Unified Messaging Counters

Article
06/29/2011

[This topic is in progress.]

The following table shows Unified Messaging (UM) counters.

Counter	Description	Threshold	Troubleshooting
MSExchangeUMAvailability\% of Failed Mailbox Connection Attempts Over the Last Hour	Recent Failed Mailbox Connection Attempts % is the percentage of mailbox connection attempts that failed in the last hour.	Should less than 5%.
MSExchangeUMAvailability\% of Inbound Calls Rejected by UM Service Over the Last Hour	% of Inbound Calls Rejected by the UM Service Over the Last Hour is the precentage of inbound calls that were rejected by the Microsoft Exchange Unified Messaging service over the last hour.	Should less than 5%.
MSExchangeUMAvailability\% of Inbound Calls Rejected by UM Worker Process over the Last Hour	% of Inbound Calls Rejected by the UM Worker Process Over the Last Hour is the percentage of inbound calls that were rejected by the UM Worker process over the last hour.	Should less than 5%.
MSExchangeUMAvailability\% of Messages Successfully Processed Over the Last Hour	% of Messages Successfully Processed Over the Last Hour is the percentage of messages that were successfully processed by the Microsoft Exchange Unified Messaging service over the last hour.	Should be greater or equal to 95%
MSExchangeUMAvailability\% of Partner Voice Message Transcription Failures Over the Last Hour	Recent Partner Voice Message Transcription Failures is the failure rate of partner voice mail transcription in the last hour.	Should less than 5%.
MSExchangeUMAvailability\Call Answer Queued Messages	Shows the number of messages created and not yet submitted for delivery.	Should be less than 50 at all times.
MSExchangeUMAvailability\Direct Access Failures	Shows the number of times that attempts to access Active Directory failed.	Should be 0 at all times.
MSExchangeUMAvailability\Unhandled Exceptions/sec	Shows the number of calls that were disconnected after an internal system error occurred in the last second.	Should be 0 at all times.
MSExchangeUMAvailability\Queued OCS User Event Notifications	Shows the number of notifications that have been created and not yet submitted for delivery. Represents the number of missed call notifications that have been generated in the Office Communications Server environment and have not been submitted for delivery.	Should be 0 at all times.
MSExchangeUMPerformance\Operations over Six Seconds	Shows the number of all Unified Messaging operations that took more than six seconds to complete. This is the time during which a caller was waiting for Unified Messaging to respond.	Should be 0 at all times.
MSExchangeUMCallAnswer\Calls Disconnected by Callers During UM Audio Hourglass	Shows the number of calls during which the caller disconnected while Unified Messaging was playing the audio hourglass tones.	Should be 0 at all times.	A non-zero value suggests excessive latency between a Unified Messaging server and targeted domain controller.