AudioCodes 310HD, Administrator'S Manual

Page: 37 / 284

Version 2.0.0 37 October 2012
Administrator's Manual 6. Introduction
6 Introduction
By default, the IP phone is ready for out-of-the-box deployment using its automatic
provisioning capabilities.
The IP 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.
Notes:
x
In the DHCP Discover message, the phone publishes its model
name in Option fields 60 and 77 (e.g. 320HD). 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.
x
If the phone for some reason is powered off during the firmware
upgrade process, the phone is unusable and the recovery process
must be performed (see Section
40 on page 255 ).
x
You can only use firmware files with an .img extension and
configuration files with a .cfg extension.
x
To "force" the firmware or configuration file to be retrieved
immediately regardless of the "Check Period" value, click the Check
Now button on the relevant page on the Web interface.
x
An additional auto-provisioning mechanism is supported if the
provisioning environment does not provide all the required
information (e.g. DHCP options).
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