call: recordResponse

Namespace: microsoft.graph

Records a short audio response from the caller. A bot can utilize this to capture a voice response from a caller after they are prompted for a response.

For further information on how to handle operations, please review commsOperation

Note: This is only supported for calls which are initiated with serviceHostedMediaConfig.

This action is not intended to record the entire call. The maximum length of recording is 2 minutes. The recording is not saved permanently by the Cloud Communications Platform and is discarded shortly after the call ends. The bot must download the recording promptly after the recording operation finishes by using the recordingLocation value that's given in the completed notification.

Note: Any media collected may not be persisted. Make sure you are compliant with the laws and regulations of your area when it comes to call recording. Please consult with a legal counsel for more information.


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.AccessMedia.All

HTTP request

POST /communications/calls/{id}/recordResponse

Request headers

Name Description
Authorization Bearer {token}. Required.

Request body

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

Parameter Type Description
prompts mediaPrompt collection The prompts to be played. The maximum supported mediaPrompt collection size is 1.
bargeInAllowed Boolean If true, the recordResponse request will barge into other existing queued-up/currently-processing record/playprompt requests. Default = false.
initialSilenceTimeoutInSeconds Int32 Maximum initial silence (user silence) allowed from the time we start the record response operation before we timeout and fail the operation. If we are playing a prompt, then this timer starts after prompt finishes. Default = 5 seconds, Min = 1 second, Max = 120 seconds
maxSilenceTimeoutInSeconds Int32 Maximum silence (pause) time allowed after a user has started speaking. Default = 5 seconds, Min = 1 second, Max = 120 seconds.
maxRecordDurationInSeconds Int32 Max duration for the recordResponse operation before stopping recording. Default = 5 seconds, Min = 1 second, Max = 120 seconds.
playBeep Boolean If true, plays a beep to indicate to the user that they can start recording their message. Default = true.
stopTones String collection Stop tones specified to end recording.
clientContext String Unique Client Context string. Max limit is 256 chars.


This method returns a 200 OK response code and a Location header with a URI to the recordOperation created for this request.


The following example shows how to call this API.

Example 1: Records a short audio response from the caller


The following example shows the request.

Content-Type: application/json
Content-Length: 394

  "bargeInAllowed": true,
  "clientContext": "d45324c1-fcb5-430a-902c-f20af696537c",
  "prompts": [
      "@odata.type": "#microsoft.graph.mediaPrompt",
      "mediaInfo": {
        "uri": "",
        "resourceId": "1D6DE2D4-CD51-4309-8DAA-70768651088E"
  "maxRecordDurationInSeconds": 10,
  "initialSilenceTimeoutInSeconds": 5,
  "maxSilenceTimeoutInSeconds": 2,
  "playBeep": true,
  "stopTones": [ "#", "1", "*" ]

The following example shows the response.

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

HTTP/1.1 200 OK
Content-Type: application/json

  "@odata.type": "#microsoft.graph.recordOperation",
  "id": "0fe0623f-d628-42ed-b4bd-8ac290072cc5",
  "status": "running",
  "resultInfo": null,
  "recordingLocation": null,
  "clientContext": "d45324c1-fcb5-430a-902c-f20af696537c"
Notification - operation completed
Content-Type: application/json
  "@odata.type": "#microsoft.graph.commsNotifications",
  "value": [
      "@odata.type": "#microsoft.graph.commsNotification",
      "changeType": "deleted",
      "resourceUrl": "/communications/calls/57DAB8B1894C409AB240BD8BEAE78896/operations/0FE0623FD62842EDB4BD8AC290072CC5",
      "resourceData": {
        "@odata.type": "#microsoft.graph.recordOperation",
        "": "/communications/calls/57DAB8B1894C409AB240BD8BEAE78896/operations/0FE0623FD62842EDB4BD8AC290072CC5",
        "@odata.etag": "W/\"54451\"",
        "id": "0fe0623f-d628-42ed-b4bd-8ac290072cc5",
        "clientContext": "d45324c1-fcb5-430a-902c-f20af696537c",
        "status": "completed",
        "resultInfo": {
          "@odata.type": "#microsoft.graph.resultInfo",
          "code": 200,
          "subcode": 8515,
          "message": "Action completed, max record duration reached."
        "recordingLocation": "https://file.location/17e3b46c-f61d-4f4d-9635-c626ef18e6ad",
        "recordingAccessToken": "<access-token>"

Example 2: Retrieving the recording file

Note: You may NOT record or otherwise persist media content from calls or meetings that your application accesses, or data derived from that media content. Make sure you are compliant with the laws and regulations of your area regarding data protection and confidentiality of communications. Please see the Terms of Use and consult with your legal counsel for more information.

GET https://file.location/17e3b46c-f61d-4f4d-9635-c626ef18e6ad
Authorization: Bearer <recordingAccessToken>
HTTP/1.1 200 OK
Transfer-Encoding: chunked
Date: Thu, 17 Jan 2019 01:46:37 GMT
Content-Type: application/octet-stream

(application/octet-stream of size 160696 bytes)