call: transfer

Namespace: microsoft.graph

Important

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.

Transfer an active peer-to-peer call or group call.

Note: This is only supported if both the transferee and transfer target are Microsoft Teams users that belong to the same tenant. Transfer to PSTN number is supported only for application instance. To learn more about transferor, transferee and transfer target, see RFC 5589.

A consultative transfer means that the transferor can inform the person they want to transfer the call to (the transferee), before the transfer is made. This is opposed to transfering the call directly.

This API is available in the following national cloud deployments.

Global service US Government L4 US Government L5 (DOD) China operated by 21Vianet

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

Permission type Least privileged permissions Higher privileged permissions
Delegated (work or school account) Not supported. Not supported.
Delegated (personal Microsoft account) Not supported. Not supported.
Application Calls.Initiate.All Not available.

HTTP request

POST /app/calls/{id}/transfer
POST /communications/calls/{id}/transfer

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

Request headers

Name Description
Authorization Bearer {token}. Required. Learn more about authentication and authorization.
Content-type application/json. Required.

Request body

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

Parameter Type Description
transferTarget invitationParticipantInfo The participant which is the target of the transfer.
transferee participantInfo The participant which is the transferee of the transfer. It is only needed when transfer from a group call.

Response

If successful, this method returns a 202 Accepted response code.

Examples

These examples show the flow of an incoming call all the way to the different types of transfer notifications.

Example 1: Call transfer from a peer-to-peer call

Request

The following example shows the request.

POST https://graph.microsoft.com/beta/communications/calls/{id}/transfer
Content-Type: application/json
Content-Length: 430

{
  "transferTarget": {
    "endpointType": "default",
    "identity": {
      "user": {
        "id": "550fae72-d251-43ec-868c-373732c2704f",
        "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
        "displayName": "Heidi Steen"
      }
    },
    "languageId": "languageId-value",
    "region": "region-value"
  }
}

Response

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

HTTP/1.1 202 Accepted

Notification - transferring

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferring"
      }
    }
  ]
}

Notification - transfer accepted

Note: Transfer accepted may happen after or before media state audio inactive.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferAccepted"
      }
    }
  ]
}

Notification - transfer completed

POST https://bot.contoso.com/api/calls
Content-Type: application/json
{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "terminated",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 0,
          "subcode": 7015,
          "message": "GracefulTransferCompleted"
        }
      }
    }
  ]
}

Notification - transfer failed

Note: When a call transfer fails, the call state will be established.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 500,
          "subCode": 7000,
          "message": "<message>"
        }
      }
    }
  ]
}

Example 2: Consultative transfer from a peer-to-peer call

Request

The following example shows the request.

POST https://graph.microsoft.com/beta/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b/transfer
Content-Type: application/json

{
  "transferTarget": {
    "@odata.type": "#microsoft.graph.invitationParticipantInfo",
    "endpointType": "default",
    "identity": {
      "@odata.type": "#microsoft.graph.identitySet",
      "user": {
        "@odata.type": "#microsoft.graph.identity",
        "id": "550fae72-d251-43ec-868c-373732c2704f",
        "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
        "displayName": "Heidi Steen"
      }
    },
    "languageId": "en-us",
    "region": "amer",
    "replacesCallId": "e5d39592-99bd-4db8-bca8-30fb894ec51d"
  }
}

Response

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

HTTP/1.1 202 Accepted

Notification - transferring

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferring"
      }
    }
  ]
}

Notification - transfer accepted

Note: Transfer accepted may happen after or before media state audio inactive.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferAccepted"
      }
    }
  ]
}

Notification - transfer completed

POST https://bot.contoso.com/api/calls
Content-Type: application/json
{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "terminated",
        "terminationReason": "AppTransferred"
      }
    }
  ]
}

Notification - transfer failed

Note: When a call transfer fails, the call state will be established.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 500,
          "subCode": 7700,
          "message": "<message>"
        },
        "replacesContext": "<replacesContext>"
      }
    }
  ]
}

Example 3: Call transfer from a peer-to-peer call to PSTN number

This call requires an application instance with a PSTN number assigned. For details, see Assign a phone number to your bot.

Note: Phone ID is the phone number in E.164 format.

Request

The following example shows the request.

