Cisco 7912G User Manual

Page 50

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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding Phone Configuration Files and Profile Files

2-8

Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SIP), Cisco Unified IP Phones

OL-8131-01

Understanding Phone Configuration Files and Profile
Files

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 new image file.

The phone first requests the following configuration file, where mac is the
hexadecimal representation of the MAC address of the phone:

For Cisco Unified IP Phone 7905G—ld<mac> or ld<mac>.x

For Cisco Unified IP Phone 7912G—gk<mac> or gk<mac>.x

If the phone cannot find a file of this naming convention, the phone then looks for
the following file:

For Cisco Unified IP Phone 7905G—lddefault.cfg or lddefault.cfg.x

For Cisco Unified IP Phone 7912G—gkdefault.cfg or gkdefault.cfg.x

After the phone finds one of the profile files, or if it cannot find a profile file, it
continues with its startup process.

Note

For information on using your phone in a secure Cisco Unified CallManager
environment, see the

“Configuring the Encryption Key” section on page 4-7

.

Related Topics

Understanding the Phone Startup Process, page 2-4

Resolving Startup Problems, page 7-2

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