Why does matter? Because it represents the challenge of Asset Management.
Go to Settings > Upgrade > Upgrade Firmware .
When an employee reports that "the phone isn't working," the IT support ticket generates a diagnostic process that begins with this string. The technician doesn't need to walk to the desk to know the model; they know it is a T58W. They don't need to search the building; they know the IP address allows them to remotely access the device's web interface to ping it or check its status.