Sorry this hasn't been answered yet.
As far as I know, CIT is able to store any characters that are capable of being represented in UTF-8 format. Not being familiar enough with Cyrillic or Asian character sets, I don't know if that includes the characters you have in mind.
Now, whether or not Sentinel is currently sending text in ASCII or UTF-8 format to CIT, I don't actually know. I'll see if I can get an answer for you on that.