Nortel Networks NN43001-121 manual Enterprise Voice components OCS

Enterprise Voice 17

•originate and receive Public Switched Telephone Network (PSTN) calls from the Office Communicator (OC) 2007 soft client when away from the office.

•take advantage of existing business telephony features on the CS 1000.

Enterprise Voice

This section describes the Office Communications Server (OCS) 2007 Enterprise Voice solution. The Nortel Converged Office feature integrates the OCS 2007 with the CS 1000. For a description of the integrated network from the CS 1000 perspective, see "Network configuration" (page 36). Enterprise Voice is Microsoft’s software-powered VoIP solution, a SIP-based implementation of IP telephony for the enterprise that does not rely on proprietary hardware investments. Enterprise Voice is a full-featured VoIP solution that includes connectivity to the PSTN gateways and interoperation with the CS 1000. Enterprise Voice, IM, group IM, enhanced presence, and audio-video conferencing together constitute the Microsoft Unified Communications solution.

The following figure shows the OCS 2007 Enterprise Voice components extracted from the overall OCS 2007 architecture. COMO refers to Communicator Mobile.

Figure 1

Enterprise Voice components - OCS 2007

When a user calls from an Enterprise Voice client by dialing or clicking on a contact name or number in OC 2007 or Outlook:

•the OCS Front End server normalizes the number to the E.164 format, and invokes routing rules based on the location profile and user policy, and directs the call to the appropriate Mediation Server

Nortel Communication Server 1000

Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

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