WTE Performance Counters

Platform SDK: Web Telephony Engine

WTE Performance Counters

WTE makes available several performance counters to monitor activity on your WTE server. These performance counters are defined in the system32 file WTEPERF.ini and are installed during WTE setup.

Name	Type	Description
Web Telephony Engine	Object	Web Telephony Engine server performance data
Addresses Serviced	Counter	The number of addresses serviced.
Active Sessions	Integer	The number of currently active sessions.
Average Session Duration	Integer	The average duration (in milliseconds) of all active sessions.
Maximum session duration	Counter	The maximum duration (in milliseconds) of a session since startup.
Offered Calls	Counter	The number of calls offered to Web Telephony Engine.
Average Offering Duration	Integer	The average duration (in milliseconds) of all calls currently in offering state.
Maximum Offering Duration	Counter	The maximum duration (in milliseconds) of offering state for all calls since startup.
Active Calls	Integer	The number of currently active calls.
Average Call Duration	Integer	The average duration (in milliseconds) of all currently active calls.
Maximum Call Duration	Counter	The maximum duration (in milliseconds) of all calls since startup.
Sessions In Post Call Page	Integer	The number of sessions in post call page.
Average Post Call Page Duration	Counter	Average duration (in milliseconds) of sessions in post call page.
Maximum Post Call Page Duration	Counter	The maximum duration (in milliseconds) of all sessions in post call page since startup.
Maximum Simultaneous Calls	Counter	The maximum number of simultaneous calls since startup.
Total Calls	Counter	Total calls handled by Web Telephony Engine since startup.

You can access the data in the performance counters in several ways, including:

Through the registry key HKEY_PEFORMANCE_DATA. Note that the data is not stored in the registry database. You must use the registry function RegQueryValueEx, with a handle to the HKEY_PEFORMANCE_DATA key to query WTE for the performance data.
Through the Win32 function PdhGetCounterInfo and other performance data handling functions. For a complete listing of this function library, see Performance Monitoring Functions.

For more information on using Performance Counters, see Performance Monitoring.