Cisco OL-8131-01 User Manual
Page 7
2-7
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SIP), Cisco Unified IP Phones
OL-8131-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
6. Requesting the 
Configuration File and 
the Profile File
The TFTP server has configuration files and 
profile files. A configuration file includes 
parameters for connecting to 
Cisco Unified CallManager and information about 
which image load a phone should be running. A 
profile file contains various parameters and values 
for phone and network settings.
•
“Understanding 
Phone 
Configuration Files 
and Profile Files” 
section on page 2-8
•
“Resolving Startup 
Problems” section 
on page 7-2
7. Contacting 
Cisco Unified CallMan
ager
The configuration file defines how the 
Cisco Unified IP Phone communicates with 
Cisco Unified CallManager. After obtaining the 
file from the TFTP server, the phone attempts to 
make a TCP connection to the highest priority 
Cisco Unified CallManager on the list.
If the phone was manually added to the database, 
Cisco Unified CallManager identifies the phone. 
If the phone was not manually added to the 
database and auto-registration is enabled in 
Cisco Unified CallManager, the phone attempts to 
auto-register itself in the 
Cisco Unified CallManager database.
Cisco Unified CallManager informs devices, 
using the following configuration file formats, of 
their load ID. Note that 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
•
“Understanding the 
Phone Startup 
Process” section on 
page 2-4
•
“Resolving Startup 
Problems” section 
on page 7-2
Table 2-1
Cisco Unified IP Phone Startup Process (continued)
Step
Configuration
Related Topics