Chapter 7 Firewall for FortiOS 5.0 : Firewall objects : Example Scenario: Using FortiGate services to support Audio/Visual Conferencing : Configuring the services : To edit an existing service:
  
To edit an existing service:
H323
Go to Firewall Objects -> Service -> Services
Scroll down to the section: VoIP, Messaging & Other Applications
Select H323
Select Edit
In the Protocol section add the additional protocol:
Protocol Type
TCP
Destination port /Low
1719
Select OK to save
SIP
Select SIP
Select Edit
In the Protocol section add the additional protocol:
Protocol Type
TCP
Destination port / Low:
5060