Before updating FortiFone firmware, you can review the firmware currently installed on all FortiFone devices connected to the network.
- From the FortiVoice UI, navigate to Managed System > Firmware > FortiFone Firmware and click Statistics.
- When you are finished reviewing the status of the phones, click Close.
The Firmware Upgrade Status window opens listing the phone model and firmware version details of phones currently connected to the network. The Phone Number column provides the number of phones in each particular grouping.