Chapter Objectives

Upon completing this chapter, you will be able to configure both the Cisco IOS Catalyst and the Cisco CatOS switches to support Cisco IP Phones, third-party IP phones, and software-based phones, and you will be able to meet these objectives:

■ Describe the role and features of Cisco LAN switches in a Cisco Unified Communications (UC) solution.

■ Describe how power can be provided to IP phones by Cisco LAN switches.

■ Configure Cisco LAN switches to provide power to IP phones.

■ Describe how voice VLAN support can be provided to IP phones that have a PC attached to their PC port.

■ Describe why allowed VLANs on trunk ports should be limited.

■ Describe how to configure voice VLANs in Cisco IOS LAN switches.

■ Describe how to configure voice VLANs in Cisco CatOS LAN switches.

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