Understanding The Phone Startup Process - Cisco 7931G - Unified IP Phone VoIP Administration Manual

Understanding the Phone Startup Process

Understanding the Phone Startup Process
Table 2-3 Cisco Unified IP Phone Startup Process
Process Step
1. Obtaining Power
from the Switch
2. Loading the Stored
Phone Image
3. Configuring VLAN
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 6.0
2-8
Chapter 2
For more information about how the phone interacts with the TFTP server, refer
to the Cisco Unified Communications Manager System Guide, "Cisco TFTP"
chapter.
When connecting to the VoIP network, the Cisco Unified IP Phone goes through
a standard startup process, as described in
configuration, not all of these process steps may occur on your Cisco
Unified IP Phone.
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 Unified 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 Unified 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.
Preparing to Install the Cisco Unified IP Phone on Your Network
Table 2-3. Depending on your network
Related Topics
See the "Providing
Power to the Phone"
section on page 2-4.
See the "Resolving
Startup Problems"
section on page 9-2.
See the "Resolving
Startup Problems"
section on page 9-2.
See the "Network
Configuration Menu"
section on page 4-7.
See the "Resolving
Startup Problems"
section on page 9-2.
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