Avaya IP Office: Clear/Reset Avaya 1600 Series Handset

MUTE 25327# (CLEAR)

This feature clears all settings from the phone. In essence this is a total default of the phone to the most basic configuration. The system will confirm and verify the procedure before proceeding.
The phone will reboot and return in the same state as a new out of the box phone.

MUTE 73738# (RESET)

This feature is much like the above CLEAR. This option can either reboot the phone saving all programmed values, or reset all locally administered variables. The action is confirmed prior to proceeding. The phone will reboot, and return with all the variables if Reset Phone was selected.
If Reset Values was selected, the phone will reboot without an Extension or Password, IP Settings, or any other locally administered values.

To clear a handset while logged in as a user:

Press MUTE followed by 25327 followed by #
Clear all values? Press # to confirm
Are you sure? Press # to confirm
The phone will now reboot and begin startup
Enter the users extension when prompted and press # to confirm
Enter the users password when prompted and press # to confirm

To clear a handset during startup:

After powering on the handset, press * to program when prompted
Press # to proceed and accept current values at each stage
At the Enter Command prompt, press MUTE followed by 25327 followed by #
At the Clear all values? prompt, press # to confirm
At the Are you sure? prompt, press # to confirm
The phone will now reboot and begin startup
Enter the users extension when prompted and press # to confirm
Enter the users password when prompted and press # to confirm