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The Performance Counters for the MOH on the Cisco CallManager 4.x server are unavailable in the Microsoft Windows Perfmon GUI as well as the Cisco RTMT

Core Issue

On a Cisco CallManager cluster, when an attempt is made in order to add the Music on Hold (MOH) counters in the Microsoft Performance Monitoring Tool (Perfmon), they appear as unavailable. In Start > Programs > Administrative Tools > Performance, when Add Counter (+) is clicked and Cisco MOH Device is chosen under Performance Object select, Select Instances From List shows the instances of the devices only if they are registered to that particular Cisco CallManager, otherwise this tab appears as unavailable.


The unavailable Perfmon counters are not an issue on the other Cisco CallManager servers, because this Works as Design (WAD). The Perfmon counters only display on the Cisco CallManager to which the MOH devices are registered and not on all the Cisco CallManager servers.

Refer to Music On Hold for more information on the MOH.

For more Information Troubleshooting Perfmon Data Logging.

Problem Type

Call control software  (CallManager, CallManager Express, ICS7750, SRST, SS7 call agents)

Call Control


CallManager Features

Music on hold (MoH)

Failure Type


Troubleshooting Tools


Real-time monitoring tool (RTMT)

CallManager Versions

CallManager 4.x

User Interfaces

Graphical user interface (GUI)

Version history
Revision #:
1 of 1
Last update:
‎06-22-2009 06:09 PM
Updated by:
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