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How to Configure FortiGate for VoIP (vs SonicWall and Ubiquiti)

How-to-Configure-a-Fortinet-FortiGate-for-VoIP-vs-SonicWall-and-Ubiquiti Title Card With Viirtue Brranding

Configuring a FortiGate firewall for VoIP is more involved than most guides suggest. The SIP ALG issue alone has two separate mechanisms on FortiOS, and missing either one produces the same broken result: dropped calls, failed registrations, or one-way audio. This guide walks MSPs and IT admins through the exact FortiOS 7.x steps to disable SIP ALG properly, configure traffic shaping for voice, and tune UDP session timers for call stability. It also compares FortiGate against SonicWall and Ubiquiti so you can build a repeatable deployment standard across your client base.

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