Traffic shaping and openvpn

[twareika]

Hi,

I've go two sites with openvpn running between them :
    IPBX 1 <–> Pfsense <-- OpenVPN --> Pfsense <--> IPBX 2

I want to apply prioritiz voip inside this tunnel. I'm using pfsense 2.

Is it possible ? How ? Sould i use a second specific tunnel only for voip ?

Regards