Cisco 7906G Administration Guide - Page 60

Understanding Phone Configuration Files Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network • The Cisco IOS releases that support bidirectional power negotiation • Other requirements and restrictions regarding power Table 2-2 Related Documentation for Power Document Topics URL Cisco Unified IP Phone Power Injector http://www.cisco.com/en/US/products /hw/phones/ps379/prod_installation_g uides_list.html PoE Solutions http://www.cisco.com/en/US/netsol/n s340/ns394/ns147/ns412/networking_ solutions_package.html Cisco Catalyst Switches http://www.cisco.com/en/US/products /hw/switches/tsd_products_support_c ategory_home.html Integrated Service Routers http://www.cisco.com/en/US/products /hw/routers/index.html Cisco IOS Software http://www.cisco.com/en/US/products /sw/iosswrel/products_ios_cisco_ios_ software_category_home.html Understanding Phone Configuration Files Configuration files for a phone are stored on the TFTP server and define parameters for connecting to Cisco Unified Communications Manager. In general, any time you make a change in Cisco Unified Communications Manager that requires the phone to be reset, a change is automatically made to the phone's configuration file. Configuration files also contain information about which image load the phone should be running. If this image load differs from the one currently loaded on a phone, the phone contacts the TFTP server to request the required load files. These files are digitally signed to ensure the authenticity of the files' source. Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1 2-6 OL-14585-01