The recommended sequence of steps for deploying Enterprise Voice varies according to whether you plan to deploy Office Communications Server 2007 R2 with Private Branch Exchange (PBX) integration and, if not, whether you intend to use Exchange Server 2007 SP1 Unified Messaging to provide call answering, Outlook Voice Access, and auto-attendant services
Choosing Your Deployment
Path
The following figure summarizes the recommended deployment path for Enterprise Voice:
