アウトバウンドコールをかける

このコード・スニペットは、アウトバウンドコールを発信し、通話に応答すると音声合成メッセージを再生します。音声合成メッセージを再生します。

例

サンプルコードの以下の変数を置き換える：

キー	説明
`VONAGE_VIRTUAL_NUMBER`	Your Vonage Number. E.g. `447700900000`
`VOICE_TO_NUMBER`	The recipient number to call, e.g. `447700900002`.
`VOICE_ANSWER_URL`	The answer URL. For example `https://raw.githubusercontent.com/nexmo-community/ncco-examples/gh-pages/text-to-speech.json`.

Prerequisites

Execute the following command at your terminal prompt to create the JWT for authentication:

export JWT=$(nexmo jwt:generate $PATH_TO_PRIVATE_KEY application_id=$NEXMO_APPLICATION_ID)

Write the code

Add the following to make-an-outbound-call.sh:

curl -X POST https://api.nexmo.com/v1/calls\
  -H "Authorization: Bearer $JWT"\
  -H "Content-Type: application/json"\
  -d '{"to":[{"type": "phone","number": "'$VOICE_TO_NUMBER'"}],
      "from": {"type": "phone","number": "'$VONAGE_VIRTUAL_NUMBER'"},
      "answer_url":["'"$VOICE_ANSWER_URL"'"]}'

View full source

Run your code

Save this file to your machine and run it:

bash make-an-outbound-call.sh

Prerequisites

npm install @vonage/server-sdk

Create a file named make-an-outbound-call.js and add the following code:

const { Vonage } = require('@vonage/server-sdk');

const vonage = new Vonage({
  applicationId: VONAGE_APPLICATION_ID,
  privateKey: VONAGE_PRIVATE_KEY,
});

View full source

Write the code

Add the following to make-an-outbound-call.js:

vonage.voice.createOutboundCall({
  to: [
    {
      type: 'phone',
      number: VOICE_TO_NUMBER,
    },
  ],
  from: {
    type: 'phone',
    number: VONAGE_VIRTUAL_NUMBER,
  },
  answer_url: [VOICE_ANSWER_URL],
})
  .then((resp) => console.log(resp))
  .catch((error) => console.error(error));

View full source

Run your code

Save this file to your machine and run it:

node make-an-outbound-call.js

Prerequisites

Add the following to build.gradle:

implementation 'com.vonage:server-sdk-kotlin:2.1.1'

Create a class named OutboundTextToSpeechCall and add the following code to the main method:

val client = Vonage {
    applicationId(VONAGE_APPLICATION_ID)
    privateKeyPath(VONAGE_PRIVATE_KEY_PATH)
}

View full source

Write the code

Add the following to the main method of the OutboundTextToSpeechCall class:

val callEvent = client.voice.createCall {
    toPstn(VOICE_TO_NUMBER)
    from(VONAGE_VIRTUAL_NUMBER)
    answerUrl(VOICE_ANSWER_URL)
}

View full source

Run your code

We can use the アプリケーション plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

apply plugin: 'application'
mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.vonage.quickstart.kt.voice with the package containing OutboundTextToSpeechCall:

gradle run -Pmain=com.vonage.quickstart.kt.voice.OutboundTextToSpeechCall

Prerequisites

Add the following to build.gradle:

implementation 'com.vonage:server-sdk:9.3.1'

Create a class named OutboundTextToSpeech and add the following code to the main method:

VonageClient client = VonageClient.builder()
        .applicationId(VONAGE_APPLICATION_ID)
        .privateKeyPath(VONAGE_PRIVATE_KEY_PATH)
        .build();

View full source

Write the code

Add the following to the main method of the OutboundTextToSpeech class:

client.getVoiceClient().createCall(new Call(VOICE_TO_NUMBER, VONAGE_VIRTUAL_NUMBER, VOICE_ANSWER_URL));

View full source

Run your code

We can use the アプリケーション plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

apply plugin: 'application'
mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.vonage.quickstart.voice with the package containing OutboundTextToSpeech:

gradle run -Pmain=com.vonage.quickstart.voice.OutboundTextToSpeech

Prerequisites

Install-Package Vonage

Write the code

Add the following to MakeOutboundCall.cs:

var creds = Credentials.FromAppIdAndPrivateKeyPath(VONAGE_APPLICATION_ID, VONAGE_PRIVATE_KEY_PATH);
var client = new VonageClient(creds);

var answerUrl = "https://nexmo-community.github.io/ncco-examples/text-to-speech.json";
var toEndpoint = new PhoneEndpoint() { Number = VOICE_TO_NUMBER };
var fromEndpoint = new PhoneEndpoint() { Number = VONAGE_VIRTUAL_NUMBER };

var command = new CallCommand() { To = new Endpoint[] { toEndpoint }, From = fromEndpoint, AnswerUrl = new[] { answerUrl } };
var response = await client.VoiceClient.CreateCallAsync(command);

View full source

Prerequisites

composer require vonage/client

Write the code

Add the following to text-to-speech-outbound.php:

View full source

Run your code

Save this file to your machine and run it:

php text-to-speech-outbound.php

Prerequisites

pip install vonage python-dotenv

Write the code

Add the following to make-an-outbound-call.py:

from vonage import Auth, Vonage
from vonage_voice import CreateCallRequest, Phone, ToPhone

client = Vonage(
    Auth(
        application_id=VONAGE_APPLICATION_ID,
        private_key=VONAGE_PRIVATE_KEY,
    )
)

response = client.voice.create_call(
    CreateCallRequest(
        answer_url=[VOICE_ANSWER_URL],
        to=[ToPhone(number=VOICE_TO_NUMBER)],
        from_=Phone(number=VONAGE_VIRTUAL_NUMBER),
    )
)

pprint(response)

View full source

Run your code

Save this file to your machine and run it:

python voice/make-an-outbound-call.py

Prerequisites

gem install vonage

Write the code

Add the following to outbound_tts_call.rb:

View full source

Run your code

Save this file to your machine and run it:

ruby outbound_tts_call.rb

試してみる

コードを実行すると TO_NUMBER が呼び出され、通話に応答すると音声合成メッセージが流れます。

さらに読む

音声通知 - このガイドでは、電話でリストに連絡し、メッセージを伝え、誰がメッセージを受け取ったかを確認する方法を学びます。このような音声ベースのクリティカルアラートは、テキストメッセージよりも持続性があるため、あなたのメッセージに気づいてもらえる可能性が高くなります。さらに、受信者の確認により、メッセージが届いたことを確認することができます。
電話会議 - このガイドでは、Vonageが通話に関連付ける2つの概念、レグと会話について説明します。
Googleダイアログフローによる音声ボット - このガイドでは、Vonage Voice APIを使用したDialogflowボットのサンプルコードを使って、Dialogflowボットと対話する方法を説明します。