RTT can be disabled for all users in the organization by changing Teams meeting and calling policies. The RTT setting is On by default, so it must be explicitly turned Off.
To disable RTT in Teams meetings and group calls for the whole organization using the Teams admin center:
- Open the Teams admin center.
- In the left navigation, expand Meetings.
- Select Meeting policies.
- Either edit the Global (Org-wide default) policy or any custom policies assigned to users.
- In the Recording and transcription section, set Real-time-text (RTT) to Off.
- Select Save.
- Ensure this policy is assigned to all students/teachers so RTT is disabled for their meetings and group calls.
To disable RTT in 1:1 VoIP calls using the Teams admin center:
- In the Teams admin center, expand Voice.
- Select Calling policies.
- Edit the relevant calling policy (for example, the global policy used by your users).
- Toggle Real-time-text (RTT) to Off.
- Select Save.
To disable RTT via PowerShell for meetings and group calls:
Set-CsTeamsMeetingPolicy -Identity <policy name> -RealTimeText Disabled
Run this for each meeting policy that applies to your users (for example, the global policy) so RTT is disabled in their meetings and group calls.
To disable RTT via PowerShell for 1:1 VoIP calls:
Set-CsTeamsCallingPolicy -Identity <policy name> -RealTimeText Disabled
Run this for each calling policy assigned to users.
After policy changes, allow time for propagation (can take several hours). Once RTT is disabled in these policies, users in your organization will not be able to turn on RTT in Teams meetings, group calls, or 1:1 VoIP calls.
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