1. Tarkvara paigaldamine 

Vaata siit.

2. OsTicket keskkonna keele vahetus.

You download and install the language files by:
Go to https://osticket.com/downloads
Click on Language packs tab.
Click the Download button next to the one you want.
upload the phar file to the include/i18n folder of your osTicket installation.
Once you have done this log into your osTicket installation as an admin. Go to : Admin panel -> Settings -> System. Under Add a Language select the language that you want to add. Click Save Changes.