Inquiry about using FX30

Can the FX30 be used as a regular external modem like the regular GL7611 without applying Legato?
I understand that FX30 must communicate via Legato.
However, I have no idea about Legato and am trying to use it as a regular external modem, but am I having any problems?

FX30 is cat-M module inside, it is different from WP7611

other FX30 models, WP7611-1 & WP7607-1(CAT1) are applied. If FX30 with CAT1 module is applied, is it EOL?

did you check with Sales team?