As a service provider or reseller, you can update the account-level firmware version of Avaya J100 Series IP Phones for all their Avaya Aura X for Avaya Cloud Office (ACO) (ACO) customers at the same time.
Procedure
On the Device Enrollment Services web portal, navigate to Company Accounts > Account Management.
Click More Actions.
Click ACO Firmware Management.
In the Firmware Version field, click the version to update all Avaya Aura X for Avaya Cloud Office (ACO) devices.
Click Submit.
To check if all Avaya Aura X for Avaya Cloud Office (ACO) devices are successfully updated to the selected version, go to the Log Viewer section.