Much has been written about troubleshooting Microsoft Office Communicator issues. In this blog entry I wanted to highlight and simplify two steps that will help you catch most problems without having to do more time consuming troubleshooting.
1) Know Which DNS Records are Being Used by Communicator
Communicator relies heavily on DNS to figure out which OCS [...]
March 2013 Update: a good Microsoft resource I recently discovered: Resolve Exchange Free/Busy and Communicator Presence Issues.
Further to my previous posting on Office Communicator 2007 and Outlook 2007 Integration Errors, after recently trouble-shooting this problem, I have provided a check-list of all the situations I am aware of that can cause this error, and what to [...]