Applies to: Exchange Server 2016

This cmdlet is available only in on-premises Exchange Server 2016.

Use the Get-UMService cmdlet to view the properties of the Microsoft Exchange Unified Messaging service on Exchange servers in your organization. This service exists on Exchange Server 2016 and Exchange Server 2013 Mailbox servers, and on Exchange Server 2010 Unified Messaging servers.

For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.

Get-UMService [-Identity <UMServerIdParameter>] [-DomainController <Fqdn>]

This example displays a summary list of the Microsoft Exchange Unified Messaging service settings on all Exchange servers in the Active Directory forest.


This example displays detailed information for the Microsoft Exchange Unified Messaging service settings on the server named MBX01.

Get-UMService -Identity MBX01 | Format-List

When the cmdlet is used for a single Exchange server, it returns the Unified Messaging service properties, including MaxCalls, MaxFaxCalls, and UMDialPlans. The properties and their values for the Exchange server are stored in the Unified Messaging section of the Exchange Server configuration object in Active Directory.

The ExchangeVersion attribute that's returned is the minimum version of Exchange you can use to manage the returned object. This attribute isn't the same as the version of Exchange that's displayed in the Exchange admin center when you select Server Configuration.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "UM service (back-end)" entry in the Unified Messaging permissions topic.


Parameter Required Type Description




The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example,




The Server parameter specifies the Exchange server where you want to run this command. You can use any value that uniquely identifies the server. For example:

  • Name

  • FQDN

  • Distinguished name (DN)

  • Exchange Legacy DN

If you don't use this parameter, the command is run on the local server.

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.