Office Communication Server 2007 has a number of port requirements that are specific to the feature that you will be deploying. The following diagram breaks out the required ports based on the server role you are deploying.
Overview
The Microsoft Office Communications Server 2007 Resource Kit Tools provide a set of deployment and technical reference information for Microsoft Office Communications Server 2007. The set of tools and documentation in the Resource Kit Tools can be used as a complement to the Microsoft Office Communications Server 2007 documentation or as stand-alone tools.
The Office Communication Server 2007 Planning Guide provides loose guidelines on infrastructure sizing. These are only guidelines and not hard limits, except that an Enterprise Pool will only support up to 125,000 users.
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