In a centralized multi-site network deployment, a FortiVoice local survivability solution provides resiliency with survivability branches. A survivability branch is a FortiVoice local survivable gateway (LSG) unit with local extensions. A FortiVoice LSG unit is located in a branch office. A FortiVoice phone system in a main office manages one or more FortiVoice LSG units (survivability branches).
Local survivability provides the following benefits:
- Centralized management
- The main office handles all inbound calls thereby consolidating the number of lines required for an organization. The FortiVoice phone system at the main office sends consolidated configuration files and extensions to FortiVoice LSG units (survivability branches). Under normal operating conditions, a FortiVoice LSG unit in a branch office operates as a proxy server.
- With the FortiVoice local survivability solution, you have one place to look for routing rules, logs, call records, and call recordings. If an extension is added, it is operational immediately. Any user at any location is able to call that new extension right away without waiting for configuration synchronization or new policies setup to be completed at each location.
- Branch office resiliency
- A FortiVoice LSG unit provides branch office resiliency for a centralized multi-site network deployment.
- If the main office becomes unavailable or the communication between the main office and branch office is interrupted, the FortiVoice LSG unit at the branch office operates as an IP PBX to provide the phone service until the main office is available or the communication between the main office and branch office is restored.