text: // Download the Node helper library from twilio.com/docs/node/install
  // These identifiers are your accountSid and authToken from
  // https://www.twilio.com/console
  const accountSid = 'ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
  const authToken = 'your_auth_token';
  const client = require('twilio')(accountSid, authToken);
  
  client.calls
    .create({
      url: 'http://www.example.com/sipdial.xml',
      to: 'sip:kate@example.com',
      from: 'Jack',
    })
    .then(call => process.stdout.write(call.sid));
  