PINless Conference Calls

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Node.js development environment and a web server and safely expose that server to the internet.

Create an Express server to implement a conference call

Create a file called conference_call.js and paste into it this code.

var express = require('express')
var app = express()

app.post('/conference_call/', function(req, res) {
    var plivo = require('plivo');
    var response = plivo.Response();
    
    var speak_body = "You will now be placed into the demo conference";
    response.addSpeak(speak_body);
    
    var params = {
        'startConferenceOnEnter': "true",
        'endConferenceOnExit': "true"
    };
    var conference_name = "demo";
    response.addConference(conference_name, params);
    res.send(response.toXML());
})

app.set('port', (process.env.PORT || 5000));
app.listen(app.get('port'), function() {
    console.log('Node app is running on port', app.get('port'));
});

Save the file and run it.

$ node conference_call.js

You should see your basic server application in action at http://localhost:3000/conference_call/.

Create a Plivo application for the conference call

Associate the Node.js application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Ruby development environment and a web server and safely expose that server to the internet.

Create a Rails controller to implement a conference call

Change to the project directory and run this command to create a Rails controller for inbound calls.

$ rails generate controller Plivo voice

This will generate a controller named plivo_controller in the app/controllers/ directory and a view in app/views/plivo. We can delete the view as we don’t need it.

$ rm app/views/plivo/voice.html.erb

Edit app/controllers/plivo_controller.rb and paste this code into the PlivoController class:

def conference
  response = Response.new
  
  speak_body = 'You will now be placed into the demo conference'
  response.addSpeak(speak_body)
  
  params = {
    'startConferenceOnEnter' => "false",
    'waitSound' => "https://<yourdomain>.com/waitmusic/"
  }

  conference_name = "demo"
  response.addConference(conference_name, params)

  xml = PlivoXML.new(response)
  puts xml.to_xml
  render xml: xml.to_xml
 end

Add a route

Add a route for the inbound function in the PlivoController class. Edit config/routes.rb and add the line below after the inbound route:

get 'plivo/conference'

Now plivo_controller is ready to forward incoming calls to your Plivo number. To start the Rails server, run

$ rails server

You should see your basic server application in action at http://localhost:3000/plivo/conference/.

Create a Plivo application for the conference call

Associate the Go application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Go development environment and a web server and safely expose that server to the internet.

Create a Flask application to implement a conference call

Create a file called conference_call.py and paste into it this code.

from flask import Flask, Response
from plivo import plivoxml

app = Flask(__name__)

@app.route('/conference_call/', methods=['GET', 'POST'])
def conference_cal():

    response = plivoxml.ResponseElement()
    response.add(plivoxml.SpeakElement('You will now be placed into the demo conference'))
    response.add(
        plivoxml.ConferenceElement(
            'demo',
            start_conference_on_enter=False,
            wait_sound='https://<yourdomain>.com/waitmusic/'))
    
    return Response(response.to_string(), mimetype='application/xml')

if __name__ == '__main__':
    app.run(host='0.0.0.0', debug=True)

Save the file and run it.

$ python conference_call.py

You should see your basic server application in action at http://localhost:5000/conference_call/.

Create a Plivo application for the conference call

Associate the Python application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a PHP development environment and a web server and safely expose that server to the internet.

Create a Laravel controller to implement a conference call

Change to the project directory and run this command to create a Laravel controller for inbound calls.

$ php artisan make:controller VoiceController

Edit the app/http/controllers/voiceController.php file and paste into it this code.

<?php

namespace App\Http\Controllers;
require '../../vendor/autoload.php';
use Plivo\RestClient;
use Plivo\XML\Response;
use Illuminate\Http\Request;

class VoiceController extends Controller
{
    public function conferenceCall()
    {
      $response = new Response();

      $speak_body = "You will now be placed into the demo conference";
      $response->addSpeak($speak_body);

      $params = array(
         'startConferenceOnEnter' => "true",
         'endConferenceOnExit' => "true"
      );
    
      $conference_name = "demo";
      $response->addConference($conference_name, $params);
    
      Header('Content-type: text/xml');
      echo $response->toXML();
    }
}

Add a route

Add a route for the forward function in the VoiceController class. Edit routes/web.php and add this line.

Route::match(['get', 'post'], '/conferencecall', 'VoiceController@conferenceCall');

Now VoiceController is ready to forward incoming calls to your Plivo number. Start the Laravel server.

$ php artisan serve

You should see your basic server application in action at http://localhost:8000/conferencecall/.

Create a Plivo application for the conference call

Associate the Go application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a .NET development environment and a web server and safely expose that server to the internet.

