Reset CISCO IP phone 7911, 7906 and 794x series by using erase softkey

Erase from Settings menu
Type on the phone :

•Goto Menu then settings
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button

After Resets user and network configuration settings to their default values, deletes the CTL file from the phone, and restarts the phone.

Erase from Network configuration menu
Type on the phone :

•Goto Menu then settings then network configuration
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button

Resets network configuration settings to their default values and resets the phone. (This method causes DHCP reconfigure the IP address of the phone.)


Erase from Security configuration menu
Type on the phone :

•Goto Menu then settings then Security configuration
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button

Deletes the CTL file from the phone and restarts the phone