Microsoft Teams: Voicemail transcription service migration and new languages

Starting June 2026, Microsoft Teams voicemail transcription will migrate to Azure LLM Speech using the Fast Transcription API, improving accuracy, speed, and adding automatic language detection plus 14 new languages. The rollout completes by late July 2026 with no required user action or policy changes. What and Why Starting in June 2026, Microsoft Teams voicemail transcription will transition to Azure LLM Speech using the Fast Transcription API. This update improves transcription accuracy, processing speed, and reliability, while introducing automatic language detection and support for 14 additional languages. We expect new languages to be available for in all Azure regions by the end of July. This enhancement helps organizations better support multilingual users and increases the value of Microsoft 365 Copilot by enabling richer processing of voicemail content through transcripts. In the coming three months, M365 Copilot is also expected to recognize voicemail as a distinct message type, making it easier to identify and work with these messages. Rollout Schedule General Availability (Worldwide): We will begin rolling out in mid-June 2026 and expect to complete by late July 2026. Impact on Your Organization Who is affected Organizations using Microsoft Teams voicemail transcription All users with voicemail transcription enabled via policy Platforms/Services Microsoft Teams Exchange Online voicemail Microsoft 365 Copilot (indirectly enhanced) What will happen Voicemail transcription will migrate to Fast Transcription API Azure LLM Speech automatically. Automatic language detection will be enabled for voicemail messages. Transcription accuracy and processing speed will improve. Support for 14 additional languages will be added. New languages are enabled by default for tenants with transcription turned ON. Existing voicemail policies remain unchanged. No change to the secure and compliant voicemail experience. Language support Currently supported (9): English (en-US) Spanish (es-ES) Portuguese (pt-BR) French (fr-FR) German (de-DE) Italian (it-IT) Dutch (nl-NL) Chinese (zh-CN) Japanese (ja-JP) New languages (14): Arabic (ar-SA) Czech (cs-CZ) Danish (da-DK) Finnish (fi-FI) Hebrew (he-IL) Hindi (hi-IN) Hungarian (hu-HU) Korean (ko-KR) Norwegian Bokmål (nb-NO) Polish (pl-PL) Russian (ru-RU) Swedish (sv-SE) Thai (th-TH) Turkish (tr-TR) Action Required / Recommendations No action required.  We do not expect any issues during the transition of voicemail transcription to Fast Transcription […]

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