Cisco OL-14587-01 - Manual (Page 9)

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Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 6.1
OL-14587-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
Step 4 Obtaining an IP Address
If the Cisco 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 static IP addresses
to each phone locally.
See the “Network Configuration Menu”
section on page 4-7 .
See the “Resolving Startup Problems”
section on page 9-2 .
Step 5 Accessing a TFTP Server
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.
Note You can also assign an alternative TFTP
server to use instead of the one assigned by
DHCP.
See the “Network Configuration Menu”
section on page 4-7 .
See the “Resolving Startup Problems”
section on page 9-2 .
Step 6 Requesting the CTL file
The TFTP server stores the certificate trust list
(CTL) file. This file contains a list of Cisco
Unified Communications Managers 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 Communications
Manager.
Refer to the Cisco Unified Communications
Manager Security Guide, “Configuring the
Cisco CTL Client” chapter.
Table 2-3 Cisco Unified IP Phone Startup Process (continued)
Process Step and Purpose Related Topics