Obtaining Power From The Switch; Loading The Stored Phone Image; Configuring Vlan; Obtaining An Ip Address - Cisco 7960 Administration Manual

Understanding the Phone Startup Process

Obtaining Power from the Switch

Loading the Stored Phone Image

Configuring VLAN

Obtaining an IP Address

Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
2-4
Accessing TFTP Server, page 2-5
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Requesting the Configuration File, page 2-5
•
Contacting Cisco CallManager, page 2-5
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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). See the
"Providing Power to the Cisco IP Phone" section on page 2-7
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 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.
If the Cisco 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 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.
Chapter 2 Preparing to Install the Cisco IP Phone on Your Network
for details.
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