Call Park Services Test

Enterprise Voice call management features control how incoming calls are routed and answered. Skype for Business 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, Skype for Business 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 Skype for Business server and act accordingly.

Target of the test : A Microsoft Skype for Business server

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for the Microsoft Skype for Business server being monitored.

Configurable parameters for the test

Parameters	Description
Test Period	How often should the test be executed.
Host	The host for which the test is to be configured.
Port	The port at which the specified host listens. The default port is 5060.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Park requests failed	Indicates the number of call park requests that failed during the last measurement period.	Number
Park requests failed due to unavailable orbit	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 Skype for Business 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 Skype for Business Server deployment. An orbit may be unavailable if there are too many calls that are currently put on hold.
Failed fallback attempts	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.
Total SIP requests received	Indicates the number of SIP requests received since the start of the call park service.	Number
Parked calls	Indicates the number of calls that are currently parked.	Number
Total number of time the SQL server was called	Indicates the number of times the backend SQL server was called by this service during the last measurement period.	Number
Failed orbit requests	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.