You can pre-enter HTTP or HTTPS provisioning server credentials if your server requires authentication before the phone is deployed for usage. Forced configuration of server credentials is a safety measure to protect files on the provisioning server from unauthorized access while still allowing the phone to access the server.
With the forced configuration of server credentials, end-users do not have to manually enter the username and password on their phones. Using a keyboard, administrators can create complex passwords for better security.
If the credentials are pre-configured, the user can work with the phone as if the server does not require authentication. If the credentials are not pre-configured or are changed, the user is prompted to enter their username and password to connect to the server.