Interaction Scripter Developer's Guide
This property retrieves or sets the string value that is displayed as call state information in the CIC client. This can be, but does not have to be, the actual call state. For example, although a call in voice mail has a state of ‘Connected', the CallStateString displays ‘VoiceMail' for a CIC client user.
Any string of characters that you wish to assign to the call's state string attribute.
The current call state string is returned. See callObject.stateChangeHandler for additional details.