The 'My Twilio' module provides integration with the Twilio cloud communication platform providing your users two-factor authentication via SMS.
All HTTP requests sent from this module are sent over curl and no additional libraries are required for its functioning.
You will need to input active Twilio account credentials(account SID/token/twilio phone number) on 'My Twilio' administration configuration page:
admin/config/system/my-twilio.
In case Your system or network configuration does not allow Drupal to access web pages You will also need to add the following line to Your settings.php file:
$conf['drupal_http_request_fails'] = FALSE;