Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager
2-2
Cisco Unified SIP Phone 3911 Administration Guide for Cisco Unified Communications Manager
OL-14029-01
•
Determining the MAC Address for a Cisco Unified IP Phone, page 2-12
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. 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.
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 such features as call conferencing and route planning. Cisco Unified
Communications Manager also provides:
•
Firmware for phones
•
Authentication
•
Configuration file via TFTP service
•
Phone registration
•
Call preservation, so that a media session continues if signaling is lost
between the primary Cisco Unified 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 the
“Understanding Security Features for Cisco Unified SIP Phone 3911” section on
page 1-9
.
Summary of Contents for 3911
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