An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title		Description	Details
NotifyEmail		The NotifyEmail parameter specifies the email address where the Unified Messaging welcome message is sent. By default, the message is sent to the user's SMTP email address.	Field Name: NotifyEmail Type: String
EnableCloudVoiceMail *		PARAMVALUE: SwitchParameter	Field Name: EnableCloudVoiceMail Type: Boolean
DisplayName			Field Name: DisplayName Type: String
OrganizationId			Field Name: OrganizationId Type: String
	AirSyncNumbers		Field Name: AirSyncNumbers.[n] Type: Array
TUIAccessToCalendarEnabled		The TUIAccessToCalendarEnabled parameter specifies whether UM-enabled users can access and manage their individual calendar using the Microsoft Outlook Voice Access telephone user interface (TUI) or touchtone interface. The default value is $true.	Field Name: TUIAccessToCalendarEnabled Type: Boolean
LegacyExchangeDN			Field Name: LegacyExchangeDN Type: String
AllowUMCallsFromNonUsers		The AllowUMCallsFromNonUsers parameter specifies whether to exclude the mailbox from directory searches.	Field Name: AllowUMCallsFromNonUsers Type: String
SubscriberAccessEnabled		The SubscriberAccessEnabled parameter specifies whether the users are allowed subscriber access to their individual mailboxes. If it's set to $true, after users are authenticated, they're able to retrieve voice mail over the telephone. The default value is $true.	Field Name: SubscriberAccessEnabled Type: Boolean
OperatorNumber		The OperatorNumber parameter specifies the string of digits for the personal operator.	Field Name: OperatorNumber Type: String
ImListMigrationCompleted		The ImListMigrationCompleted parameter specifies whether the UM-enabled user's Lync or Skype for Business contact list is stored in their mailbox. Valid values are: $true The user's Lync or Skype for Business contact list is stored in their Exchange 2016 mailbox. This prevents you from migrating the mailbox back to an Exchange 2010 server. $false The user's Lync or Skype for Business contact list is stored on a Lync or Skype for Business server. This doesn't prevent you from migrating the mailbox back to an Exchange 2010 server. This is the default value. Lync Server 2013 and Skype for Business Server 2015 support storing the user's contact list in their Exchange 2016 mailbox. This feature is known as the unified contact store (UCS), and it allows applications to show a consistent, up-to-date contact list. However, Exchange 2010 doesn't support the unified contact store. Therefore, before you migrate a user's Exchange 2016 mailbox back to Exchange 2010, you need to move the user's Lync or Skype for Business contact list from the unified contact store back to a Lync 2013 or Skype for Business server. For more information, see Configuring Microsoft Lync Server 2013 to use the unified contact store (http://go.microsoft.com/fwlink/p/?LinkID=313550). If you migrate an Exchange 2013 mailbox back to Exchange 2010 while the user's Lync or Skype for Business contact list is stored in the unified contact store, the user could permanently lose access to those contacts. After you verify the user's Lync or Skype for Business contact list has been moved back to a Lync 2013 or Skype for Business server, you should be able to complete the mailbox migration. If you need to migrate the mailbox despite the potential for data loss, you can manually set the ImListMigrationCompleted parameter to $false.	Field Name: ImListMigrationCompleted Type: Boolean
UMSMSNotificationOption		The UMSMSNotificationOption parameter specifies whether a UM-enabled user gets SMS or text messaging notifications for voice mail only, voice mail and missed calls, or no notifications. The values for this parameter are: VoiceMail, VoiceMailAndMissedCalls, and None. The default value is None.	Field Name: UMSMSNotificationOption Type: String
	EmailAddresses		Field Name: EmailAddresses.[n] Type: Array
PSShowComputerName			Field Name: PSShowComputerName Type: Boolean
PinlessAccessToVoiceMailEnabled		The PinlessAccessToVoiceMailEnabled parameter specifies whether UM-enabled users are required to use a PIN to access their voice mail. A PIN is still required to access email and the calendar. The default value is $false.	Field Name: PinlessAccessToVoiceMailEnabled Type: Boolean
UMMailboxPolicy *		The UMMailboxPolicy parameter specifies the UM mailbox policy that you want to associate with the mailbox. You can use any value that uniquely identifies the policy. For example: Name Distinguished name (DN) GUID	Field Name: UMMailboxPolicy Type: String
LinkedMasterAccount			Field Name: LinkedMasterAccount Type: String
TUIAccessToEmailEnabled		The TUIAccessToEmailEnabled parameter specifies whether users can access their individual email messages over the telephone. The default value is $true.	Field Name: TUIAccessToEmailEnabled Type: Boolean
	ObjectClass		Field Name: ObjectClass.[n] Type: Array
	CallAnsweringRulesExtensions		Field Name: CallAnsweringRulesExtensions.[n] Type: Array
PSComputerName			Field Name: PSComputerName Type: String
VoiceMailAnalysisEnabled		The VoiceMailAnalysisEnabled parameter specifies whether a copy of each voice mail left for a UM-enabled user will be forwarded to Microsoft for analysis and improvement of speech recognition features.	Field Name: VoiceMailAnalysisEnabled Type: Boolean
	Extensions	The Extensions parameter specifies the extension number for the user. Either a single extension number or an array of telephone number extensions can be specified. The user's extension must be unique to the UM dial plan. If you don't use this parameter, the command attempts to use a default telephone number value for the user. If you're using a Session Initiation Protocol (SIP) Uniform Resource Identifier (URI) or E.164 dial plan, you also need to use the SIPResourceIdentifier parameter.	Field Name: Extensions.[n] Type: Array
UMEnabled			Field Name: UMEnabled Type: Boolean
