Most of the information associated with VoIP Drupal calls are stored in objects of type VoipCall.

Among other things, VoipCall instances keep track of the following elements:

• The id of the node associated with the call
• A unique identifier associated with the call
• The destination name and number of the call
• The caller name and number
• The call status (dialing, completed, etc.)
• Whether or not the call has been answered by a human or machine
• The source of the call (drupal, twilio, etc.)
• The direction of the call (inbound, outbound)
• The dialplan script (aka. VoipScript) of the call
• Start time and duration
• Hangup reason (invalid number, busy, etc.)
• Error messages associated with the call