DEVICE=ppp0

INPUT_SPEED=20mbit
OUTPUT_SPEED=10mbit
LINKTYPE="local pppoe-llc"

interface $DEVICE world-in input rate $INPUT_SPEED
  class voip commit 120kbit       # https://www.twilio.com/docs/api/client/regions
    match src 54.171.127.192/26   # Twilio: ie1
    match src 52.215.127.0/24     # Twilio: ie1
    match src 35.156.191.128/25   # Twilio: de1
    match src 185.187.132.64/26   # Twilio: ie1-tnx
    match udp port 5060           # SIP
    match udp dports 10000:10100  # RTP
    match sports 3478,5349        # STUN
  class interactive commit 20%
    match udp port 53             # DNS
    match tcp port 22             # SSH
    match icmp                    # ping
    match tcp sports 5222,5228    # gtalk
  class synacks
    match tcp syn
    match tcp ack
  class web commit 5%
    match tcp sports 80,443
  class mail
    match tcp sports 25,465,587
  class default

interface $DEVICE world-out output rate $OUTPUT_SPEED
  class voip commit 120kbit
    match dst 54.171.127.192/26   # Twilio: ie1
    match dst 52.215.127.0/24     # Twilio: ie1
    match dst 35.156.191.128/25   # Twilio: de1
    match dst 185.187.132.64/26   # Twilio: ie1-tnx
    match udp port 5060           # SIP
    match udp sports 10000:10100  # RTP
    match dports 3478,5349        # STUN
  class interactive commit 20%
    match udp port 53             # DNS
    match tcp port 22             # SSH
    match icmp                    # ping
    match tcp dports 5222,5228    # gtalk
  class synacks commit 2%
    match tcp syn
    match tcp ack
  class web commit 5%
    match tcp dports 80,443
  class mail
    match tcp dports 25,465,587
  class default