AudioCodes Mediant 1000 User Manual page 428

The following figure illustrates standard MSCML application architecture:
The architecture comprises the following components:

device: Operating independently, the device controls and allocates its processing
resources to match each application's requirements. Its primary role is to handle
requests from the Application server for playing announcements and collecting digits.

Application Server: An application platform that controls the call signaling. It
interfaces with the device using MSCML. It instructs the media server to play
announcements, collect digits and record voice streams.

Audio Provisioning Server (APS): The APS is used for offline generation of .dat files
of audio packages including audio files, audio sequences, and different languages for
variable announcement playing. These can be later loaded to the device.

Remote Storage: An HTTP server that contains less-frequently used voice prompts
for playback and to which voice stream recording is performed.

IP Phones / MediaPack: Client applications.
20.1.2.2.1 Operation
The APS server can be used to generate two files - the audio package as a VP.dat file, and
an XML file (segments.xml) that contains indices to the announcements stored on the
VP.dat file for playing announcements. These two files can be loaded to the device using
the Web interface.
An alternative method uses the AutoUpdate mechanism as described in the Product
Reference Manual. Both the vp.dat and segments.xml files that were previously created
using the APS should be located on an external storage server (HTTP, FTP). At startup,
the device fetches the files from the remote storage. By using the AutoUpdate mechanism,
the device periodically checks if new files are posted to the remote server and fetches
these files.
SIP User's Manual 428
Mediant 600 & Mediant 1000
Document #: LTRT-83310