Troubleshooting connection problems with Office Communicator can be a hard thing to do.
Debugging tracelogs, eventlogs or using the snooper tool from the resourcekit are possible ways the detect connection problems.

The Office Communicator 2007 R2 version has a very useful new function to help you find possible problems. When you holding the CTRL key and right click the Communicator icon you will notice a extra option “Configuration Information”. When selecting this option a dialog box opens with connection information.
 

Source: http://communicationsserverteam.com/archive/2009/04/08/400.aspx

Comments are closed.