Understanding Phone Configuration Files - Cisco 7906G Administration Manual
Unified ip phone for cisco unified callmanager 4.1(3)
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Also See for 7906G:
- Administration manual (278 pages) ,
- User manual (112 pages) ,
- User giude (90 pages)
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Understanding Phone Configuration Files
Understanding Phone Configuration Files
Note
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
2-6
Chapter 2
Table 2-2
Related Documentation for Power
Document Topics
PoE Solutions
Cisco Catalyst Switches
Integrated Service Routers
Cisco IOS Software
Configuration files for a phone are stored on the TFTP server and define
parameters for connecting to Cisco Unified CallManager. In general, any time
you make a change in Cisco Unified CallManager 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 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.
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 CallManager, the phone establishes a TLS connection to
Cisco Unified CallManager. Otherwise, the phone establishes a TCP connection.
If the device security mode in the configuration file is set to Authenticated or
Encrypted but the phone has not received a CTL file, the phone will continuously
try to obtain a CTL file so that it can register securely.
A phone requests a configuration file whenever it resets and registers with
Cisco Unified CallManager.
Preparing to Install the Cisco Unified IP Phone on Your Network
URL
http://www.cisco.com/en/US/netsol/
ns340/ns394/ns147/ns412/networking
_solutions_package.html
http://www.cisco.com/univercd/cc/td/
doc/product/lan/index.htm
http://www.cisco.com/en/US/products
/hw/routers/index.html
http://www.cisco.com/en/US/products
/sw/iosswrel/products_ios_cisco_ios_
software_category_home.html
OL-10008-01
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