participant: muteAll

Namespace: microsoft.graph


APIs under the /beta version in Microsoft Graph are subject to change. Use of these APIs in production applications is not supported. To determine whether an API is available in v1.0, use the Version selector.

Mute all participants in the call.

Note: This API is deprecated and will be removed by March 15th, 2020. To mute a single participant, see participant: mute.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type Permissions (from least to most privileged)
Delegated (work or school account) Not Supported
Delegated (personal Microsoft account) Not Supported
Application Calls.JoinGroupCallsasGuest.All or Calls.JoinGroupCalls.All

HTTP request

POST /app/calls/{id}/participants/muteAll
POST /communications/calls/{id}/participants/muteAll

Note: The /app path is deprecated. Going forward, use the /communications path.

Request headers

Name Description
Authorization Bearer {token}. Required.
Content-type application/json. Required.

Request body

In the request body, provide a JSON object with the following parameters.

Parameter Type Description
participants String collection The participants to be muted.
clientContext String The client context.


If successful, this method returns a 200 OK response code and a commsOperation object in the response body.


The following example shows how to call this API.


The following example shows the request.

Content-Type: application/json
Content-Length: 81

  "participants": [
  "clientContext": "clientContext-value"

Note: The response object shown here might be shortened for readability.

HTTP/1.1 200 OK

  "@odata.type": "#microsoft.graph.commsOperation",
  "clientContext": "clientContext-value",
  "id": "0fe0623f-d628-42ed-b4bd-8ac290072cc5",
  "resultInfo": null,
  "status": "completed"