Datasheet

Office Communications Server 2007 R2 Product Overview – v 2009.1.30 46
switched telephone connections to the customer premises, many times saving considerable expense in
both the service and in operations, administration and management.
This SIP trunking capability available in Office Communications Server 2007 R2 is a direct SIP connection
between Mediation Server and an IP Telephony Service Provider (ITSP). The Unified Communications
Open Interoperability Program (UCOIP) from Microsoft qualifies the SIP trunking service provided by
ITSPs for use with Office Communications Server 2007 R2. For details, see
http://technet.microsoft.com/UCOIP.
Reduce communication infrastructure management costs
Simplified setup
Familiar user interfaces and administration promote faster user adoption and IT rollout of new
capabilities across all communications modes, instant messaging, presence, conferencing, voice, and
telephony.
Server installation choices
In order to provide the most flexibility between ease of use and scale, there are two recommended
configurations for deployment, the Standard Edition configuration and the Enterprise Edition
consolidated configuration.
Standard Edition
Standard Edition server hosts all necessary services on a single server (see Figure 55). Because it requires
a minimal hardware investment and minimal management overhead, the Standard Edition configuration
is ideal for small and medium-sized businesses and for branch offices. It is intended for deployments
with fewer than 5,000 users either in total or at a particular location where high availability is not a
requirement.
Figure 55