> ## Documentation Index
> Fetch the complete documentation index at: https://plivo.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Make Bulk Calls

> Make outgoing voice calls to multiple numbers with text-to-speech greetings

<Tabs>
  <Tab title="Node">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a Node.js development environment](/sdk/server/set-up-node-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

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

        ```js theme={null}
        var plivo = require('plivo');

        (function main() {
            'use strict';

            var client = new plivo.Client("<auth_id>","<auth_token>");
            client.calls.create(
                "<caller_id>", // from
                "destination_number1<destination_number2", // to
                "https://s3.amazonaws.com/static.plivo.com/answer.xml", // answer url
                {
                    answerMethod: "GET",
                },
            ).then(function (response) {
                console.log(response);
            }, function (err) {
                console.error(err);
            });
        })();
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.

        ```shell theme={null}
        $ node Bulkcall.js
        ```
      </Tab>
    </Tabs>
  </Tab>

  <Tab title="Ruby">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first  outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a Ruby development environment](/sdk/server/set-up-ruby-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

        Create a file called `bulk_call.rb` and paste into it this code.

        ```rb theme={null}
        require 'rubygems'
        require 'plivo'

        include Plivo
        include Plivo::Exceptions

        api = RestClient.new("<auth_id>","<auth_token>")

        begin
          response = api.calls.create(
            '<caller_id>',
            ['<destination_number1>', '<destination_number2>'],
            'https://s3.amazonaws.com/static.plivo.com/answer.xml',
             {
                    answer_method: "GET",
             },
          )
          puts response
        rescue PlivoRESTError => e
          puts 'Exception: ' + e.message
        end
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.

        ```shell theme={null}
        $ ruby bulk_call.rb
        ```
      </Tab>
    </Tabs>
  </Tab>

  <Tab title="Python">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a Python development environment](/sdk/server/set-up-python-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

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

        ```py theme={null}
        import plivo

        client = plivo.RestClient('<auth_id>','<auth_token>')
        response = client.calls.create(
            from='<caller_id>',
            to='destination_number1<destination_number2',
            answer_url='https://s3.amazonaws.com/static.plivo.com/answer.xml',
            answer_method='GET', )
        print(response)
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.

        ```shell theme={null}
        $ python bulk_call.py
        ```
      </Tab>
    </Tabs>
  </Tab>

  <Tab title="PHP">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a PHP development environment](/sdk/server/set-up-php-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

        Create a file called `BulkCall.php` and paste into it this code:

        ```php theme={null}
        <?php
        require 'vendor/autoload.php';
        use Plivo\RestClient;

        $auth_id    = "<auth_id>";
        $auth_token = "<auth_token>";
        $p          = new RestClient($auth_id, $auth_token);

        $response = $client->calls->create('<caller_id>',
                                         ['<destination_number1>', '<destination_number2>'],
                                         'https://s3.amazonaws.com/static.plivo.com/answer.xml',);
        print_r($response);
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.

        ```shell theme={null}
        $ php BulkCall.php
        ```
      </Tab>
    </Tabs>
  </Tab>

  <Tab title=".NET">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a .NET development environment](/sdk/server/set-up-dotnet-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

        In Visual Studio, in the CS project, open the file `Program.cs` and paste into it this code.

        ```cs theme={null}
        using System;
        using System.Collections.Generic;
        using Plivo;

        namespace testplivo
        {
            class Program
            {
                static void Main(string[] args)
                {
                    var api = new PlivoApi("<auth_id>","<auth_token>");
                    var response = api.Call.Create(
                        to: new List<String> { "<destination_number1>", "<destination_number2>" },
                        from: "<caller_id>",
                        answerMethod: "GET",
                        answerUrl: "https://s3.amazonaws.com/static.plivo.com/answer.xml"
                    );
                    Console.WriteLine(response);
                }
            }
        }
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.
      </Tab>
    </Tabs>
  </Tab>

  <Tab title="Java">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. You can also follow our instructions to [set up a Java development environment](/sdk/server/set-up-java-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

        Create a Java class in the project called `BulkCall` and paste into it this code.

