Table 29: Global Policy Parameters->Maintenance - Grandstream Networks UCM6200 User Manual

Remove manually-edited
entries on download
Upgrade and Provision
Firmware Source
Upgrade via
Server Path
File Prefix
File Postfix
Allow DHCP Option
43/66
Automatic Upgrade
If set to "Yes", when XML phonebook is downloaded, the entries added
manually will be automatically removed.
Table 29: Global Policy Parameters->Maintenance
Firmware source via ZeroConfig provisioning could a URL for external server
address, local UCM directory or USB media if plugged in to the UCM6200.
Select a source to get the firmware file:

URL
If select to use URL to upgrade, complete the configuration for the following
four parameters: "Upgrade Via", "Server Path", "File Prefix" and "File
Postfix".

Local UCM Server
Firmware can be uploaded to the UCM6200 internal storage for firmware
upgrade. If selected, click on "Manage Storage" icon next to "Directory"
option, upload firmware file and select directory for the end device to
retrieve the firmware file.

Local USB Media
If selected, the USB storage device needs to be plugged into the UCM6200
and the firmware file must be put under a folder named "ZC_firmware" in
the USB storage root directory.

Local SD Card Media
If selected, an SD card needs to be plugged into the UCM6200 and the
firmware file must be put under a folder named "ZC_firmware" in the USB
storage root directory.
When URL is selected as firmware source, configure upgrade via TFTP, HTTP
or HTTPS.
When URL is selected as firmware source, configure the firmware upgrading
server path.
When URL is selected as firmware source, configure the firmware file prefix. If
configured, only the firmware with the matching encrypted prefix will be
downloaded and flashed into the phone, if URL is selected as firmware source.
When URL is selected as firmware source, configure the firmware file postfix.
If configured, only the configuration file with the matching encrypted postfix will
be downloaded and flashed into the phone.
If DHCP option 43 or 66 is enabled on the LAN side, the TFTP server can be
redirected.
If enabled, the endpoint device will automatically upgrade if a new firmware is
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