October 2008 Communicator Update
Description of the update for Communicator 2007: October 24, 2008
This update fixes the following issues:
958659 (http://support.microsoft.com/kb/958659/) When you use telephony mode=4, you can only manually set the URI information in Communicator 2007
957793 (http://support.microsoft.com/kb/957793/) A Communicator 2007 client is unusually slow at startup
956734 (http://support.microsoft.com/kb/956734/) The presence status of Communicator 2007 changes to "Away" for all Terminal Server users when one user locks the desktop on a Windows Server 2008-based computer
get all info here http://communicationsserverteam.com/archive/2008/10/27/311.aspx
