To enable user accounts

1. Log on as a member of the RTCUniversalUserAdmins group to an Office Communications Server or another server that is joined to an Active Directory domain that has the Office Communications Server 2007 administrative tools installed.
   
   
2. Click Start, and then click Run.
   
   
3. In the Openbox, type dsa.msc, and then click OK.
   
   
4. Navigate to the Usersfolder or other organization unit where your users reside.
   
   
5. For each user whom you want to enable for Office Communications Server, right-click the user name, and then click Enable users for Communications Server.
   
   
6. On the Welcome to the Enable Office Communications Server Users Wizardpage, click Next.
   
   
7. On the Select Server or Poolpage, select the server from the list, and then click Next.
   
   
8. On the Specify Sign-in Namepage, specify how to generate the Session Initiation Protocol (SIP) address by doing one of the following:
   
   
   • To generate the SIP address from the users e-mail address, click Use users e-mail address. Select this option only if you have configured an e-mail address for your users.
     
     
   • To generate the SIP address from the users principal name, click Use userPrincipalName.
     
     
   • To generate the SIP address using the users full name, click Use the format: <first name>.<lastname>@, and then select the Office Communications Server domain.
     
     
   • To generate the SIP address using the users SAM account, click Use the format: <SAMAccountName>@, and then select the Office Communications Server domain.
     
     

     Note:
     If you need to configure SIP addresses using a different format from the options presented, you can enable users individually or use the Office Communications Server 2007 Software Development Kit to enable a group of users.

9. Click Next.
   
   
10. Verify settings, and then click Next.
    
    
11. Verify that the user or users were enabled successfully, and then click Finish.