Providing Power To The Cisco Unified Ip Phone 7906G And 7911G - Cisco 7906G Administration Manual

Providing Power to the Cisco Unified IP Phone 7906G and 7911G

Note
Providing Power to the Cisco Unified IP Phone
7906G and 7911G
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
2-4
Chapter 2
Data traffic to and from the PC connected to the switch through the access
•
port of the IP phone (native VLAN)
Isolating the phones on a separate, auxiliary VLAN improves the quality of the
voice traffic and allows a large number of phones to be added to an existing
network where there are not enough IP addresses for each phone.
Do not configure the switch port for VLAN 1 due to a limitation with the Cisco
Unified IP Phone 7911. When the switch port is configured to VLAN 1, the phone
forwards tagged packets in VLAN 1 to the switch.
For more information, refer to the documentation included with a Cisco switch.
You can also access related documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/index.htm
Related Topics
Understanding the Phone Startup Process, page 2-8
•
Network Configuration Menu, page 4-7
•
The Cisco Unified IP Phone 7906G and 7911G can be powered with external
power or with Power over Ethernet (PoE). External power is provided through a
separate power supply. PoE is provided by a switch through the Ethernet cable
attached to a phone.
These sections provide more information about powering a phone:
Power Guidelines, page 2-5
•
Power Outage, page 2-6
•
Obtaining Additional Information about Power, page 2-5
•
Preparing to Install the Cisco Unified IP Phone on Your Network
OL-11515-01