Interactive voice response (IVR) solution

require 'twilio-ruby'


class TwilioController < ApplicationController

  def index
    render plain: "Dial Me."
  end

  # POST ivr/welcome
  def ivr_welcome
    response = Twilio::TwiML::VoiceResponse.new
    response.gather(num_digits: '1', action: menu_path) do |gather|
      gather.say(message: "Thanks for calling the E T Phone Home Service. Please press 1 for
      directions. Press 2 for a list of planets to call.", loop: 3)
    end
    render xml: response.to_s
  end

  # GET ivr/selection
  def menu_selection
    user_selection = params[:Digits]

    case user_selection
    when "1"
      @output = "To get to your extraction point, get on your bike and go down
        the street. Then Left down an alley. Avoid the police cars. Turn left
        into an unfinished housing development. Fly over the roadblock. Go
        passed the moon. Soon after you will see your mother ship."
      twiml_say(@output, true)
    when "2"
      list_planets
    else
      @output = "Returning to the main menu."
      twiml_say(@output)
    end

  end

<?php

namespace App\Http\Controllers;

use App\Http\Requests;
use Illuminate\Http\Request;
use Twilio\Twiml;

class IvrController extends Controller
{
    public function __construct()
    {
        $this->_thankYouMessage = 'Thank you for calling the ET Phone Home' .
            ' Service - the adventurous alien\'s first choice' .
            ' in intergalactic travel.';

    }

    /**
     * Responds with a welcome message with instructions
     *
     * @return \Illuminate\Http\Response
     */
    public function showWelcome()
    {
        $response = new Twiml();
        $gather = $response->gather(
            [
                'numDigits' => 1,
                'action' => route('menu-response', [], false)
            ]
        );

        $gather->say(
            'Thanks for calling the E T Phone Home Service.' .
            'Please press 1 for directions. Press 2 for a ' .
            'list of planets to call.',
            ['loop' => 3]
        );

        return $response;
    }

    /**
     * Responds to selection of an option by the caller
     *
     * @return \Illuminate\Http\Response
     */
    public function showMenuResponse(Request $request)
    {
        $selectedOption = $request->input('Digits');

        switch ($selectedOption) {
            case 1:
                return $this->_getReturnInstructions();
            case 2:
                return $this->_getPlanetsMenu();
        }

        $response = new Twiml();
        $response->say(
            'Returning to the main menu',
            ['voice' => 'Polly.Amy', 'language' => 'en-GB']
        );
        $response->redirect(route('welcome', [], false));

        return $response;
    }

const VoiceResponse = require('twilio').twiml.VoiceResponse;

exports.welcome = function welcome() {
  const voiceResponse = new VoiceResponse();

  const gather = voiceResponse.gather({
    action: '/ivr/menu',
    numDigits: '1',
    method: 'POST',
  });

  gather.say(
    'Thanks for calling the E T Phone Home Service. ' +
    'Please press 1 for directions. ' +
    'Press 2 for a list of planets to call.',
    {loop: 3}
  );

  return voiceResponse.toString();
};

exports.menu = function menu(digit) {
  const optionActions = {
    '1': giveExtractionPointInstructions,
    '2': listPlanets,
  };

  return (optionActions[digit])
    ? optionActions[digit]()
    : redirectWelcome();
};

package com.twilio.phonetree.servlet.ivr;

import com.twilio.twiml.TwiMLException;
import com.twilio.twiml.VoiceResponse;
import com.twilio.twiml.voice.Gather;
import com.twilio.twiml.voice.Play;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class WelcomeServlet extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest servletRequest, HttpServletResponse servletResponse)
            throws IOException {
        String mp3file = "https://raw.githubusercontent.com/TwilioDevEd/"
                + "ivr-phone-tree-servlets/master/et-phone.mp3";
        VoiceResponse response = new VoiceResponse.Builder()
                .gather(new Gather.Builder()
                        .action("/menu/show")
                        .numDigits(1)
                        .build())
                .play(new Play.Builder(mp3file)
                        .loop(3)
                        .build())
                .build();

        servletResponse.setContentType("text/xml");
        try {
            servletResponse.getWriter().write(response.toXml());
        } catch (TwiMLException e) {
            throw new RuntimeException(e);
        }
    }
}

using System.Web.Mvc;
using Twilio.AspNet.Mvc;
using Twilio.TwiML;
using Twilio.TwiML.Voice;

namespace IVRPhoneTree.Web.Controllers
{
    public class IVRController : TwilioController
    {
        // GET: IVR
        public ActionResult Index()
        {
            return View();
        }

        // POST: IVR/Welcome
        [HttpPost]
        public TwiMLResult Welcome()
        {
            var response = new VoiceResponse();
            var gather = new Gather(action: Url.ActionUri("Show", "Menu"), numDigits: 1);
            gather.Say("Thank you for calling the E.T. Phone Home Service - the " +
                       "adventurous alien's first choice in intergalactic travel. " +
                       "Press 1 for directions, press 2 to make a call.");
            response.Append(gather);

            return TwiML(response);
        }
    }
}