In rare situations, you may have to erase a phone's current configuration. One such situation is when you physically move the phone from one Cisco CME system to another.
The running configuration of a Cisco 7960G, 7940G, or 7970G IP Phone can be erased from the phone. This provision is available on the Settings->Network Configuration menu. Scrolling through this menu using the rocker button or entering the number 36 takes you to the option erase configuration. If the phone is in an unlocked state, you should see a softkey labeled yes. Pressing the yes softkey gives you another softkey labeled save. If you select the save softkey, the phone's current configuration is erased, and the phone reboots.
Accessing Call Parameters for an Active Call