We have been having a few issues with getting the OCS Presence Indictator working correctly with Outlook 2007. When you hover over the presence jelly bean in the Preview Pane, you get ‘Presence Unknown’ even through OCS and even Sharepoint detect the correct status:
After some extensive research, most people recommend the following registry key settings:
However, this didnt seem to resolve the issue. By experimentation, we tried:
and changed the dword value to 3. The presence is now working as expected. According to the Microsoft site, this can only be set to 0, 1 or 2.
Feel free to investigate and let me know how you get on!