51.6 Configuring Zero Configuration
The Zero Configuration feature enables automatic, remote configuration of newly deployed,
non-configured devices, using AudioCodes HTTPS Redirect Server. This feature offers an
almost plug-and-play experience for quick-and-easy initial deployment of multiple devices
at the end-customer premises. Zero Configuration requires only minimal preconfiguration of
the device for WAN connectivity. Once an Internet connection is established, all that is
needed is a device reset to activate the Zero Configuration mechanism.
Zero Configuration operates in combination with the Automatic Update feature. It redirects
the device to an HTTP/S provisioning server from where the configuration file, configured
with Automatic Update settings, can be downloaded and applied to the device. The device
then performs the regular Automatic Update process according to these Automatic Update
settings.
Once the device is powered up and connectivity to the WAN established, it automatically
sends an HTTP request to AudioCodes HTTPS Redirect server. If the device's MAC
address is listed on the server, the server responds to the device with an HTTP Redirect
response containing the URL of the HTTP/S server (typically, a provisioning server
maintained by the Service Provider) where the configuration file is located. The device then
downloads the configuration file from this provisioning server and updates its configuration.
Typically, this configuration file only enables the Automatic Update mechanism and
therefore, once downloaded, the device executes the Automatic Update mechanism
accordingly.
Figure 51-2: Zero Configuration Process
1. Device sends HTTPS request to AudioCodes HTTPS Redirect server.
2. Redirect server sends HTTPS response with redirect URL.
3. Device sends HTTPS request to redirected URL (i.e., provisioning server).
4. Device downloads configuration file for enabling the regular Automatic Update feature.
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