FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Article Id 280593
Description This article describes how to create a SIP helper for custom ports.
Scope FortiGate 6.x and later.

If there is a VoIP solution that needs a custom port, and it is desired to use SIP session-helper instead of the recommended SIP-ALG for these sessions, here is an example of how to do it.


Let's take port 6050 for this scenario:


config system session-helper
    edit 0
        set name sip
        set protocol 17
        set port 6050
Note: In this example, 'edit 0' uses the next available item ID automatically.
It is possible to follow this procedure multiple times if needed.
To change the ports for SIP-ALG, please follow this article: