如何在Twilio外呼电话中提供用户选项并做出相应响应？

Hey there! The good news is that Twilio's <Gather> verb works perfectly for outbound calls too—you just need to structure your flow a bit differently than the inbound example you found. Let me walk you through how to implement this in PHP:

Step 1: Return TwiML with when the outbound call connects #

When you initiate an outbound call via Twilio's API, you'll specify a URL that Twilio will hit once the call is answered. That URL needs to return TwiML that includes the <Gather> verb to prompt the user for input. Here's a sample script:

<?php
require_once '/path/to/vendor/autoload.php';
use Twilio\TwiML\VoiceResponse;

$response = new VoiceResponse();
// Set up Gather: collect 1 digit, send to /handle-keypress.php via POST
$gather = $response->gather([
    'numDigits' => 1,
    'action' => '/handle-keypress.php',
    'method' => 'POST'
]);
$gather->say('Please press 1 to confirm your appointment, or 2 to reschedule.');

// Fallback message if no input is received after timeout
$response->say('We didn\'t get any input. Thanks for your time, goodbye!');

echo $response;
?>

Step 2: Handle the collected keypress #

Create a second script (handle-keypress.php) that Twilio will send the collected digits to. This is where you can process the user's input and respond accordingly:

<?php
require_once '/path/to/vendor/autoload.php';
use Twilio\TwiML\VoiceResponse;

// Grab the digits sent by Twilio
$userInput = $_POST['Digits'];

$response = new VoiceResponse();
switch ($userInput) {
    case '1':
        $response->say('Great! Your appointment is confirmed. Have a wonderful day.');
        break;
    case '2':
        $response->say('No problem. Please give us a call at 555-1234 to reschedule your appointment.');
        break;
    default:
        $response->say('Sorry, that\'s not a valid option. Goodbye!');
}

echo $response;
?>

Key Notes: #

• When you initiate the outbound call using Twilio's API, make sure the url parameter points to your first script (the one with the <Gather> verb). Twilio will fetch this TwiML as soon as the call is answered.
• Adjust numDigits or add finishOnKey (e.g., finishOnKey: '#') if you need to collect multiple digits or let the user end input manually.
• If you prefer a no-code/low-code approach, you can use Twilio Studio to build your outbound flow—just drag a "Gather Input on Call" component into your flow and configure it to route based on user input.

Hope this gets you sorted out! 😊

内容的提问来源于stack exchange，提问作者coder