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Cisco SIP IP Phone Administrator Guide
Chapter 3      Managing Cisco SIP IP Phones
Modifying the Phone’s Network Settings
• XML URL settings. See the “Modifying the Phone’s SIP Settings” section on page 3-5.
• Date, time, and Daylight Saving Time settings. See the “Setting the Date, Time, and Daylight Saving 
Time” section on page 3-36
Modifying the Phone’s Network Settings
You can display and configure the network settings of a Cisco SIP IP phone. The network settings 
include information such as the phone’s Dynamic Host Configuration Protocol (DHCP) server, 
MAC address, IP address, and domain name.
Entering Configuration Mode
When you access the network configuration information on your Cisco SIP IP phone, you will notice 
that there is a padlock symbol located in the upper-right corner of your LCD. By default, the network 
configuration information is locked. Before you can modify any of the network configuration 
parameters, you must unlock the phone.
Unlocking Configuration Mode
To unlock the Cisco SIP IP phone, press **#. 
Note You have activated the configuration mode for your phone. There is no indication that an action has taken 
place.
If the Network Configuration or SIP Configuration panel is displayed, the lock icon in the upper-right 
corner of your LCD changes to an unlocked state. If you are located elsewhere in the Cisco SIP IP phone 
menus, the next time you access the Network Configuration or the SIP Configuration panels, the lock 
icon will be displayed in an unlocked state.
The unlocked symbol indicates that you can modify the network and SIP configuration settings. 
Locking Configuration Mode
To lock the Cisco SIP IP phone when you are done modifying the settings, press **#.
If the Network Configuration or SIP Configuration panel is displayed, the lock icon in the upper-right 
corner of your LCD changes to a locked state. If you are located elsewhere in the Cisco SIP IP phone 
menus, the next time you access the Network Configuration or the SIP Configuration panels, the lock 
icon will be displayed in a locked state.
The unlocked symbol indicates that you can modify the network and SIP configuration settings. 
Changing the Network Settings
Before You Begin
When configuring network settings, remember the following: