Configuring local survivability

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).

With this solution, you have one place to look for the routing rules, logs, call records, and call recordings. You can see the whole setup, make changes, or modify records. If you add an extension, it is operational immediately. Any users at any location will be able to call that new extension right away without waiting for configurations to sync up, or new policies required to be set at each location.

If the communication between the FortiVoice unit at the central office FortiVoice unit and the branch office FortiVoice units stops, branch office FortiVoice units (survivability branches) will kick in to provide access to lines until the communication is restored between the central unit and the extensions.

The following FortiVoice phone system models can manage one or more survivability branches:

• FVE-300E-T and larger
• FVE-VM-500 and larger

The supported FortiVoice survivability branch models are:

• FVE-20E2
• FVE-20E4
• FVE-50E6
• FVE-100F
• FVE-200F8
• FVE-500F

The FortiVoice phone system continues to support FVE-100E as a FortiVoice LSG model. However, this model has reached its end-of-order (EOO) date.

The FortiVoice LSG solution supports the following gateways at the branch office:

• FortiVoice Gateway GO08, a foreign exchange office (FXO) gateway

• FortiVoice Gateway GS16, a foreign exchange subscriber (FXS) gateway

• FortiVoice Gateway GT01 and GT02, primary rate interface (PRI) gateways

FVE models and supported number of survivability branches

FVE model	Number of survivability branches supported
FVE-300E-T	10
FVE-500F and FVE-VM-500	15
FVE-VM-1000	20
FVE-2000F and FVE-VM-2000	40
FVE-VM-3000	40
FVE-5000F and FVE-VM-5000	100
FVE-VM-10000	150
FVE-VM-20000	250
FVE-VM-50000	500

To deploy a survivability branch

For detailed instructions about deploying a survivability branch, see the FortiVoice Local Survivable Gateway Deployment Guide.

To view the list of added survivability branches

Go to Managed System > Survivability > Survivability Branch.

GUI field	Description
Actions
Apply configuration	Select a branch FortiVoice unit from the list and click this option to apply the FortiVoice configuration file to this branch unit and reboot the unit immediately.
View configuration	Select a branch FortiVoice unit from the list and click this option to display the configuration file applied to this unit.
Fetch Device Info	Select a branch FortiVoice unit from the list and click this option to retrieve its information.
Upgrade
Now	Select a branch FortiVoice unit and select this option to upgrade it now.
Custom Time	Select a branch FortiVoice unit and select this option to upgrade it later.