AudioCodes 405HD, Руководство администратора

Страница: 27 / 242

Administrator's Manual 3. Configuring Automatic Provisioning
Version 3.4.3 27 400HD Series IP Phones
3 Configuring Automatic Provisioning
By default, the phone is ready for out-of-the-box deployment using its automatic provisioning
capabilities.
The phone offers a built-in mechanism for automatically upgrading its software image and
updating its configuration. This method is used to upgrade the phone firmware and update
its configuration, by remotely downloading an updated software image and configuration file.
The automatic update mechanism helps you keep your software image and configuration
up-to-date, by performing routine checks for newer software versions and configuration files,
as well as allowing you to perform manual checks.
The automatic update mechanism is as follows:

Before connecting the phone, verify that the provisioning server is running and that the
firmware and configuration files are located in the correct location.

Connect your phone to the IP network, and then connect the phone to the power
outlet.

During DHCP negotiation, the phone requests for DHCP options 66/67/160 to receive
provisioning information. The DHCP server should respond with Option 160 providing
the provisioning URL or Options 66 and 67 providing the TFTP IP address and
firmware file name respectively.

The phone then checks whether new firmware is available by checking the firmware
file header. If the version is different from the one currently running on the phone, the
phone downloads the complete image and burns it to its flash memory.

If a new firmware is unavailable, the phone then checks whether a new configuration
is available. If a configuration file is available on the server, the phone downloads it
and updates the phone's configuration after verifying that the configuration file is
related to the phone model. When a configuration update is needed, the phone might
reboot.
Note:
•
In the DHCP Discover message, the phone publishes its model name in Option
fields 60 and 77 (e.g. 440HD). If the administrator wants to provide different
provisioning information to different phone models, the administrator can set up a
policy in the DHCP server according to the phone model name.
• If the phone is powered off for some reason during the firmware upgrade process,
the phone will be unusable and the recovery process must be performed.
•
You can only use firmware files with an .
img
extension and configuration files with a
.cfg extension.
• An additional auto-provisioning mechanism is supported if the provisioning
environment does not provide all the required information (e.g. DHCP options).
Note: Automatic mass provisioning of phones using DHCP can alternatively be
performed from the OVOC’s Device Manager module. For more information, see the
Device Manager Pro Administrator's Manual
.