call: unmute

Namespace: microsoft.graph

Allow the application to unmute itself.

This is a server unmute, meaning that the server will start sending audio packets for this participant to other participants again.

For more information about how to handle unmute operations, see unmuteParticipantOperation.

Note: This method is only supported for group calls.

Permissions

Permission type Permissions (from least to most privileged)
Delegated (work or school account) Not supported.
Delegated (personal Microsoft account) Not supported.
Application Calls.Initiate.All, Calls.AccessMedia.All

Note: Permissions are checked when the call is created; no additional permission check is made when calling this API. Calls.AccessMedia.All is only necessary for calls that use app-hosted media.

HTTP request

POST /communications/calls/{id}/unmute

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
clientContext String Unique Client Context string. Max limit is 256 chars.

Response

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

Note: When this API returns a successful response, all participants will receive a roster update.

Example

Request
POST https://graph.microsoft.com/v1.0/communications/calls/57dab8b1-894c-409a-b240-bd8beae78896/unmute
Content-Type: application/json
Content-Length: 46

{
  "clientContext": "clientContext-value"
}
Response

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

HTTP/1.1 200 OK
Location: https://graph.microsoft.com/v1.0/communications/calls/57dab8b1-894c-409a-b240-bd8beae78896/operations/17e3b46c-f61d-4f4d-9635-c626ef18e6ad
Content-Type: application/json
Content-Length: 259

{
  "@odata.type": "#microsoft.graph.unmuteParticipantOperation",
  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#unmuteParticipantOperation",
  "id": "17e3b46c-f61d-4f4d-9635-c626ef18e6ad",
  "status": "completed",
  "clientContext": "clientContext-value"
}
Notification - roster updated with participant unmuted
POST https://bot.contoso.com/api/calls
Content-Type: application/json

{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "updated",
      "resourceUrl": "/communications/calls/57dab8b1-894c-409a-b240-bd8beae78896/participants",
      "resourceData": [
        {
          "@odata.type": "#microsoft.graph.participant",
          "id": "2765eb15-01f8-47c6-b12b-c32111a4a86f",
          "info": {
            "identity": {
              "user": {
                "displayName": "Bob",
                "id": "5810cede-f3cc-42eb-b2c1-e9bd5d53ec96"
              }
            },
            "region": "westus",
            "languageId": "en-US"
          },
          "mediaStreams": [
            {
              "mediaType": "audio",
              "label": "main-audio",
              "sourceId": "1",
              "direction": "sendReceive"
            }
          ],
          "isMuted": false, // will be set to false on unmute
          "isInLobby": false
        }
      ]
    }
  ]
}