Cisco 3951 Administration Manual page 48

Understanding the Phone Startup Process
Table 2-3 Cisco Unified IP Phone Startup Process (continued)
Step
3. Configuring VLAN
4. Obtaining an IP
Address
5. Accessing a TFTP
Server
6. Requesting the
Configuration File
Cisco Unified SIP Phone 3951 Administration Guide for Cisco Unified CallManager 5.1
2-8
Chapter 2
Description
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.
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.
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 enter information about 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 has configuration files, which
define parameters for connecting to
Cisco Unified CallManager and other informa-
tion for the phone.
Preparing to Install the Cisco Unified IP Phone on Your Network
Related Topics
Configuration Menus
•
on the Cisco Unified
IP Phone, page 4-3.
Resolving Startup
•
Problems, page 7-1.
Configuration Menus
•
on the Cisco Unified
IP Phone, page 4-3.
Resolving Startup
•
Problems, page 7-1.
Configuration Menus
•
on the Cisco Unified
IP Phone, page 4-3.
Resolving Startup
•
Problems, page 7-1.
• Adding Phones to the
Cisco
Unified CallManager
Database, page 2-9.
Resolving Startup
•
Problems, page 7-1.
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