I currently run each client, who is on a static IP, through a simple queue with max limit set to control bandwidth. The queues are PCQ type. I am running 2.8.13.
mangle VoiP traffic with one flow, everything other - with another. And set priority to 1 for 1st ones under queue menu.
You can change also TOS value for these packets using set-tos parameter. It could be max-reliability in this case.
