Ensure you have a twilio account to proceed

1. Create verification service in the link below https://www.twilio.com/console/verify/services

2.Get "SERVICE SID" VAXXXXXX....

3. Get "ACCOUNT SID" and "AUTH TOKEN" here https://www.twilio.com/console

4. Enter the credential to plugin fields

USERNAME == ACCOUNT SID
PASSWORD == AUTH TOKEN
SERVICE SID == SERVICE SID
   

5. Use "Send-Code" and "Verify" in the workflow to authenticate users. If verified the Verify Phone Action return Status as 'approved'

NB: SERVICE SID is same for all-fields in the plugin