Microsoft says the fi rst step is to determine what your key planning decisions are. What does
that mean? Basically, it means you need to do two things: Determine what features you want
in your installation and examine your business environment for specifi c needs.
54 Chapter 2 ??? Microsoft Offi ce Communications Server 2007
The basic installation of the Standard Edition server or Enterprise pool will include IM,
presence, and conferencing for users within your organization. Next, it??™s just a matter of
deciding what bells and whistles you want to add. For instance, although no additional
components are required for the Standard Edition should you want on-premises Web
conferencing, A/V conferencing, or Address Book Server, you??™ll need the Web Conferencing
Server and Web Components Server for Web conferencing, the A/V Conferencing Server for
A/V conferencing, and the Web Components Server for Address Book Server in the
Enterprise pool. If you want archiving and CDRs you??™ll need to install the Archiving and
CDR Server. External user access, federation, and public IM connectivity will require installation
of the Access Edge Server and an HTTP reverse proxy. If you want to include external users
in your Web conferencing you??™re going to need both the Web Conferencing Edge Server
and the HTTP reverse proxy, whereas A/V conferencing with external users will require an
A/V Edge Server. If you want to provide IM with presence through a browser you??™ll need
to install Communicator Web Access Server.
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