Did you look at this link:
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf
Configuring the Cisco Unified Wireless IP Phone 7921G
There are two methods for configuring network settings on the Cisco Unified Wireless IP Phone 7921G:
Configuring Phones with the Keypad
You can use the menus and keypad on the phone by pressing Settings > Network Profiles. You need to unlock the screen by
pressing **#.
For more information, refer to the âConfiguring Settings on the Cisco Unified Wireless IP Phone 7921Gâ in the
Cisco Unified Wireless IP Phone 7921G Administration Guide at this URL:
http://www.cisco.com/en/US/products/hw/phones/ps379/prod_maintenance_guides_list.html
Configuring Phones with the Web Interface
The Cisco Unified Wireless IP Phone 7921G has an HTTPS enabled web interface that you can access via the 802.11a/b/g radio
or USB.
If you are using the USB cable connection to a PC, you must manually set a static IP on the computer side, for example,
192.168.1.X /24. By default, the Cisco Unified Wireless IP Phone 7921G USB is statically set to 192.168.1.100 /24.
You must log in to the administration web pages by using these defaults:
username is âadminâ and the password is âCiscoâ.
-Scott
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