Example FortiGate Voice branch office configuration Connecting the FortiGate Voice-80C unit
FortiGate Voice Version 4.0 Administration Guide
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4 Configuring the FortiGate Voice PSTN and PBX settings.
5 Configure the FortiFones on the internal network.
6 Configuring the FortiGate Voice unit to SIP phone users behind a remote NAT device.
Connecting the FortiGate Voice-80C unit
The following procedure describes how to connect the FortiGate Voice-80C unit to the
Internet, the branch office internal network, and the PSTN.
To connect the FortiGate Voice-80C unit
1 Use an Ethernet cable to connect the FortiGate Voice-80C wan1 interface to the device
that connects the branch office to the Internet.
The device could be a cable or DSL modem or other device depending on how the
Branch Office connects to the Internet.
2 Use Ethernet cables to connect the PCs and FortiFones on the internal network to the
FortiGate Voice-80C internal interface switch connectors.
You can connect up to 8 PCs and FortiFones directly to the FortiGate Voice-80C
Internal interface switch connectors. To connect more devices, add Ethernet switches
to your network as required.
3 Use an RJ-45 telephone cable to connect the FortiGate Voice-80C fxo1 port to the
branch office PSTN phone line supplied by your local telephone service provider.
Configuring basic FortiGate Voice-80C network and UTM settings
The following procedures describe how to configure a FortiGate Voice-80C to provide
basic Internet connectivity, network services, and UTM services for the branch office
internal network. Network services include configuring the FortiGate Voice-80C to be the
DHCP server and DNS server for the internal network.
As part of the FortiGate Voice-80C network interface configuration you must enable SIP
Traffic on the internal and wan1 interfaces so that the FortiGate Voice-80C unit accepts
SIP sessions received by these interfaces. No other special network configuration, firewall
policies, or routing is required for the FortiGate Voice-80C to accept SIP sessions from
configured extensions.
To configure basic network settings
1 Connect to the FortiGate Voice-80C web-based manager.
2 Go to System > Network > Interface.
3 Edit the internal interface and configure the following settings:
Configure other network interface settings as required and select OK.
4 Edit the wan1 interface and configure the following settings:
Addressing Mode Manual
IP/Netmask 172.20.120.10/255.255.255.0
SIP Traffic Select Enable
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