Read them
here to find out how to enable VGA-quality webcam conferencing, troubleshoot presence status problems and a few other good nuggets of information.
For better presence support in Office 2007, you will want to request, download and install KB
936864.
Although not required, an Outlook 2007 update rollup is also available at KB
939184.
One interesting aspect of Outlook rollup update is the fact that it looks as if Exchange 2007 SP1 is going to support 'advertising' the autodiscovery features with DNS SRV records, much like LCS/OCS have done in the past and present for autodiscovery.
One registry setting that seems to be particularly helpful when migrating clients from LCS 2005 to OCS 2007, is this one mentioned in the release notes:
ISSUE: If a user’s e-mail address, as entered into an Outlook e-mail, cannot be resolved to a SIP address in the Outlook Address Book or through Office Communicator, then presence cannot be retrieved for that user.
RESOLUTION: Set the SetOnlineStatusLevel registry key to allow Outlook to make a call to Microsoft Exchange to help resolve the SIP address for users. Setting this key can help particularly when the user’s Exchange address (x400/X500) is in the e-mail.
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Outlook\IM] "SetOnlineStatusLevel"=dword:00000003
