Cisco Systems OL-23092-01 Understanding Interactions with Other Cisco Unified IP Communications Products

2-2

Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5

OL-23092-01

Chapter2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding Interactions with Other Cisco UnifiedIP Communications Products

Understanding Interactions with Other Cisco Unified IP Communications Products

To function in the IP telephony network, the CiscoUnified IP Phone must be connected to a networking

device, such as a Cisco Catalyst switch. You must also register the CiscoUnified IP Phone with a

Cisco Unified Communications Manager system before sending and receiving calls.

This section includes these topics:

•Understanding How the Cisco UnifiedIP Phone Interacts with Cisco Unified Communications

Manager, page2-2

•Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page2-3

Cisco Unified Communications Manager is an open and industry-standard call processing system.

Cisco Unified Communications Manager software sets up and tears down calls between phones,

integrating traditional PBX functionality with the corporate IP network. CiscoUnified Communications

Manager manages the components of the IP telephony system—the phones, the access gateways, and the

resources necessary for features such as call conferencing and route planning. Cisco Unified

Communications Manager also provides:

•Firmware for phones

•Authentication and encryption (if configured for the telephony system)

•Configuration, CTL, and Identity Trust List (ITL) files via the TFTP service

•Phone registration

•Call preservation, so that a media session continues if signaling is lost between the primary

Communications Manager and a phone

For information about configuring CiscoUnified Communications Manager to work with the IP devices

described in this chapter, refer to Cisco UnifiedCommunications Manager Administration Guide, Cisco

Unified Communications Manager System Guide, and Cisco Unified Communications Manager Security

Guide.

For an overview of security functionality for the CiscoUnified IP Phone, see Understanding Security

Features for Cisco Unified IP Phones, page1-13.

Note If the Cisco Unified IP Phone model that you want to configure does not appear in the Phone Type

drop-down list in CiscoUnified Communications Manager Administration, go to the following URL and

install the latest support patch for your version of CiscoUnified Communications Manager:

http://www.cisco.com/kobayashi/sw-center/sw-voice.shtml