MaxCategorySubscriptions is the system-wide parameter that determines how many users can be watching a given user for presence changes. By default, this limit is 1000 subscriptions. When a given user reaches this limit (more than 200 users are ‘watching’...

Customers who have deployed Office Communications Server 2007 R2 Group Chat Server often use it for mission-critical business purposes. Such customers require the ability to maintain Office Communications Server 2007 R2 Group Chat Server communications...

It goes without saying that monitoring is a best practice – be it a database or an application that sits at a level higher, any engineering group worth their salt will monitor for health. But what constitutes health?  For OCS R2, a variety of technologies...

One challenge that can arise for organizations moving from LCS 2005 to OCS R2 is that the replacement for the desktop and application sharing functionality within R2 leverages a different toolset.  In LCS 2005, desktop sharing was powered by NetMeeting...