400HD Series IP Phones
Administrator's Manual 56 Document #: LTRT-11950
10.2.5 Hardcoded Domain Name for Provisioning Server
If no higher-priority provisioning method applied, the phone automatically searches in the
DNS server for the domain named "ProvisioningServer". After the DNS server gives the
domain IP address, the phone contacts the provisioning server. The phone tries to retrieve
firmware and configuration files using URL tftp://ProvisioningServer/<Phone Model
Name>/
For example:
The phone tries to obtain the following firmware file:
tftp://ProvisioningServer/440HD.img
where 440 is optional; if omitted, the phone will try to retrieve the firmware file
according to its model name.
The phone tries to obtain the following configuration file:
tftp://ProvisioningServer/<MAC address>.cfg
where MAC address is optional; if omitted, the phone will try to retrieve the
configuration file according to its MAC address.
(e.g. tftp://ProvisioningServer/440HD/001122334455.cfg)
The network administrator must configure a DNS entry called "ProvisioningServer" on the
DNS server and set it to the TFTP server IP address.
Note: If Generic Domain Name is used, the automatic provisioning mechanism
periodically tries to retrieve new firmware/configuration from Provisioning Server domain
name.
10.2.6 Cached Address of Last Provisioning Server Used
These are the addresses of the last provisioning servers used, stored in cache memory.
When the device starts up and connects to the provisioning server, it can pull firmware,
configuration and private label files from the provisioning server using the cached address of
the last provisioning server used.
After the IP phone creates a successful connection with a provisioning server, this server's
address is cached by the IP phone. The next time the IP phone is rebooted, if it doesn't
receive provisioning details, the device performs provisioning using the cached IP address.
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