        ```java theme={null}
        import java.io.IOException;
        import java.util.Collections;
        import com.plivo.api.Plivo;
        import com.plivo.api.exceptions.PlivoRestException;
        import com.plivo.api.models.call.Call;
        import com.plivo.api.models.call.CallCreateResponse;

        class MakeCall {
            public static void main(String [] args) throws IOException, PlivoRestException {
                Plivo.init("<auth_id>","<auth_token>");
                CallCreateResponse response = Call.creator("<caller_id>",
                        Collections.singletonList("<destination_number1>", "<destination_number2>"),
                        "https://s3.amazonaws.com/static.plivo.com/answer.xml")
                        .answerMethod("GET")
                        .create();
                System.out.println(response);
            }
        }
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.
      </Tab>
    </Tabs>
  </Tab>

  <Tab title="Go">
    ## Overview

    This guide shows how to make an outgoing call to multiple numbers and greet call recipients with a text-to-speech message when they answer. Use cases such as voice notifications and alerts, voice surveys, and voice one-time passwords involve outbound calls as part of their call flow.

    You can start making and receiving calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

    <Tabs>
      <Tab title="Using XML">
        To make bulk calls using Plivo APIs, you make an HTTP POST request to the Call API as you would to place a single outbound call, but add multiple destination numbers.

        ## How it works

        <Frame>
          <img src="https://mintcdn.com/plivo/M2NzHE_bNZbCm0gd/images/make-bulk-calls.png?fit=max&auto=format&n=M2NzHE_bNZbCm0gd&q=85&s=fea79ace9feb45bfb5ee7bbb98831781" alt="Outbound Call Flow" width="1446" height="774" data-path="images/make-bulk-calls.png" />
        </Frame>

        Plivo requests an answer URL when the call is answered (step 4) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. To see how this works, you can use [https://s3.amazonaws.com/static.plivo.com/answer.xml](https://s3.amazonaws.com/static.plivo.com/answer.xml) as an answer URL to test your first outgoing call. The file contains this XML code:

        ```xml theme={null}
        <Response>
        <Speak>Congratulations! You've made your first outbound call!</Speak>
        </Response>
        ```

        This code instructs Plivo to say, “Congratulations! You’ve made your first outbound call!” to the call recipients. You can find the entire list of valid Plivo XML verbs in our [XML Reference](/voice/xml/overview/) documentation and a web server and safely expose that server to the internet.

        ## Prerequisites

        To get started, you need a Plivo account —  [sign up](https://cx.plivo.com/signup) with your work email address if you don’t have one already. If this is your first time using Plivo APIs, follow our instructions to [set up a Go development environment](/sdk/server/set-up-go-dev-environment-api-xml-voice/).

        ## Make an outbound call to multiple numbers

        Create a file called `BulkCall.go` and paste into it this code:

        ```go theme={null}
        package main

        import "fmt"
        import "github.com/plivo/plivo-go/v7"

        func main() {
        	client, err := plivo.NewClient("<auth_id>","<auth_token>", &plivo.ClientOptions{})
        	if err != nil {
        			fmt.Print("Error", err.Error())
        			return
        		}
        	response, err := client.Calls.Create(
        		plivo.CallCreateParams{
        			From: "<caller_id>",
        			To: "destination_number1<destination_number2",
        			AnswerURL: "https://s3.amazonaws.com/static.plivo.com/answer.xml",
        			AnswerMethod: "GET",
        		},
        	)
        	if err != nil {
        			fmt.Print("Error", err.Error())
        			return
        		}
        	fmt.Printf("Response: %#v\n", response)
        }
        ```

        Replace the auth placeholders with your authentication credentials from the [Plivo console](https://cx.plivo.com/home). Replace the phone number placeholders with actual phone numbers in [E.164 format](https://en.wikipedia.org/wiki/E.164) (for example, +12025551234).

        ## Test

        Save the file and run it.

        ```shell theme={null}
        go run BulkCall.go
        ```
      </Tab>
    </Tabs>
  </Tab>
</Tabs>