132CHAPTER 11: MANAGING MEDIA GATEWAYS

4Double-click a field to choose the upgrade file.

The drop-down list in each field displays all of the installed software upgrade files on the server. There are several types of upgrade files:

■CMP files—actual system upgrades of software versions for the gateway.

■CPT files—call progress tones.

■FXO and FXS files—Foreign Exchange Office; Foreign Exchange Station.

■VP files—voice profiles.

5Click Save all.

6From the Explorer tab, right-click on the media gateway and select the appropriate type of upgrade from the pop-up menu.

Only those upgrade types that have been chosen in step 4 will be enabled for selection.