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Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1

Topic Last Modified: 2007-06-22

The Disable-UMServer cmdlet sets the status of a Unified Messaging (UM) server to disabled. This prevents the Unified Messaging server from processing UM calls.

Disable-UMServer -Identity <UMServerIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-Immediate <$true | $false>] [-WhatIf [<SwitchParameter>]]

The Disable-UMServer cmdlet sets the status of a Unified Messaging server. A Unified Messaging server has a logical status variable that is controlled by using the enable and disable cmdlets. A Unified Messaging server will not process any new calls unless it is in the enabled state. This status variable lets an administrator start or stop call processing on a Unified Messaging server so that the Unified Messaging server can be brought online or taken offline in a controlled way.

To run the Disable-UMServer cmdlet, the account you use must be delegated the Exchange Server Administrator role and local Administrators group for the target server.

For more information about permissions, delegating roles, and the rights that are required to administer Microsoft Exchange Server 2007, see Permission Considerations.


Parameter Required Type Description




This parameter specifies the identifier for the Unified Messaging server that is being disabled. This is the directory object ID for the UM server object.




This parameter causes the command to pause processing and requires the administrator to acknowledge what the command will do before processing continues. The default value is $true.




This parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to the Active Directory directory service.




This parameter specifies whether the Unified Messaging server will drop all current calls or enable current calls to finish. If this parameter is set to $true, all calls that are currently connected will be disconnected.




This parameter instructs the command to simulate the actions that it would take on the object. By using the WhatIf parameter, the administrator can view what changes would occur without having to apply any of those changes. The default value is $true.


Error Description




Exceptions Description



The first example disables Unified Messaging on the Unified Messaging server named MyUMServer but does not disconnect calls that are being processed.

The second example disables Unified Messaging on the Unified Messaging server named MyUMServer and disconnects all calls that are being processed.

Disable-UMServer -Identity MyUMServer

Disable-UMServer -Identity MyUMServer -Immediate $true
To ensure that you are reading the most up-to-date information and to find additional Exchange Server 2007 documentation, visit the Exchange Server TechCenter.
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