Forward packets marked with DSCP

Hi,

I have Fortigate that divides 2 networks, one is the LAN and the other is the MPLS connected to other remote sites.

I am currently marking traffic from voip phones with dscp 46 on all switches routers connected to the Fortigate.

I want the Fortigate to forward these without reset the dscp to 00.

This is what i did:

config system global    set traffic-priority dscp    set traffic-priority-level low end   config system dscp-based-priority     edit 46         set ds 46         set priority high     next end

is this enough?

thanks