Chapter Objectives

Upon completing this chapter, you will understand the CUCM deployment and redundancy options and be able to meet the following objectives:

■ Identify the supported CUCM deployment options.

■ Describe the characteristics of a CUCM single-site deployment, and identify the reasons for choosing this deployment option.

■ Describe the characteristics of a CUCM multisite deployment with centralized call processing, and identify the reasons for choosing this deployment option.

■ Describe the characteristics of a CUCM multisite deployment with distributed call processing, and identify the reasons for choosing this deployment option.

■ Describe the characteristics of a CUCM multisite deployment with clustering over the WAN, and identify the reasons for choosing this deployment option.

■ Explain how call-processing redundancy is provided in a CUCM cluster, and identify the requirements for different redundancy scenarios.

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