Microsoft Teams Call Quality Monitoring with Zscaler ZDX

Why Call Quality Monitoring Matters for Microsoft Teams

By 2030, over 75% of organizations will rely on UCaaS platforms for their calling, meeting, and messaging needs (source: Metrigy). As Microsoft Teams becomes the backbone of workplace communication, ensuring high-quality voice and video performance is crucial. This is where Microsoft Teams Call Quality Monitoring comes into play—helping IT teams detect, diagnose, and resolve performance issues proactively.

End-to-End Monitoring with Zscaler ZDX

Zscaler Digital Experience (ZDX) offers a powerful integration with Microsoft Teams to provide real-time visibility into call quality across devices, networks, and applications. By combining existing telemetry with Teams-specific metrics, ZDX creates an end-to-end view of the user experience during Teams calls.

The Call Quality Dashboard in ZDX shows detailed meeting insights including:

• Meeting participants and device health

• Call duration and user locations (IP addresses)

• ZDX Score and MOS Score per session

These metrics give IT admins a fast and comprehensive view of the Teams call experience across their environment.

Understanding ZDX and MOS Scores

• ZDX Score represents the overall health of a Teams meeting, factoring in network performance, device issues, and Teams service stability. Metrics like latency, jitter, and packet loss influence the score directly.

• MOS (Mean Opinion Score) rates the perceived quality of a call on a scale from 1 (poor) to 5 (excellent). It’s calculated using the same network variables and helps IT teams identify when and where call degradation is happening.

By correlating both scores, ZDX enables accurate call quality monitoring and trend analysis over time.

Dive Deeper: Call Diagnostics for Microsoft Teams

Within each Teams meeting, ZDX provides granular diagnostics including:

• Audio, video, and screen sharing quality scores

• Device resource usage (CPU, memory, disk I/O)

• Software versions and update history of Teams clients

For example, if a user reports choppy audio, ZDX highlights packet loss or jitter and identifies whether the issue lies between the user’s device and the Zscaler node or further along the cloud path.

Advanced Network Visibility: Cloud Path and Hop View

To support deep troubleshooting, ZDX includes:

• Cloud Path Analysis: Visualizes the end-to-end data path from the user device to Microsoft Teams, pinpointing delays or failures.

• Hop View: Breaks down each network segment to help IT understand where interruptions occur—essential for real-time Teams troubleshooting.

• Device Health: Collects events like CPU Usage, Memory and Disk utilization. Shows spikes during previous calls and the underlying process which is contributing to the spikes.

Monitoring Trends at the Organizational Level

With ZDX, IT teams can:

• Monitor Teams version adoption across the organization

• Detect whether call issues started after a client update

• Compare individual user performance to organizational benchmarks

These insights allow proactive support and help maintain consistent Teams performance.

Best Practices for Microsoft Teams Call Quality Monitoring

To ensure superior performance and minimize disruptions, follow these best practices:

1. Update Teams and Network Drivers Regularly

2. Enable QoS for Teams Traffic

3. Leverage Monitoring Tools like Zscaler ZDX

4. Educate Users on Good Practices (e.g., avoid streaming during calls)

Conclusion: Delivering High-Quality Teams Experiences with ZDX

In modern digital workplaces, Microsoft Teams Call Quality Monitoring is non-negotiable. With Zscaler ZDX, IT teams get unmatched visibility into user experience—from device and software to network and cloud routing.

By identifying issues early and resolving them fast, ZDX empowers organizations to offer stable, secure, and high-performing Microsoft Teams communication.

For enterprises seeking reliable UCaaS performance, integrating Zscaler ZDX with Microsoft Teams is a strategic advantage.