Factory Reset an Avaya 1608 Handset

To factory reset an Avaya 1608 Handset you will need to do the following:

  1. Reboot the phone
  2. When the display shows “Press * to Program”, press *
  3. Repeatedly press # until the message “Enter Command” appear.
  4. Press the Mute key followed by 25327#.
  5. The display will show “Clear all values” *=no #=yes
  6. Press #
  7. The display will show “Are you sure?” *=no #=yes
  8. Press # and the phone will reboot back up in factory default.