Microsoft is actively probing a glitch in its Teams platform that’s disrupting text-to-speech features, leaving users frustrated during critical auto-attendant calls.
The company confirmed the problem via its official Microsoft 365 Status account on X (formerly Twitter) on October 27, 2025, urging administrators to check incident TM1180557 in the admin center for updates.
This outage highlights ongoing challenges in Microsoft’s cloud-based communication tools, which millions rely on for business operations.
The issue specifically affects text-to-speech conversion in auto-attendant scenarios, where Teams is configured to handle incoming calls with automated voice responses.
Users report that the functionality fails to process scripted messages, resulting in silent or incomplete greetings that derail customer service flows and internal communications.
Early complaints surfaced on forums like Reddit and Microsoft’s community boards, with some organizations noting disruptions since early Monday.
For enterprises using Teams as a primary VoIP solution, this means potential lost productivity and strained client interactions, especially in high-volume call centers.
Microsoft’s status update indicates the investigation is underway, but no estimated resolution time has been provided. The glitch appears isolated to text-to-speech during auto-attendant use and does not impact core calling or video features.
Still, it underscores vulnerabilities in AI-driven voice tech, which has become integral to hybrid work environments post-pandemic. This incident arrives amid Microsoft’s push to enhance Teams with advanced AI integrations, including Copilot for voice assistance.
Analysts suggest the bug could stem from recent updates to the platform’s speech synthesis engine, possibly tied to compatibility issues with certain server configurations.
Microsoft advises affected users to monitor the admin center and consider temporary workarounds, such as fallback to manual attendant scripts.
As the probe continues, businesses are bracing for prolonged effects, with hopes for a swift patch to restore seamless operations.
Update – Microsoft confirms the issue is fixed and the functionality is operational now.
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