POST https://graph.microsoft.com/beta/communications/calls/{id}/transfer
Content-Type: application/json
Content-Length: 430

{
  "transferTarget": {
    "endpointType": "default",
    "identity": {
        "phone": {
          "@odata.type": "#microsoft.graph.identity",
          "id": "+12345678901"
        }
    },
    "languageId": "languageId-value",
    "region": "region-value"
  }
}

Response

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

HTTP/1.1 202 Accepted

Notification - transferring

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferring"
      }
    }
  ]
}

Notification - transfer accepted

Note: Transfer accepted may happen after or before media state audio inactive.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferAccepted"
      }
    }
  ]
}

Notification - transfer completed

POST https://bot.contoso.com/api/calls
Content-Type: application/json
{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "terminated",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 0,
          "subcode": 7015,
          "message": "GracefulTransferCompleted"
        }
      }
    }
  ]
}

Notification - transfer failed

Note: When a call transfer fails, the call state will be established.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 500,
          "subCode": 7000,
          "message": "<message>"
        }
      }
    }
  ]
}

Example 4: Consultative transfer from a peer-to-peer call to PSTN number

This call requires an application instance with a PSTN number assigned. For details, see Assign a phone number to your bot.

Note: Phone ID is the phone number in E.164 format.

Request

The following example shows the request.

POST https://graph.microsoft.com/beta/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b/transfer
Content-Type: application/json

{
  "transferTarget": {
    "@odata.type": "#microsoft.graph.invitationParticipantInfo",
    "endpointType": "default",
    "identity": {
      "@odata.type": "#microsoft.graph.identitySet",
        "phone": {
          "@odata.type": "#microsoft.graph.identity",
          "id": "+12345678901"
        }
    },
    "languageId": "en-us",
    "region": "amer",
    "replacesCallId": "e5d39592-99bd-4db8-bca8-30fb894ec51d"
  }
}

Response

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

HTTP/1.1 202 Accepted

Notification - transferring

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferring"
      }
    }
  ]
}

Notification - transfer accepted

Note: Transfer accepted may happen after or before media state audio inactive.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferAccepted"
      }
    }
  ]
}

Notification - transfer completed

POST https://bot.contoso.com/api/calls
Content-Type: application/json
{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "terminated",
        "terminationReason": "AppTransferred"
      }
    }
  ]
}

Notification - transfer failed

Note: When a call transfer fails, the call state will be established.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 500,
          "subCode": 7700,
          "message": "<message>"
        }
      }
    }
  ]
}

Example 5: Call transfer from a group call

Note: To transfer from a group call, the transferee parameter is required. All other parameters are the same as those for a transfer from a peer-to-peer call. A consultative transfer from a group call or a transfer to PSTN from a group call are similar to examples 1-4, with the transferee parameter specified.

Request

The following example shows the request.

POST https://graph.microsoft.com/beta/communications/calls/{id}/transfer
Content-Type: application/json
Content-Length: 430

{
  "transferTarget": {
    "endpointType": "default",
    "identity": {
      "user": {
        "id": "550fae72-d251-43ec-868c-373732c2704f",
        "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
        "displayName": "Heidi Steen"
      }
    },
  },
  "transferee": {
    "identity": {
      "user": {
        "id": "751f6800-3180-414d-bd94-333364659951",
        "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47"
      }
    },
    "participantId": "909c6581-5130-43e9-88f3-fcb3582cde37"
  },
  "languageId": "languageId-value",
  "region": "region-value"
}

Response

HTTP/1.1 202 Accepted

Notification - transferring

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferring"
      }
    }
  ]
}

Notification - transfer accepted

Note: Transfer accepted may happen after or before media state audio inactive.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "transferAccepted"
      }
    }
  ]
}

Notification - transfer completed

POST https://bot.contoso.com/api/calls
Content-Type: application/json
{
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
    {
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "terminated",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 0,
          "subcode": 7015,
          "message": "GracefulTransferCompleted"
        }
      }
    }
  ]
}

Notification - transfer failed

Note: When a call transfer fails, the call state will be established.

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/341a0500-d4bf-4224-8b19-1581168d328b",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 500,
          "subCode": 7000,
          "message": "<message>"
        }
      }
    }
  ]
}