Upload an announcement file to a USB mass storage device, using the copy announcement-file usb command.
Specify the file name of the announcement file in the Branch Gateway announcement directory, followed by the name of the USB device, and, optionally, a destination file name, including the full path.
Example
Gxxx-001(super)# copy announcement-file usb local_announcement2.wav
usb-device0 remote_announcement2.wav