Upgrade Overview for BGF VoIP Users
As a voice user, exercise caution in preparing for and executing a software upgrade. By doing so, you can ensure the proper handling of emergency calls and minimize overall disruption of service to customers. The following list describes how to prepare to upgrade a router used for voice processing.
- Back up—Back up your current configuration.
- Upload new software—In a dual Routing Engine configuration, upload the software to the backup Routing Engine.
- Redirect—Configure gateway controllers to redirect calls for all virtual BGFs on the device to virtual BGFs not subject to the upgrade. Refer to the documentation for your gateway controller for details.
- Perform a graceful shutdown of all virtual BGFs—Initiate
a graceful shutdown for each virtual BGF to prevent initiation of
new calls.
For detailed information on how to perform a graceful shutdown, refer to Performing a Graceful Shutdown of a Virtual BGF.
- Check emergency calls—For each virtual BGF, confirm
that no emergency calls are active.
For detailed information on checking active calls, refer to hManaging Emergency and Non-Emergency Call Traffic Prior to Upgrading.
- Check remaining active calls—For each virtual BGF, continue checking active calls until either none remain or you force the shutdown of the virtual BGF to terminate remaining non-emergency calls.
- Upgrade—Refer to the Junos OS Installation and Upgrade Guide for detailed upgrade instructions.
