Cisco 7906G Administration Manual page 67

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Table 2-3 Cisco Unified IP Phone Startup Process (continued)
Step
Accessing a TFTP
5.
Server.
6. Requesting the
CTL file.
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
OL-10008-01
Description
In addition to assigning an IP address, the DHCP
server directs the Cisco Unified 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.
You can also assign an alternative TFTP
Note
server to use instead of the one assigned by
DHCP.
The TFTP server stores the certificate trust list
(CTL) file. This file contains a list of
Cisco Unified CallManagers and TFTP servers
that the phone is authorized to connect to. It also
contains the certificates necessary for establishing
a secure connection between the phone and
Cisco Unified CallManager.
Understanding the Phone Startup Process
Related Topics
See the "Network
Configuration Menu"
section on page
See the "Resolving
Startup Problems"
section on page
Refer to the
Cisco Unified CallMan
ager Security Guide,
"Configuring the Cisco
CTL Client" chapter.
4-7.
9-2.
2-9