We are excited to announce changes to the Office Communications Server Public IM Connectivity (PIC) license that provides instant messaging and presence federation to the Windows Live, AOL and Yahoo! public IM networks. Starting October 1, 2009, the following Read More

  Summary:   February 3, America Online will be performing scheduled maintenance that will impact SIP Access Gateways during the following maintenance window:   Confirmed Maintenance Start time:  2009-02-03 04:00 ET Projected Read More

From ScottOs' blog - http://blogs.msdn.com/scottos/archive/2008/12/05/office-communicator-clients-cannot-communicate-with-contacts-homed-on-yahoo-messenger-network.aspx   Summary: Yahoo! will be undergoing an emergency maintenance from 4:30pm Read More

  Scott Oseychik blogged about the AOL update for the root authority and where to get the update for your LCS and OCS Edge Servers. http://blogs.msdn.com/scottos/archive/2008/12/02/office-communicator-clients-cannot-communicate-with-contacts-homed-on-aol.aspx Read More