We have planned maintenance on our site and the VMware machine is excepted to be down for 3 hours. Is there a procedure to shut down the SBC prior to the maintenance window?
You can shut down the SBC using SSH with the ‘shutdown -hP now’ command.
Shutdown - TBwiki (telcobridges.com)
And to bring the SBC up, you can simply launch the SBC via the VMWare management interface.