Recovery Mode; Decryption - TIPTEL 28XS Manual

Simply IP Phone
1) Choose Upgrade->Basic->Browse, select the firmware file in your local computer.
2) Click Upgrade button to update the new firmware.
3) Please do not power off during the updating.
To update the firmware automatically via Web interface:
1) Choose Upgrade->Advanced, configure the relating settings: Custom Option, Custom Option
Type, URL, Account, Password, pecified AES Key Per-phone AES Key PNP config, check
new firmware, etc.
2) Click Confirm button, the phone will check the server for a new firmware in a specific time,
and it updates automatically if there is new firmware.
3) You can also update the firmware immediately by pressing Auto provision button.
Note:
1. Any power interruption during the following process will most likely lead to a flash memory
error. As a result the system cannot boot up anymore. The procedure can be only conducted
in Administrator Mode.

Recovery mode

When the phone fails to upgrade or in whatever reason you cannot start the phone, you can
upgrade the firmware through recovery mode
1) Set your PC's network
2 Open the TFTP server on your PC to restore the software to be renamed t18.rom, and the put
it into a specified directory
3) Press key and hold it when power on.
4) When the light is red that rom file in the download. Then you can release the
5) When the light is orange and blinking slowly, it means update is successful

Decryption

This IP phone can support y000000000000.cfg and mac.cfg files encryption and decryption for
user authentication to realize
mac.cfg files on the server, users can open the webpage of your IP phone. Go to
Upgrade->Advanced, choose and fill in the Specified AES Key (16 bit) and Per-phone AES Key
(16 bit) option, then click the Confirm button to decryption the files and upgrade to the new version.
Shown as below:
IP Address 192.168.0.5
SUBNET_MASK 255.255.255.0
IP Address GATEWAY 192.168.0.1
s
ecurity usage. If there are any encrypted y000000000000.cfg or
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Trouble Shooting
key.