204 Configuration4—End—Adding Exchange UMStep Action1 From the Exchange Management Console window, click onRecipient Configuration, and select Mailbox.2 Select a user. For example, Brendan McCarthy3 Right-click on the user and select Properties.Figure 79User Properties window for Exchange UM4 Click on the E-mail Addresses tab.5 Click on the Add menu and select EUM Address.6 In the UM Address (Extension) window, enter theCS1000DN@domain of the user in the Address/Extension field .For example, 2071@ocs2007a.corp.nortel.comNortel Communication Server 1000Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007NN43001-121 01.03 StandardRelease 5.0 30 April 2008Copyright © 2005–2008, Nortel Networks.