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Remove an Extension Number for a UM-Enabled User

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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 remove extension numbers from 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

Use the EMC to remove 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.

  1. In the console tree, navigate to Recipient Configuration > Mailbox.

  2. In the result pane, select the mailbox for which you want to remove an extension number.

  3. In the action pane, under the mailbox name, click Properties.

  4. In <Mailbox User> Properties, click the E-Mail Addresses tab.

  5. To remove an existing EUM proxy address, select the EUM proxy address, and then click Remove icon.

  6. Click Apply, and then click OK.

Use the Shell to remove 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 removes the extension number 12345 from the mailbox of Tony Smith, a UM-enabled user.

$mbx = Get-Mailbox tony.smith
$mbx.EmailAddresses.Item(1) -="eum:12345;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 remove the extension number, you may also want to:

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