Specifications

Chapter 3 Setting Up the Cisco Unified Wireless IP Phone 7921G
Understanding the Phone Startup Process
3-28
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
4. Configuring IP
network
If the unified IP phone is using DHCP to obtain
an IP address, the phone queries the DHCP
server to obtain one. If you are not using DHCP
in your network, you must assign a static IP
address to each phone locally.
In addition to assigning an IP address, the
DHCP server directs the unified IP
phone to a
TFTP server. If the phone has a statically
defined IP address, you must configure the
TFTP server IP address locally on the phone; the
phone then contacts the TFTP server directly.
• Configuring DHCP
Settings, page 5-8
• Disabling DHCP,
page 5-8
• Resolving Startup and
Connectivity
Problems, page 9-1
5. Downloading Load
ID
The unified IP phone checks to verify that the
proper firmware is installed or if new firmware
is available to download.
Cisco Unified CallManager informs devices
using.cnf or .cnf.xml format configuration files
of their load ID. Devices using .xml format
configuration files receive the load ID in the
configuration file.
• Phone Configuration
Files and Profile
Files, page 2-25
6. Downloading config
file
The TFTP server has configuration files and
profile files. A configuration file includes
parameters for connecting to Cisco
Unified
CallManager and information about
which image load a phone should be running. A
profile file contains various parameters and
values for phone and network settings.
• Configuring an
Alternate TFTP
Server, page 5-10
• Phone Configuration
Files and Profile
Files, page 2-25
• Resolving Startup and
Connectivity
Problems, page 9-1
Table 3-6 Cisco Unified Wireless IP Phone Startup Process (continued)
Step Description Related Topics