MC1135397: Noise suppression for dial-in participants in Teams audio conferences
Microsoft Teams will introduce automatic noise suppression for PSTN dial-in participants starting September 2025, improving audio clarity by reducing background noise. The feature is enabled by default, requires no admin action for rollout, but admins can enable it early via policy or PowerShell....
Introduction
Microsoft Teams is introducing noise suppression for PSTN dial-in participants in Audio Conferences. This feature automatically reduces background noise—such as traffic or keyboard sounds—enhancing audio clarity for users joining meetings via phone.
This message is associated with Microsoft 365 Roadmap ID 496150
When this will happen
- Targeted Release (Worldwide): Rollout begins in September 2025 and is expected to complete by late October 2025.
- General Availability (Worldwide, GCC, GCC High, and DoD): Rollout begins late September 2025 and is expected to complete by late November 2025.
How this will affect your organization
Once enabled, noise suppression will automatically improve audio quality for PSTN dial-in participants by reducing background distractions. This enhancement supports clearer communication and a more professional meeting experience. The feature will be on by default after rollout.
What you need to do to prepare
No admin action is required for rollout.
- For early testing, admins can manually enable the feature starting September 22, 2025:
- Go to Meeting policy
- Navigate to the Audio & video section
- Set Noise suppression for dial-in participants to Enabled
- Or use PowerShell:
- Set the
NoiseSuppressionForDialInParticipantsproperty inCsTeamsMeetingPolicytoEnabled
- Set the
Compliance concerns
| Compliance Area | Explanation |
|---|---|
| Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data? | Noise suppression uses machine learning model to process audio input and reduce background noise. |
| Does the change include an admin control and, can it be controlled through Entra ID group membership? | Admins can enable or disable the feature via Teams Admin Center or PowerShell. Yes, it can be assigned to individual users and groups. |
| Does the change allow a user to enable and disable the feature themselves? | Only Admins can configure policies that affect user experience. Neither dial-in participant nor Teams participants can't control this setting for dial-in user. |