Yealink SIP-T23, Provisioning Manual

Page: 49 / 321

Downloading and Verifying Configurations
45
After obtaining the provisioning server address in one of the ways introduced above,
the phone will request to download the configuration files from the provisioning server
when it is triggered to perform auto provisioning. During the auto provisioning process,
the IP phone will try to download the Common CFG file firstly, and then try to download
the MAC-Oriented CFG file from the provisioning server. If the access URLs of the
resource files have been specified in the configuration files, the phone will try to
download the resource files.
After downloading, the phone resolves the configuration files and resource files (if
specified in the configuration files), and then updates the configurations and resource
files to the phone flash. Generally, updated configurations will automatically take effect
after the auto provisioning process is completed. For update of some specific
configurations which require a reboot before taking effect, for example, network
configurations, the IP phone will reboot to make the configurations effective after the
auto provisioning process is completed.
The IP phone calculates the MD5 values of the downloaded files before updating them.
If the MD5 values of the Common and MAC-Oriented configuration files are the same
as those of the last downloaded configuration files, this means these two configuration
files on the provisioning server are not changed. The IP phone will complete the auto
provisioning without repeated update. This is used to avoid unnecessary restart and
impact of phone use. On the contrary, the IP phone will update configurations.
If configuration files have been AES encrypted, the IP phone will uses the Common AES
key to decrypt the Common CFG file and the MAC-Oriented AES key to decrypt the
<MAC>.cfg file after downloading the configuration files. For more information on how
the IP phone decrypts configuration files, refer to
Yealink Configuration Encryption Tool
User Guide
.
The latest values to be applied to the IP phone are the values that take effect.
The phone only reboots when there is at least a specific configuration requiring a reboot
after auto provisioning. If you want to force the IP phone to perform a reboot after auto
provisioning, you can configure “auto_provision.reboot_force.enable = 1” in the
configuration file.
For more information on the specific configurations which require a reboot during auto
provisioning and the parameter “auto_provision.reboot_force.enable”, refer to
Description of Configuration Parameters in CFG Files on page 81 .