Add an Extension Number for a UM-Enabled User
Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2
When you enable a user for Unified Messaging (UM), you must define at least one extension number that Unified Messaging will use when voice mail is submitted to the user's Microsoft Exchange Server 2010 mailbox. After you enable the user for Unified Messaging, you can add extension numbers to the user's mailbox by configuring the Exchange Unified Messaging proxy address (EUM proxy address) on the user's mailbox.
Looking for other management tasks related to UM users? Check out Managing Unified Messaging Users.
Prerequisites
The existing Exchange recipient is enabled for Unified Messaging. For detailed steps, see Enable a User for Unified Messaging.
A UM dial plan has been created. For detailed steps, see Create a UM Dial Plan.
A UM mailbox policy has been created. For detailed steps, see Create a UM Mailbox Policy.
The extension number that will be assigned to the UM-enabled user is valid according to the UM dial plan associated with the UM-enabled user.
Use the EMC to add an extension number for a UM-enabled user
You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM mailboxes" entry in the Unified Messaging Permissions topic.
In the console tree, navigate to Recipient Configuration > Mailbox.
In the result pane, select the mailbox for which you want to add an extension number.
In the action pane, under the mailbox name, click Properties.
In <Mailbox User> Properties, click the E-Mail Addresses tab.
Click the drop-down arrow located next to Add, and then click EUM Address. In UM Address (Extension), in the Address/Extension box, type the extension number.
In the Dial plan (Phone context) box, click Browse to locate the dial plan for the user.
Click Apply, and then click OK.
Use the Shell to add an extension number for a UM-enabled user
You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM mailboxes" entry in the Unified Messaging Permissions topic.
This example adds an extension number for Tony Smith, a UM-enabled user.
$mbx=Get-Mailbox tony.smith
$mbx.EmailAddresses +="eum:22222;phone-context=MyDialPlan.contoso.com"
Set-Mailbox tony.smith -EmailAddresses $mbx.EmailAddresses
For more information about syntax and parameters, see Set-Mailbox or Get-Mailbox.
Other Tasks
After you add an extension number, you may also want to:
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