unity expands as your business grows – whether you're adding hundreds of users or just one.Starting Price: $19.99/month/user -
16
8x8 Work
8x8
8x8 Work is a unified communications platform designed to connect teams and customers globally through voice, video, messaging, and AI-powered tools. It enhances productivity with features like enterprise-grade PBX, SMS, fax, and intelligent call routing, ensuring reliable communication from anywhere. The platform also supports AI-driven meeting transcriptions, summaries, and noise suppression to streamline collaboration and reduce manual work. With video conferencing, team chat, and file sharing, organizations can foster stronger collaboration and maintain workflow alignment across remote and hybrid teams. 8x8 integrates seamlessly with tools like Microsoft Teams, Google Workspace, Salesforce, and ServiceNow to provide a unified workflow experience. Built with enterprise-level security and compliance certifications such as HIPAA, ISO 27001, GDPR, and SOC 2, 8x8 ensures both scalability and trust for modern businesses. -
17
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. -
18
UNIVERGE BLUE
NEC Corporation
Tomorrow's Smart Workspace, Today! NEC UNIVERGE BLUE is a comprehensive Cloud Communications platform delivering leading-edge Messaging, Voice, Video, File Sharing, Chat, Contact Center, and Integrations all-in-one user-friendly platform. Wherever your business operates—the office, at home, on-site—it’s important that employees are equipped with the right tools to be productive and communicate with colleagues and clients from anywhere. Equally important is ensuring a safe, productive work environment for enhancing business communications and customers' experience. Businesses can bring employees and customers together on one of the most inclusive integrated business communications platforms and adopt digital workplace strategies to establish a smooth and secure flow of communications across their enterprise and maximize productivity, departmental efficiencies, and security.Starting Price: $19.40/User/Month -
19
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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