I using this command to make a call. I hosted the xml in amazon s3 and made it public. The call says, "Sorry, an application error has occurred. Please help
curl -XPOST https://api.twilio.com/2010-04-01/Accounts/kjfwbkjfejbfgeirbgiregribg/Calls.json -d "Url=http://read-voice.xyz.s3-website-us-east-1.amazonaws.com/voice.xml" -d "To=%2B1234567812" -d "From=%2B1234567812" -u 'ssllsdnf wfwefklwefwefwef:wjfdbewfergergerg'
This is the XML
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say voice="alice">Thanks for trying our documentation. Enjoy!</Say>
</Response>