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Configuring network settings for the devices on the Internal network Example FortiGate Voice branch office configuration
FortiGate Voice Version 4.0 MR1 Administration Guide
22 01-410-112851-20100601
http://docs.fortinet.com/ • Feedback
Configuring network settings for the devices on the Internal
network
You can configure the PCs and other devices on the internal network to get their network
configuration automatically using DHCP. If required you can also configure devices on the
internal network with static IP addresses on the 172.20.120.0 subnet but outside the range
awarded by the FortiGate Voice DHCP server. Example static TCP/IP configuration:
You can also use the same network configuration for the SIP phones on the internal
network.
Configuring the FortiGate Voice PSTN and PBX settings
The procedures in this section describe how to configure the FortiGate Voice unit as the
PBX for SIP phones on the branch office internal network. These procedures describe
how to configure many of the FortiGate Voice PSTN and PBX features. PSTN features are
supported on some FortiGate Voice models. The following procedures are included:
• To configure the fxo1 PSTN interface
• To configure basic PBX system and voicemail notification settings
• To add a VoIP provider
• To add a dial plan for dialing the PSTN and the main office
• To add the extensions that are on the branch office internal network
To configure the fxo1 PSTN interface
This procedure describes how to configure the FortiGate Voice fxo1 PSTN interface to
connect the FortiGate Voice unit to one PSTN phone line. If you have more PSTN phone
lines you can connect and configure more fxo interfaces. Skip this procedure if your
FortiGate Voice unit does not include PSTN interfaces.
1 Go to System > Network > PSTN Interface and edit the fxo1 interface.
2 Configure the following settings.
IP Address 172.20.120.20
Subnet Mask 255.255.255.0
Default Gateway 172.20.120.10
DNS Server 172.20.120.10
Phone Number Enter the phone number of the PSTN phone line as provided by your
phone service provider.
The phone number is used for caller ID for calls from the FortiGate
Voice unit to the PSTN. It can be any number, but is usually the
actual phone number of the PSTN line connected to the fxo1
interface. Area code and country codes are optional.
Display Name This name is used for caller ID for calls from the FortiGate Voice unit
to the PSTN. It can be any name, such as a company name, that
identifies the branch office.
Caller ID Options Configure the following options to support caller ID functions for calls
from the internal network to the PSTN.
Catch Caller ID Select to enable the FortiGate Voice unit to receive caller ID
information from calls originating on the PSTN and send the caller ID
information to the extension that answers the call.