Applies to: Exchange Online, Exchange Server 2016

This cmdlet is available in on-premises Exchange Server 2016 and in the cloud-based service. Some parameters and settings may be exclusive to one environment or the other.

Use the Get-UMCallDataRecord cmdlet to display Unified Messaging (UM) call data records for a specific UM-enabled user's mailbox.

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

Get-UMCallDataRecord -Mailbox <MailboxIdParameter> [-DomainController <Fqdn>]

This example displays the UM call data records for the UM-enabled user Tony.

Get-UMCallDataRecord -Mailbox

The Get-UMCallDataRecord cmdlet displays UM call data records for the last 90 days for a UM-enabled mailbox that you specify. Each UM call data record provides detailed information about all calls either placed to or received by the specified user. The following table details each of the properties returned:


Property Name Description


Date and time of the Mailbox server running the Microsoft Exchange Unified Messaging service that took the call in the Coordinated Universal Time (UTC) format.


Total duration of this call.

For Find Me calls, this will always be zero because the call is being transferred and won't be handled by Unified Messaging any longer.


Audio codec used for the call including G.711 or Group System Mobile (GSM).


Name of the UM dial plan handling the call.


Type of the call (localized in the user's language):

  • Call Answering Voice Message

  • Call Answering Missed Call

  • Auto Attendant

  • Subscriber Access

  • Fax

  • PlayOnPhone

  • Find Me

  • None

  • UnauthenticatedPilotNumber

  • PromptProvisioning


Phone number or address of the caller.


Phone number or address of the intended recipient of the call.


Fully qualified domain name (FQDN) of the UM IP gateway handling the call.

Network MOS (NMOS)

Mean opinion score for the network performance.


Total NMOS degradation, which is how far the NMOS reported value was from its top value for the corresponding audio codec.


Percentage that reflects the average network packet loss during the call.


Average jitter of the network.


Round trip time for Real Time Control Protocol (RTCP) statistics in milliseconds.


Average duration of packet loss during bursts during the call.

After this task is completed, a report is generated that contains UM call data records for a specific UM-enabled mailbox.

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 call data and summary reports" entry in the Unified Messaging permissions topic.


Parameter Required Type Description




The Mailbox parameter specifies the UM-enabled mailbox that UM call data records are displayed.




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,

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.