Create an MVC controller to implement a conference call

In Visual Studio, create a controller called ConferencecallController.cs and paste into it this code.

using System;
using Plivo.XML;
using System.Collections.Generic;
using Microsoft.AspNetCore.Mvc;

namespace Conferencecall
{
	public class ConferencecallController : Controller
	{
		public IActionResult Index()
		{
			Plivo.XML.Response resp = new Plivo.XML.Response();
			resp.AddSpeak("You will now be placed into the demo conference", 
             new Dictionary<string, string>() { });
			resp.AddConference("demo", 
               new Dictionary<string, string>()
			{
				{"startConferenceOnEnter", "true"},
				{"endConferenceOnExit", "true"},
				{"waitSound", "https://<yourdomain>.com/waitmusic/"}
			});
			var output = resp.ToString();
			Console.WriteLine(output);

			return this.Content(output, "text/xml");
		}
	}
}

Run the project and you should see your basic server application in action at http://localhost:5000/conferencecall/.

Create a Plivo application for the conference call

Associate the .NET application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Java development environment and a web server and safely expose that server to the internet.

Create a Spark application to implement a conference call

Ceate a Java class called conferencecall and paste into it this code.

import static spark.Spark.*;
import com.plivo.api.xml.Dial;
import com.plivo.api.xml.Number;
import com.plivo.api.xml.Response;

public class conferencecall {
    public static void main(String[] args) {
        get("/conference_call/", (request, response) - > {
            Response response = new Response()
            .children(
                new Speak("You will now be placed into the demo conference"),
                new Conference("demo")
                .endConferenceOnExit(true)
                .startConferenceOnEnter(false)
                .waitSound("https://<yourdomain>.com/waitmusic/")

            );
            System.out.println(response.toXmlString());
            // Returns the XML
            return response.toXmlString();
        });
    }
}

Save the file and run the project, and you should see your basic server application in action at http://localhost:4567/conference_call/.

Create a Plivo application for the conference call

Associate the Java application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.

You can create and deploy a workflow to implement conference calling with a few clicks on the PHLO canvas.

​

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming calls, you must have a voice-enabled Plivo phone number. You can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API.

​

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

• Click CREATE NEW PHLO.

• In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.

  Note: The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.

• From the list of components on the left side, drag and drop the Conference Bridge component onto the canvas. When a component is placed on the canvas it becomes a node.

• Draw a line to connect the Start node‘s Incoming Call trigger state to the Conference Bridge node.

• In the Configuration tab at the right of the canvas, enter a Conference ID for your conference. You can also add an announcement message to greet callers, and configure the hold music.

• Once you’ve configured the node, click Validate to save the configuration.

• Give the PHLO a name by clicking in the upper left, then click Save.

Your complete PHLO should look like this.

​

Assign the PHLO to a Plivo number

Once you’ve created and configured your PHLO, assign it to a Plivo number.

• On the Numbers page of the console, under Your Numbers, click the phone number you want to use for the PHLO.
• In the Number Configuration box, select PHLO from the Application Type drop-down.
• From the PHLO Name drop-down, select the PHLO you want to use with the phone number, then click Update Number.

​

Test

You can now call to your Plivo phone number and see how callers are added to a conference call.

For more information about creating a PHLO application, see the PHLO Getting Started guide. For information on components and their variables, see the PHLO Components Library.

Here’s how to receive a call on a Plivo number and add the caller to a conference call named “demo” using the Conference XML element.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. You must have a voice-enabled Plivo phone number to receive incoming calls; you can rent numbers from the Numbers page of the Plivo console, or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Go development environment and a web server and safely expose that server to the internet.

Create a Go server to implement a conference call

Create a file called conference_call.go and paste into it this code.

package main

import (
    "net/http"
    "github.com/plivo/plivo-go/v7/xml"

)

func handler(w http.ResponseWriter, r *http.Request) {
    response := xml.ResponseElement{
        Contents: []interface{} {
            new(xml.SpeakElement).
            AddSpeak("You will now be placed into the demo conference"),
            new(xml.ConferenceElement).
            SetEndConferenceOnExit(true).
            SetStartConferenceOnEnter(false).
            SetWaitSound("https://<yourdomain>.com/waitmusic/").
            SetContents("demo"),
        },
    }
    w.Write([]byte(response.String()))
    return
}

func main() {
    http.HandleFunc("/conference_call/", handler)
    http.ListenAndServe(":8080", nil)
}

Save the file and run it.

$ go run conference_call.go

You should see your basic server application in action at http://localhost:8080/conference_call/.

Create a Plivo application for the conference call

Associate the Go application you created with Plivo by creating a Plivo application. Visit Voice > Applications in the Plivo console and click on Add New Application, or use Plivo’s Application API.

Give your application a name — we called ours Conference Call. Enter the server URL you want to use (for example https://<yourdomain>.com/conference_call/) in the Answer URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.

From the Application Type drop-down, select XML Application.

From the Plivo Application drop-down, select Conference Call (the name we gave the application).

Click Update Number to save.

Test

Make a call to your Plivo number. You should be placed into a conference.