Chapter 17 Traffic Shaping for FortiOS 5.0 : Examples : Example setup for VoIP : Creating the traffic shapers
  
Creating the traffic shapers
First create the traffic shapers that define the maximum and guaranteed bandwidth. The shared shapers will be used, some with per-policy and some all policies as shown in the table, to better control traffic.
See also 
VoIP shaper
FTP shaper
Regular traffic shaper
Creating security policies