Nortel Networks NN43001-121 manual Dial Plan considerations, Computer SIP Calls

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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