Cisco 7961G - IP Phone VoIP Administration Manual page 70

Understanding the Phone Startup Process
Table 2-4 Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE 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 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager
2-10
Chapter 2
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 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.
Preparing to Install the Cisco Unified IP Phone on Your Network
Related Topics
• Adding Phones to
the Cisco
Unified CallManag
er Database,
page 2-12.
Resolving Startup
•
Problems,
page 9-2.
Resolving Startup
Problems, page 9-2.
Network
•
Configuration
Menu, page 4-7.
Resolving Startup
•
Problems,
page 9-2.
Network
•
Configuration
Menu, page 4-7.
Resolving Startup
•
Problems,
page 9-2.
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