OCS R2 XMPP Gateway Released
Microsoft is releasing the Microsoft Office Communications Server 2007 R2 XMPP Gateway at no additional licensing cost; it allows basic presence sharing and instant messaging (IM) with Extensible Messaging and Presence Protocol networks Cisco Jabber and Google Talk. For Office Communications Server customers, this means Cisco Jabber and Google Talk users can now be part of Office Communications Server IM contacts.
Starting today, the Microsoft Office Communications Server 2007 R2 XMPP Gateway can be downloaded here, while a video that explains how the Gateway works can be viewed
https://www.microsoft.com/presspass/features/2009/oct09/10-01ucinterop.mspx