Cisco CP-7911G Administration Guide - Page 58

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Cisco Unified IP Phones 7906G and 7911G • Data traffic to and from the PC connected to the switch through the access 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/en/US/products/hw/switches/tsd_products_support_categ ory_home.html Related Topics • Understanding the Phone Startup Process, page 2-8 • Network Configuration Menu, page 4-7 Providing Power to the Cisco Unified IP Phones 7906G and 7911G 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 2-5 • Power Guidelines, page 2-5 • Obtaining Additional Information about Power, page 2-6 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0 2-4 OL11954-01