Cisco OL-11953-01 - Manual (Page 11)

2-11
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.0
OL-11953-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
3. Configuring VLAN If the Cisco Unified IP Phone is connected to a
Cisco Catalyst switch, the switch next informs the
phone of the voice VLAN defined on the switch.
The phone needs to know its VLAN membership
before it can proceed with the Dynamic Host
Configuration Protocol (DHCP) request for an IP
address. • Network
Configuration
Menu, page 4-7
.
• Resolving Startup
Problems,
page 9-2
.
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. • Network
Configuration
Menu, page 4-7
.
• Resolving Startup
Problems,
page 9-2
.
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.
• Network
Configuration
Menu, page 4-7
.
• Resolving Startup
Problems,
page 9-2
.
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 Communi
cations Manager
Security Guide,
“Configuring the Cisco
CTL Client” chapter.
Table 2-4 Cisco Unified IP Phone Startup Process (continued)
Step Description Related Topics