Understanding The Phone Startup Process - Cisco 7960G Administration Manual

Understanding the Phone Startup Process

Understanding the Phone Startup Process

Table 2-1 Cisco IP Phone Startup Process
Step
1. Obtaining Power
from the Switch.
Loading the Stored
2.
Phone Image.
Cisco IP Phone Administration Guide for Cisco CallManager 4.0, Cisco IP Phones 7960G/7940G
2-4
Related Topics
Understanding the Phone Startup Process, page 2-4
•
Network and Access Ports, page 3-3
•
• Network Configuration Menu Options, page 4-6
When connecting to the VoIP network, the Cisco IP Phone goes through a
standard startup process that is composed of several steps, as described in
Table 2-1. Depending on your specific network configuration, not all of these
steps may occur on your Cisco IP Phone.
Description
You can connect the Cisco IP Phone to a
Cisco Catalyst switch with one of the modules that
provides power to the phone (WS-X6348-RJ45V).
If you use this optional configuration, the phone
receives phantom power and powers up when you
connect the Cisco IP Phone to the switch. The
phone then sends Cisco Discovery Protocol (CDP)
notifications to the switch indicating that it is
ready to receive CDP packets and indicating the
power requirement for the phone. The switch
allocates power and sends it over the network
cable.
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.
Chapter 2 Preparing to Install the Cisco IP Phone on Your Network
Related Topics
• Providing Power to
the Cisco IP Phone,
page 2-8.
Resolving Startup
•
Problems,
page 8-2.
Resolving Startup
Problems, page 8-2.
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