GTM900-C + dev board

[dmitry]

Hi FreeCalypso community, 

I found this board on Aliexpress
https://www.aliexpress.com/item/GTM900-GTM900C-GTM900-C-module-SM1200-PGPRS-RC4/32909849641.html

this is a GTM900-C module + board 

judging by what is written in the document previously shared by
Serge, it additionally supports a certain GT800 trunk standard (unless
the Google Translate is wrong). Can this have theoretically any effect
on its basic functionality? I'd like to try to purchase this board
and try FreeCalypso FW on it.

thanks! 
Dmitry