Nortel Networks NN43001-121 - Manual (Page 61)

General requirements 61
Figure 18
Signaling security with TLS
Dial Plan considerations
Nortel Converged Office is comprised of the following two components:
• SIP CTI Services provides CS 1000 native TR/87 support to enable the
Remote Call Control functionality available with Office Communicator.
• Telephony Gateway and Services allows you to originate and receive SIP
calls (for example, VoIP and Computer calls) from Office Communicator.
Whether you choose one or both components for deployment, an Office
Communicator is essential. This allows the existing dial plan (that users
have become accustomed to with their existing telephony interfaces) to
extend seamlessly to the Office Communicator client for either call type.
This includes all existing CS 1000 dial plan features such as Coordinated
Dial Plan (CDP) and Uniform Dial Plan (UDP), and Group Dial Plan.
The following lists summarize the features that contribute to the dial plan
configuration for the Converged Office feature from the perspective of calls
originated and received from Office Communicator.
Computer (SIP) Calls
• Number format entered in Active Directory or Office Communicator
• Office Communications Server Address Book Service Normalization
rules
• Network Redirect Service (NRS)
• CS 1000 SIP Gateway configuration
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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