call: subscribeToTone

Namespace: microsoft.graph

Subscribe to DTMF (dual-tone multi-frequency signaling) which allows you to be notified when the user presses keys on a "dialpad".

Note

The subscribeToTone action is supported only for calls that are initiated with serviceHostedMediaConfig.

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.AccessMedia.All	Not available.

Note: Any tone data provided may not be persisted. 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.

HTTP request

POST /communications/calls/{id}/subscribeToTone

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
clientContext	String	Unique client context string. Can have a maximum of 256 characters.

Response

If successful, this method returns 200 OK response code.

Example

The following example shows how to call this API.

Request

The following example shows the request.

HTTP

POST https://graph.microsoft.com/v1.0/communications/calls/{id}/subscribeToTone
Content-Type: application/json
Content-Length: 46

{
  "clientContext": "fd1c7836-4d84-4e24-b6aa-23188688cc54"
}

C#

// Code snippets are only available for the latest version. Current version is 5.x

// Dependencies
using Microsoft.Graph.Communications.Calls.Item.SubscribeToTone;

var requestBody = new SubscribeToTonePostRequestBody
{
	ClientContext = "fd1c7836-4d84-4e24-b6aa-23188688cc54",
};

// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Communications.Calls["{call-id}"].SubscribeToTone.PostAsync(requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

CLI

// THE CLI IS IN PREVIEW. NON-PRODUCTION USE ONLY
mgc communications calls subscribe-to-tone post --call-id {call-id} --body '{\
  "clientContext": "fd1c7836-4d84-4e24-b6aa-23188688cc54"\
}\
'

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Go

import (
	  "context"
	  msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
	  graphcommunications "github.com/microsoftgraph/msgraph-sdk-go/communications"
	  //other-imports
)

graphClient := msgraphsdk.NewGraphServiceClientWithCredentials(cred, scopes)


requestBody := graphcommunications.NewSubscribeToTonePostRequestBody()
clientContext := "fd1c7836-4d84-4e24-b6aa-23188688cc54"
requestBody.SetClientContext(&clientContext) 

subscribeToTone, err := graphClient.Communications().Calls().ByCallId("call-id").SubscribeToTone().Post(context.Background(), requestBody, nil)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Java

GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider( authProvider ).buildClient();

String clientContext = "fd1c7836-4d84-4e24-b6aa-23188688cc54";

graphClient.communications().calls("{id}")
	.subscribeToTone(CallSubscribeToToneParameterSet
		.newBuilder()
		.withClientContext(clientContext)
		.build())
	.buildRequest()
	.post();

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

JavaScript

const options = {
	authProvider,
};

const client = Client.init(options);

const subscribeToToneOperation = {
  clientContext: 'fd1c7836-4d84-4e24-b6aa-23188688cc54'
};

await client.api('/communications/calls/{id}/subscribeToTone')
	.post(subscribeToToneOperation);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PHP

<?php

// THIS SNIPPET IS A PREVIEW VERSION OF THE SDK. NON-PRODUCTION USE ONLY
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);

$requestBody = new SubscribeToTonePostRequestBody();
$requestBody->setClientContext('fd1c7836-4d84-4e24-b6aa-23188688cc54');

$result = $graphServiceClient->communications()->calls()->byCallId('call-id')->subscribeToTone()->post($requestBody)->wait();

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PowerShell

Import-Module Microsoft.Graph.CloudCommunications

$params = @{
	clientContext = "fd1c7836-4d84-4e24-b6aa-23188688cc54"
}

Invoke-MgSubscribeCommunicationCallToTone -CallId $callId -BodyParameter $params

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Python

# THE PYTHON SDK IS IN PREVIEW. FOR NON-PRODUCTION USE ONLY

graph_client = GraphServiceClient(credentials, scopes)

request_body = SubscribeToTonePostRequestBody(
	client_context = "fd1c7836-4d84-4e24-b6aa-23188688cc54",
)

result = await graph_client.communications.calls.by_call_id('call-id').subscribe_to_tone.post(request_body)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Response

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

HTTP/1.1 200 OK
Content-Type: application/json
Location: https://graph.microsoft.com/v1.0/communications/calls/57dab8b1-894c-409a-b240-bd8beae78896/operations/0fe0623f-d628-42ed-b4bd-8ac290072cc5

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

Notification - tone notification

The notification contains information of the tone pressed in the toneinfo resource.

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",
      "resourceData": {
        "@odata.type": "#microsoft.graph.call",
        "state": "established",
        "toneInfo": {
          "@odata.type": "#microsoft.graph.toneInfo",
          "sequenceId": 1,
          "tone": "tone1"
        }
      }
    }
  ]
}