Cisco 7906G Administration Manual page 73

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Table 2-3 Cisco Unified IP Phone Startup Process
Step
1. Obtaining Power
from the Switch.
2. Loading the Stored
Phone Image.
3. Configuring VLAN.
4. Obtaining an IP
Address.
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
OL-11515-01
Description
If a phone is not using external power, the switch
provides in-line power through the Ethernet cable
attached to the phone.
The Cisco IP Phone has non-volatile Flash
memory in which it stores firmware images and
user-defined preferences. At startup, the phone
runs a bootstrap loader that loads a phone image
stored in Flash memory. Using this image, the
phone initializes its software and hardware.
If the Cisco IP Phone is connected to a Cisco
switch, the switch next informs the phone of the
voice VLAN defined on the switch port. 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 a third-party switch is used and VLANs are
configured, the VLAN on the phone must be
manually configured.
If the Cisco 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.
Understanding the Phone Startup Process
Related Topics
See the "Providing
Power to the
Cisco Unified IP Phone
7906G and 7911G"
section on page
See the "Resolving
Startup Problems"
section on page
See the "Resolving
Startup Problems"
section on page
See the "Network
Configuration Menu"
section on page
See the "Resolving
Startup Problems"
section on page
See the "Network
Configuration Menu"
section on page
See the "Resolving
Startup Problems"
section on page
2-4.
9-2.
9-2.
4-7.
9-2.
4-7.
9-2.
2-9