Chapter 3. Understanding Cisco IP Phones
This chapter covers the following topics:
Connecting and Powering Cisco IP Phones: To provide a centralized power system, Cisco IP phones may receive their power from a centralized source using PoE. This section discusses the different options for PoE and the selection criteria for each.
VLAN Concepts and Configuration: VLANs allow you to segment the switched network into multiple logical pieces to provide management and security boundaries between the voice and data network. This section discusses the concepts ...