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Connect callers to a conference
This code snippet shows how to join multiple calls into a conversation.
Multiple inbound calls can be joined into a conversation (conference call) by connecting the call into the same named conference.
Conference names are scoped at the Vonage Application
level. For example, VonageApp1 and VonageApp2 could both have a
conference called vonage-conference
and there would be no problem.
Example
Replace the following variables in the example code:
Key | Description |
---|---|
CONF_NAME |
The named identifier for your conference |
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
npm install express body-parser
Create a file named conference-call.js
and add the following code:
const app = require('express')()
const bodyParser = require('body-parser')
app.use(bodyParser.json())
Write the code
Add the following to conference-call.js
:
const onInboundCall = (request, response) => {
const ncco = [
{
action: 'talk',
text: 'Please wait while we connect you to the conference'
},
{
action: 'conversation',
name: CONF_NAME
}
]
response.json(ncco)
}
app.get('/webhooks/answer', onInboundCall)
app.listen(3000)
Run your code
Save this file to your machine and run it:
node conference-call.js
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
Add the following to `build.gradle`:
compile 'com.vonage:client:5.5.0'
compile 'com.sparkjava:spark-core:2.7.2'
Write the code
Add the following to the main
method of the ConferenceCall
class:
/*
* Route to answer incoming calls with an NCCO response.
*/
Route answerRoute = (req, res) -> {
TalkAction intro = TalkAction.builder("Please wait while we connect you to the conference.").build();
ConversationAction conversation = ConversationAction.builder(CONF_NAME).build();
res.type("application/json");
return new Ncco(intro, conversation).toJson();
};
Spark.port(3000);
Spark.get("/webhooks/answer", answerRoute);
Spark.post("/webhooks/answer", answerRoute);
Run your code
We can use the application
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 ConferenceCall
:
gradle run -Pmain=com.vonage.quickstart.voice.ConferenceCall
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
Install-Package Vonage
Create a file named ConnectCallersToConferenceController.cs
and add the following code:
using Vonage.Voice.Nccos;
Write the code
Add the following to ConnectCallersToConferenceController.cs
:
[HttpGet("webhooks/answer")]
public string Answer()
{
var CONF_NAME = Environment.GetEnvironmentVariable("CONF_NAME") ?? "CONF_NAME";
var talkAction = new TalkAction() { Text = "Please wait while we connect you to the conference" };
var conversationAction = new ConversationAction() { Name = CONF_NAME };
var ncco = new Ncco(talkAction, conversationAction);
return ncco.ToString();
}
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
composer require vonage/client slim/slim:^3.8
Create a file named index.php
and add the following code:
use Laminas\Diactoros\Response\JsonResponse;
use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;
Add the following to index.php
:
require 'vendor/autoload.php';
$app = new \Slim\App;
Write the code
Add the following to index.php
:
$app->get('/webhooks/answer', function (Request $request, Response $response) {
$talk = new \Vonage\Voice\NCCO\Action\Talk('Hi, welcome to this Nexmo conference call');
$convo = new \Vonage\Voice\NCCO\Action\Conversation('nexmo-conference-standard');
$ncco = new \Vonage\Voice\NCCO\NCCO();
$ncco->addAction($talk);
$ncco->addAction($convo);
return new JsonResponse($ncco->toArray());
});
$app->run();
Run your code
Save this file to your machine and run it:
php -S localhost:3000 -t .
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
pip install 'flask>=1.0'
Create a file named connect-callers-to-a-conference.py
and add the following code:
from flask import Flask, jsonify
app = Flask(__name__)
Write the code
Add the following to connect-callers-to-a-conference.py
:
@app.route("/webhooks/answer")
def answer_call():
ncco = [
{
"action": "talk",
"text": "Please wait while we connect you to the conference"
},
{
"action": "conversation",
"name": CONF_NAME
}]
return jsonify(ncco)
if __name__ == '__main__':
app.run(port=3000)
Run your code
Save this file to your machine and run it:
python3 connect-callers-to-a-conference.py
Prerequisites
A Vonage application contains the required configuration for your project. You can create an application using the Nexmo CLI (see below) or via the dashboard. To learn more about applications see our Vonage concepts guide.
Install the CLI
npm install -g nexmo-cli
Create an application
Once you have the CLI installed you can use it to create a Vonage application. Run the following command and make a note of the application ID that it returns. This is the value to use in NEXMO_APPLICATION_ID
in the example below. It will also create private.key
in the current directory which you will need in the Initialize your dependencies step
Vonage needs to connect to your local machine to access your answer_url
. We recommend using ngrok to do this. Make sure to change demo.ngrok.io
in the examples below to your own ngrok URL.
nexmo app:create "Conference Call Example" http://demo.ngrok.io/webhooks/answer http://demo.ngrok.io/webhooks/events --keyfile private.key
gem install sinatra sinatra-contrib
Create a file named join_a_conference_call.rb
and add the following code:
require 'sinatra'
require 'sinatra/multi_route'
require 'json'
before do
content_type :json
end
Write the code
Add the following to join_a_conference_call.rb
:
route :get, :post, '/webhooks/answer' do
[
{
action: 'talk',
text: 'Welcome to a Vonage powered conference call'
},
{
action: 'conversation',
name: 'room-name'
}
].to_json
end
set :port, 3000
Run your code
Save this file to your machine and run it:
ruby join_a_conference_call.rb
Try it out
Start your server and make multiple inbound calls to the Vonage Number assigned to this Vonage Application. The inbound calls will be connected into the same conversation (conference).