Hi
As far as I know, you should be able to create a custom connector against jbase using jdbc.
However, I do not think that jbase is exposed in t24 banking application and I am not aware that we have any specific t24 connector.
I do not know if t24 banking application has any public "application programming interface" such as the possibillity to connect via jdbc.
If it has any public API interface, a custom connector should be able to interface
Cheers, Atle