Restore firmware

This replaces the current software with the one supplied with the phone.

This erases all settings including account information and contacts!


  1. Disconnect the power supply cable. Note that this is the same as the network cable if the phone uses Power over Ethernet (PoE).
  2. Press and hold the MENU button while you connect the cable again (i.e. start the Avaya B179). Hold the button until the SYSTEM RECOVERY menu is shown on the display.

    If you are using POE and not the external power supply, you must wait for Avaya to appear on the display, then press and hold Menu until the SYSTEM RECOVERY menu appears.

    You can press any other button than 1, 2, or 3 to start the phone without restoring the firmware.

  3. Press 3 to select Restore Firmware and confirm your selection by pressing OK.

    All content in the phone’s memory is erased and the firmware supplied with the phone is written to the memory.

  4. When the phone starts, upgrade to the latest version of the software and re-configure account setup and other settings (see Basic settings for more information).