Microsoft has released an update for Microsoft Office Communicator 2007

This download contains an update for Microsoft Office Communicator 2007

Issues that this hotfix package fixes
This cumulative update fixes the following issues:
2300306 Office Communicator 2007 crashes when you enable Call Admission Control and then try to log in
2536689 The presence status does not change from "Away" to "Available" automatically in Office Communicator 2007

This update package also includes the following previously released updates:
2268858 The last dialed telephone number for a contact changes to "Communicator Call" after you start Communicator 2007 R2 or Communicator 2007
2172695 "Communicator could not retrieve calendar or Out of Office information from Exchange Web Services" error message when you use Office Communicator 2007 with your mailbox in Exchange Server 2010
978164 A conversation window opens unexpectedly when you press ENTER in the Search box in Office Communicator 2007 or Office Communicator 2007 R2
982227 Office Outlook does not automatically resolve the contact when you schedule a meeting with the contact in Office Communicator 2007
978164 A conversation window opens unexpectedly when you press ENTER in the Search box in Office Communicator 2007
979145 The Office Communicator 2007 user interface pops up for all users who log on to a terminal server that is running Windows Server 2008
971826 Error events occur when you disconnect a computer that is running Communicator 2007 from a network: "Event ID: 3" or "Event ID: 7"
971829 Enterprise administrators cannot both set and enforce the Outlook integration settings in Personal Information Manager (PIM) to turn off Outlook integration for Office Communicator 2007
961595 Your presence status is unexpectedly set to "Away" when you use the Remote Desktop Client to access a computer that is running Communicator 2007, and you cannot change this status
961598 Office Communicator 2007 causes an access violation in a Citrix environment
968490 Images that are specified in the Tabs.xml file do not load consistently on Communicator 2007 tabs
968505 You cannot transfer a call when you use Office Communicator version 2.0.6362.97 or later
968506 A Communicator 2007 client crashes when it receives a call from another Communicator client
968507 Sporadic failures experienced while performing Messaging API (MAPI) tasks when Office Communicator 2007 is used on the same computer as Office 2003 or Office 2007
960423 Office Communicator 2007 cannot display Chinese characters in URLs when the EnableURL registry value is enabled
960424 You cannot prevent Office Communicator 2007 from controlling the call forwarding settings
942566 Error message in Communicator 2007: "An error occurred while trying to start the conference" or "This message was not delivered to all participants"
942568 The text alignment in an e-mail message may be incorrect in Communicator 2007
942569 The Russian language name is spelled incorrectly in the list of available languages in Communicator 2007
942570 The telephone number in a Communicator 2007 pop-up window for an incoming call has an incorrect text direction when the language is set to Arabic or to Hebrew
942671 A new policy is available to specify the Contacts store that Communicator 2007 uses
942674 Unrecognizable characters appear in the date field of the display on a Unified Communications device that is used with Communicator 2007
942857 Menu items are truncated in the Hebrew version of Communicator 2007
943066 Presence status does not change from "In a Meeting" to "Available" in Communicator 2007
943223 Communicator 2005 client computers may send many DNS queries for the name of the Live Communications Server 2005 pool
944687 Error message when you try to change an IM conversation into a multiparty conference in Communicator 2007: "Your attempt to start a conference was unsuccessful."
945079 The call is on hold for both the transferor and the transferee when a call transfer fails in Communicator 2007
945287 You cannot type a special character in the password box in Communicator 2007
945542 Error message when you send an instant message to a distribution group that contains more than 100 members in Communicator 2007: "GroupName is too large to display"
945543 Communicator 2007 does not release cached person objects after you search for contacts
945545 The notification sound does not play in Communicator 2007 when you change the notification sound to a .wav file that resides in the Media folder
945546 Communicator 2007 appends the telephone number to a user name when a user who does not have an SIP account uses custom tabs
945678 The translation of the word "free" is incorrect in the Polish version of Communicator 2007
945856 Description of the update that is available to change how Communicator 2007 starts after you install the program
945858 On a computer that has Communicator 2007 installed, you do not hear Dual Tone Multi-Frequency tones when you use a device’s dial pad to enter a telephone number
945859 When you start Microsoft Office Communicator 2007, Office Communicator causes an access violation
948120 An audio conference or a video conference fails in Communicator 2007 when you try to invite a new participant to create a multiparty conference
948159 Error message in Communicator 2007 if the Outlook profile file name contains non-English characters: "There was a problem connecting to Microsoft Office Outlook"
948733 Error message when you try to shut down a client computer that is running Office Communicator 2007: "The data file 'Mailbox - user' was not closed properly"
948734 On a client computer that is running Windows 2000 with Service Pack 4, you may notice that the volume is fading during the audio call after you start an audio call from Office Communicator 2007
948735 You cannot integrate Communicator 2007 together with Office 2000
948737 A Communicator 2007 user hears a long dial tone mixed with the streaming audio if the user takes a USB telephony device handset off the hook and then uses the device to stream audio from another application
949498 Error message when a Communicator 2007 user sends a message that contains only Japanese characters to Communicator 2005 users: "Username cannot receive message in the format you used"
949894 Presence functions are disabled in Communicator 2007 when you use a time zone that includes a negative partial hour on a client computer
950492 You cannot manually change your status from "Away" in Communicator 2007 when you use a portable computer to connect to a remote computer
951868 Registry settings for certain protocols are overwritten, and Communicator 2007 becomes the default application for these protocols when you log on to Communicator 2007
951870 Event IDs 8239 and 8206 are logged when you schedule and then cancel a meeting in Communicator 2007
951871 The presence status changes to Away for all Terminal Server users when an administrator locks the desktop or lets the screen saver run in Communicator 2007
954642 Error message when you restart Outlook after you log off Windows without exiting Communicator 2007: "A data file did not close properly the last time it was used and is being checked for problems"
954647 Communicator 2007 does not support non-DID telephone numbers
954648 How to disable instant messaging in Communicator 2007
954649 When you use Communicator 2007 together with a GN9350 headset to make a call, the call ends when you mute the microphone
954650 The retry logic that Communicator 2007 uses to download address book files changes after you install the Communicator 2007 update package that is dated October 24, 2008
954651 Communicator 2007 downloads the full offline address book every 30 days
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
957793 A Communicator 2007 client is unusually slow at startup
958659 When you use telephony mode=4, you can only manually set the URI information in Communicator 2007

  Microsoft Office Communicator 2007 Hotfix KB 2300255