I have a NAT firewall and two voip phones located behind the firewall. I wanted to know if it was possible to prioritize that traffic with iptables so that my phone conversations received enough bandwidth. I apologize if this information is somewhere on the netfilter website. I looked for something related but could only find information on prioritizing quake and a few other services. I also "google" it and came up with nothing significant. Thanks in advance to all who reply, Bryan