Cisco 7965G Administration Guide

2-5
Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.0
OL-12650-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding Phone Configuration Files
Power Outage
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.
Obtaining Additional Information about Power
For related information about power, refer to the documents shown in Table 2-3. These documents
provide information about these topics:
• Cisco switches that work with the Cisco Unified IP Phone 7965G and 7945G
• The Cisco IOS releases that support bidirectional power negotiation
• Other requirements and restrictions regarding power
Table 2-3 Related Documentation for Power
Document Topics URL
Cisco Unified IP Phone Power Injector http://http://www.cisco.com/en/US/pr
oducts/ps6951/index.html
PoE Solutions http://www.cisco.com/en/US/netsol/
ns340/ns394/ns147/ns412/networking
_solutions_package.html
Cisco Catalyst Switches http://www.cisco.com/univercd/cc/td/
doc/product/lan/index.htm
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 made to the phone’s
configuration file automatically.
Configuration files also contain information about which image load the phone should be running. If this
image load differs from the one that is 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 file
source.)
In addition, if the device security mode in the configuration file is set to Authenticated and the CTL file
on the phone has a valid certificate for Cisco
Unified Communications Manager, the phone establishes
a TLS connection to Cisco
Unified Communications Manager. Otherwise, the phone establishes a TCP

Cisco 7965G Specifications

General

Brand	Cisco
Model	7965G
Category	IP Phone
Language	English