Providing Power to the Cisco Unified IP Phones 7906G and 7911G
Providing Power to the
Cisco Unified IP Phones 7906G and 7911G
Power Outage
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
2-4
Chapter 2
Data traffic to and from the PC connected to the switch through the access
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port of the IP phone (native VLAN, 7911G only)
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 in which 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/univercd/cc/td/doc/product/lan/index.htm
Related Topics
Understanding the Phone Startup Process, page 2-7
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Network Configuration Menu, page 4-7
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The Cisco Unified IP Phones 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 Outage, page 2-4
•
Power Guidelines, page 2-5
•
•
Obtaining Additional Information about Power, page 2-5
Your accessibility to emergency service through the phone is dependent on the
phone being powered. If there is an interruption in the power supply, Service and
Emergency Calling Service dialing will not function until power is restored. In the
case of a power failure or disruption, you may need to reset or reconfigure
equipment before using the Service or Emergency Calling Service dialing.
Preparing to Install the Cisco Unified IP Phone on Your Network
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