class-map match-all Voice
match ip dscp ef
match protocol rtp
class-map match-any Signaling
match protocol h323
match protocol rtcp
match protocol rtsp
match protocol sip
match protocol skinny
!
policy-map QoS-Policy-1
class Voice
set dscp ef
priority percent 30
class Signaling
set dscp cs3
bandwidth percent 5
class class-default
fair-queue
interface Outside
bandwidth xxxxxx <– be sure to define bandwidth kilobits
service-policy output QoS-Policy-1