Bug: Fix Twilio StatusCallback Validation Warning:

Message

XML Validation warning

Error Description

## Warning - 12200 ### Schema validation warning The provided XML does not conform to the Twilio Markup XML schema. Please refer to the specific error and correct the problem.
Possible Solutions

    Check the line and column reported by the warning to see what part of your XML response caused the complaint
    Verify that your application server is accepting and properly responding to any custom parameters you may be passing

Possible Causes

    Misspelled verbs
    Incorrect case for verbs; TwiML is case-sensitive, so <Say> works, but <say> will not
    Misspelled or unknown attributes
    Unknown or unexpected nested elements.



parserMessage

Attribute 'statusCallbackEvent' is not allowed to appear in element 'Dial'.

Need to fix