Mitel 6800 Series Administrator's Manual page 69

An Administrator can lock parameters on the phone by placing an exclamation mark (
the parameter in the configuration file. For example,
!admin password: 22222
!emergency dial plan: 911|999
You can lock parameters on the phone using the configuration files. Once the parameters are
locked, they cannot be changed at all during the phones run-time. The parameters appear as
read-only when accessing the Mitel Web UI and the IP Phone UI. In the Mitel Web UI, they
appear grayed out. In the IP Phone UI the ability to change the parameters is removed. In
addition, when parameters are locked, they cannot be changed via XML.
Notes:
1. The "parameter locking" feature applies to Release 2.4 and up. Any phones that
have a previous release loaded on the phone will not be able to use the locking
functionality in the configuration file.
2. Any parameter duplicated in the <model>.cfg from the startup.cfg is overwritten
by the locking status and the value of the parameter found in the <model>.cfg file.
Parameters in the <mac>.cfg file overwrite parameters in the <model>.cfg and
startup.cfg files.
Limitations
• A User possessing the Administrator password can bypass the locking of configuration
server details by defaulting the phone.
• Softkeys can be locked and unlocked via XML using the AastraIPPhoneConfiguration
object and softkeyN locked parameter (for more information about using the AastraIP-
PhoneConfiguration object, contact Mitel Customer Support regarding the Mitel XML
Development Guide). All other parameters cannot be locked or unlocked using XML.
• Configuration files that include locked parameters are not backwards compatible.
OVERWRITING PARAMETERS WITH DEFAULTS IN THE CONFIGURATION
FILES
An Administrator can specify a " ^ " (caret character) before a configuration parameter in the
startup.cfg, <model>.cfg, and <mac>.cfg configuration files, which allows the parameter to be
overwritten and reset back to a specified value. This can be convenient when changes are
made by a user to specific parameters on the phone locally (via Mitel Web UI or IP Phone UI),
and the Administrator wants to set the parameters back to the default values using the
configuration files.
As an example, the following table describes how the parameter "sip proxy ip" is handled by
the phone during phone bootup when either the " ^ " (default parameter) is used or the " ! "
(locked parameter) is used.
IF
new <mac>.cfg file is loaded to the phone with
"^sip proxy ip" and any other parameter(s) from
the file specifying a " ^ "
THEN
the "^sip proxy ip" and any other " ^ " parameters
are overwritten if previously changed by the user.
2-17
Configuration Methods
!
) before