Installation guide

Release Notes for Cisco Voice Interworking Service Module Release 3.0(0)

Part Number OL-2523-01 Rev. B0, January 9, 2004

VISM Features

VISM Announcement Cache Management

VISM maintains an announcement cache in resident memory. When an announcement is requested to be

played, it is retrieved from the announcement file server and placed in the on-board announcement cache.

Subsequent requests for the same announcement do not require retrieval of the announcement file from

the announcement file server.

Note An announcement in one encoding is a different file than the same announcement in a different

encoding.

Announcement Expiry

You can provision an announcement aging policy. Once an announcement has aged (reached expiry) in

the on-board cache, it is refreshed—retrieved again from the announcement file server. This provides

you with the means to balance the cost of file server access with the time before an announcement

changed on the file server is propagated to the VISM. In addition, you can delete dynamic files from the

announcement cache at any time.

Permanent Announcements

You can provision permanent announcements for VISM. A permanent announcement is retrieved from

the announcement file server and installed permanently in the VISM announcement file cache.

Permanent announcements are excluded from aging (and being automatically refreshed) and excluded

from being replaced if the announcement cache becomes full. Permanent announcements can only be

removed from the cache explicitly by using a CLI command. If VISM is reset or fails over to a standby

card, permanent announcements are retrieved as soon as the card becomes active. The announcement

encoding must be specified when provisioning or deleting permanent announcements.

Use the following new CLI commands to configure the announcement file system feature:

• addannpermanent

• cnfannagetime

• cnfanndn

• cnfannpathprefix

• cnfannprefcodec

• cnfannreqtimeout

• delannalldynamic

• delanndynamic

• delannpermanent

• dspannagetime

• dspanncache

• dspanncontrols

• dspanndn

• dspannpathprefix

• dspannpermanents