Check out the NextHop UC Blog Roll at http://technet.microsoft.com/en-us/office/ocs/ee410018.aspx . From their site its “Your one-stop source for blog highlights and links from dozens of the very best blogs about Unified Communications.”

This is the one week reminder that the scheduled additional IP Address is on track for implementation on Friday, March 26, 2010. For organizations restricting this traffic to specific IP addresses the updated list in the KB below MUST be in place by March...