Language
You can select the device's LCD and web language on the Phone > Time/Lang interface.
The device web supports the following languages:
English, Traditional Chinese, Spanish, Dutch, French, German, and Japanese.
The device LCD supports the following languages:
English, Simplified Chinese, Traditional Chinese, Russian, Portuguese, Spanish, Italian, Dutch, French, German, Hebrew, Polish, Turkish, Czech, Norwegian, Montenegrin, Ukrainian, Danish, Bosnian, Vietnamese, and Arabic.

Custom Language
You can customize the configuration names and prompt texts on the device and its web portal such as the file name error warning.
Export the .json file for editing. You may edit it with the notepad on your computer.
Import the .json file and its size should be smaller than 1 MB.
File Example:

Set it up on the Phone > Time/Lang > Words of Language Upload interface.
Note
The uploaded file for customizing web language should be in .json format.
The uploaded file for customizing LCD language should be in .xml format.
Time
The time settings on the web interface allow you to configure the NTP server address for automatic time and date synchronization. Once a time zone is selected, the device will notify the NTP server of the chosen time zone, enabling it to synchronize the time zone settings on your device.
To set up the device time, go to Phone > Time/Lang> Time.
Time Format: Select the 12-hour format or the 24-hour format.
Type: You can set up the time manually by selecting Manual.
Preferred/Alternate Server: The NTP server address. The alternative server will take effect when the primary server is unavailable.
Update Interval: The interval between two consecutive NTP requests.
Tip
You can also change the time directly on the device.
Press *2396# to enter Admin Settings.
Select System Settings.
Select Time Setting.
Select Auto to automatically set up the time; select Manual to input the date and time.