eG Monitoring
 

Measures reported by LSCallParkSvcTest

Enterprise Voice call management features control how incoming calls are routed and answered. Lync Server 2013 provides the following call management features:

  • Call Park: Enables voice users to temporarily park a call and then pick it up from the same phone or another phone.
  • Group Pickup: Enables users to answer calls made to another user who is assigned to a pickup group by dialing the call pickup group number.
  • Response Group: Routes incoming calls to groups of agents by using hunt groups or interactive voice response (IVR) questions and answers.
  • Announcement: Plays a message for calls made to an unassigned number, or routes the call elsewhere, or both.
The Call Park application enables an Enterprise Voice user to put a call on hold from one telephone and then retrieve the call later from any telephone. When the user parks a call, Lync Server transfers the call to a temporary number, called an orbit, where the call is held until someone retrieves it or it times out. In environments where audio/video calls play a major role, the administrators may find it difficult to track the number of calls routed to the users at any given point of time. The Call Park Services test addresses such issues.

Using this test, administrators can easily identify the number of calls that were parked, the call park requests that failed, the call park requests that failed due to unavailability of the orbit, number of times a call was failed to be retrieved etc. This way, administrators may be able to identify the load on the lync server and act accordingly.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
park_req_failed Indicates the number of call park requests that failed during the last measurement period. Number  
UnavailOrbit_park_fail Indicates the number of call park requests that failed due to the unavailability of an orbit during the last measurement period. Number The Call Park application uses extension numbers in the Call Park orbit table to park calls. You need to configure the Call Park orbit table with the ranges of extension numbers that your organization reserves for parked calls. These extensions need to be virtual extensions (that is, extensions that have no user or phone assigned to them). Each Lync Server pool where a Call Park application is deployed and configured can have one or more orbit ranges. Orbit ranges must be globally unique across the Lync Server deployment. An orbit may be unavailable if there are too many calls that are currently put on hold.
failed_fallback Indicates the number of fallback attempts that failed duing the last measurement period. Number A high value for this measure is a cause of concern. This may be due to the fallback destination being unreachable.
SipReqReceived Indicates the number of SIP requests received since the start of the call park service. Number  
ParkedCalls Indicates the number of calls that are currently parked. Number  
SqlCalled Indicates the number of times the backend SQL server was called by this service during the last measurement period. Number  
FailedOrbit Indicates the number of times the request to retrieve a call from the orbit failed. Number Ideally, the value of this measure should be zero.