Filter
Top Products
2-11
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 3.3 or Later
OL-3930-02
Chapter 2 Preparing to Install the Cisco Wireless IP Phone 7920 on Your Wireless Network
Understanding the Phone Startup Process
4. Configuring IP
network
If the Cisco Wireless IP Phone 7920 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 Cisco IP Phone to a
TFTP Server. If the phone has a statically
defined IP address, you must configure the
TFTP server locally on the phone; the phone
then contacts the TFTP server directly.
• Modifying DHCP
Settings, page 5-7
• Configuring Static
Settings, page 5-9
• Resolving Startup and
Connectivity
Problems, page 9-2
5. Downloading Load
ID
The Cisco Wireless IP Phone 7920 checks to
verify that the proper firmware is installed or if
new firmware is available to download.
Cisco 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.
• Understanding Phone
Configuration Files
and Profile Files,
page 2-12
6. Downloading
config file
The TFTP server has configuration files and
profile files. A configuration file includes
parameters for connecting to
Cisco 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 TFTP
Options, page 5-13
• Resolving Startup and
Connectivity
Problems, page 9-2
7. Connecting to
Cisco CallManager
The configuration file defines how the
Cisco IP Phone communicates with
Cisco CallManager. After obtaining the file
from the TFTP server, the phone attempts to
make a TCP connection to the highest priority
Cisco CallManager on the list.
• Interacting with
Cisco CallManager,
page 2-8
• Resolving Startup and
Connectivity
Problems, page 9-2
Table 2-1 Cisco IP Phone Startup Process (continued)
Step Configuration Related Topics