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

Topic Last Modified: 2015-03-08

The Enable-UMServer cmdlet sets the status of a Unified Messaging server to enabled. This enables the Unified Messaging (UM) server to process UM calls.

Enable-UMServer -Identity <UMServerIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

The Enable-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. The status variable lets you 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 Enable-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 enabled. This is the directory object ID for the Unified Messaging server.




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 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



This example enables Unified Messaging on the Unified Messaging server that is named MyUMServer.

Enable-UMServer -Identity MyUMServer
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