Description
This article describes how to allow WhatsApp Voice calls through a Fortinet firewall. It is necessary to create a custom service definition that encompasses the necessary protocols and port ranges.
Scope
FortiGate.
Solution
Allow the LAN user to access the WhatsApp Voice/Video calls through a Fortinet firewall, Sometime the user will face issues with WhatsApp with ISDB.
There is a firewall policy that allows WhatsApp Voip Traffic with the Application Control. as shown in the below image:
Create a Port for the Whatsapp VoIP communication with the customs Port ( TCP/UDP):
Customs Ports for WhatsApp:
Technical Note: WhatsApp Voice Call is not working when connected to FortiGate
After creating an Application control with a Signature, and Service Ports, create a Firewall Policy:
WhatsApp video/Voice Issue will be resolved.
Related article:
Troubleshooting Tip: WhatsApp video calling / voice calling does not work when ISDB is used
