Providing Power To The Cisco Unified Ip Phone - Cisco 7941G - Unified IP Phone VoIP Administration Manual

Providing Power to the Cisco Unified IP Phone

Providing Power to the Cisco Unified IP Phone
Note
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
2-4
Chapter 2
You can resolve these issues by isolating the voice traffic onto a separate VLAN.
The switch port that the phone is connected to would be configured to have
separate VLANs for carrying:
Voice traffic to and from the IP phone (auxiliary VLAN on the Cisco Catalyst
•
6000 series, for example)
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 increases 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.
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/en/US/products/hw/switches/tsd_products_support_categ
ory_home.html
Related Topics
Understanding the Phone Startup Process, page 2-10
•
• Network Configuration Menu, page 4-7
The Cisco Unified IP Phone 7961G, 7961G-GE and 7941G, 7941G-GE 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.
When you install a phone that is powered with external power, connect the power
supply to the phone and to a power outlet before you connect the Ethernet cable
to the phone. When you remove a phone that is powered with external power,
disconnect the Ethernet cable from the phone before you disconnect the power
supply.
The following sections provide more information about powering a phone:
• Power Guidelines, page 2-5
Preparing to Install the Cisco Unified IP Phone on Your Network
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