SWIapps—application session
                                                    This event is written when the application provides a session and step identifier. These identifiers can be set by Nuance-packaged applications; they are used to merge application logs with recognition and text-to-speech logs, and therefore enable analysis, tuning, and reporting.
In addition to the Tokens used for every event, this event has the following tokens:
| 
                                                                     Token  | 
                                                                
                                                                     Meaning  | 
                                                            
|---|---|
| 
                                                                     SESN  | 
                                                                
                                                                     Identifier that uniquely identifies the session. This is also known as the app-session ID.  | 
                                                            
| 
                                                                     STEP  | 
                                                                
                                                                     A counter of recognition events; it is generally incremented once for each recognition or text-to-speech event.  | 
                                                            
Example:
EVNT=SWIapps|SESN=431cc972eaa41c1a22e99ac59f5e4fa4|STEP=3