Fortinet FortiGate Voice 4.0 MR1 - Manual (Page 34)

Configuring VoIP interface settings FortiGate Voice web-based manager configuration reference
FortiGate Voice Version 4.0 MR1 Administration Guide
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Figure 5: System Resources widget displaying PBX disk usage
Configuring VoIP interface settings
You can configure an interface to accept SIP traffic for the FortiGate Voice PBX.
To configure VoIP interface settings
1 Go to System > Network > Interface.
2 Select the interface that you want to configure VoIP settings for.
3 Select the SIP Traffic check box to enable SIP traffic.
4 Select OK.
Configuring PSTN interfaces
Some FortiGate Voice models include public switched telephone network (PSTN)
interfaces that you can use to connect the FortiGate Voice PBX to your local public
telephone network. Using these interfaces you can route calls from your FortiGate Voice
network to the public telephone network. The PSTN interfaces are named fxo1, fxo2, and
so on.
To configure the PSTN interfaces, go to System > Network > PSTN Interface, configure
settings for the fxo interface and then select OK.