OCS 2007 R2 Voice Mail
Office Communicator team blogged about some new features of Voice Mail in communicator R2 and also its integration with Outlook and Exchange UM.
Voicemail has been an important feature of PBXes for years. In Microsoft Office Communicator R2, we have continued to invest in the integration with Exchange Unified Messaging (EUM) to make it easy for you to access your Voicemails and manage your Voicemail answering options.
Read more at source: http://communicatorteam.com/archive/2009/04/06/676.aspx