Twilio voice callbacks

Professional service example code v1

Execute studio flow that makes outbound call to customer:

// Download the helper library from
// Find your Account SID and Auth Token at
// and set the environment variables. See
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const authToken = process.env.TWILIO_AUTH_TOKEN;
const client = require('twilio')(accountSid, authToken);'FWXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
                .create({parameters: {
                   foo: 'bar'
                 }, to: '+15558675310', from: '+15017122661'})
                .then(execution => console.log(execution.sid));