Microsoft Teams and Zoom Workplace are two of the most prominent solutions within the UCaaS space.
Yet, in recent years, both tech giants have made big moves to extend into CCaaS and are enjoying early success.
As this success builds, both brands will likely go further to unify their enterprise communications solutions.
Indeed, Zoom has brought Workplace and its Contact Center onto one unified platform, which includes conversational AI, workforce engagement management (WEM), and much more.
Meanwhile, Microsoft has extended Teams Phone across the Dynamics 365 Contact Center, so the solutions share a unified voice platform.
In pushing further into the CCaaS space with UCaaS-adjacent solutions, Microsoft and Zoom strive to disrupt the market.
However, they may also steal food off one another's plates.
Given this, let's see how they stack up on UCaaS and CCaaS.
Microsoft vs. Zoom: UCaaS Offerings
Zoom and Microsoft are leaders in the Gartner Magic Quadrant for Unified Communications as a Service (UCaaS).
Interestingly, while Microsoft Teams ranks slightly higher in the report, Zoom Workspace has a slightly better score on Gartner Peer Insights and G2, the verified customer review sites.
On both, Zoom scores 4.6 out of 5 stars compared to Microsoft’s 4.4 (as per June 2025).
Microsoft Teams has a larger install base, with over 320 million monthly active users.
Most organizations have stuck with the platform thanks to Microsoft’s familiar interface and alignment with Office 365.
Zoom Workplace, by contrast, is the up-and-coming challenger. After dominating pandemic-era video, Zoom needed a reinvention.
Recognizing this, Zoom launched Workplace in 2024, including persistent chat, whiteboards, collaborative documents, task apps, and a free AI assistant.
Microsoft Teams: Strengths and Cautions
One of the biggest benefits of Microsoft Teams is how deeply it’s integrated with the rest of the Microsoft ecosystem.
For companies already investing in Microsoft 365, Teams feels like home. Everything from Word docs to Outlook calendars lives inside the same pane of glass.
Teams is reliable, with 99.999 percent uptime guarantees, and it offers a range of PSTN connectivity options (with Direct Routing and Operator Connect).
Plus, Copilot is embedded into everything, ready to summarize meetings, draft replies, surface data from connected apps, and more.
Microsoft also offers businesses deep security and compliance features, alongside modular add-ons like the "Queues" app for smaller contact centers.
However, there are some downsides. The PSTN connectivity options can be confusing, particularly for small organizations.
Companies with advanced telephony needs, such as requirements for SMS or advanced call recording, often find themselves needing to rely on external integrations.
On its own, Teams also lacks the functionality to perform as a full contact center for SMBs. Plus, accessing advanced features can be expensive. For instance, Copilot costs $30 per user per month.
Zoom Workplace: Strengths and Cautions
Zoom Workplace excels in its ease of use, as evidenced by its best-in-class UI.
From the UI, meetings, chat, and collaboration feel like part of the same product, not bolted together. Plus, there are plenty of specialist options available for companies in specific industries.
Zoom also prioritizes customer support. The organization has a robust reputation for addressing problems quickly and efficiently.
Beyond that, Zoom’s AI innovation catches the eye. For example, its AI Companion can now do much more than summarize meetings. It can generate follow-ups and tasks, assign action items to team members, and translate content in real-time.
The company is even experimenting with a federated approach to AI, which allows its models to rank models by use case to maximize the performance of AI.
Still, Zoom lacks the enterprise suite depth offered by Microsoft. Although it has solutions for task management and online Docs, it doesn’t have broader options like the Power Platform or Microsoft Dynamics (though it does have its contact center suite).
While Zoom is now a leader in UCaaS, some larger enterprises question its long-term roadmap. Is it trying to replace Microsoft, or coexist with it?
Microsoft vs. Zoom: Which Is Best for UCaaS?
From a UCaaS perspective, both companies have a lot to offer.
For the most part, many companies will still choose Teams if they’re already deeply embedded in the Microsoft ecosystem, and they’re looking for intuitive ways to build workflows across systems like Teams, Power BI, and SharePoint.
Zoom is more likely to appeal to companies in search of a simpler, lightweight experience that works well out of the box and offers access to intuitive AI capabilities. It can also position itself as the leading alternative, which will appeal to Microsoft-averse buyers.
Microsoft vs. Zoom: The CCaaS Showdown
Zoom and Microsoft are relatively new to the CCaaS space, with the latter only entering the market in July 2024.
However, Microsoft wants to differentiate with its Copilot-first approach and embedded AI agents, with three already packaged as part of the Dynamics 365 Contact Center.