Aastra Telecom 9480i CT Series User Manual

The IP Phones allow you to lock individual configuration parameters to prevent 
an end user from changing the configuration on the phone. This feature allows 
service providers to prevent the end-user from changing the values of specific 
parameters that would affect the service they provide. 

An Administrator can lock parameters on the phone by placing an exclamation 
mark (

) before 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 only. 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 Aastra Web UI and the IP 
Phone UI. In the Aastra 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.

1

Using a text-based editing application, open the configuration file for the phone, for which you want to 
configure the directory list (either aastra.cfg, <mac>.cfg or both).

2

Enter the required configuration parameters followed by the applicable value. For example,

3

Save the changes and close the configuration file.

4

If the parameter requires the phone to be restarted in order for it to take affect, use the 
IP Phone UI or the Aastra Web UI to restart the phone.

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