If you’ve been keeping an eye on the rise of VoIP marketing and the latest UCaaS trends, you’ve likely noticed that leading industry outlets for service providers, like Technology Reseller News and UC Today have been buzzing about Microsoft Teams integration this year.
And it’s no coincidence. Market research and industry reports all point to the same conclusion: integrating PBX with Microsoft Teams is emerging as one of the biggest growth opportunities for providers. It not only lets you tap into the ever-growing Microsoft Teams ecosystem but also aligns seamlessly with the broader market movement toward unified and frictionless communication experiences.
Opportunity Behind Teams’ Rise, What Users Are Really Asking For
Teams Adoption Has Created a Massive Integration Opportunity
Microsoft Teams adoption has surged since the pandemic and continues to grow with the shift to hybrid work. According to Metrigy’s 2025 Microsoft Teams in the Contact Center study (US & UK, 42 verticals):
- Nearly 62% of organizations already have access to Teams through their Microsoft 365 licenses.
- 71.8% plan to integrate their UC applications and contact center platforms to create a seamless, unified user experience across the business.
➡️ What this means: Teams already has a massive installed base. And the overwhelming majority of customers want it to function as their central communication hub across messaging, meetings, calling, and customer engagement.
(Primary Office Suite in Use — Source: Metrigy, “Bringing Calling and Contact Center to Microsoft Teams”)
But Teams Calling Adoption Remains Surprisingly Low
According to TechTarget citing Metrigy’s latest research:
- Only one-third of companies have deployed Teams Phone, and most still rely on a separate PSTN calling platform.
- In another study, only about 25% of organizations with voice enabled in Teams are doing so through an external phone system.
➡️What this really means
- Up to 75% of Teams users still require telephony beyond Teams itself
- At least 3 out of 4 companies with Teams today do not have proper PBX and Teams integration in place.
（Source: Metrigy, “Bringing Calling and Contact Center to Microsoft Teams”）
This fragmented setup leaves customers stuck and reactive
Because full integration between Teams and PBX platforms is still far from mainstream, many companies, especially SMBs, are left struggling with a disjointed communication experience, expensive costs, and unnecessary operational burden. The impact shows up everywhere:
- Disjointed workflows: Teams for meetings, a separate PBX for calls, and a CRM for customer data. The constant context switching hurts productivity.
- Higher calling costs: Microsoft Calling Plans are often too expensive for SMBs or multi-region deployments, forcing businesses to compromise on flexibility or spend more than they need to.
- Operational complexity: IT teams must manage users, numbers, permissions, and call flows in both Microsoft 365 and the external PBX, doubling effort and creating more room for errors.
- Technical barriers: Connecting PSTN to Teams typically requires Direct Routing, SBCs, certificates, carrier interop, and ongoing monitoring. Most SMBs simply don’t have that expertise in-house.
A Strategic Moment for Service Provider Differentiation
With so many businesses stuck in fragmented setups, the opportunity for ITSPs, MSPs, and voice resellers is clear: whoever can seamlessly combine Teams collaboration with enterprise-grade telephony will immediately address the industry’s most persistent pain points:
- No more platform hopping between Teams, PBX, and CRM
- Lower calling costs without relying on expensive Microsoft Calling Plans
- Centralized management instead of maintaining two separate environments
➡️ For SMBs especially, a fully integrated Teams telephony solution is not just attractive, it’s transformative.
How Service Providers Can Stand Out in the Teams + PBX Integration Market
As demand for Teams and telephony integration accelerates, one thing is clear: customers are no longer satisfied with “it works.” They expect solutions that work intuitively, seamlessly, and everywhere.
From our VoIP experience supporting over 650,000 customers worldwide, it’s evident that the most successful solutions aren’t just about connectivity, but they’re designed around user experience, simplicity, and reliability.
Based on our extensive hands-on integration experience, and collective insights from industry experts, we believe there are 5+1 key considerations that any successful PBX and Teams integration solution must address, insights that define the new standard for differentiation in the market.
- Native experience
The most important aspect of any integration is basic usability. Teams users should be able to dial and receive calls, whether using Microsoft Teams PBX or any external PBX, with the same ease as a desk phone or even simpler. - Seamless Notifications
A native integration ensures that incoming calls show up instantly in the Teams activity, so users never miss important calls while working across chats, meetings, or files. - PBX Tools
If you integrate a softphone into Teams, it’s because users want to work within Teams while still having quick access to the buttons and controls they normally use. - Presence Status
Real-time presence syncing between Teams and calling systems keeps users’ workflow smooth. - Customization
A well-integrated solution adapts to Teams while allowing branding or portal tweaks, keeping the experience consistent and smooth for users.
⭐Beyond seamless user experience, usage-based calling and subscription billing offer service providers a real differentiator. Unlike traditional Teams Calling licenses, it’s more transparent and intuitive, customers pay for what they actually use, saving costs and simplifying budget management.
Native Microsoft Teams Integrated Phone System
Few phone systems on the market truly offer native integration with Microsoft Teams, but Yeastar P-Series Phone System integration solution is native one. It delivers enterprise-grade calling directly within Teams, without requiring a Teams Phone license, while maintaining a unified number for all calls.
Whether you integrate directly with Teams or via Call2Teams, the Linkus UC Clients embeds directly within Teams to deliver a seamless calling experience:
- Click-to-call contacts using a familiar or embedded dialpad
- Receive call pop-ups at the right time, ensuring no call is missed
- Access advanced professional calling features such as IVR, call routing, and call queues
- View and manage call recordings directly within Teams
Beyond calling, the P-Series PBX supports Microsoft Entra ID integration (Azure Active Directory) for automatic user synchronization and customizable presence, keeping workflows smooth and uninterrupted.
Unlike general UC solutions, Yeastar focuses on professional calling capabilities, making it ideal for businesses handling front desk operations, back-office support, or even full-fledged contact centers.
👉Request a live demo to see P-Series PBX and Teams integration in action, or leave a message below to discover the ideal calling solution for your organization.
