Reject Incoming Calls

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 application to reject incoming calls

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

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

app.set('port', (process.env.PORT || 5000));

app.all('/reject_calls/', function(request, response) {
    var response = plivo.Response();
    var params = {
        'reason': 'rejected'
    };
    response.addHangup(params);
    res.writeHead(200, {'Content-Type': 'text/xml'});
    res.end(response.toXML());
});

app.listen(app.get('port'), function() {
    console.log('Node app is running on port', app.get('port'));
});

Create a Plivo application to reject calls

Associate the code 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 reject incoming calls

Change to the project directory and run this command to create a Rails controller to reject incoming calls.

$ rails generate controller Plivo voice

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

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

Open the file app/controllers/plivo_controller.rb and paste this code in the PlivoController class:

include Plivo
include Plivo::XML
include Plivo::Exceptions

class PlivoController < ApplicationController
 def reject
    r = Response.new()
    params = {
        'reason' => 'rejected', # Specify the reason for hangup
    }
    r.addHangup(params)
    xml = Plivo::PlivoXML.new(r)
    render xml: xml.to_xml
 end
end

Create a Plivo application to reject calls

Associate the Rails controller 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 Python development environment and a web server and safely expose that server to the internet.

Create a Flask server to reject incoming calls

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

from flask import Flask, Response
from plivo import plivoxml

app = Flask(__name__)

@app.route("/reject_call/", methods=['GET','POST'])
def hangup():
    # Generate Hangup XML to reject an incoming call.
    response = plivoxml.ResponseElement()
    params = {'reason': 'rejected'}
    response.add(plivoxml.HangupElement(**params))

    return Response(response.to_string(), mimetype='application/xml')

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

Create a Plivo application to reject calls

Associate the Flask server 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 reject incoming calls

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

$ php artisan make:controller VoiceController

The command generates a controller named VoiceController in the app/http/controllers/ directory. 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
{
    // Speak XML to handle your first incoming call
    public function rejectCall()
    {
      $r = new Response();
      // Generate Hangup XML
      $params = array(
            'reason' => 'rejected', # Specify the reason for hangup
      );

      $r->addHangup($params);
      Header('Content-type: text/xml');
      echo $r->toXML();
    }
}

Create a Plivo application to reject calls

Associate the controller 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 reject incoming calls

In Visual Studio, create a new project. Use the template for Web Application (Model-View-Controller).

Give the project a name — we used Rejectcall.Navigate to the Controllers directory in the Rejectcall project. Create a controller named RejectcallController.cs and paste into it this code.

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

namespace Rejectcall
{
    public class RejectcallController : Controller
    {
        public IActionResult Index()
        {
            Plivo.XML.Response resp = new Plivo.XML.Response();
            // Add Hangup XML Tag
            resp.AddHangup(new Dictionary<string, string>()
            {
                {"reason","rejected"}, // Specify the reason for hangup
            });
            var output = resp.ToString();
            return this.Content(output, "text/xml");
        }
    }
}

Create a Plivo application to reject calls

Associate the controller 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 reject incoming calls

Create a Java class named RejectCall and paste into it this code.

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

public class rejectcall {
    public static void main(String[] args) {
        post("/reject_calls", (request, response) - > {
            response.type("application/xml");
            Response resp = new Response()
            .children(
                new Hangup()
                .reason("rejected")
            );
            // Returns the XML
            return resp.toXmlString();
        });
    }
}

Create a Plivo application to reject calls

Associate the Spark 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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

Overview

When you don’t want to receive incoming calls on your Plivo numbers, follow the instructions in this guide to create an application to reject them.You can reject incoming calls either by using our PHLO visual workflow builder or our APIs and XML documents. Follow the instructions in one of the tabs below.

Using PHLO
Using XML

You can create and deploy a PHLO to reject incoming calls with a few clicks on the PHLO canvas, without writing a single line of code.

How it works

When you receive a call on a voice-enabled Plivo number, you can control the call flow by associating a PHLO application to that Plivo number. Plivo will fetch the PHLO associated with the number and expect valid instructions via PHLO to handle the call.

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 hand side, drag and drop the Hangup 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 Hangup node.
Click Validate to save the configuration.
Give the PHLO a name by clicking in the upper left, then click Save.

Assign the PHLO to a Plivo number

Once you have created and configured your PHLO, assign your PHLO 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 number, then click Update Number.

Test

You can now make a call to your Plivo phone number and see that calls are rejected.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 use a Plivo XML document that rejects incoming calls on a Plivo number.

How it works

Plivo requests an answer URL when it answers the call (step 2) and expects the file at that address to hold a valid XML response from the application with instructions on how to handle the call. In this example, when an incoming call is received, Plivo rejects the call using the Hangup XML element.

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 reject incoming calls

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

package main

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

func main() {
	m := martini.Classic()
	m.Get("/reject_call", func(w http.ResponseWriter, r *http.Request) string {
		w.Header().Set("Content-Type", "application/xml")

		response := xml.ResponseElement{
			Contents: []interface{}{
				new(xml.HangupElement).
					SetReason("rejected"),
			},
		}
		print(response.String())
		return response.String()
	})
	m.Run()
}

Create a Plivo application to reject calls

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 Reject Call. Enter the server URL you want to use (for example https://<yourdomain>.com/reject_caller/) 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 Reject Call (the name we gave the application).Click Update Number to save.

Test

Make a call to your Plivo number using any phone. Plivo will send a request to the answer URL you provided requesting an XML response and then process the call according to the instructions in the XML document the server provides — in this case, rejecting it.

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Troubleshooting

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create an application to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create a Rails controller to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create a Flask server to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create a Laravel controller to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create an MVC controller to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Assign the PHLO to a Plivo number

​Test

​How it works

​Prerequisites

​Create a Spark application to reject incoming calls

​Create a Plivo application to reject calls

​Assign a Plivo number to your application

​Test

​Overview

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create an application to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create a Rails controller to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create a Flask server to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create a Laravel controller to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create an MVC controller to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites

Create a Spark application to reject incoming calls

Create a Plivo application to reject calls

Assign a Plivo number to your application

Test

Overview

How it works

Prerequisites

Create the PHLO

Assign the PHLO to a Plivo number

Test

How it works

Prerequisites