Cisco OL-23092-01 User Manual
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Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
OL-23092-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding Interactions with Other Cisco Unified IP Communications Products
Understanding Interactions with Other Cisco
Unified IP Communications Products
To function in the IP telephony network, the Cisco Unified IP Phone must be connected to a networking
device, such as a Cisco Catalyst switch. You must also register the Cisco Unified IP Phone with a
Cisco Unified Communications Manager system before sending and receiving calls.
This section includes these topics:
•
•
Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page 2-3
Understanding How the Cisco Unified IP Phone Interacts with Cisco
Unified Communications Manager
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. Cisco Unified 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 Cisco Unified Communications Manager to work with the IP devices
described in this chapter, refer to Cisco Unified Communications Manager Administration Guide, Cisco
Unified Communications Manager System Guide, and Cisco Unified Communications Manager Security
Guide.
For an overview of security functionality for the Cisco Unified IP Phone, see
Understanding Security
Features for Cisco Unified IP Phones, page 1-13
.
Note
If the Cisco Unified IP Phone model that you want to configure does not appear in the Phone Type
drop-down list in Cisco Unified Communications Manager Administration, go to the following URL and
install the latest support patch for your version of Cisco Unified Communications Manager:
Related Topic
•
Telephony Features Available for the Phone, page 5-1