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Chapter 2
Preparing to Install the Cisco Unified IP Phone on Your Network
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:
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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
switch information at this URL:
http://cisco.com/en/US/products/hw/switches/index.html
Related Topics
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Providing Power to the Cisco Unified IP Phone
The Cisco Unified IP Phone 7962G and 7942G 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
Note
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:
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OL-21011-01
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)
Understanding the Phone Startup Process, page 2-7
Network Configuration Menu, page 4-5
Power Guidelines, page 2-4
Power Outage, page 2-4
Obtaining Additional Information about Power, page 2-5
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
Providing Power to the Cisco Unified IP Phone
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Troubleshooting
