You can configure an FXO gateway to be on the same LAN as the FortiVoice phone system or over a VPN.
The FortiVoice phone system manages all configuration information for extensions and ports. However, the FXO gateway manages the following settings:
- Network settings
- Administrator accounts
- System options
- SIP settings
The following image shows an example topology of a FortiVoice phone system with a FortiVoice Gateway GO08: