亚马逊SNS/短信，发送短信，交付状态

我用亚马逊PHP SDK试图发送短信我使用了下列代码：

<?php
require 'vendor/autoload.php';

$sdk = new Aws\Sns\SnsClient([
    'region'  => 'eu-west-1',
    'version' => 'latest',
    'credentials' => ['key' => 'xxx', 'secret' => 'xxx']
  ]);

$result = $sdk->publish([
    'Message' => 'This is a test message.',
    'PhoneNumber' => '+123456789',
    'MessageAttributes' => ['AWS.SNS.SMS.SenderID' => [
         'DataType' => 'String',
         'StringValue' => 'testing sms'
      ]
  ]]);

print_r( $result );

我的问题是我怎么得到交付状态回到一个终点url HTTPS或HTTP? 喜欢的短信了传递或失败? 任何想法?