FortiGate
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.
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Staff
Staff
Article Id 190672
Description
This article provides a first troubleshooting step that should be followed when WhatsApp voice calls are not working.

Solution
WhatsApp voice calls use a custom port for the voice communication. The following ports will need to be allowed in order for WhatsApp voice calls to work:
TCP: 4244, 5222, 5223, 5228, 5242
UDP: 3478, 45395

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