To: The number that end user dialed.
From: Callers Caller ID
CallerName: Name of the caller from database, If name is not registered, then we can provide City and State (*Extra charges may apply)
callSid: Unique id for each call. Can be useful for reporting purpose.
Direction: Whether the call is an inbound or outbound call.
Callstatus: What state the call is in at the time of this request. (On hold, in Queue, answered etc.)