Chapter 4 FortiOS Carrier : Configuring GTP on FortiOS Carrier : Configuring General Settings on the Carrier-enabled FortiGate unit
  
Configuring General Settings on the Carrier-enabled FortiGate unit
To configure the GTP General Settings, go to Security Profiles > Carrier > GTP Profile, and edit a GTP profile. Expand General Settings to configure settings. See “General settings options”.