PilotNumber		The PilotNumber parameter specifies the subscriber access number users can dial to gain access to their mailboxes. The default value is the subscriber access number that's specified on the UM dial plan.	Field Name: PilotNumber Type: String
PrimarySmtpAddress			Field Name: PrimarySmtpAddress Type: String
ServerName			Field Name: ServerName Type: String
Identity *		The Identity parameter specifies the mailbox that you want to enable for Unified Messaging. You can use any value that uniquely identifies the mailbox. For example: Name Display name Alias Distinguished name (DN) Canonical DN <domain name>\<account name> Email address GUID LegacyExchangeDN SamAccountName User ID or user principal name (UPN)	Field Name: Identity Type: String
DistinguishedName			Field Name: DistinguishedName Type: String
OriginatingServer			Field Name: OriginatingServer Type: String
Name		The Name parameter specifies the display name for the user. The display name is limited to 64 characters.	Field Name: Name Type: String
PinExpired		The PINExpired parameter specifies whether the PIN is treated as expired. If the PIN isn't supplied, the PIN is treated as expired and users are prompted to reset their PIN the next time they log on. $true The user is required to reset their PIN the next time they log on. $false The user isn't required to reset their PIN the next time they log on.	Field Name: PinExpired Type: Boolean
SIPResourceIdentifier		The SIPResourceIdentifier parameter specifies the SIP address or E.164 address for the user. This property is compared to the URI type defined on the UM dial plan.	Field Name: SIPResourceIdentifier Type: String
WhenCreatedUTC			Field Name: WhenCreatedUTC Type: String Format: date-time
SendWelcomeMail		PARAMVALUE: $true \| $false	Field Name: SendWelcomeMail Type: Boolean
AnonymousCallersCanLeaveMessages		The AnonymousCallersCanLeaveMessages parameter specifies whether diverted calls without a caller ID are allowed to leave a message.	Field Name: AnonymousCallersCanLeaveMessages Type: Boolean
CallAnsweringAudioCodec		The CallAnsweringAudioCodec parameter specifies the audio codec used to encode voice mail messages left for the user. The audio codec used is the audio codec set on the UM dial plan. The default value is Mp3.	Field Name: CallAnsweringAudioCodec Type: String
WhenCreated			Field Name: WhenCreated Type: String Format: date-time
PlayOnPhoneEnabled		The PlayOnPhoneEnabled parameter specifies whether a user can use the Play on Phone feature to listen to voice messages. The default value is $true.	Field Name: PlayOnPhoneEnabled Type: Boolean
AutomaticSpeechRecognitionEnabled		The AutomaticSpeechRecognitionEnabled parameter specifies whether to enable Automatic Speech Recognition (ASR) for the UM mailbox. Valid values are: $true ASR is enabled for the mailbox. This is the default value. ASR is available only if the user's specified preferred language is installed. $false ASR is disabled for the mailbox.	Field Name: AutomaticSpeechRecognitionEnabled Type: Boolean
ServerLegacyDN			Field Name: ServerLegacyDN Type: String
	UMAddresses		Field Name: UMAddresses.[n] Type: Array
ExchangeVersion			Field Name: ExchangeVersion Type: String
	AccessTelephoneNumbers		Field Name: AccessTelephoneNumbers.[n] Type: Array
CallAnsweringRulesEnabled		The CallAnsweringRulesEnabled parameter specifies whether users can configure or set up Call Answering Rules for their accounts. The default value is $true.	Field Name: CallAnsweringRulesEnabled Type: Boolean
PhoneNumber		This parameter is available only in the cloud-based service. The PhoneNumber parameter specifies whether to assign a phone number to a UM-enabled user. This is only used for E.164 consumer dial plans.	Field Name: PhoneNumber Type: String
DomainController		This parameter is available only in on-premises Exchange 2016. 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, dc01.contoso.com.	Field Name: DomainController Type: String
SamAccountName			Field Name: SamAccountName Type: String
Pin		The PIN parameter specifies the value for the initial PIN that's used for the UM mailbox. The PIN is checked against the UM mailbox policy rules. The PIN value must be from 4 through 24 numeric characters. If you don't use this parameter, a system-generated PIN is sent to the user. By default, the PIN generated by the system contains six numeric characters.	Field Name: Pin Type: String
ObjectCategory			Field Name: ObjectCategory Type: String
IsValid			Field Name: IsValid Type: Boolean
PhoneProviderId		This parameter is available only in the cloud-based service. The PhoneProviderId parameter specifies the user's phone number and mobile service provider. This information is used to provide custom call forwarding and cancelling voice mail setup instructions based on the mobile phone provider.	Field Name: PhoneProviderId Type: String
UMDialPlan			Field Name: UMDialPlan Type: String
WhenChanged			Field Name: WhenChanged Type: String Format: date-time
WhenChangedUTC			Field Name: WhenChangedUTC Type: String Format: date-time
FaxEnabled		The FaxEnabled parameter specifies whether a user is allowed to receive incoming faxes.	Field Name: FaxEnabled Type: Boolean
ObjectState			Field Name: ObjectState Type: String
MissedCallNotificationEnabled		The MissedCallNotificationEnabled parameter specifies whether to send missed call notifications. When you're integrating Unified Messaging and Lync Server or Skype for Business Server, missed call notifications aren't available to users who have mailboxes located on Exchange 2010 Mailbox servers. A missed call notification is generated when a user disconnects before the call is sent to a Mailbox server.	Field Name: MissedCallNotificationEnabled Type: Boolean
Guid			Field Name: Guid Type: String
Id			Field Name: Id Type: String
	UMDtmfMap		Field Name: UMDtmfMap.[n] Type: Array

Model: device/exchangeonline/UMMailbox

Model Details: device/exchangeonline/UMMailbox