User's Manual
19. Maintenance
Version 4.4.0
361
MP26x/MP27x
19.6 Firmware Upgrade
The device provides a built-in mechanism for upgrading its software image. There are two
methods for upgrading the software image:
Upgrading from a Computer on the Network:
This method uses a software image
file that is pre-downloaded on a PC's disk drive or located on an accompanying CD.
(See Section
on page
Upgrading from the Internet:
This method also referred to as 'Remote Update',
upgrades your firmware by remotely downloading an updated software image file.
(See Section
on page
The device provides a flash memory of 16 MB, which is capable of storing two firmware
images. In addition to the primary firmware, the device also stores a recovery firmware,
which is used only if the primary image is missing or damaged (e.g. if the user unplugs the
power during firmware upgrade). Except for the analog or VoIP interfaces, the recovery
image supports all interfaces and enables the device to reconnect to the Internet and
download the primary firmware.
The software contains the DECT firmware. After the device re-boots, the software
compares the burnt DECT firmware, with the embedded firmware. If different, an automatic
upgrade of the DECT takes place. During that time, the DECT LED blinks fast, and no
DECT operations are possible. This upgrade takes approximately three minutes.
Note:
During the upgrade process, do
NOT
power off the device.
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