Summary: Using Microsoft Office Communications Server 2007 R2, Federation may fail against organizations that are using Lotus Sametime. Resolution: IBM has a hotfix which addresses this issue within Lotus Sametime. More Information: Please refer the following IBM support document;...

Issue: Microsoft Office Communicator 2007 R2 in conjunction with Office Communications Server 2007 R2 would intermittently fail to communicate with AOL AIM clients via PIC. Note that this would only reproduce if your OCS 2007 R2 Edge role is running Windows Server 2008 (x64); not Windows Server...