Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1
Topic Last Modified: 2007-08-21

Use the UM Address (Extension) dialog box to create or edit an Exchange Unified Messaging (UM) proxy address (EUM proxy address) for a Unified Messaging-enabled user. This dialog box appears when you perform one of the following tasks on the E-Mail Addresses tab of a mailbox user's property page:

Address/Extension

Use this box to type the number of the new UM extension.

Dial plan (Phone context)

Click Browse to open the Select Dial Plan dialog box. In this dialog box, select the dial plan that you want to specify for this extension, and then click OK.