How to Customize the Default Configuration File
You can find the MAC address of a phone on the middle sticker adhered to the base of the phone. You
Note
can also view it on the Network Configuration menu.
Each configuration file contains phone parameters you can set. When setting parameters, note the
following:
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Each parameter, or variable, in a configuration file is a one-line entry that must use the following format:
variable-name : value ; optional comments
Configuration-file variable entries must adhere to the following rules:
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How to Customize the Default Configuration File
When you reboot a phone on your network, it automatically downloads the default configuration file
SIPDefault.cnf from your TFTP server.
This section describes how to customize the SIPDefault.cnf file to allow you to set common parameters
on all of the phones on your network. Maintaining parameters—such as whether phones must register
with a proxy server and the codec that phones must use when initiating a call—in the default
configuration file allows you to perform global changes. For example, you can upgrade the image
version without having to customize the phone-specific configuration file for each phone.
Cisco Unified IP Phone 7960G and 7940G Administration Guide for Release 8.0 (SIP)
3-4
Parameters in the default configuration file override those stored in the phone's flash memory.
Parameters in the phone-specific configuration file override those stored in the default configuration
file.
If configuration files are not used to set parameters on the phone, you must set up the phone
manually.
When a phone is rebooted, the manually set values of parameters are overridden by the values found
in the configuration files (if the same parameters exist in at least one of the configuration files).
Since the configuration files are reloaded each time the phone is rebooted, you can avoid overriding
a phone's local values by removing from the configuration files the parameters that set those values.
You can also avoid overriding local values by preventing the reload of the configuration files.
Associate only one value with one variable.
Separate variable names and values with colons.
Set only one variable per line.
Indicate the end of a line with <lf> or <cr><lf>.
Put the variable and value on the same line, and do not break the line.
You can include white space before or after a variable or value. You can include any character within
them. However, if white spaces are needed within the value, you must enclose the value in single or
double quotes. If the value is enclosed in quotes, the end quote must be the same as the start quote.
You can include comments after the value. Use the semicolon (;) or pound (#) delimiters to
distinguish the comments.
You can include comment lines.
You can include blank lines.
You can use any case for variables; they are not case sensitive.
Chapter 3
Initializing Cisco Unified IP Phones
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