CmdID / PowerShell / Cmdlets / Enable
Enable-UMMailbox
Use the Enable-UMMailbox cmdlet to enable Unified Messaging (UM) for existing mailbox users. Exchange PowerShell reference
From the Exchange PowerShell reference 16 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the mailbox that you want to enable for Unified Messaging.-UMMailboxPolicyThe UMMailboxPolicy parameter specifies the UM mailbox policy that you want to associate with the mailbox.-AutomaticSpeechRecognitionEnabledThe AutomaticSpeechRecognitionEnabled parameter specifies whether to enable Automatic Speech Recognition (ASR) for the UM mailbox.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-EnableCloudVoiceMailThe EnableCloudVoiceMail switch specifies whether to enable the mailbox for UM in Skype for Business Online.-ExtensionsThe Extensions parameter specifies the extension number for the user.-IgnoreDefaultScopeThe IgnoreDefaultScope switch tells the command to ignore the default recipient scope setting for the Exchange PowerShell session, and to use the entire forest as the scope.-NotifyEmailThe NotifyEmail parameter specifies the email address where the Unified Messaging welcome message is sent.-PilotNumberThe PilotNumber parameter specifies the subscriber access number users can dial to gain access to their mailboxes.-PINThe PIN parameter specifies the value for the initial PIN that's used for the UM mailbox.-PINExpiredThe PINExpired parameter specifies whether the PIN is treated as expired.-SendWelcomeMailThe SendWelcomeMail parameter specifies whether you want to send a welcome message after the mailbox is enabled for UM.-SIPResourceIdentifierThe SIPResourceIdentifier parameter specifies the SIP address or E.164 address for the user.-ValidateOnlyThe ValidateOnly switch specifies whether to evaluate the potential success or failure of the command without making changes.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.