Settings Information for Communicator 2007 R2
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
For details about Group Policy settings and port range registry key settings, see Office Communicator 2007 R2 Group Policy Settings and Media Port Range Registry Keys.